Columbia is a town in Tolland County, Connecticut, home to about 5,300 people across 21 square miles. Its ZIP code is 06237.
Homes sold for a median of $243 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Columbia. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Columbia’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Bradley International Airport (BDL)26 miles away |
|---|---|
| Nearest city of 250,000+ | Boston, MA80 miles away |
| Nearest city of 1 million+ | New York, NY111 miles away |
Straight-line distances from the center of Columbia; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Columbia had 5,272 residents in the 2020 census, up 6% since 2000.
It’s the 127th largest of 169 towns in Connecticut by population.
Tolland County grew from 24,523 residents in 1900 to 149,788 in 2020.
Tolland County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 18°F. About 43.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Willimantic Windham Ap, CT weather station (7 miles away).
50 doctors and other health care providers list an office in Columbia.
Nearest hospitals
Providers with an office here
| Specialist doctors | 2 |
|---|---|
| Dentists | 1 |
| Mental health providers | 22 |
| Physical and occupational therapists | 25 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (3 nearby)
Grocery stores
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 3 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Columbia School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Horace W. Porter SchoolColumbia | Pre-K–8 | 440 | Public | 0.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.