ZIP Code 06231 in Amston, CT

Data Last Updated: October 1, 2025
City:Amston, Connecticut
Planning Regions:Capitol Planning Region [Primary]
Southeastern Ct Planning Region
Timezone:Eastern (GMT -05:00)
Local Time:8:50:24 PM
Population:3,901 [See All]
Area Codes:860 / 959
Classification:Standard [Normal Street Delivery]
Coordinates:41.6288, -72.3731
Land Area:15.657 sq mi
Quick Link:
https://www.zip-codes.com/zip-code/06231/zip-code-06231.asp

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In the United States, a county equivalent is a political or administrative subdivision of a state. It has a specific geographic area and some level of governmental authority. The term "county" is used in 47 states. Alaska, Louisiana, and Connecticut have functionally equivalent subdivisions called Boroughs, Parishes, and Planning Regions, respectively. They functionally act like counties by subdividing the state. Read More about Connecticut Planning Regions: Connecticut changes from Counties to Planning Regions, including a ZIP Code to Historical County Crosswalk file.
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Population & Demographics


ZIP Code 06231 has 3,901 residents and 1,465 households (average 2.65 persons per household). The median age is 44.3 years, older than the state (41.1) and older than the nation (38.8). The gender split is 49.8% male and 50.2% female, which is slightly higher than the state male share (48.5%). Largest groups are White (92.3%, much higher than the state average of 66.4% and well above the national average of 61.6%) and Hispanic or Latino (3.4%); Hispanic or Latino residents make up 3.4%, which is much lower than the national average (18.7%).

Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2023 American Community Survey (ACS) 5-Year Estimates.
2020 Population:3,901Source: Census DHC
2023 ACS Population Estimate:3,645Source: Census ACS
2025 ZC Population Estimate:4,115Source: ZIP-Codes.com
Population Density:249.2 people per sq mile
Average Income:$159,844Source: Census ACS
Households:1,465Source: Census DHC
Average House Value:$377,400Source: Census ACS
Persons Per Household:2.65Source: Census DHC
Average Family Size:2.56Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group20102011210220132014201520162017201820192020202120222023
Census ACS Population Estimate--4,1294,0543,8053,5823,6473,7723,6633,9523,9073,5483,4633,7393,645
Decennial Census4,083------------------3,901------
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 44.3

Male Median Age: 42.6

Female Median Age: 45.7

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male1131141321578779121120951431661721829684462114
Female651201161091089212611410814418217619110782702425
Total1782342482661951712472342032873483483732031661164539
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:3,59993.94%
Black:340.89%
Hispanic:*1343.50%
Asian:250.65%
American Indian:30.08%
Hawaiian:00%
Other:360.94%
Total:3,831100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:1,94249.78%42.6 years
Females:1,95950.22%45.7 years
Total:3,901100%44.3 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:3,49095.75%
Native, born in PR, Island Areas, or abroad:611.67%
Foreign born, naturalized U.S. citizen:641.76%
Foreign born, not a U.S. citizen:302.58%
Total Population:3,645100%
Total Native Population:3,55197.42%
Total Foreign-born Population:942.58%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2023, the Median household income is $159,844, which is considerably higher than the national median ($78,538), is up $45,344 (39.6%) since 2011 and above its 2019 pre-pandemic level by $34,414. Family households earn a median of $157,969 versus $95,714 for nonfamily households (a difference of $62,255). By gender, male median income is $100,391 and female is $83,272, which is much higher than the national female median ($53,445), with a current gap of $17,119 that has widened from 2011 to 2023. The labor-force participation rate is 65.2%, which is modestly greater than the national rate (63.5%). The unemployment rate is 5.1%, which is slightly lower than the state rate (5.6%). The largest occupation group is Management (50.7%).

Explore More: Income Over Time Household Income Employment Status By Occupation

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type2011201220132014201520162017201820192020202120222023
Median Household Income$114,500$119,091$116,326$108,387$111,250$113,922$104,267$119,247$125,430$137,885$145,588$149,028$159,844
Median Family Income$116,964$120,000$121,289$109,244$112,091$118,702$120,978$123,681$128,583$139,241$145,625$148,368$157,969
Median NonFamily Income$33,036$59,167$57,500$70,625$74,250$74,250$59,883$61,250$59,958$88,750$100,481$101,597$95,714
Median Male Income$76,974$77,063$78,102$76,250$0$75,172$78,825$76,912$80,493$81,369$84,107$89,719$100,391
Median Female Income$65,625$64,308$59,423$65,938$0$65,383$63,523$64,659$67,656$72,134$74,500$76,321$83,272
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:1,87361.86%
Unemployed:1003.30%
Not In Labor Force:1,05534.84%
Total:3,028100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:95050.72%
Service:36119.27%
Sales and Office:36219.33%
Natural resources, construction, and maintenance:864.59%
Production, transportation, and material moving:1146.09%
Total Civilian Employed Population:1,873100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2023, the median home value is $377,400, which is markedly greater than the national median ($303,400), is up $40,200 (11.92%) since 2011 and above its 2019 pre-pandemic level by $65,000. The median gross rent is $1,553, which is markedly greater than the national median ($1,348), is up $591 (61.43%) since 2011 and above its 2019 pre-pandemic level by $498. Of occupied housing, owners make up 92.49% (62.93% with a mortgage, 37.07% free-and-clear) and renters 7.51% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 8.36%, which is much lower than the national rate (10.43%).

Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group2011210220132014201520162017201820192020202120222023
Median Home Value$337,200$340,100$325,500$308,500$311,400$324,700$322,200$315,500$312,400$299,900$292,600$358,000$377,400
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:00.00%
$1,000 to $1,499:4544.12%
$1,500 to $1,999:5755.88%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:00.00%
Total:102100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group2011210220132014201520162017201820192020202120222023
Median Rent$962$966$1,938$1,869$1,571$1,511$0$0$1,055$0$1,142$1,140$1,553
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):79158.20%
Owner Occupied (free and clear, no mortgage):46634.29%
Renter Occupied:1027.51%
Total Occupied Housing Units:1,359100%

Occupied Housing Units:1,35991.64%
Vacant Housing Units (not graphed):1248.36%
Total Housing Units:1,483100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:1,39694.13%
Multi-Family Units:875.87%
Other Units:00.00%
Total Housing Units:1,483100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2023, 53.50% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.00%), well above both the state and national averages. High school or higher is 95.00%, which is far higher than the national rate (89.40%). The uninsured rate is 2.40%, which is far lower than the national rate (8.60%). The share of people in poverty is 2.60%, which is far lower than the national rate (8.70%), up 2.60 percentage points since 2011 and above its 2019 pre-pandemic level by 0.60 percentage points. This points to rising hardship - a weaker consumer base, greater strain on public services, and job-market headwinds. Among residents ages 3+, the largest enrollment group is elementary (43.23%). College enrollment is 29.19%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.

Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:391.41%
9th to 12th grade, no diploma:1003.61%
High school graduate (includes equivalency):47317.06%
Some college, no degree:32511.72%
Associate's degree:35312.73%
Bachelor's degree:87831.67%
Graduate or professional degree:60421.79%
Total:2,772100%
High school or higher:2,63394.99%
Bachelor's degree or higher:1,48253.46%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:2,76066.59%
Public Insurance:1,29931.34%
No Insurance:862.07%
Total:4,145100%
Has Health Insurance:4,05997.93%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2023)


Group2011210220132014201520162017201820192020202120222023
% of People in Poverty0.0%0.0%0.0%0.0%0.0%1.5%1.3%1.2%2.0%2.5%2.8%2.5%2.6%
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:647.95%
Kindergarten:283.48%
Elementary school (grades 1-8):34843.23%
High school (grades 9-12):13016.15%
College or graduate school:23529.19%
Total:805100%
Early Childhood:9211.43%
K-12 (Primary & Secondary School):50662.86%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 06231 supports both business and residential activity. According to the Business Census (2023), there are 32 business establishments, employing about 123 people with an annual payroll of $5,704,000. USPS data shows 1,553 residential mailboxes and 18 business mailboxes, reflecting local delivery coverage.

# Residential Mailboxes:1,553Source: USPS
# Business Mailboxes:18Source: USPS
Total Delivery Receptacles:1,627Source: USPS
Single Family Delivery Units:1,494Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:32Source: CBP
1st Quarter Payroll:$1,191,000Source: CBP
Annual Payroll:$5,704,000Source: CBP
# of Employees:123Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 06231 is located in Capitol Planning Region, Connecticut, within the Hartford-West Hartford-East Hartford, CT Metropolitan Statistical Area (CBSA 25540) and Connecticut's 2nd Congressional District. This Metro area has a population of 1,144,012 people, about 0.34% of whom live in ZIP Code 06231. It covers 15.657 sq mi of land and a water area of 0.184 sq mi.

CBSA Name:Hartford-West Hartford-East Hartford, CTSource: Census
CBSA Number:25540Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:1,144,012Source: Census
MSA:Hartford, CT MSASource: Census
Land Area:15.657 sq miSource: Census
Water Area:0.184 sq miSource: Census
Congressional District:02Source: USPS
Congressional Land Area:1987.68 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:--Source: Census
Place Name:--Source: Census

Adjacent & Nearby ZIP Codes


06232 | | 06230

Schools in ZIP Code 06231


We could not locate which school district 06231 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Oak Grove Montessori Elementary School 132 Pleasant Valley Rd
Mansfield Center, CT 62501
District: Private SchoolNearby
Hans Christian Andersen Montessori 212 Bolton Center Rd
Bolton, CT 06043
District: Private SchoolNearby
St Mary St Joseph School 35 Valley St
Willimantic, CT 06226
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 06231


Eastern Connecticut State University 83 Windham St
Willimantic, CT 06226
Type: Post Secondary
Manchester Community College Great Path
Manchester, CT 06040
Type: Post Secondary
Middlesex Community College 100 Training Hill Rd
Middletown, CT 06457-4829
Type: Post Secondary
University Of Connecticut 352 Mansfield Road
Storrs, CT 06269
Type: Post Secondary
Holy Apostles College And Seminary 33 Prospect Hill Road
Cromwell, CT 06416-2005
Type: Post Secondary
Porter And Chester Institute Of Rocky Hill 30 Waterchase Drive
Rocky Hill, CT 06067-1400
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on October 1, 2025.

  1. U.S. Postal Service [Last Updated: 10/1/2025], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 10/1/2025], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2023 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 10/1/2025], https://nces.ed.gov