| 1 | Storrs CDP (north) | 7,944 |
| 2 | Glastonbury Center CDP (southeast) | 7,847 |
| 3 | Unincorporated (northeast 9) | 7,470 |
| 4 | Unincorporated (north-northeast 6) | 7,048 |
| 5 | New Britain city (northwest) | 7,015 |
| 6 | North Granby CDP | 6,981 |
| 7 | Kensington CDP (west-southwest) | 6,881 |
| 8 | Unincorporated (south-southeast 2) | 6,749 |
| 9 | Hartford city (southeast 3) | 6,729 |
| 10 | Wethersfield CDP (south) | 6,683 |
| 11 | Unincorporated (northeast 4) | 6,507 |
| 12 | Rockville CDP (east-northeast 2) | 6,502 |
| 13 | Coventry Lake CDP | 6,419 |
| 14 | Crystal Lake CDP | 6,407 |
| 15 | Newington CDP (east-southeast) | 6,300 |
| 16 | Unincorporated (west 4) | 6,278 |
| 17 | Unincorporated (north-northwest 4) | 6,246 |
| 18 | West Hartford CDP (east) | 6,211 |
| 19 | Unincorporated (south-southwest 7) | 6,198 |
| 20 | Wethersfield CDP (northwest) | 6,121 |
| 21 | Terramuggus CDP | 6,106 |
| 22 | Weatogue CDP (north) | 5,939 |
| 23 | Unincorporated (west-northwest 2) | 5,932 |
| 24 | Unincorporated (southwest 9) | 5,883 |
| 25 | Unincorporated (east-northeast 5) | 5,848 |
| 26 | Unincorporated (northeast 8) | 5,813 |
| 27 | East Hartford CDP (west-northwest) | 5,794 |
| 28 | Broad Brook CDP | 5,758 |
| 29 | Manchester CDP (south-southwest) | 5,683 |
| 30 | Unincorporated (east-southeast 2) | 5,676 |
| 31 | Unincorporated (east-northeast 2) | 5,582 |
| 32 | Unincorporated (northeast 1) | 5,563 |
| 33 | Unincorporated (south-southeast 1) | 5,554 |
| 34 | New Britain city (east-southeast 2) | 5,536 |
| 35 | Unincorporated (west 2) | 5,534 |
| 36 | Unincorporated (north 2) | 5,526 |
| 37 | Hartford city (south-southeast 3) | 5,476 |
| 38 | Canton Valley CDP | 5,437 |
| 39 | Unincorporated (south-southwest 4) | 5,422 |
| 40 | Unincorporated (north 5) | 5,399 |
| 41 | Weatogue CDP (south) | 5,390 |
| 42 | Storrs CDP (southeast) | 5,284 |
| 43 | Unincorporated (east 1) | 5,268 |
| 44 | Unincorporated (west-southwest 1) | 5,259 |
| 45 | Unincorporated (northwest 3) | 5,214 |
| 46 | Unincorporated (southwest 1) | 5,207 |
| 47 | Hartford city (west) | 5,196 |
| 48 | Windsor Locks CDP (south) | 5,153 |
| 49 | Plantsville CDP (south-southwest) | 5,148 |
| 50 | Manchester CDP (southwest) | 5,119 |
| 51 | Manchester CDP (south 2) | 5,117 |
| 52 | West Hartford CDP (north) | 5,069 |
| 53 | Somers CDP (west-southwest) | 5,055 |
| 54 | Sherwood Manor CDP (east-northeast) | 5,037 |
| 55 | Rockville CDP (west-southwest) | 5,022 |
| 56 | Unincorporated (east 4) | 5,021 |
| 57 | Stafford Springs CDP (west) | 4,996 |
| 58 | Manchester CDP (west-northwest 2) | 4,979 |
| 59 | West Hartford CDP (south 1) | 4,969 |
| 60 | East Hartford CDP (southwest) | 4,936 |
| 61 | Unincorporated (west-northwest 1) | 4,933 |
| 62 | Unincorporated (north-northwest 7) | 4,923 |
| 63 | Hartford city (south-southeast 4) | 4,860 |
| 64 | Unincorporated (east-northeast 3) | 4,848 |
| 65 | Windsor Locks CDP (east-northeast) | 4,816 |
| 66 | Storrs CDP (west-northwest) | 4,811 |
| 67 | Unincorporated (southwest 7) | 4,811 |
| 68 | Newington CDP (north) | 4,727 |
| 69 | Simsbury Center CDP | 4,692 |
| 70 | Unincorporated (northeast 2) | 4,683 |
| 71 | New Britain city (west 1) | 4,679 |
| 72 | Unincorporated (east-southeast 1) | 4,673 |
| 73 | Collinsville CDP | 4,671 |
| 74 | Manchester CDP (west-northwest 1) | 4,666 |
| 75 | Newington CDP (south) | 4,659 |
| 76 | New Britain city (west 2) | 4,621 |
| 77 | New Britain city (north 1) | 4,618 |
| 78 | Unincorporated (south-southwest 8) | 4,582 |
| 79 | Newington CDP (north-northeast) | 4,575 |
| 80 | New Britain city (north-northwest) | 4,566 |
| 81 | Hartford city (north-northwest 1) | 4,551 |
| 82 | East Hartford CDP (south) | 4,503 |
| 83 | Unincorporated (northeast 7) | 4,499 |
| 84 | Unincorporated (southeast) | 4,492 |
| 85 | Unincorporated (north-northeast 2) | 4,480 |
| 86 | Unincorporated (northeast 6) | 4,475 |
| 87 | Manchester CDP (west-southwest) | 4,420 |
| 88 | Mansfield Center CDP | 4,415 |
| 89 | Unincorporated (south 1) | 4,405 |
| 90 | Hartford city (south-southwest 2) | 4,391 |
| 91 | Unincorporated (east-southeast 3) | 4,350 |
| 92 | Unincorporated (west 3) | 4,345 |
| 93 | West Hartford CDP (west-northwest) | 4,343 |
| 94 | Hartford city (south 2) | 4,340 |
| 95 | Manchester CDP (north-northeast 2) | 4,340 |
| 96 | Glastonbury Center CDP (northwest) | 4,335 |
| 97 | West Hartford CDP (north-northeast 1) | 4,330 |
| 98 | Kensington CDP (southeast) | 4,298 |
| 99 | Suffield Depot CDP (west-northwest) | 4,293 |
| 100 | New Britain city (south-southeast 1) | 4,220 |
| 101 | Hazardville CDP (west-southwest) | 4,214 |
| 102 | Wethersfield CDP (northeast) | 4,202 |
| 103 | Suffield Depot CDP (northeast) | 4,170 |
| 104 | New Britain city (east-northeast) | 4,161 |
| 105 | Plantsville CDP (northeast) | 4,148 |
| 106 | Thompsonville CDP (west-northwest) | 4,140 |
| 107 | East Hartford CDP (northwest 2) | 4,119 |
| 108 | West Hartford CDP (northeast) | 4,097 |
| 109 | Unincorporated (east-southeast 4) | 4,088 |
| 110 | Unincorporated (northwest 2) | 4,075 |
| 111 | Suffield Depot CDP (south-southeast) | 4,060 |
| 112 | West Hartford CDP (north-northwest) | 4,043 |
| 113 | Salmon Brook CDP | 4,039 |
| 114 | Newington CDP (west-southwest) | 4,031 |
| 115 | Somers CDP (east-northeast) | 4,031 |
| 116 | Unincorporated (south-southwest 9) | 4,018 |
| 117 | Unincorporated (south 2) | 4,016 |
| 118 | West Hartford CDP (northwest) | 4,014 |
| 119 | Unincorporated (northeast 5) | 4,004 |
| 120 | East Hartford CDP (north-northeast) | 3,990 |
| 121 | West Simsbury CDP | 3,962 |
| 122 | Unincorporated (south-southwest 6) | 3,956 |
| 123 | Unincorporated (west-southwest 3) | 3,915 |
| 124 | New Britain city (north 2) | 3,849 |
| 125 | Southwood Acres CDP (west) | 3,844 |
| 126 | Hartford city (south-southwest 3) | 3,832 |
| 127 | West Hartford CDP (east-southeast) | 3,795 |
| 128 | East Hartford CDP (southeast) | 3,785 |
| 129 | Unincorporated (west-southwest 2) | 3,782 |
| 130 | Unincorporated (east 2) | 3,763 |
| 131 | Sherwood Manor CDP (south-southwest) | 3,719 |
| 132 | Stafford Springs CDP (south) | 3,719 |
| 133 | Southwood Acres CDP (north-northeast) | 3,704 |
| 134 | Unincorporated (north-northeast 4) | 3,660 |
| 135 | Hartford city (south 1) | 3,654 |
| 136 | Hartford city (north 3) | 3,651 |
| 137 | West Hartford CDP (south-southeast) | 3,651 |
| 138 | Wethersfield CDP (east-northeast) | 3,651 |
| 139 | Hartford city (south-southeast 2) | 3,637 |
| 140 | East Hartford CDP (east 2) | 3,593 |
| 141 | East Hartford CDP (east-southeast) | 3,593 |
| 142 | East Hartford CDP (northeast) | 3,582 |
| 143 | Hartford city (west-southwest 2) | 3,574 |
| 144 | Wethersfield CDP (southwest) | 3,573 |
| 145 | Unincorporated (south-southwest 3) | 3,567 |
| 146 | Hartford city (north-northwest 4) | 3,547 |
| 147 | Manchester CDP (north) | 3,517 |
| 148 | Unincorporated (east-northeast 4) | 3,475 |
| 149 | Unincorporated (southwest 3) | 3,440 |
| 150 | Newington CDP (northwest) | 3,415 |
| 151 | Blue Hills CDP (east-northeast) | 3,414 |
| 152 | Manchester CDP (southeast) | 3,401 |
| 153 | Unincorporated (north-northwest 6) | 3,395 |
| 154 | West Hartford CDP (southeast 2) | 3,395 |
| 155 | Hartford city (north-northwest 2) | 3,390 |
| 156 | Unincorporated (northeast 3) | 3,383 |
| 157 | East Hartford CDP (south-southwest) | 3,382 |
| 158 | Unincorporated (southwest 8) | 3,379 |
| 159 | Unincorporated (south-southwest 1) | 3,366 |
| 160 | New Britain city (southwest 2) | 3,346 |
| 161 | Unincorporated (southwest 2) | 3,305 |
| 162 | Manchester CDP (east-southeast) | 3,286 |
| 163 | Unincorporated (north 4) | 3,281 |
| 164 | New Britain city (south) | 3,277 |
| 165 | Manchester CDP (northwest) | 3,251 |
| 166 | Blue Hills CDP (west-southwest) | 3,193 |
| 167 | Manchester CDP (north-northeast 1) | 3,148 |
| 168 | Unincorporated (east 3) | 3,148 |
| 169 | Thompsonville CDP (north) | 3,138 |
| 170 | New Britain city (north 3) | 3,130 |
| 171 | Hartford city (north-northwest 5) | 3,115 |
| 172 | Hartford city (east-northeast) | 3,113 |
| 173 | Unincorporated (north-northwest 5) | 3,113 |
| 174 | Unincorporated (southwest 6) | 3,111 |
| 175 | East Hartford CDP (east 1) | 3,059 |
| 176 | Unincorporated (southwest 5) | 3,035 |
| 177 | Hartford city (south-southeast 1) | 3,027 |
| 178 | Manchester CDP (east) | 3,020 |
| 179 | Manchester CDP (northeast) | 2,990 |
| 180 | Hartford city (southeast 6) | 2,978 |
| 181 | West Hartford CDP (south 2) | 2,973 |
| 182 | Hartford city (southeast 2) | 2,964 |
| 183 | New Britain city (west-southwest) | 2,961 |
| 184 | Wethersfield CDP (west) | 2,950 |
| 185 | New Britain city (south-southwest) | 2,903 |
| 186 | Southwood Acres CDP (south) | 2,891 |
| 187 | West Hartford CDP (southwest) | 2,879 |
| 188 | New Britain city (southeast) | 2,878 |
| 189 | Newington CDP (southeast) | 2,844 |
| 190 | Kensington CDP (east-northeast) | 2,833 |
| 191 | New Britain city (northeast) | 2,786 |
| 192 | Stafford Springs CDP (east-northeast) | 2,747 |
| 193 | Unincorporated (north-northeast 3) | 2,744 |
| 194 | West Hartford CDP (south-southwest) | 2,740 |
| 195 | Unincorporated (west 1) | 2,699 |
| 196 | West Hartford CDP (southeast 1) | 2,651 |
| 197 | Hartford city (north 4) | 2,640 |
| 198 | Hartford city (northwest 3) | 2,640 |
| 199 | Hartford city (south-southwest 1) | 2,634 |
| 200 | Unincorporated (east-northeast 1) | 2,634 |
| 201 | Hartford city (northwest 1) | 2,631 |
| 202 | Windsor Locks CDP (north-northeast) | 2,586 |
| 203 | Unincorporated (south-southwest 2) | 2,578 |
| 204 | Hazardville CDP (east-northeast) | 2,564 |
| 205 | Hartford city (north 1) | 2,541 |
| 206 | Manchester CDP (south 1) | 2,536 |
| 207 | Unincorporated (northwest 1) | 2,502 |
| 208 | Hartford city (northwest 2) | 2,497 |
| 209 | Unincorporated (north-northwest 1) | 2,409 |
| 210 | New Britain city (east-southeast 1) | 2,399 |
| 211 | East Hartford CDP (north) | 2,385 |
| 212 | Unincorporated (southwest 4) | 2,331 |
| 213 | West Hartford CDP (north-northeast 2) | 2,330 |
| 214 | West Hartford CDP (west) | 2,319 |
| 215 | Tariffville CDP | 2,262 |
| 216 | Rockville CDP (east-northeast 1) | 2,233 |
| 217 | Hartford city (west-northwest 2) | 2,197 |
| 218 | Hartford city (west-northwest 1) | 2,187 |
| 219 | Hartford city (southwest 1) | 2,173 |
| 220 | Thompsonville CDP (south-southeast) | 2,142 |
| 221 | Hartford city (north-northwest 6) | 2,141 |
| 222 | East Hartford CDP (west) | 2,115 |
| 223 | Sherwood Manor CDP (west-northwest) | 2,047 |
| 224 | Hartford city (southeast 5) | 1,993 |
| 225 | Hartford city (north-northeast 2) | 1,973 |
| 226 | East Hartford CDP (northwest 1) | 1,962 |
| 227 | Unincorporated (south-southwest 5) | 1,931 |
| 228 | Hartford city (southeast 1) | 1,850 |
| 229 | Hartford city (north-northeast 3) | 1,849 |
| 230 | Unincorporated (north 1) | 1,840 |
| 231 | Hartford city (north 2) | 1,807 |
| 232 | Unincorporated (north 3) | 1,747 |
| 233 | New Britain city (south-southeast 2) | 1,728 |
| 234 | Hartford city (east-southeast 1) | 1,663 |
| 235 | New Britain city (north-northeast 2) | 1,642 |
| 236 | Hartford city (southeast 4) | 1,631 |
| 237 | Plantsville CDP (north-northwest) | 1,554 |
| 238 | Hartford city (west-southwest 1) | 1,551 |
| 239 | Hartford city (north-northwest 3) | 1,546 |
| 240 | Hartford city (southwest 2) | 1,541 |
| 241 | New Britain city (north-northeast 1) | 1,511 |
| 242 | Unincorporated (north-northeast 5) | 1,492 |
| 243 | New Britain city (southwest 1) | 1,475 |
| 244 | Hartford city (east-southeast 2) | 1,320 |
| 245 | Unincorporated (north-northeast 1) | 1,078 |
| 246 | Hartford city (north-northeast 1) | 940 |