Ranking of Connecticut Cities and Places By Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of Connecticut (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 656,949. Among all Connecticut cities and places, Bridgeport city had the highest population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (31,221), followed by Waterbury city (27,807), and Hartford city (25,678).
The chart below shows the top 10 Connecticut cities and places, and the table below shows the ranking of all Connecticut cities and places.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: Connecticut ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Connecticut Cities and Places By Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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| Rank | City or Place | Number of People |
|---|---|---|
| 1 | Bridgeport city | 31221 |
| 2 | Waterbury city | 27807 |
| 3 | Hartford city | 25678 |
| 4 | New Haven city | 25325 |
| 5 | Stamford city | 18198 |
| 6 | New Britain city | 16654 |
| 7 | Danbury city | 15788 |
| 8 | Meriden city | 15211 |
| 9 | Norwalk city | 14351 |
| 10 | Bristol city | 13956 |
| 11 | East Hartford CDP | 13041 |
| 12 | West Haven city | 12875 |
| 13 | Norwich city | 10911 |
| 14 | Torrington city | 10207 |
| 15 | East Haven CDP | 9453 |
| 16 | Middletown city | 9392 |
| 17 | Milford city (balance) | 9019 |
| 18 | Manchester CDP | 8217 |
| 19 | Shelton city | 8160 |
| 20 | Naugatuck borough | 6627 |
| 21 | West Hartford CDP | 5605 |
| 22 | Newington CDP | 5506 |
| 23 | Ansonia city | 5490 |
| 24 | New London city | 5250 |
| 25 | North Haven CDP | 5021 |
| 26 | Wallingford Center CDP | 4764 |
| 27 | Wethersfield CDP | 4707 |
| 28 | Willimantic CDP | 3572 |
| 29 | Derby city | 3497 |
| 30 | Windsor Locks CDP | 3344 |
| 31 | Oakville CDP | 2449 |
| 32 | Thompsonville CDP | 2225 |
| 33 | Bethel CDP | 2069 |
| 34 | Rockville CDP | 2043 |
| 35 | Putnam CDP | 1906 |
| 36 | Kensington CDP | 1886 |
| 37 | Winsted CDP | 1883 |
| 38 | Groton city | 1874 |
| 39 | Terryville CDP | 1704 |
| 40 | New Milford CDP | 1666 |
| 41 | Orange CDP | 1662 |
| 42 | Southwood Acres CDP | 1621 |
| 43 | Trumbull Center CDP | 1572 |
| 44 | Sherwood Manor CDP | 1445 |
| 45 | Branford Center CDP | 1397 |
| 46 | Hazardville CDP | 1387 |
| 47 | Stafford Springs CDP | 1369 |
| 48 | Greenwich CDP | 1366 |
| 49 | Northford CDP | 1352 |
| 50 | Conning Towers-Nautilus Park CDP | 1302 |
| 50 | Long Hill CDP (Fairfield County) | 1302 |
| 51 | Pawcatuck CDP | 1252 |
| 52 | Moosup CDP | 1223 |
| 53 | Sandy Hook CDP | 1215 |
| 54 | Danielson borough | 997 |
| 55 | Long Hill CDP (New London County) | 985 |
| 56 | Colchester CDP | 973 |
| 57 | Heritage Village CDP | 917 |
| 58 | Portland CDP | 909 |
| 59 | Waterford CDP | 902 |
| 60 | Glastonbury Center CDP | 893 |
| 61 | Clinton CDP | 853 |
| 62 | Cos Cob CDP | 852 |
| 63 | Lake Pocotopaug CDP | 851 |
| 64 | Cheshire Village CDP | 844 |
| 65 | Jewett City borough | 815 |
| 66 | Durham CDP | 799 |
| 67 | Oxoboxo River CDP | 777 |
| 68 | Blue Hills CDP | 773 |
| 69 | Byram CDP | 757 |
| 70 | Pemberwick CDP | 690 |
| 71 | Watertown CDP | 667 |
| 72 | Lordship CDP | 657 |
| 73 | East Brooklyn CDP | 644 |
| 74 | Thomaston CDP | 614 |
| 75 | Northwest Harwinton CDP | 613 |
| 76 | Stepney CDP | 612 |
| 77 | Oronoque CDP | 608 |
| 78 | Deep River Center CDP | 591 |
| 79 | Broad Brook CDP | 571 |
| 80 | Crystal Lake CDP | 549 |
| 81 | Mystic CDP | 547 |
| 82 | Plainfield Village CDP | 526 |
| 83 | East Village CDP | 517 |
| 84 | Old Mystic CDP | 502 |
| 85 | Westbrook Center CDP | 482 |
| 86 | Staples CDP | 475 |
| 87 | Quinebaug CDP | 458 |
| 88 | Niantic CDP | 454 |
| 89 | Salmon Brook CDP | 446 |
| 90 | Guilford Center CDP | 434 |
| 91 | East Hampton CDP | 430 |
| 92 | Daniels Farm CDP | 417 |
| 93 | Coventry Lake CDP | 416 |
| 94 | Stratford Downtown CDP | 411 |
| 95 | Bethlehem Village CDP | 401 |
| 96 | Ridgefield CDP | 396 |
| 97 | Baltic CDP | 387 |
| 97 | Simsbury Center CDP | 387 |
| 98 | Plantsville CDP | 385 |
| 99 | Wauregan CDP | 377 |
| 100 | South Coventry CDP | 363 |
| 101 | Inglenook CDP | 349 |
| 102 | Old Saybrook Center CDP | 343 |
| 103 | South Windham CDP | 340 |
| 104 | New Canaan CDP | 338 |
| 105 | Tariffville CDP | 337 |
| 106 | Tashua CDP | 327 |
| 107 | Ball Pond CDP | 322 |
| 107 | Somers CDP | 322 |
| 108 | Madison Center CDP | 319 |
| 108 | Riverside CDP | 319 |
| 109 | West Simsbury CDP | 312 |
| 110 | Canton Valley CDP | 298 |
| 111 | Canaan CDP | 290 |
| 112 | Chester Center CDP | 285 |
| 112 | Old Greenwich CDP | 285 |
| 113 | Saybrook Manor CDP | 284 |
| 114 | Moodus CDP | 277 |
| 115 | Compo CDP | 274 |
| 116 | North Grosvenor Dale CDP | 268 |
| 117 | Poquonock Bridge CDP | 267 |
| 118 | Gaylordsville CDP | 265 |
| 119 | Mechanicsville CDP | 262 |
| 120 | Brooklyn CDP | 248 |
| 121 | Collinsville CDP | 246 |
| 122 | Suffield Depot CDP | 237 |
| 123 | Saugatuck CDP | 233 |
| 124 | Georgetown CDP | 228 |
| 125 | Essex Village CDP | 220 |
| 125 | Noroton CDP | 220 |
| 126 | Wilton Center CDP | 205 |
| 127 | Bantam borough | 196 |
| 128 | New Preston CDP | 190 |
| 129 | Storrs CDP | 186 |
| 129 | Woodmont borough | 186 |
| 130 | North Granby CDP | 178 |
| 131 | Higganum CDP | 175 |
| 132 | Gales Ferry CDP | 174 |
| 133 | Glenville CDP | 172 |
| 134 | South Woodstock CDP | 156 |
| 135 | Bigelow Corners CDP | 154 |
| 136 | Greens Farms CDP | 153 |
| 137 | Newtown borough | 149 |
| 138 | Coleytown CDP | 142 |
| 138 | Weatogue CDP | 142 |
| 139 | Lake Bungee CDP | 140 |
| 140 | Litchfield borough | 139 |
| 141 | Riverton CDP | 135 |
| 142 | Old Hill CDP | 134 |
| 143 | New Hartford Center CDP | 129 |
| 144 | Taylor Corners CDP | 119 |
| 145 | Botsford CDP | 118 |
| 146 | Lakes East CDP | 114 |
| 146 | South Wilton CDP | 114 |
| 147 | Dayville CDP | 113 |
| 148 | Noank CDP | 111 |
| 149 | Southport CDP | 110 |
| 150 | Candlewood Shores CDP | 105 |
| 150 | Woodbury Center CDP | 105 |
| 151 | Norfolk CDP | 102 |
| 152 | Lakeville CDP | 101 |
| 153 | Ridgebury CDP | 99 |
| 154 | Noroton Heights CDP | 92 |
| 155 | Route 7 Gateway CDP | 90 |
| 156 | Mamanasco Lake CDP | 81 |
| 157 | Mansfield Center CDP | 79 |
| 158 | Lake Chaffee CDP | 75 |
| 159 | Lakes West CDP | 69 |
| 160 | Darien Downtown CDP | 68 |
| 160 | Westport Village CDP | 68 |
| 161 | Terramuggus CDP | 65 |
| 162 | Plattsville CDP | 61 |
| 163 | Falls Village CDP | 60 |
| 164 | Stonington borough | 58 |
| 165 | Mill Plain CDP | 50 |
| 166 | Candlewood Orchards CDP | 49 |
| 166 | Sacred Heart University CDP | 49 |
| 167 | Cannondale CDP | 48 |
| 168 | Cornwall Bridge CDP | 45 |
| 169 | West Mountain CDP | 39 |
| 170 | Quasset Lake CDP | 35 |
| 171 | Bridgewater CDP | 31 |
| 171 | Rock Ridge CDP | 31 |
| 172 | Dodgingtown CDP | 30 |
| 173 | Brookfield Center CDP | 29 |
| 173 | Indian Field CDP | 29 |
| 174 | Knollcrest CDP | 28 |
| 175 | Murray CDP | 27 |
| 176 | Branchville CDP | 26 |
| 176 | Pleasant Valley CDP | 26 |
| 177 | Groton Long Point borough | 25 |
| 178 | Mashantucket CDP | 24 |
| 179 | Candlewood Isle CDP | 23 |
| 180 | Topstone CDP | 21 |
| 181 | Redding Center CDP | 20 |
| 182 | Tokeneke CDP | 19 |
| 182 | Witches Woods CDP | 19 |
| 183 | Lakeside Woods CDP | 16 |
| 184 | Candlewood Knolls CDP | 14 |
| 185 | Sail Harbor CDP | 12 |
| 185 | Sharon CDP | 12 |
| 186 | Hawleyville CDP | 11 |
| 187 | Weston CDP | 9 |
| 188 | Fairfield University CDP | 5 |
| 189 | Fenwick borough | 3 |
| 190 | West Cornwall CDP | 2 |
| 191 | Bogus Hill CDP | 0 |
| 191 | Candlewood Lake Club CDP | 0 |
| 191 | Chimney Point CDP | 0 |
| 191 | Cornwall CDP | 0 |
| 191 | Kellogg Point CDP | 0 |
| 191 | Poplar Plains CDP | 0 |
| 191 | Quinnipiac University CDP | 0 |
| 191 | Sherman CDP | 0 |