Year Built

Connecticut contains 429 ZIP codes across 15 counties. With an estimated population of 3,598,348 residents and a median age of 41.55 years, it is a middle-aged state in terms of demographics.

Economically, Connecticut is broadly a upper-middle-income state. The median household income of $104,432 is above the national average. The statewide unemployment rate is 5.7%, above the national average. Approximately 9.8% of residents live below the poverty line.

Connecticut has a mid-range housing market overall, with a median home value of $394,905 — above the national average. Median monthly rent across the state averages around $1,591. Homeownership stands at 66.6% statewide.

The population of Connecticut is majority White (62.97%). Residents are broadly well-educated — 51.0% hold a bachelor's degree or higher, above the national average.

The 429 ZIP codes across Connecticut vary widely in character — from dense urban cores to rural agricultural areas. Each of the 15 counties has its own economic profile, housing market, and demographic makeup. Browse by county below to find ZIP codes that match your specific needs, whether you're researching relocation, real estate, business demographics, or local government boundaries.

Looking for ZIP code data in Connecticut? Every ZIP code page includes population counts, median household income, home values, rental rates, age distribution, race and ethnicity breakdown, education levels, commute data, and housing stock information — all sourced from the U.S. Census Bureau's American Community Survey.