| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.77 | Central Falls School District / 19,406 |
| 2. | 3.58 | Providence School District / 178,562 |
| 3. | 3.35 | Pawtucket School District / 71,313 |
| 4. | 3.28 | Foster Elementary School District / 4,642 |
| 5. | 3.26 | Woonsocket School District / 41,136 |
| 6. | 3.24 | Lincoln School District / 21,300 |
| 7. | 3.24 | East Greenwich School District / 13,118 |
| 8. | 3.22 | Foster-Glocester Regional School District / 14,486 |
| 9. | 3.22 | Exeter-West Greenwich Regional School District / 12,791 |
| 10. | 3.20 | Cranston School District / 80,680 |
| 11. | 3.20 | Johnston School District / 28,987 |
| 12. | 3.20 | North Smithfield School District / 12,106 |
| 13. | 3.19 | Glocester Elementary School District / 9,844 |
| 14. | 3.18 | Smithfield School District / 21,478 |
| 15. | 3.18 | Barrington School District / 16,290 |
| 16. | 3.16 | Scituate School District / 10,414 |
| 17. | 3.15 | Coventry School District / 34,992 |
| 18. | 3.12 | Name N/A / 36,212 |
| 19. | 3.09 | Cumberland School District / 33,930 |
| 20. | 3.09 | East Providence School District / 47,166 |
| 21. | 3.09 | West Warwick School District / 28,960 |
| 22. | 3.08 | Burrillville School District / 16,108 |
| 23. | 3.07 | North Kingstown School District / 26,404 |
| 24. | 3.06 | Middletown School District / 16,081 |
| 25. | 3.02 | Warwick School District / 82,065 |
| 26. | 3.01 | North Providence School District / 32,208 |
| 27. | 3.00 | South Kingstown School District / 30,546 |
| 28. | 3.00 | Chariho Regional School District / 23,580 |
| 29. | 2.99 | Portsmouth School District / 17,352 |
| 30. | 2.97 | Newport School District / 24,599 |
| 31. | 2.93 | Little Compton School District / 3,491 |
| 32. | 2.92 | Bristol-Warren Regional School District / 33,048 |
| 33. | 2.90 | Westerly School District / 22,727 |
| 34. | 2.89 | Tiverton School District / 15,805 |
| 35. | 2.88 | Narragansett School District / 15,786 |
| 36. | 2.79 | Jamestown School District / 5,444 |
| 37. | 2.60 | New Shoreham School District / 893 |
Please note that we only rank locations with 'Average Family Size' data. The rank above might not be a complete list. Locations without 'Average Family Size' data are not listed.
