203 Area Code

Area code 203 is a North American telephone area code that is allotted to the southwestern portion of Connecticut and is covered with area code 475. The numbering plan area (NPA) 203 basically covered the whole state of Connecticut when the North American Numbering Plan was founded in 1947. Today the numbering plan area stretches from Connecticut’s western border, along its southern coast, to Madison, and north to Meriden. The area surrounded by 203 and 475 is mostly coextensive with the Connecticut side of the New York city area. 

203 Area Code
203 Area Code


Larger cities in area code 203

Time Zone

Ansonia, Bethel, Branford, Bridgeport, Brookfield, Cheshire, Danbury, Darien, Derby, East Haven, Easton, Fairfield, Greenwich, Guilford, Hamden, Madison, Meriden, Middlebury, Milford, Monroe, Naugatuck, New Canaan, New Fairfield, New Haven, Newtown, North Haven, Norwalk, Orange, Oxford, Prospect, Redding, Ridgefield, Seymour, Shelton, Southbury, Stamford, Stratford, Trumbull, Wallingford, Waterbury, West Haven, Weston, Westport, Wilton, Wolcott, Woodbridge, Woodbury
All cities
Current time is 06:34:06 AM


Area Code 203 Demographic Information


White Population:1,314,773
Black Population:181,040
Hispanic Population:186,838
Asian Population:46,897
Hawaiian Population:648
Indian Population:3,766
Other Population:78,365
Male Population:802,460
Female Population:862,358
Avg House Value:$253,285.05
Avg Household Income:$67,484.27
Avg Persons Per Household:2.61
Median Age:37.62
Median Age (Male):36.6
Median Age (Female):38.61


Top 3 Counties in Area Code 203

CountyTotal Population% of 203% of County
Fairfield, CT916,82950%83%
New Haven, CT862,47746%73%
Litchfield, CT189,9274%6%

Top 43 Cities in Area Code 203

CityTotal Population% of 203% of City
Bridgeport, CT144,2291%100%
New Haven, CT129,7791%100%
Stamford, CT122,6434%100%
Waterbury, CT110,3662%100%
Norwalk, CT85,6033%100%
Danbury, CT80,8933%100%
Meriden, CT60,8682%100%
West Haven, CT55,5641%100%
Stratford, CT51,3841%100%
Milford, CT51,2712%100%
Shelton, CT39,5592%100%
Trumbull, CT36,0182%100%
Naugatuck, CT31,8621%100%
East Haven, CT29,2571%100%
Westport, CT26,3912%100%
North Haven, CT24,0932%100%
Darien, CT20,7322%100%
Ansonia, CT19,2490%100%
Wallingford Center, CT18,2091%100%
Orange, CT13,9561%100%
Greenwich, CT12,9420%100%
Derby, CT12,9020%100%
Bethel, CT9,5490%100%
Riverside, CT8,4160%100%
Ridgefield, CT7,6450%100%
Cos Cob, CT6,7700%100%
Old Greenwich, CT6,6110%100%
Branford Center, CT5,8190%100%
Cheshire Village, CT5,7860%100%
Byram, CT4,1460%91%
Heritage Village, CT3,7360%100%
Pemberwick, CT3,6800%100%
Guilford Center, CT2,5970%100%
Glenville, CT2,3270%100%
Madison Center, CT2,2900%100%
Bethlehem Village, CT2,0211%100%
Newtown, CT1,9410%100%
Georgetown, CT1,8050%100%
Southport, CT1,5850%98%
Woodmont, CT1,4880%100%
Woodbury Center, CT1,2940%100%
Wilton Center, CT7320%100%
Cannondale, CT1410%100%

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