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What is Area Code 203
Area code 203 is assigned to the state of Connecticut in the United States. It was one of the original 86 area codes created in 1947, and currently serves the southwestern part of the state, including the cities of Bridgeport, New Haven, and Stamford.
Top 3 Counties in Area Code 203
| County | Total Population | % of 203 | % of County |
|---|---|---|---|
| Fairfield, CT | 916,829 | 50% | 83% |
| New Haven, CT | 862,477 | 46% | 73% |
| Litchfield, CT | 189,927 | 4% | 6% |
Top 43 Cities in Area Code 203
| City | Total Population | % of 203 | % of City |
|---|---|---|---|
| Bridgeport, CT | 144,229 | 1% | 100% |
| New Haven, CT | 129,779 | 1% | 100% |
| Stamford, CT | 122,643 | 4% | 100% |
| Waterbury, CT | 110,366 | 2% | 100% |
| Norwalk, CT | 85,603 | 3% | 100% |
| Danbury, CT | 80,893 | 3% | 100% |
| Meriden, CT | 60,868 | 2% | 100% |
| West Haven, CT | 55,564 | 1% | 100% |
| Stratford, CT | 51,384 | 1% | 100% |
| Milford, CT | 51,271 | 2% | 100% |
| Shelton, CT | 39,559 | 2% | 100% |
| Trumbull, CT | 36,018 | 2% | 100% |
| Naugatuck, CT | 31,862 | 1% | 100% |
| East Haven, CT | 29,257 | 1% | 100% |
| Westport, CT | 26,391 | 2% | 100% |
| North Haven, CT | 24,093 | 2% | 100% |
| Darien, CT | 20,732 | 2% | 100% |
| Ansonia, CT | 19,249 | 0% | 100% |
| Wallingford Center, CT | 18,209 | 1% | 100% |
| Orange, CT | 13,956 | 1% | 100% |
| Greenwich, CT | 12,942 | 0% | 100% |
| Derby, CT | 12,902 | 0% | 100% |
| Bethel, CT | 9,549 | 0% | 100% |
| Riverside, CT | 8,416 | 0% | 100% |
| Ridgefield, CT | 7,645 | 0% | 100% |
| Cos Cob, CT | 6,770 | 0% | 100% |
| Old Greenwich, CT | 6,611 | 0% | 100% |
| Branford Center, CT | 5,819 | 0% | 100% |
| Cheshire Village, CT | 5,786 | 0% | 100% |
| Byram, CT | 4,146 | 0% | 91% |
| Heritage Village, CT | 3,736 | 0% | 100% |
| Pemberwick, CT | 3,680 | 0% | 100% |
| Guilford Center, CT | 2,597 | 0% | 100% |
| Glenville, CT | 2,327 | 0% | 100% |
| Madison Center, CT | 2,290 | 0% | 100% |
| Bethlehem Village, CT | 2,021 | 1% | 100% |
| Newtown, CT | 1,941 | 0% | 100% |
| Georgetown, CT | 1,805 | 0% | 100% |
| Southport, CT | 1,585 | 0% | 98% |
| Woodmont, CT | 1,488 | 0% | 100% |
| Woodbury Center, CT | 1,294 | 0% | 100% |
| Wilton Center, CT | 732 | 0% | 100% |
| Cannondale, CT | 141 | 0% | 100% |
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