| Rank | Czech as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 3.9% | Boonton Township School District / 4,397 |
| 2. | 3.9% | Dunellen Borough School District / 6,940 |
| 3. | 3.6% | Washington Township School District / 6,867 |
| 3. | 3.6% | Belvidere Town School District / 2,655 |
| 5. | 2.7% | Hope Township School District / 1,968 |
| 6. | 2.5% | Hardyston Township School District / 8,188 |
| 7. | 2.4% | Franklin Borough School District / 5,127 |
| 7. | 2.4% | High Bridge Borough School District / 3,702 |
| 9. | 2.4% | Montvale Borough School District / 7,353 |
| 10. | 2.3% | Ho-Ho-Kus Borough School District / 4,010 |
| 11. | 2.2% | Long Hill Township School District / 8,629 |
| 12. | 2.2% | Little Ferry Borough School District / 10,468 |
| 12. | 2.2% | Morris Plains Borough School District / 5,889 |
| 14. | 1.9% | Woodlynne Borough School District / 2,698 |
| 15. | 1.9% | Wallkill Valley Regional School District / 19,375 |
| 16. | 1.8% | Lopatcong Township School District / 8,307 |
| 17. | 1.8% | Greenwich Township School District / 5,134 |
| 18. | 1.7% | East Amwell Township School District / 4,491 |
| 19. | 1.7% | Chester Township School District / 9,163 |
| 20. | 1.6% | Roosevelt Borough School District / 950 |
| 21. | 1.6% | Kenilworth Borough School District / 7,617 |
| 22. | 1.6% | White Township School District / 5,795 |
| 23. | 1.6% | Hanover Township School District / 13,591 |
| 23. | 1.6% | South Amboy City School District / 7,768 |
| 25. | 1.6% | Northvale Borough School District / 4,593 |
| 26. | 1.5% | Berkeley Heights Township School District / 13,312 |
| 26. | 1.5% | Washington Township School District / 18,384 |
| 26. | 1.5% | Beach Haven Borough School District / 1,643 |
| 29. | 1.4% | Readington Township School District / 16,149 |
| 29. | 1.4% | Byram Township School District / 8,513 |
| 29. | 1.4% | Frankford Township School District / 5,607 |
| 32. | 1.4% | Name N/A / 1,527 |
| 33. | 1.4% | Sussex-Wantage Regional School District / 13,387 |
| 34. | 1.4% | Metuchen Borough School District / 13,070 |
| 34. | 1.4% | Warren Hills Regional School District / 24,860 |
| 34. | 1.4% | Upper Township School District / 11,256 |
| 37. | 1.4% | Kingwood Township School District / 4,026 |
| 38. | 1.3% | Lafayette Township School District / 2,480 |
| 39. | 1.3% | High Point Regional School District / 22,455 |
| 40. | 1.3% | Rockaway Township School District / 25,313 |
| 40. | 1.3% | Kinnelon Borough School District / 9,546 |
| 42. | 1.3% | Wildwood City School District / 5,250 |
| 42. | 1.3% | Frelinghuysen Township School District / 2,112 |
| 42. | 1.3% | Milford Borough School District / 1,313 |
| 45. | 1.3% | Name N/A / 1,369 |
| 45. | 1.3% | Interlaken Borough School District / 893 |
| 45. | 1.3% | Fair Haven Borough School District / 5,945 |
| 48. | 1.3% | Lenape Valley Regional School District / 15,350 |
| 49. | 1.3% | West Morris Regional School District / 38,140 |
| 49. | 1.3% | Watchung Hills Regional School District / 30,591 |
| 51. | 1.2% | Warren Township School District / 15,717 |
| 52. | 1.2% | Point Pleasant Borough School District / 20,022 |
| 53. | 1.2% | Scotch Plains-Fanwood Regional School District / 29,902 |
| 54. | 1.2% | Woodland Township School District / 842 |
| 54. | 1.2% | Delran Township School District / 16,949 |
| 56. | 1.1% | Hunterdon Central Regional School District / 52,053 |
| 56. | 1.1% | Clinton Town School District / 2,570 |
| 58. | 1.1% | Montville Township School District / 21,077 |
| 58. | 1.1% | Netcong Borough School District / 3,241 |
| 60. | 1.1% | Ogdensburg Borough School District / 2,572 |
| 61. | 1.1% | Randolph Township School District / 25,219 |
| 61. | 1.1% | Stanhope Borough School District / 3,596 |
| 61. | 1.1% | Englewood Cliffs Borough School District / 5,724 |
| 61. | 1.1% | Harrington Park Borough School District / 4,840 |
| 61. | 1.1% | Laurel Springs Borough School District / 2,294 |
| 66. | 1.1% | Vernon Township School District / 24,999 |
| 67. | 1.1% | Island Heights Borough School District / 1,506 |
| 67. | 1.1% | Saddle River Borough School District / 3,747 |
| 67. | 1.1% | Flemington-Raritan Regional School District / 26,724 |
| 70. | 1.0% | Lebanon Township School District / 6,225 |
| 70. | 1.0% | Clementon Borough School District / 4,908 |
| 70. | 1.0% | Newton Town School District / 8,205 |
| 73. | 1.0% | Oxford Township School District / 2,598 |
| 73. | 1.0% | Harmony Township School District / 2,809 |
| 75. | 1.0% | Roxbury Township School District / 23,247 |
| 75. | 1.0% | Bloomingdale Borough School District / 7,435 |
| 77. | 1.0% | Manasquan Borough School District / 6,270 |
| 78. | 1.0% | Green Brook Township School District / 6,796 |
| 79. | 1.0% | Clark Township School District / 14,349 |
| 80. | 1.0% | Tuckerton Borough School District / 3,855 |
| 81. | 0.9% | Morris Hills Regional School District / 54,119 |
| 81. | 0.9% | Franklin Lakes Borough School District / 11,357 |
| 81. | 0.9% | Bay Head Borough School District / 1,278 |
| 84. | 0.9% | Wyckoff Township School District / 16,836 |
| 84. | 0.9% | Ramapo-Indian Hill Regional School District / 41,475 |
| 84. | 0.9% | Nutley Town School District / 26,355 |
| 87. | 0.9% | Manville Borough School District / 10,581 |
| 87. | 0.9% | Clinton Township School District / 13,887 |
| 87. | 0.9% | Oakland Borough School District / 13,282 |
| 90. | 0.9% | Rockleigh Borough School District / 603 |
| 90. | 0.9% | Bernards Township School District / 26,436 |
| 90. | 0.9% | Elmwood Park Borough School District / 18,545 |
| 93. | 0.9% | Middlesex Borough School District / 13,604 |
| 93. | 0.9% | Great Meadows Regional School District / 8,605 |
| 95. | 0.9% | Woodbury Heights Borough School District / 3,035 |
| 96. | 0.9% | Brielle Borough School District / 4,898 |
| 97. | 0.9% | Chesterfield Township School District / 6,974 |
| 97. | 0.9% | Little Falls Township School District / 11,622 |
| 99. | 0.9% | Pitman Borough School District / 9,233 |
| 100. | 0.8% | Ewing Township School District / 36,331 |
| 101. | 0.8% | Hopewell Valley Regional School District / 22,348 |
| 101. | 0.8% | Mansfield Township School District / 8,129 |
| 101. | 0.8% | Hampton Borough School District / 1,909 |
| 104. | 0.8% | Pittsgrove Township School District / 9,446 |
| 104. | 0.8% | Frenchtown Borough School District / 1,433 |
| 106. | 0.8% | West Long Branch Borough School District / 8,378 |
| 106. | 0.8% | Milltown Borough School District / 6,952 |
| 108. | 0.8% | Delaware Valley Regional School District / 17,096 |
| 108. | 0.8% | Spring Lake Borough School District / 3,529 |
| 110. | 0.8% | South Orange-Maplewood School District / 38,897 |
| 110. | 0.8% | Shamong Township School District / 6,768 |
| 110. | 0.8% | Allamuchy Township School District / 4,220 |
| 110. | 0.8% | Rumson-Fair Haven Regional School District / 13,212 |
| 110. | 0.8% | Galloway Township School District / 36,037 |
| 110. | 0.8% | Princeton Regional School District / 30,732 |
| 110. | 0.8% | Lacey Township School District / 26,323 |
| 117. | 0.8% | Haworth Borough School District / 3,382 |
| 117. | 0.8% | Emerson Borough School District / 7,264 |
| 119. | 0.8% | Morris Township School District / 39,854 |
| 119. | 0.8% | Bedminster Township School District / 8,304 |
| 119. | 0.8% | Middletown Township School District / 66,574 |
| 119. | 0.8% | North Hunterdon-Voorhees Regional School District / 52,335 |
| 119. | 0.8% | Fairfield Township School District / 7,502 |
| 124. | 0.8% | Westfield Town School District / 29,416 |
| 124. | 0.8% | Hopatcong Borough School District / 15,625 |
| 126. | 0.7% | Northfield City School District / 7,911 |
| 126. | 0.7% | Moonachie Borough School District / 2,765 |
| 126. | 0.7% | Ramsey Borough School District / 14,496 |
| 126. | 0.7% | Pohatcong Township School District / 3,338 |
| 126. | 0.7% | Pascack Valley Regional School District / 32,661 |
| 131. | 0.7% | Berkeley Township School District / 42,657 |
| 131. | 0.7% | New Providence Borough School District / 11,797 |
| 131. | 0.7% | Alexandria Township School District / 5,072 |
| 131. | 0.7% | Wayne Township School District / 53,812 |
| 135. | 0.7% | North Warren Regional School District / 12,687 |
| 135. | 0.7% | The Chathams School District / 18,366 |
| 137. | 0.7% | Central Regional School District / 51,683 |
| 137. | 0.7% | Jefferson Township School District / 21,538 |
| 137. | 0.7% | Hanover Park Regional School District / 37,401 |
| 137. | 0.7% | Toms River Regional School District / 112,244 |
| 141. | 0.7% | Westwood Regional School District / 20,197 |
| 141. | 0.7% | Green Township School District / 3,537 |
| 141. | 0.7% | Jackson Township School District / 52,497 |
| 141. | 0.7% | Ocean Gate Borough School District / 1,886 |
| 141. | 0.7% | Delanco Township School District / 4,384 |
| 146. | 0.7% | Fair Lawn Borough School District / 30,570 |
| 146. | 0.7% | Oradell Borough School District / 7,790 |
| 148. | 0.7% | Rockaway Borough School District / 6,288 |
| 148. | 0.7% | Denville Township School District / 16,420 |
| 150. | 0.7% | Hamilton Township School District / 89,767 |
| 150. | 0.7% | Magnolia Borough School District / 4,354 |
| 152. | 0.7% | Butler Borough School District / 8,038 |
| 153. | 0.7% | Midland Park Borough School District / 6,762 |
| 153. | 0.7% | Parsippany-Troy Hills Township School District / 50,508 |
| 153. | 0.7% | Linden City School District / 39,173 |
| 156. | 0.6% | Hillsborough Township School District / 38,225 |
| 156. | 0.6% | Wanaque Borough School District / 11,408 |
| 156. | 0.6% | Alpha Borough School District / 2,576 |
| 156. | 0.6% | Seaside Heights Borough School District / 3,295 |
| 156. | 0.6% | Berlin Borough School District / 7,901 |
| 161. | 0.6% | Mantua Township School District / 15,135 |
| 161. | 0.6% | Linwood City School District / 7,256 |
| 161. | 0.6% | Longport Borough School District / 1,161 |
| 161. | 0.6% | River Dell Regional School District / 18,434 |
| 161. | 0.6% | Blairstown Township School District / 5,920 |
| 161. | 0.6% | Southern Regional School District / 35,692 |
| 167. | 0.6% | Bordentown Regional School District / 14,729 |
| 168. | 0.6% | Lakeland Regional School District / 24,008 |
| 168. | 0.6% | Garwood Borough School District / 4,204 |
| 168. | 0.6% | Long Beach Island School District / 7,801 |
| 171. | 0.6% | South River Borough School District / 15,662 |
| 171. | 0.6% | Hazlet Township School District / 21,072 |
| 173. | 0.6% | Mount Olive Township School District / 25,802 |
| 173. | 0.6% | Paramus Borough School District / 26,055 |
| 173. | 0.6% | Ringwood Borough School District / 12,600 |
| 173. | 0.6% | Bogota Borough School District / 7,929 |
| 173. | 0.6% | Glen Ridge Borough School District / 6,755 |
| 173. | 0.6% | River Edge Borough School District / 10,644 |
| 179. | 0.6% | Stafford Township School District / 26,248 |
| 179. | 0.6% | Waterford Township School District / 10,658 |
| 179. | 0.6% | Branchburg Township School District / 14,876 |
| 179. | 0.6% | West Milford Township School District / 27,601 |
| 179. | 0.6% | West Windsor-Plainsboro Regional School District / 47,152 |
| 184. | 0.6% | South Hackensack Township School District / 2,428 |
| 184. | 0.6% | Lumberton Township School District / 12,114 |
| 186. | 0.6% | Logan Township School District / 6,216 |
| 186. | 0.6% | Brick Township School District / 78,321 |
| 188. | 0.6% | Lincoln Park Borough School District / 10,668 |
| 188. | 0.6% | Verona Borough School District / 12,227 |
| 188. | 0.6% | Medford Lakes Borough School District / 4,130 |
| 191. | 0.5% | Summit City School District / 20,657 |
| 191. | 0.5% | South Plainfield Borough School District / 22,569 |
| 191. | 0.5% | Name N/A / 2,183,102 |
| 194. | 0.5% | Millburn Township School District / 18,694 |
| 194. | 0.5% | South Bound Brook Borough School District / 4,785 |
| 196. | 0.5% | Cranford Township School District / 21,941 |
| 196. | 0.5% | Roseland Borough School District / 5,329 |
| 196. | 0.5% | Colts Neck Township School District / 10,113 |
| 196. | 0.5% | Mendham Borough School District / 5,077 |
| 196. | 0.5% | Livingston Township School District / 27,597 |
| 196. | 0.5% | Cherry Hill Township School District / 71,061 |
| 196. | 0.5% | Tewksbury Township School District / 6,040 |
| 203. | 0.5% | Point Pleasant Beach Borough School District / 5,406 |
| 203. | 0.5% | Howell Township School District / 51,272 |
| 203. | 0.5% | Cranbury Township School District / 3,912 |
| 206. | 0.5% | Greater Egg Harbor Regional School District / 70,688 |
| 206. | 0.5% | Lebanon Borough School District / 1,267 |
| 206. | 0.5% | Pequannock Township School District / 16,423 |
| 206. | 0.5% | Runnemede Borough School District / 8,446 |
| 210. | 0.5% | Franklin Township School District / 3,133 |
| 210. | 0.5% | Bradley Beach Borough School District / 4,867 |
| 210. | 0.5% | Name N/A / 433 |
| 213. | 0.5% | Franklin Township School District / 17,050 |
| 213. | 0.5% | Pine Hill Borough School District / 11,291 |
| 213. | 0.5% | Hampton Township School District / 5,145 |
| 213. | 0.5% | West Essex Regional School District / 21,967 |
| 213. | 0.5% | New Hanover Township School District / 5,387 |
| 213. | 0.5% | Clifton City School District / 78,049 |
| 213. | 0.5% | Dover Town School District / 17,996 |
| 220. | 0.5% | Lakewood Township School District / 70,046 |
| 220. | 0.5% | Stillwater Township School District / 4,331 |
| 220. | 0.5% | Spotswood Borough School District / 8,120 |
| 223. | 0.5% | Califon Borough School District / 1,361 |
| 223. | 0.5% | Bridgewater-Raritan Regional School District / 50,950 |
| 225. | 0.5% | Millstone Township School District / 10,188 |
| 225. | 0.5% | Mahwah Township School District / 24,108 |
| 227. | 0.4% | Pinelands Regional School District / 27,116 |
| 227. | 0.4% | Jamesburg Borough School District / 6,348 |
| 227. | 0.4% | Northern Valley Regional School District / 38,574 |
| 227. | 0.4% | Hillsdale Borough School District / 9,854 |
| 227. | 0.4% | Hoboken City School District / 39,978 |
| 227. | 0.4% | Hillside Township School District / 21,229 |
| 233. | 0.4% | Sparta Township School District / 19,144 |
| 233. | 0.4% | Deerfield Township School District / 3,229 |
| 233. | 0.4% | Highland Park Borough School District / 14,107 |
| 233. | 0.4% | Eagleswood Township School District / 1,707 |
| 233. | 0.4% | Fort Lee Borough School District / 36,235 |
| 238. | 0.4% | Tabernacle Township School District / 7,216 |
| 238. | 0.4% | Mainland Regional School District / 26,576 |
| 238. | 0.4% | Dennis Township School District / 5,860 |
| 241. | 0.4% | Ridgefield Borough School District / 10,812 |
| 241. | 0.4% | Shore Regional School District / 19,345 |
| 241. | 0.4% | Sayreville Borough School District / 42,104 |
| 241. | 0.4% | Lyndhurst Township School District / 19,230 |
| 241. | 0.4% | Hawthorne Borough School District / 17,909 |
| 241. | 0.4% | Pennsauken Township School District / 35,160 |
| 247. | 0.4% | Freehold Regional School District / 189,519 |
| 247. | 0.4% | Seaside Park Borough School District / 2,339 |
| 247. | 0.4% | Wharton Borough School District / 6,098 |
| 247. | 0.4% | Montclair Town School District / 36,945 |
| 247. | 0.4% | Greenwich Township School District / 805 |
| 247. | 0.4% | Boonton Town School District / 8,451 |
| 247. | 0.4% | Monroe Township School District / 32,464 |
| 254. | 0.4% | Springfield Township School District / 3,498 |
| 254. | 0.4% | Wood-Ridge Borough School District / 7,453 |
| 254. | 0.4% | Downe Township School District / 1,756 |
| 254. | 0.4% | Tinton Falls Borough School District / 20,419 |
| 254. | 0.4% | Florence Township School District / 11,433 |
| 254. | 0.4% | Monroe Township School District / 35,598 |
| 254. | 0.4% | Mendham Township School District / 5,516 |
| 254. | 0.4% | Lake Como Borough School District / 1,861 |
| 254. | 0.4% | Marlboro Township School District / 40,378 |
| 254. | 0.4% | Delsea Regional High School School District / 20,950 |
| 264. | 0.4% | Collingswood Borough School District / 13,928 |
| 264. | 0.4% | East Greenwich Township School District / 7,279 |
| 264. | 0.4% | Haddonfield Borough School District / 11,489 |
| 264. | 0.4% | Mount Holly Township School District / 10,389 |
| 264. | 0.4% | Swedesboro-Woolwich School District / 11,034 |
| 264. | 0.4% | Moorestown Township School District / 19,646 |
| 264. | 0.4% | Fairview Borough School District / 13,419 |
| 264. | 0.4% | Fairfield Township School District / 6,774 |
| 264. | 0.4% | Hackettstown Town School District / 9,435 |
| 273. | 0.4% | Union Township School District / 6,250 |
| 273. | 0.4% | Deptford Township School District / 30,338 |
| 273. | 0.4% | Ocean Township School District / 8,545 |
| 276. | 0.4% | Lawrence Township School District / 31,528 |
| 276. | 0.4% | Wenonah Borough School District / 2,251 |
| 276. | 0.4% | Little Egg Harbor Township School District / 20,368 |
| 276. | 0.4% | Kittatinny Regional School District / 14,756 |
| 276. | 0.4% | Barnegat Township School District / 21,618 |
| 276. | 0.4% | Winfield Township School District / 1,540 |
| 282. | 0.4% | Clearview Regional School District / 27,188 |
| 282. | 0.4% | Freehold Borough School District / 11,473 |
| 282. | 0.4% | Freehold Township School District / 34,502 |
| 282. | 0.4% | Old Tappan Borough School District / 5,943 |
| 282. | 0.4% | Haddon Heights Borough School District / 7,471 |
| 282. | 0.4% | Hopewell Township School District / 4,767 |
| 282. | 0.4% | Kingsway Regional School District / 21,365 |
| 282. | 0.4% | Passaic Valley Regional School District / 33,613 |
| 282. | 0.4% | Rumson Borough School District / 7,267 |
| 282. | 0.4% | Evesham Township School District / 45,770 |
| 292. | 0.3% | Leonia Borough School District / 8,619 |
| 292. | 0.3% | Montgomery Township School District / 22,785 |
| 292. | 0.3% | Holmdel Township School District / 16,931 |
| 292. | 0.3% | Monmouth Beach Borough School District / 3,601 |
| 292. | 0.3% | Somerville Borough School District / 12,503 |
| 292. | 0.3% | Eastern Camden County Regional School District / 41,305 |
| 298. | 0.3% | Caldwell-West Caldwell School District / 17,732 |
| 298. | 0.3% | Port Republic City School District / 996 |
| 298. | 0.3% | Manalapan-Englishtown Regional School District / 40,270 |
| 301. | 0.3% | South Brunswick Township School District / 40,485 |
| 301. | 0.3% | Weymouth Township School District / 2,679 |
| 301. | 0.3% | Manchester Township School District / 41,780 |
| 301. | 0.3% | Middle Township School District / 16,409 |
| 301. | 0.3% | Haddon Township School District / 14,408 |
| 301. | 0.3% | Upper Saddle River Borough School District / 8,386 |
| 307. | 0.3% | Hackensack City School District / 42,768 |
| 307. | 0.3% | Woodbridge Township School District / 97,922 |
| 307. | 0.3% | Name N/A / 1,978 |
| 307. | 0.3% | Piscataway Township School District / 52,112 |
| 307. | 0.3% | Ridgewood Village School District / 24,181 |
| 307. | 0.3% | Maurice River Township School District / 8,099 |
| 307. | 0.3% | Hamilton Township School District / 24,201 |
| 307. | 0.3% | Avon-by-the-Sea Borough School District / 2,270 |
| 315. | 0.3% | Hasbrouck Heights Borough School District / 11,389 |
| 315. | 0.3% | Rancocas Valley Regional School District / 43,712 |
| 315. | 0.3% | Voorhees Township School District / 30,788 |
| 315. | 0.3% | Matawan-Aberdeen Regional School District / 27,395 |
| 315. | 0.3% | West Deptford Township School District / 21,719 |
| 315. | 0.3% | Rutherford Borough School District / 17,506 |
| 315. | 0.3% | Old Bridge Township School District / 65,036 |
| 322. | 0.3% | Elsinboro Township School District / 1,109 |
| 322. | 0.3% | Harrison Town School District / 14,369 |
| 322. | 0.3% | Ocean Township School District / 28,301 |
| 322. | 0.3% | Upper Freehold Regional School District / 8,680 |
| 322. | 0.3% | Waldwick Borough School District / 9,477 |
| 322. | 0.3% | Roselle Park Borough School District / 12,821 |
| 322. | 0.3% | Carteret Borough School District / 22,512 |
| 322. | 0.3% | East Brunswick Township School District / 47,148 |
| 322. | 0.3% | Riverdale Borough School District / 2,924 |
| 322. | 0.3% | Beverly City School District / 2,597 |
| 332. | 0.3% | Estell Manor City School District / 1,539 |
| 332. | 0.3% | Union Beach Borough School District / 6,669 |
| 332. | 0.3% | Holland Township School District / 5,252 |
| 332. | 0.3% | North Plainfield Borough School District / 21,315 |
| 332. | 0.3% | Lenape Regional School District / 138,216 |
| 332. | 0.3% | Glassboro Borough School District / 19,560 |
| 332. | 0.3% | Englewood City School District / 27,829 |
| 332. | 0.3% | Secaucus Town School District / 15,408 |
| 340. | 0.3% | Gateway Regional School District / 12,985 |
| 340. | 0.3% | Woodbine Borough School District / 2,696 |
| 340. | 0.3% | North Caldwell Borough School District / 7,086 |
| 340. | 0.3% | Neptune City School District / 5,162 |
| 340. | 0.3% | Glen Rock Borough School District / 11,151 |
| 340. | 0.3% | Bound Brook Borough School District / 10,171 |
| 340. | 0.3% | Lavallette Borough School District / 2,754 |
| 340. | 0.3% | Union Township School District / 53,796 |
| 340. | 0.3% | Edison Township School District / 98,996 |
| 340. | 0.3% | New Brunswick City School District / 50,326 |
| 340. | 0.3% | Springfield Township School District / 14,689 |
| 340. | 0.3% | Maple Shade Township School District / 19,251 |
| 352. | 0.3% | Spring Lake Heights Borough School District / 5,154 |
| 352. | 0.3% | Mountain Lakes Borough School District / 4,272 |
| 352. | 0.3% | Harding Township School District / 3,302 |
| 352. | 0.3% | Burlington City School District / 9,540 |
| 352. | 0.3% | Bloomfield Township School District / 44,392 |
| 357. | 0.3% | Ridgefield Park Township School District / 12,407 |
| 357. | 0.3% | Keyport Borough School District / 7,521 |
| 357. | 0.3% | Bayonne City School District / 58,004 |
| 357. | 0.3% | Montague Township School District / 3,862 |
| 361. | 0.2% | Saddle Brook Township School District / 13,576 |
| 361. | 0.2% | Little Silver Borough School District / 6,160 |
| 361. | 0.2% | Andover Regional School District / 7,172 |
| 361. | 0.2% | Egg Harbor Township School District / 39,162 |
| 361. | 0.2% | Bellmawr Borough School District / 11,177 |
| 361. | 0.2% | Cape May City School District / 3,731 |
| 361. | 0.2% | East Hanover Township School District / 11,409 |
| 361. | 0.2% | Northern Burlington Regional School District / 30,316 |
| 361. | 0.2% | Red Bank Borough School District / 11,922 |
| 361. | 0.2% | Burlington Township School District / 21,446 |
| 361. | 0.2% | Dumont Borough School District / 16,988 |
| 361. | 0.2% | Edgewater Park Township School District / 7,822 |
| 361. | 0.2% | Wildwood Crest Borough School District / 3,987 |
| 361. | 0.2% | Palisades Park Borough School District / 19,037 |
| 361. | 0.2% | Wall Township School District / 26,226 |
| 361. | 0.2% | Riverton Borough School District / 2,675 |
| 377. | 0.2% | Southampton Township School District / 10,882 |
| 377. | 0.2% | Neptune Township School District / 28,416 |
| 377. | 0.2% | Lower Township School District / 20,612 |
| 377. | 0.2% | Monmouth Regional School District / 34,626 |
| 377. | 0.2% | Cumberland Regional School District / 25,827 |
| 377. | 0.2% | Folsom Borough School District / 1,804 |
| 383. | 0.2% | Pompton Lakes Borough School District / 11,005 |
| 383. | 0.2% | Woodbury City School District / 10,420 |
| 383. | 0.2% | Franklin Township School District / 58,898 |
| 383. | 0.2% | Lower Cape May Regional School District / 25,361 |
| 387. | 0.2% | Barrington Borough School District / 6,974 |
| 387. | 0.2% | Tenafly Borough School District / 14,324 |
| 387. | 0.2% | Eastampton Township School District / 6,573 |
| 387. | 0.2% | Hamburg Borough School District / 3,488 |
| 387. | 0.2% | Black Horse Pike Regional School District / 84,630 |
| 387. | 0.2% | Edgewater Borough School District / 9,507 |
| 387. | 0.2% | Somerset Hills Regional School District / 11,021 |
| 394. | 0.2% | Woodcliff Lake Borough School District / 5,865 |
| 394. | 0.2% | Red Bank Regional School District / 21,847 |
| 394. | 0.2% | North Brunswick Township School District / 39,333 |
| 394. | 0.2% | East Windsor Regional School District / 31,972 |
| 394. | 0.2% | Rahway City School District / 27,941 |
| 394. | 0.2% | North Bergen Township School District / 55,715 |
| 394. | 0.2% | Knowlton Township School District / 3,128 |
| 401. | 0.2% | Fredon Township School District / 3,324 |
| 401. | 0.2% | Pemberton Township School District / 28,340 |
| 401. | 0.2% | Phillipsburg Town School District / 14,580 |
| 401. | 0.2% | Winslow Township School District / 38,751 |
| 401. | 0.2% | Lodi Borough School District / 23,793 |
| 406. | 0.2% | South Harrison Township School District / 3,052 |
| 406. | 0.2% | Lower Alloways Creek Township School District / 1,948 |
| 406. | 0.2% | Northern Highlands Regional School District / 14,986 |
| 406. | 0.2% | Sterling High School Dist School District / 16,557 |
| 406. | 0.2% | Audubon Borough School District / 8,944 |
| 406. | 0.2% | Hainesport Township School District / 6,009 |
| 406. | 0.2% | Garfield City School District / 29,002 |
| 406. | 0.2% | Millville City School District / 28,397 |
| 414. | 0.2% | Teaneck Township School District / 38,713 |
| 414. | 0.2% | Gloucester Township School District / 65,007 |
| 414. | 0.2% | Roselle Borough School District / 20,666 |
| 414. | 0.2% | Perth Amboy City School District / 48,343 |
| 414. | 0.2% | Cliffside Park Borough School District / 22,677 |
| 414. | 0.2% | Madison Borough School District / 15,872 |
| 414. | 0.2% | Absecon City School District / 8,179 |
| 414. | 0.2% | Plumsted Township School District / 8,188 |
| 422. | 0.2% | Buena Regional School District / 11,158 |
| 422. | 0.2% | Mount Laurel Township School District / 39,658 |
| 422. | 0.2% | Woodland Park Borough School District / 11,487 |
| 422. | 0.2% | Delaware Township School District / 4,689 |
| 422. | 0.2% | Washington Borough School District / 6,731 |
| 427. | 0.2% | East Rutherford Borough School District / 8,746 |
| 427. | 0.2% | Vineland City School District / 58,426 |
| 427. | 0.2% | Cinnaminson Township School District / 15,288 |
| 430. | 0.1% | Washington Township School District / 51,909 |
| 430. | 0.1% | Florham Park Borough School District / 12,401 |
| 430. | 0.1% | Woodstown-Pilesgrove Regional School District / 7,798 |
| 433. | 0.1% | Medford Township School District / 22,950 |
| 434. | 0.1% | Elizabeth City School District / 124,101 |
| 434. | 0.1% | Jersey City School District / 239,127 |
| 434. | 0.1% | Asbury Park City School District / 16,652 |
| 434. | 0.1% | Highlands Borough School District / 5,295 |
| 434. | 0.1% | Maywood Borough School District / 9,176 |
| 434. | 0.1% | River Vale Township School District / 9,589 |
| 440. | 0.1% | West New York Town School District / 46,058 |
| 440. | 0.1% | Sandyston-Walpack Township School District / 1,956 |
| 440. | 0.1% | Wallington Borough School District / 11,244 |
| 440. | 0.1% | Park Ridge Borough School District / 8,833 |
| 444. | 0.1% | Essex Fells Borough School District / 2,050 |
| 444. | 0.1% | Cedar Grove Township School District / 12,603 |
| 444. | 0.1% | Keansburg Borough School District / 10,745 |
| 444. | 0.1% | West Orange Town School District / 43,190 |
| 448. | 0.1% | Robbinsville Township School District / 11,894 |
| 448. | 0.1% | Bergenfield Borough School District / 25,575 |
| 448. | 0.1% | Bass River Township School District / 1,186 |
| 448. | 0.1% | Trenton City School District / 83,066 |
| 448. | 0.1% | Carlstadt-East Rutherford School District / 14,708 |
| 448. | 0.1% | Margate City School District / 8,525 |
| 448. | 0.1% | New Milford Borough School District / 15,926 |
| 448. | 0.1% | Haledon Borough School District / 8,396 |
| 448. | 0.1% | Lindenwold Borough School District / 17,377 |
| 448. | 0.1% | Ventnor City City School District / 12,349 |
| 458. | 0.1% | Belleville Town School District / 33,881 |
| 458. | 0.1% | Mansfield Township School District / 7,927 |
| 458. | 0.1% | North Arlington Borough School District / 14,727 |
| 458. | 0.1% | Ocean City School District / 14,967 |
| 462. | 0.1% | Somers Point City School District / 11,409 |
| 462. | 0.1% | Hammonton Town School District / 13,445 |
| 462. | 0.1% | Long Branch City School District / 32,566 |
| 462. | 0.1% | Henry Hudson Regional School District / 9,921 |
| 466. | 0.1% | Bridgeton City School District / 24,438 |
| 466. | 0.1% | Camden City School District / 79,263 |
| 466. | 0.1% | Union City School District / 62,629 |
| 469. | 0.0% | Willingboro Township School District / 34,998 |
| 470. | 0.0% | Passaic County Manchester Regional School District / 22,860 |
| 470. | 0.0% | Atlantic City School District / 39,672 |
| 470. | 0.0% | Passaic City School District / 66,757 |
| 470. | 0.0% | Paterson City School District / 145,744 |
| 474. | 0.0% | Irvington Township School District / 56,613 |
| 474. | 0.0% | Plainfield City School District / 46,358 |
| 474. | 0.0% | East Orange City School District / 65,785 |
| 474. | 0.0% | Newark City School District / 276,555 |
| 478. | 0.0% | Kearny Town School District / 37,163 |
Please note that we only rank locations with 'Czech as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Czech as First Ancestry Population Percentage' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
