PlainZIP

Columbia, CT · standard

ZIP Code 06237

Tolland County, Connecticut - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

5,492
98/sq mi
$127,000
Median income
$361,500
Median home value
34.6%
Bachelor's or higher

The verdict

Columbia pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 8%
household income, US ZIPs
Top 25%
home value, US ZIPs
98
people per sq mi
83%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 06237 against every reporting US ZIP.

ZIP code 06237 is a mid-sized community (a standard USPS delivery area) in Columbia, Tolland County, Connecticut, home to 5,492 residents across 55.9 square miles, a density of 98 people per square mile, in the New York time zone.

ZIP 06237 skews affluent, with a median household income of $127,000 (12% above the Connecticut average), while per-capita income is $56,435. Poverty here runs at 6.1%, with unemployment measured at 6.0%. The typical home here is valued at $361,500 (17% below the state average); renters pay a median of $966 monthly, and 83.3% of units are owner-occupied.

A solid share of residents have a four-year degree: 34.6% of adults hold a bachelor's degree or higher, the median age is 51.3, and the average commute is 32 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Tolland County, so you can benchmark 06237 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 06237

Top 5 sectors by establishment count in Columbia, CT

Which industries have the most business establishments in ZIP 06237.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 06237, Columbia, CT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

5,492

Population

55.9

Area (sq mi)

98

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 06237?

51.3

Median Age

54.8%

Male

45.2%

Female

2.9%

Foreign-Born

White 89.2%
African American 1.8%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.8%
Hispanic or Latino 5.4%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$127,000

Median Household Income

+12% vs state

$56,435

Per Capita Income

6.1%

Poverty Rate

6.0%

Unemployment Rate

32.0 min

Mean Commute Time

How ZIP 06237 ranks nationally

Columbia, CT household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$127,000 Top 8% higher than 92% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 61.3%
Bachelor's Degree or Higher 34.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,352

Total Housing Units

2,112

Occupied Units

240

Vacant Units

2.49

Avg Household Size

Occupancy Type

Owner 83.3%
Renter 16.7%

$361,500

Median Home Value

-17% vs state

$966

Median Rent

1984

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+7.2%

YoY Change (2024)

217

HPI Index (2000 = 100)

+117%

Total Change Since 2000

Home values in ZIP 06237 have increased 7.2% over the past year (2024). Since 2000, this ZIP has seen +117% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.6% 145
2021 +9.7% 159
2022 +13.5% 181
2023 +11.9% 202
2024 +7.2% 217

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 87 business establishments in ZIP 06237, employing approximately 762 people with a combined annual payroll of $41,635,000.

87

Businesses

762

Employees

$41.6M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Construction 13 14.9%
Health care and social assistance 13 14.9%
Other services (except public administration) 11 12.6%
Retail trade 9 10.3%
Manufacturing 7 8.1%
Professional, scientific, and technical services 7 8.1%
Administrative and support and waste management and remediation services 5 5.8%
Educational services 4 4.6%
Accommodation and food services 4 4.6%
Information 3 3.5%
Real estate and rental and leasing 3 3.5%
Arts, entertainment, and recreation 3 3.5%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 06237 vs 06232 →

ZIP 06237 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 06237 ranks #8 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 06237 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 06237 ranks #4 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
06232 Andover, CT 3,297 4.5 mi
06248 Hebron, CT 5,603 5.1 mi
06226 Willimantic, CT 20,114 5.3 mi
06238 Coventry, CT 12,428 6.4 mi
06249 Lebanon, CT 7,308 5.6 mi
06231 Amston, CT 4,083 5.8 mi
06269 Storrs Mansfield, CT 9,844 8.1 mi
06266 South Windham, CT 495 7.2 mi
06268 Storrs Mansfield, CT 11,481 7.9 mi
06415 Colchester, CT 16,857 9.7 mi

More ZIP Codes in Tolland County

06066 standard
Vernon Rockville, CT
Pop: 29,219
06029 standard
Ellington, CT
Pop: 15,547
06084 standard
Tolland, CT
Pop: 15,067
06076 standard
Stafford Springs, CT
Pop: 12,659
06238 standard
Coventry, CT
Pop: 12,428
06071 standard
Somers, CT
Pop: 11,645

Related Areas

Tolland County Columbia, CT Connecticut

Frequently Asked Questions

What county is ZIP code 06237 in? ▼
ZIP code 06237 (Columbia) is located in Tolland County, Connecticut. Tolland County contains multiple ZIP codes, see the full list at /counties/tolland-ct.
What is the population of ZIP code 06237? ▼
ZIP code 06237 in Columbia, CT has a population of 5,492 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 06237? ▼
The median household income in ZIP 06237 is $127,000, which is 66% above the national average of $76,288.
What is the average home value in ZIP 06237? ▼
The median home value in ZIP 06237 is $361,500, which is 30% above the national average of $278,155.
What is the demographic makeup of ZIP 06237? ▼
The largest racial group in ZIP 06237 is White at 89.2%. Hispanic or Latino residents make up 5.4% of the population.
How many businesses are in ZIP code 06237? ▼
ZIP code 06237 has 87 business establishments employing approximately 762 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 06237? ▼
The top industries by establishment count in ZIP 06237 are: Construction (13), Health care and social assistance (13), Other services (except public administration) (11). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 06237? ▼
According to the FHFA House Price Index, home values in ZIP 06237 increased by 7.2% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 117%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 06237? ▼
In ZIP code 06237, 61.3% of residents aged 25+ have a high school diploma or higher, and 34.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 06237? ▼
The mean commute time for workers in ZIP code 06237 is 32.0 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 06237? ▼
In ZIP code 06237, approximately 83.3% of occupied housing units are owner-occupied and 16.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 06237? ▼
The poverty rate in ZIP code 06237 is 6.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.