Haddam, CT · standard
ZIP Code 06438
Middlesex County, Connecticut - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 2,550
- 80/sq mi Moderate-density area
- $121,429
- Median income Above-median income area
- $362,500
- Median home value Above-median home value
- 53.8%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Haddam pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 9%
- household income, US ZIPs
- Top 25%
- home value, US ZIPs
- 80
- people per sq mi
- 81%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 06438 against every reporting US ZIP.
ZIP code 06438 covers 31.8 square miles in Haddam, Middlesex County, Connecticut (a standard USPS delivery area), with a modest 2,550 residents on file, a density of 80 people per square mile, in the New York time zone.
ZIP 06438 skews affluent, with a median household income of $121,429 (7% above the average Connecticut ZIP), while per-capita income is $54,727. The poverty rate is 3.3%, with unemployment at 5.9%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $362,500 (17% below the average Connecticut ZIP), and median rent is $1,662; owner occupancy is 81.1%.
This is a highly-educated ZIP: 53.8% of adults hold a bachelor's degree or higher, the median age is 46.2, and the average commute is 30 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Middlesex County, so 06438 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 06438
Top 5 sectors by establishment count in Haddam, CT
Which industries have the most business establishments in ZIP 06438.
- Retail trade
Retail trade
11 establishments
- Other services (except public administration)
Other services (except public administration)
8 establishments
- Accommodation and food services
Accommodation and food services
7 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
6 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
6 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 06438, Haddam, 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
2,550
Population
31.8
Area (sq mi)
80
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 06438?
46.2
Median Age
48.1%
Male
51.9%
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?
$121,429
Median Household Income
+7% vs state ZIP avg
$54,727
Per Capita Income
3.3%
Poverty Rate
5.9%
Unemployment Rate
30.0 min
Mean Commute Time
How ZIP 06438 ranks among Connecticut ZIPs
Haddam, 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)
$121,429 Top 35% higher than 65% 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
1,160housing units
1,160
Total Housing Units
1,036
Occupied Units
124
Vacant Units
2.69
Avg Household Size
Occupancy Type
$362,500
Median Home Value
-17% vs state ZIP avg
$1,662
Median Rent
1973
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
-0.2%
YoY Change (2024)
182
HPI Index (2000 = 100)
+82%
Total Change Since 2000
Home values in ZIP 06438 have decreased 0.2% over the past year (2024). Since 2000, this ZIP has seen +82% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +8.5% | 131 |
| 2021 | +14.5% | 151 |
| 2022 | +7.9% | 162 |
| 2023 | +12.1% | 182 |
| 2024 | -0.2% | 182 |
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 58 business establishments in ZIP 06438, employing approximately 429 people with a combined annual payroll of $16,300,000.
58
Businesses
429
Employees
$16.3M
Annual Payroll
8
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 11 | 19.0% |
| Other services (except public administration) | 8 | 13.8% |
| Accommodation and food services | 7 | 12.1% |
| Professional, scientific, and technical services | 6 | 10.3% |
| Administrative and support and waste management and remediation services | 6 | 10.3% |
| Construction | 5 | 8.6% |
| Health care and social assistance | 4 | 6.9% |
| Arts, entertainment, and recreation | 3 | 5.2% |
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 06438 vs 06412 →
ZIP 06438 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 06424
East Hampton (06424)
12,808 residents
- 06419
Killingworth (06419)
6,525 residents
- 06441
Higganum (06441)
5,438 residents
- 06423 5,097
East Haddam (06423)
5,097 residents
- 06417 4,629
Deep River (06417)
4,629 residents
- 06412 3,994
Chester (06412)
3,994 residents
- 06469 3,209
Moodus (06469)
3,209 residents
- 06442 2,745
Ivoryton (06442)
2,745 residents
- 06438 2,550
Haddam (06438)
2,550 residents
What this shows Among its immediate neighbors, ZIP 06438 ranks #9 by population - useful context the national average alone can't give.
ZIP 06438 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 06419
Killingworth (06419)
$140,655 median income
- 06414
Cobalt (06414)
$131,090 median income
- 06456
Middle Haddam (06456)
$128,542 median income
- 06424
East Hampton (06424)
$123,680 median income
- 06438
Haddam (06438)
$121,429 median income
- 06441
Higganum (06441)
$111,250 median income
- 06412
Chester (06412)
$109,191 median income
- 06423
East Haddam (06423)
$107,549 median income
- 06469
Moodus (06469)
$104,888 median income
What this shows By household income, ZIP 06438 ranks #5 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 06412 | Chester, CT | 3,994 | 3.7 mi |
| 06441 | Higganum, CT | 5,438 | 3.9 mi |
| 06424 | East Hampton, CT | 12,808 | 7.0 mi |
| 06469 | Moodus, CT | 3,209 | 4.6 mi |
| 06423 | East Haddam, CT | 5,097 | 6.0 mi |
| 06417 | Deep River, CT | 4,629 | 6.5 mi |
| 06456 | Middle Haddam, CT | 295 | 6.2 mi |
| 06419 | Killingworth, CT | 6,525 | 6.6 mi |
| 06414 | Cobalt, CT | 214 | 8.0 mi |
| 06442 | Ivoryton, CT | 2,745 | 8.4 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 06438, 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 (2,550 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Middlesex County
Related Areas
Frequently Asked Questions
What county is ZIP code 06438 in?
ZIP code 06438 (Haddam) is located in Middlesex County, Connecticut. Middlesex County contains multiple ZIP codes, see the full list at /counties/middlesex-ct.
What is the population of ZIP code 06438?
ZIP code 06438 in Haddam, CT has a population of 2,550 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 06438?
The median household income in ZIP 06438 is $121,429, which is 59% above the national average of $76,288.
What is the average home value in ZIP 06438?
The median home value in ZIP 06438 is $362,500, which is 30% above the national average of $278,155.
What is the demographic makeup of ZIP 06438?
The largest racial group in ZIP 06438 is White at 85.5%. Hispanic or Latino residents make up 3.7% of the population.
How many businesses are in ZIP code 06438?
ZIP code 06438 has 58 business establishments employing approximately 429 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 06438?
The top industries by establishment count in ZIP 06438 are: Retail trade (11), Other services (except public administration) (8), Accommodation and food services (7). There are 8 industry sectors represented in total.
How have home values changed in ZIP code 06438?
According to the FHFA House Price Index, home values in ZIP 06438 decreased by 0.2% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 82%. 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 06438?
In ZIP code 06438, 72.5% of residents aged 25+ have a high school diploma or higher, and 53.8% 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 06438?
The mean commute time for workers in ZIP code 06438 is 30.0 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 06438?
In ZIP code 06438, approximately 81.1% of occupied housing units are owner-occupied and 18.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 06438?
The poverty rate in ZIP code 06438 is 3.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
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What to do with ZIP 06438's numbers, next.
- See how ZIP 06438 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.