| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.46 | Central Falls School District / 19,376 |
| 2. | 3.35 | Providence School District / 178,042 |
| 3. | 3.13 | Barrington School District / 16,310 |
| 4. | 3.10 | East Greenwich School District / 13,146 |
| 5. | 3.08 | Pawtucket School District / 71,148 |
| 6. | 3.06 | Exeter-West Greenwich Regional School District / 12,560 |
| 7. | 3.05 | Foster Elementary School District / 4,606 |
| 7. | 3.05 | Cranston School District / 80,387 |
| 9. | 3.04 | Foster-Glocester Regional School District / 14,352 |
| 9. | 3.04 | Cumberland School District / 33,506 |
| 11. | 3.03 | Lincoln School District / 21,105 |
| 11. | 3.03 | Coventry School District / 35,014 |
| 11. | 3.03 | Glocester Elementary School District / 9,746 |
| 14. | 3.02 | Woonsocket School District / 41,186 |
| 14. | 3.02 | North Kingstown School District / 26,486 |
| 14. | 3.02 | Burrillville School District / 15,955 |
| 14. | 3.02 | Scituate School District / 10,329 |
| 18. | 3.01 | Johnston School District / 28,769 |
| 19. | 2.99 | Chariho Regional School District / 23,723 |
| 19. | 2.99 | North Smithfield School District / 11,967 |
| 21. | 2.98 | Middletown School District / 16,150 |
| 21. | 2.98 | Smithfield School District / 21,430 |
| 23. | 2.97 | South Kingstown School District / 30,639 |
| 24. | 2.95 | Portsmouth School District / 17,389 |
| 24. | 2.95 | Warwick School District / 82,672 |
| 26. | 2.94 | East Providence School District / 47,037 |
| 27. | 2.91 | North Providence School District / 32,078 |
| 27. | 2.91 | Bristol-Warren Regional School District / 33,565 |
| 27. | 2.91 | West Warwick School District / 29,191 |
| 30. | 2.90 | Westerly School District / 22,787 |
| 31. | 2.84 | Tiverton School District / 15,780 |
| 32. | 2.82 | Little Compton School District / 3,492 |
| 32. | 2.82 | Newport School District / 24,672 |
| 34. | 2.81 | Jamestown School District / 5,405 |
| 35. | 2.78 | Narragansett School District / 15,868 |
| 36. | 2.59 | New Shoreham School District / 1,051 |
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.
