Amston, CT · standard
ZIP Code 06231
Tolland County, Connecticut - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 4,083
- 99/sq mi Moderate-density area
- $168,313
- Median income Above-median income area
- $407,500
- Median home value Above-median home value
- 59.2%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Amston pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 2%
- household income, US ZIPs
- Top 20%
- home value, US ZIPs
- 99
- people per sq mi
- 91%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 06231 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 06231 (Amston, CT) rose +8.8% from 2023 to 2024. The all-transactions index moved from 192.4 in 2023 to 209.3 in 2024 (2000 = 100).
ZIP code 06231 covers 41.1 square miles in Amston, Tolland County, Connecticut (a standard USPS delivery area), with a modest 4,083 residents on file, a density of 99 people per square mile, in the New York time zone.
ZIP 06231 skews affluent, with a median household income of $168,313 (49% above the average Connecticut ZIP), while per-capita income is $71,798. The poverty rate is 5.3%, with unemployment at 4.9%; those measures add context to the income figure. Median home value is $407,500 (6% below the average Connecticut ZIP) and median rent is $1,378; 91.0% of occupied homes are owner-occupied.
This is a highly-educated ZIP: 59.2% of adults hold a bachelor's degree or higher, the median age is 44.5, and the average commute is 34 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Tolland County, so 06231 can be compared with both its immediate and county-level context.
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 06231
Top 5 sectors by establishment count in Amston, CT
Which industries have the most business establishments in ZIP 06231.
- Professional, scientific, and technical services
Professional, scientific, and technical services
8 establishments
- Health care and social assistance
Health care and social assistance
5 establishments
- Construction
Construction
4 establishments
- Other services (except public administration)
Other services (except public administration)
4 establishments
- Administrative and support and waste management and remediation services 3
Administrative and support and waste management and remediation services
3 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 06231, Amston, 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
4,083
Population
41.1
Area (sq mi)
99
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 06231?
44.5
Median Age
50.1%
Male
49.9%
Female
2.7%
Foreign-Born
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?
$168,313
Median Household Income
+49% vs state ZIP avg
$71,798
Per Capita Income
5.3%
Poverty Rate
4.9%
Unemployment Rate
34.4 min
Mean Commute Time
How ZIP 06231 ranks among Connecticut ZIPs
Amston, CT household income vs. every Connecticut ZIP code
Median household income among 270 reporting Connecticut ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$168,313 Top 9% higher than 91% of 270 Connecticut ZIPs
Each bar is a $20K-wide band; taller bars hold more Connecticut 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,444housing units
1,444
Total Housing Units
1,295
Occupied Units
149
Vacant Units
2.80
Avg Household Size
Occupancy Type
$407,500
Median Home Value
-6% vs state ZIP avg
$1,378
Median Rent
1985
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
+8.8%
YoY Change (2024)
209
HPI Index (2000 = 100)
+109%
Total Change Since 2000
Home values in ZIP 06231 have increased 8.8% over the past year (2024). Since 2000, this ZIP has seen +109% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.6% | 138 |
| 2021 | +12.6% | 156 |
| 2022 | +10.9% | 173 |
| 2023 | +11.3% | 192 |
| 2024 | +8.8% | 209 |
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 32 business establishments in ZIP 06231, employing approximately 123 people with a combined annual payroll of $5,704,000.
32
Businesses
123
Employees
$5.7M
Annual Payroll
5
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 8 | 25.0% |
| Health care and social assistance | 5 | 15.6% |
| Construction | 4 | 12.5% |
| Other services (except public administration) | 4 | 12.5% |
| Administrative and support and waste management and remediation services | 3 | 9.4% |
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 06231 vs 06415 →
ZIP 06231 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 06415
Colchester (06415)
16,857 residents
- 06424
East Hampton (06424)
12,808 residents
- 06249
Lebanon (06249)
7,308 residents
- 06447 6,404
Marlborough (06447)
6,404 residents
- 06248 5,603
Hebron (06248)
5,603 residents
- 06237 5,492
Columbia (06237)
5,492 residents
- 06043 4,986
Bolton (06043)
4,986 residents
- 06420 4,182
Salem (06420)
4,182 residents
- 06231 4,083
Amston (06231)
4,083 residents
What this shows Among its immediate neighbors, ZIP 06231 ranks #9 by population - useful context the national average alone can't give.
ZIP 06231 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 06231
Amston (06231)
$168,313 median income
- 06447
Marlborough (06447)
$142,105 median income
- 06232
Andover (06232)
$134,632 median income
- 06248
Hebron (06248)
$134,435 median income
- 06237
Columbia (06237)
$127,000 median income
- 06043
Bolton (06043)
$126,364 median income
- 06424
East Hampton (06424)
$123,680 median income
- 06420
Salem (06420)
$123,425 median income
- 06415
Colchester (06415)
$123,256 median income
What this shows By household income, ZIP 06231 ranks the highest of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 06415 | Colchester, CT | 16,857 | 4.8 mi |
| 06447 | Marlborough, CT | 6,404 | 4.4 mi |
| 06248 | Hebron, CT | 5,603 | 4.5 mi |
| 06232 | Andover, CT | 3,297 | 7.4 mi |
| 06237 | Columbia, CT | 5,492 | 5.8 mi |
| 06249 | Lebanon, CT | 7,308 | 6.7 mi |
| 06469 | Moodus, CT | 3,209 | 9.0 mi |
| 06424 | East Hampton, CT | 12,808 | 8.4 mi |
| 06043 | Bolton, CT | 4,986 | 10.4 mi |
| 06420 | Salem, CT | 4,182 | 11.1 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 06231, both outside CT so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (4,083 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Tolland County
Related Areas
Frequently Asked Questions
What county is ZIP code 06231 in?
ZIP code 06231 (Amston) 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 06231?
ZIP code 06231 in Amston, CT has a population of 4,083 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 06231?
The median household income in ZIP 06231 is $168,313, which is 121% above the national average of $76,288.
What is the average home value in ZIP 06231?
The median home value in ZIP 06231 is $407,500, which is 47% above the national average of $278,155.
What is the demographic makeup of ZIP 06231?
The largest racial group in ZIP 06231 is White at 88.2%. Hispanic or Latino residents make up 7.5% of the population.
How many businesses are in ZIP code 06231?
ZIP code 06231 has 32 business establishments employing approximately 123 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 06231?
The top industries by establishment count in ZIP 06231 are: Professional, scientific, and technical services (8), Health care and social assistance (5), Construction (4). There are 5 industry sectors represented in total.
How have home values changed in ZIP code 06231?
According to the FHFA House Price Index, home values in ZIP 06231 increased by 8.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 109%. 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 06231?
In ZIP code 06231, 74.5% of residents aged 25+ have a high school diploma or higher, and 59.2% 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 06231?
The mean commute time for workers in ZIP code 06231 is 34.4 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 06231?
In ZIP code 06231, approximately 91.0% of occupied housing units are owner-occupied and 9.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 06231?
The poverty rate in ZIP code 06231 is 5.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 06231's numbers, next.
- See how ZIP 06231 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Amston, CT ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.