Local Data Search
A total of 379 results found. Show Results on Map.
| Rank | Median Household Income ▼ | City / Population |
| 1. | $250,001 | Messiah College, PA / 2,469 |
| 2. | $213,750 | Brookeville, MD / 165 |
| 3. | $170,735 | Fulton, MD / 1,966 |
| 4. | $147,955 | Greenville, DE / 2,453 |
| 5. | $136,932 | North Star, DE / 7,929 |
| 6. | $125,319 | Hockessin, DE / 12,919 |
| 7. | $118,348 | Highland, MD / 679 |
| 8. | $116,445 | Timber Hills, PA / 333 |
| 9. | $116,359 | West Laurel, MD / 4,741 |
| 10. | $115,357 | Ashton-Sandy Spring, MD / 5,350 |
| 11. | $112,500 | Hampton, MD / 4,888 |
| 12. | $111,374 | Ilchester, MD / 22,907 |
| 13. | $110,476 | Gambrills, MD / 2,575 |
| 14. | $110,341 | Severna Park, MD / 37,079 |
| 15. | $109,888 | Ellicott City, MD / 64,970 |
| 16. | $106,250 | Pylesville, MD / 588 |
| 17. | $106,111 | Pike Creek, DE / 8,025 |
| 18. | $103,482 | Pleasant Hills, MD / 3,561 |
| 19. | $103,083 | Eagleview, PA / 1,755 |
| 20. | $102,206 | Arden On The Severn, MD / 1,921 |
| 21. | $102,143 | Alleghenyville, PA / 828 |
| 22. | $101,737 | Scaggsville, MD / 22,995 |
| 23. | $100,625 | Arnold, MD / 22,483 |
| 24. | $99,659 | North Laurel, MD / 4,076 |
| 25. | $99,160 | Mount Airy, MD / 8,921 |
| 26. | $98,750 | Fallston, MD / 8,062 |
| 27. | $97,981 | Little Britain, PA / 219 |
| 28. | $97,605 | Eldersburg, MD / 31,632 |
| 29. | $95,733 | Mays Chapel, MD / 11,965 |
| 30. | $95,172 | Lake Heritage, PA / 1,680 |
| 31. | $94,794 | Burtonsville, MD / 9,233 |
| 32. | $93,174 | Columbia, MD / 98,379 |
| 33. | $93,167 | Jarrettsville, MD / 3,152 |
| 34. | $92,828 | Bel Air North, MD / 29,172 |
| 35. | $92,089 | Cape Saint Claire, MD / 8,670 |
| 36. | $91,750 | Townsend, DE / 1,426 |
| 37. | $91,378 | Severn, MD / 41,753 |
| 38. | $91,359 | Odenton, MD / 35,399 |
| 39. | $90,833 | Gardners, PA / 119 |
| 40. | $90,396 | Lake Shore, MD / 18,880 |
| 41. | $90,380 | Grantley, PA / 3,492 |
| 42. | $89,896 | Sykesville, MD / 4,454 |
| 43. | $89,766 | Landisville, PA / 1,914 |
| 44. | $88,571 | Mount Gretna, PA / 152 |
| 45. | $88,535 | Glasgow, DE / 15,648 |
| 46. | $88,035 | Pasadena, MD / 22,189 |
| 47. | $87,829 | Exton, PA / 4,578 |
| 48. | $87,068 | Savage, MD / 6,789 |
| 49. | $85,563 | Libertytown, MD / 745 |
| 50. | $83,259 | Skyline View, PA / 3,244 |
| 51. | $83,200 | Manchester, MD / 4,597 |
| 52. | $83,125 | New Morgan, PA / 17 |
| 53. | $83,119 | White Marsh, MD / 9,520 |
| 54. | $82,875 | Kingstown, MD / 1,811 |
| 55. | $82,841 | New Windsor, MD / 1,398 |
| 56. | $82,158 | Bel Air South, MD / 45,769 |
| 57. | $82,112 | Maryland City, MD / 15,420 |
| 58. | $82,054 | Herald Harbor, MD / 2,244 |
| 59. | $81,920 | Kingsville, MD / 4,690 |
| 60. | $79,645 | Riviera Beach, MD / 11,813 |
| 61. | $78,429 | Riverside, MD / 6,543 |
| 62. | $78,333 | Honey Brook, PA / 1,518 |
| 63. | $78,125 | Stonybrook, PA / 2,117 |
| 64. | $77,313 | Colony Park, PA / 1,061 |
| 65. | $77,219 | Lutherville, MD / 6,227 |
| 66. | $77,014 | Bird In Hand, PA / 306 |
| 67. | $76,791 | Linthicum, MD / 10,444 |
| 68. | $76,786 | Spring Ridge, PA / 1,053 |
| 69. | $76,779 | Campbelltown, PA / 3,596 |
| 70. | $76,111 | Elkridge, MD / 13,512 |
| 71. | $76,071 | Cross Roads, PA / 620 |
| 72. | $75,719 | Hampstead, MD / 6,203 |
| 73. | $75,162 | Perry Hall, MD / 28,368 |
| 74. | $74,922 | Brownstown CDP, PA / 2,118 |
| 75. | $74,750 | New Market, MD / 555 |
| 76. | $74,698 | Timonium, MD / 9,773 |
| 77. | $74,680 | Whitfield, PA / 4,873 |
| 78. | $74,446 | Joppatowne, MD / 12,662 |
| 79. | $74,247 | Boiling Springs, PA / 2,927 |
| 80. | $74,075 | Lake Meade, PA / 2,669 |
| 81. | $74,043 | Lionville, PA / 5,922 |
| 82. | $73,990 | Caln, PA / 1,123 |
| 83. | $73,750 | Kirkwood, PA / 333 |
| 84. | $73,309 | New Freedom, PA / 4,316 |
| 85. | $73,256 | Salunga, PA / 2,905 |
| 86. | $73,056 | Crownsville, MD / 1,926 |
| 87. | $72,949 | Towson, MD / 54,068 |
| 88. | $72,353 | New Kingstown, PA / 668 |
| 89. | $72,054 | Jacobus, PA / 1,789 |
| 90. | $71,534 | Randallstown, MD / 32,570 |
| 91. | $71,439 | Linglestown, PA / 6,857 |
| 92. | $71,250 | Hebron, PA / 1,333 |
| 93. | $71,058 | Hopeland, PA / 654 |
| 94. | $70,640 | Rothsville, PA / 3,125 |
| 95. | $70,179 | Rheems, PA / 1,313 |
| 95. | $70,179 | Atglen, PA / 1,296 |
| 97. | $70,104 | Montrose Manor, PA / 460 |
| 98. | $70,022 | Garrison, MD / 7,622 |
| 99. | $70,000 | Cochranville, PA / 735 |
| 100. | $69,856 | Pikesville, MD / 30,720 |
| 101. | $69,375 | Lewisberry, PA / 405 |
| 102. | $69,167 | Gibraltar, PA / 592 |
| 103. | $69,141 | East Earl, PA / 1,550 |
| 104. | $69,038 | Railroad, PA / 247 |
| 105. | $69,000 | Heidlersburg, PA / 812 |
| 106. | $68,892 | Brickerville, PA / 1,382 |
| 107. | $68,872 | Cornwall, PA / 4,015 |
| 108. | $67,986 | Swartzville, PA / 2,467 |
| 109. | $67,679 | Lampeter, PA / 1,541 |
| 109. | $67,679 | Catonsville, MD / 41,866 |
| 111. | $67,528 | Owings Mills, MD / 29,734 |
| 112. | $67,500 | Middletown, DE / 16,648 |
| 113. | $67,083 | Pomeroy, PA / 346 |
| 114. | $67,031 | Stewartstown, PA / 2,191 |
| 115. | $66,750 | Betterton, MD / 450 |
| 115. | $66,750 | Woodsboro, MD / 1,101 |
| 117. | $66,563 | Union Deposit, PA / 571 |
| 118. | $66,543 | Pike Creek Valley, DE / 11,400 |
| 119. | $66,390 | Ferndale, MD / 17,104 |
| 120. | $66,342 | Bowleys Quarters, MD / 6,607 |
| 121. | $66,288 | Galena, MD / 603 |
| 122. | $65,915 | Reamstown, PA / 3,624 |
| 123. | $65,869 | Taneytown, MD / 6,566 |
| 124. | $65,813 | Soudersburg, PA / 527 |
| 125. | $65,795 | Charlestown, MD / 1,119 |
| 126. | $65,669 | Susquehanna Trails, PA / 2,558 |
| 127. | $65,449 | Bel Air town, MD / 10,167 |
| 128. | $65,250 | Georgetown, MD / 254 |
| 129. | $65,104 | Wakefield, PA / 626 |
| 130. | $65,016 | Parkesburg, PA / 3,582 |
| 131. | $65,010 | Wyomissing, PA / 10,528 |
| 132. | $64,962 | Maytown, PA / 4,000 |
| 133. | $64,960 | Paxtonia, PA / 5,290 |
| 134. | $64,500 | Darlington, MD / 449 |
| 135. | $64,375 | Paradise, PA / 1,006 |
| 136. | $64,107 | Odessa, DE / 227 |
| 137. | $64,034 | Perryville, MD / 4,311 |
| 138. | $63,988 | West Grove, PA / 2,838 |
| 139. | $63,895 | Intercourse, PA / 969 |
| 140. | $63,807 | Fairlee, MD / 239 |
| 141. | $63,750 | Fawn Grove, PA / 518 |
| 142. | $63,271 | Laurel, MD / 24,433 |
| 143. | $63,006 | Shiloh, PA / 11,375 |
| 144. | $62,656 | Reinholds, PA / 2,162 |
| 145. | $62,604 | Falmouth, PA / 435 |
| 146. | $62,534 | Rosedale, MD / 19,044 |
| 147. | $62,050 | Valley View CDP, PA / 2,948 |
| 148. | $62,031 | Strasburg, PA / 2,818 |
| 149. | $62,014 | Havre De Grace, MD / 12,792 |
| 150. | $61,939 | Lawnton, PA / 3,743 |
| 151. | $61,916 | Lower Allen, PA / 6,910 |
| 152. | $61,786 | East Prospect, PA / 683 |
| 153. | $61,679 | Birdsboro, PA / 5,177 |
| 154. | $61,532 | Fort Indiantown Gap, PA / 120 |
| 155. | $61,389 | Thorndale, PA / 3,366 |
| 155. | $61,389 | New Salem borough, PA / 604 |
| 157. | $61,354 | Grill, PA / 1,384 |
| 158. | $61,086 | Woodlawn, MD / 37,978 |
| 159. | $61,023 | Washington Boro, PA / 722 |
| 160. | $61,000 | Hunterstown, PA / 779 |
| 161. | $60,970 | Bear, DE / 18,748 |
| 162. | $60,761 | Valley Green, PA / 3,216 |
| 163. | $60,500 | Carney, MD / 27,583 |
| 164. | $60,417 | Stouchsburg, PA / 586 |
| 165. | $60,206 | Rossville, MD / 15,072 |
| 166. | $60,194 | East York, PA / 9,212 |
| 167. | $60,083 | Camp Hill, PA / 7,829 |
| 168. | $60,063 | Perryman, MD / 2,343 |
| 169. | $60,042 | Loganville, PA / 1,161 |
| 170. | $60,000 | Goldsboro, PA / 879 |
| 171. | $59,983 | Arbutus, MD / 20,406 |
| 172. | $59,954 | Glen Rock, PA / 2,005 |
| 173. | $59,945 | Spry, PA / 4,907 |
| 174. | $59,875 | Penryn, PA / 1,225 |
| 175. | $59,706 | New Cumberland, PA / 7,289 |
| 176. | $59,583 | Shrewsbury, PA / 3,784 |
| 176. | $59,583 | Orrtanna, PA / 162 |
| 178. | $59,560 | Overlea, MD / 12,672 |
| 179. | $59,556 | Mount Gretna Heights, PA / 164 |
| 180. | $59,479 | Queens Gate, PA / 1,632 |
| 181. | $59,453 | Glen Burnie, MD / 65,523 |
| 182. | $59,280 | Denver, PA / 3,784 |
| 183. | $59,235 | Edgemere, MD / 9,053 |
| 184. | $59,083 | Avon, PA / 2,034 |
| 185. | $58,750 | Elverson, PA / 1,266 |
| 186. | $58,548 | Tolchester, MD / 457 |
| 187. | $58,532 | Fort Meade, MD / 10,910 |
| 188. | $58,512 | Fredericksburg CDP, PA / 1,272 |
| 189. | $58,325 | Hummelstown, PA / 4,502 |
| 190. | $58,226 | Rutherford, PA / 4,096 |
| 191. | $58,170 | Reisterstown, MD / 26,947 |
| 192. | $58,162 | Hershey, PA / 13,082 |
| 193. | $58,009 | Abbottstown, PA / 953 |
| 194. | $57,825 | Cashtown, PA / 919 |
| 195. | $57,727 | Clay, PA / 1,571 |
| 196. | $57,693 | New Castle, DE / 5,250 |
| 197. | $57,660 | Cleona, PA / 2,308 |
| 198. | $57,630 | Willow Street, PA / 7,354 |
| 199. | $57,578 | Sand Hill, PA / 2,073 |
| 200. | $57,500 | Kennett Square, PA / 5,959 |
| 201. | $57,369 | Edgewood, MD / 25,391 |
| 202. | $57,308 | Adamstown, PA / 1,504 |
| 203. | $57,188 | Milford Mill, MD / 28,767 |
| 204. | $57,100 | Conestoga, PA / 1,439 |
| 205. | $56,875 | Bainbridge, PA / 1,357 |
| 206. | $56,429 | Worton, MD / 136 |
| 206. | $56,429 | Rising Sun, MD / 2,651 |
| 208. | $56,422 | Sinking Spring, PA / 3,792 |
| 209. | $56,389 | Refton, PA / 209 |
| 210. | $56,364 | Paxtang, PA / 1,501 |
| 211. | $56,133 | Lebanon South, PA / 2,159 |
| 212. | $56,094 | Womelsdorf, PA / 2,796 |
| 213. | $56,051 | Leola, PA / 7,154 |
| 214. | $56,000 | Newmanstown, PA / 2,432 |
| 215. | $55,775 | Shillington, PA / 5,269 |
| 216. | $55,625 | Morgantown, PA / 887 |
| 217. | $55,563 | Goodville, PA / 257 |
| 218. | $55,322 | Cockeysville, MD / 19,842 |
| 219. | $55,109 | Midway, PA / 2,287 |
| 220. | $55,074 | East Petersburg, PA / 4,506 |
| 221. | $55,046 | Ronks, PA / 266 |
| 222. | $54,917 | Bowmansville, PA / 2,050 |
| 223. | $54,902 | Elkton, MD / 15,029 |
| 224. | $54,896 | Christiana, PA / 1,438 |
| 225. | $54,591 | North East, MD / 3,492 |
| 226. | $54,583 | Arendtsville, PA / 788 |
| 227. | $54,550 | Flying Hills, PA / 2,481 |
| 228. | $54,306 | Fivepointville, PA / 1,248 |
| 228. | $54,306 | Quentin, PA / 483 |
| 230. | $54,206 | Mount Joy, PA / 7,310 |
| 231. | $54,135 | Schoeneck, PA / 861 |
| 232. | $54,088 | Dillsburg, PA / 2,493 |
| 233. | $54,022 | Port Deposit, MD / 621 |
| 234. | $53,977 | Churchtown, PA / 411 |
| 235. | $53,915 | Spring Grove, PA / 2,303 |
| 236. | $53,872 | West Lawn, PA / 1,391 |
| 237. | $53,837 | Quarryville, PA / 2,476 |
| 238. | $53,750 | Jefferson borough, PA / 682 |
| 239. | $53,594 | Wormleysburg, PA / 2,988 |
| 240. | $53,552 | Lochearn, MD / 25,720 |
| 241. | $53,534 | Wilmington Manor, DE / 7,865 |
| 242. | $53,500 | Annville, PA / 4,729 |
| 243. | $53,470 | Brookside, DE / 14,365 |
| 244. | $53,274 | Springmont, PA / 490 |
| 245. | $53,250 | Yorkana, PA / 226 |
| 246. | $53,229 | Delaware City, DE / 1,723 |
| 247. | $53,203 | Avondale, PA / 1,426 |
| 248. | $53,125 | Emmitsburg, MD / 2,749 |
| 249. | $53,118 | Newark, DE / 31,110 |
| 250. | $53,051 | Manchester, PA / 2,710 |
| 251. | $53,043 | Windsor, PA / 1,666 |
| 252. | $53,000 | Seven Valleys, PA / 529 |
| 253. | $52,836 | Parkville, MD / 30,156 |
| 254. | $52,716 | Richland, PA / 1,584 |
| 255. | $52,481 | Kenhorst, PA / 2,844 |
| 256. | $52,386 | Robesonia, PA / 2,115 |
| 257. | $52,381 | Brooklyn Park, MD / 14,178 |
| 258. | $52,095 | Manheim, PA / 4,863 |
| 259. | $52,054 | Sudlersville, MD / 301 |
| 260. | $51,982 | Weigelstown, PA / 12,917 |
| 261. | $51,932 | New Holland, PA / 5,343 |
| 262. | $51,875 | Modena, PA / 466 |
| 263. | $51,618 | Akron, PA / 3,909 |
| 264. | $51,605 | Oberlin, PA / 595 |
| 265. | $51,578 | Hallam, PA / 2,492 |
| 266. | $51,573 | Middle River, MD / 23,799 |
| 267. | $51,483 | Dover, PA / 2,154 |
| 268. | $51,250 | Pennwyn, PA / 696 |
| 269. | $51,195 | Yorklyn, PA / 1,828 |
| 270. | $51,184 | Parkville, PA / 6,553 |
| 271. | $51,007 | Wernersville, PA / 2,187 |
| 272. | $50,893 | Toughkenamon, PA / 1,420 |
| 273. | $50,859 | Smoketown, PA / 377 |
| 274. | $50,795 | Millington, MD / 597 |
| 275. | $50,592 | Pennville, PA / 2,265 |
| 276. | $50,568 | Littlestown, PA / 4,428 |
| 277. | $50,212 | Middletown, PA / 8,970 |
| 278. | $50,089 | Lititz, PA / 9,298 |
| 279. | $50,062 | Downingtown, PA / 7,907 |
| 280. | $49,875 | Church Hill, MD / 551 |
| 281. | $49,789 | Mechanicsburg, PA / 8,981 |
| 282. | $49,608 | Oxford, PA / 4,971 |
| 283. | $49,448 | Essex, MD / 38,790 |
| 284. | $49,420 | Lincoln Park, PA / 1,400 |
| 285. | $49,196 | Felton, PA / 461 |
| 286. | $49,101 | Progress, PA / 9,568 |
| 287. | $49,018 | West York, PA / 4,586 |
| 288. | $48,958 | Schaefferstown, PA / 647 |
| 289. | $48,813 | Georgetown CDP, PA / 999 |
| 290. | $48,621 | Palmdale, PA / 2,071 |
| 291. | $48,582 | Blue Ball, PA / 786 |
| 292. | $48,555 | Mohnton, PA / 3,050 |
| 293. | $48,457 | West Wyomissing, PA / 3,941 |
| 294. | $48,433 | Colonial Park, PA / 13,114 |
| 295. | $48,413 | Wrightsville, PA / 2,302 |
| 296. | $48,399 | Elsmere, DE / 6,103 |
| 297. | $48,344 | Tyler Run, PA / 1,530 |
| 298. | $48,250 | Mountville, PA / 2,734 |
| 299. | $48,158 | Mount Aetna, PA / 416 |
| 300. | $48,135 | Elizabethtown, PA / 11,591 |
| 301. | $48,125 | Jonestown borough, PA / 1,273 |
| 302. | $48,117 | Westminster, MD / 18,591 |
| 303. | $48,047 | Aspers, PA / 330 |
| 304. | $47,868 | Aberdeen, MD / 14,920 |
| 305. | $47,863 | Lemoyne, PA / 4,467 |
| 306. | $47,837 | Gap, PA / 1,246 |
| 307. | $47,614 | Cecilton, MD / 433 |
| 308. | $47,212 | Jessup, MD / 11,078 |
| 309. | $47,009 | Mount Wolf, PA / 1,333 |
| 310. | $46,932 | East Berlin, PA / 1,657 |
| 311. | $46,881 | Palmyra, PA / 7,292 |
| 312. | $46,875 | Red Lion, PA / 6,384 |
| 313. | $46,869 | Baltimore Highlands, MD / 7,319 |
| 314. | $46,813 | Emigsville, PA / 2,490 |
| 315. | $46,753 | Dundalk, MD / 62,444 |
| 316. | $46,731 | Bendersville, PA / 477 |
| 317. | $46,477 | Winterstown, PA / 602 |
| 318. | $45,957 | Bonneauville, PA / 1,945 |
| 319. | $45,938 | Royalton, PA / 1,123 |
| 319. | $45,938 | Shiremanstown, PA / 1,504 |
| 321. | $45,867 | West Reading, PA / 4,210 |
| 322. | $45,065 | Ephrata, PA / 13,384 |
| 323. | $45,052 | West Chester, PA / 18,530 |
| 324. | $45,000 | Terre Hill, PA / 1,067 |
| 325. | $44,900 | Hanover, PA / 15,256 |
| 326. | $44,888 | Marysville, PA / 2,494 |
| 327. | $44,846 | Pleasant Hill, PA / 2,640 |
| 328. | $44,710 | Enola, PA / 6,584 |
| 329. | $44,694 | Bressler, PA / 1,454 |
| 330. | $44,211 | Chesapeake City, MD / 719 |
| 331. | $44,087 | Biglerville, PA / 1,050 |
| 332. | $43,862 | Dallastown, PA / 4,085 |
| 333. | $43,654 | Franklintown, PA / 423 |
| 334. | $43,500 | Union Bridge, MD / 836 |
| 335. | $43,333 | Wellsville, PA / 207 |
| 336. | $42,955 | Marietta, PA / 2,604 |
| 337. | $42,778 | York Springs, PA / 962 |
| 338. | $42,667 | Enhaut, PA / 903 |
| 339. | $42,419 | Aberdeen Proving Ground, MD / 3,558 |
| 340. | $42,147 | Mcsherrystown, PA / 3,010 |
| 341. | $41,944 | South Coatesville, PA / 1,359 |
| 342. | $41,797 | Delta, PA / 633 |
| 343. | $41,771 | Rock Hall, MD / 1,243 |
| 344. | $41,484 | Idaville, PA / 197 |
| 345. | $41,314 | Gettysburg, PA / 7,693 |
| 346. | $40,887 | Mount Holly Springs, PA / 1,958 |
| 347. | $40,529 | Millersville, PA / 8,077 |
| 348. | $40,274 | Lansdowne, MD / 8,629 |
| 349. | $40,100 | Highspire, PA / 2,712 |
| 350. | $39,755 | Westwood, PA / 584 |
| 351. | $39,609 | York Haven, PA / 699 |
| 352. | $39,567 | Myerstown, PA / 3,112 |
| 353. | $39,565 | New Oxford, PA / 1,757 |
| 354. | $39,386 | Baltimore, MD / 620,538 |
| 355. | $39,146 | West Fairview, PA / 1,126 |
| 356. | $37,583 | Newport, DE / 1,035 |
| 357. | $37,465 | North York, PA / 1,764 |
| 358. | $37,119 | Columbia, PA / 10,391 |
| 359. | $37,115 | Yoe, PA / 890 |
| 360. | $36,075 | Steelton, PA / 5,994 |
| 361. | $36,023 | Witmer, PA / 576 |
| 362. | $35,938 | Penbrook, PA / 3,013 |
| 363. | $35,741 | Chestertown, MD / 5,162 |
| 364. | $35,553 | Coatesville, PA / 12,774 |
| 365. | $34,340 | Mcknightstown, PA / 258 |
| 366. | $34,018 | Hampton, PA / 457 |
| 367. | $33,840 | Lebanon, PA / 25,412 |
| 368. | $33,021 | Gouglersville, PA / 254 |
| 369. | $32,737 | Lancaster, PA / 58,819 |
| 370. | $32,407 | Farmersville, PA / 1,654 |
| 371. | $31,961 | Butlertown, MD / 662 |
| 372. | $31,525 | Harrisburg, PA / 49,332 |
| 373. | $31,458 | Gordonville, PA / 698 |
| 374. | $29,657 | Kennedyville, MD / 158 |
| 375. | $28,583 | York, PA / 43,592 |
| 376. | $26,790 | Stevens, PA / 855 |
| 377. | $23,417 | New Market, PA / 840 |
| 378. | $19,286 | Table Rock, PA / 32 |
| 379. | $18,125 | Edesville, MD / 203 |
Please note that we only rank locations with 'Median Household Income' data. The rank above might not be a complete list. Locations without 'Median Household Income' 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.