Postal Codes

06855 ZIP Code

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ZIP code 06855 covers Norwalk, Connecticut, with a population of about 8,028 and a median household income of $102,247.

Population
8,0283,250 per square mile
Median age
41.42.7 points above the US average
Median household income
$102,2471.1× the Connecticut median
Poverty rate
5.3%7.1 points below the US average
Typical home value
$775,864up 38.9% in five years
Median rent
$1,9571.4× the Connecticut median
Degree or higher
42.5%7.5 points above the US average
Homeownership
58.4%6.6 points below the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
266

Where 06855 is

Norwalk, Connecticut — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population8,028
Median age41.4
Family households61%
Born outside the US25.5%
Speaks a language other than English at home34.6%
White (non-Hispanic)53.8%
Black (non-Hispanic)9.8%
Asian (non-Hispanic)4.4%
Hispanic or Latino25.9%
Veterans3.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$102,247
Income per person$62,350
Poverty rate5.3%
Households on SNAP or cash assistance9.5%

Household income distribution

Under $10k1.5%
$10–15k2.0%
$15–20k2.6%
$20–25k3.7%
$25–30k2.3%
$30–35k1.5%
$35–40k2.6%
$40–45k0.5%
$45–50k3.8%
$50–60k5.1%
$60–75k12.6%
$75–100k9.2%
$100–125k16.6%
$125–150k7.7%
$150–200k8.8%
$200k or more19.5%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed4,490
Mean adjusted gross income$123,434
Returns declaring $200,000 or more13.8%
Returns, under $25k25.4%
Returns, $25k–$50k18.7%
Returns, $50k–$75k14.5%
Returns, $75k–$100k8.9%
Returns, $100k–$200k18.7%
Returns, $200k or more13.8%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$492,400
Median gross rent$1,957
Rent as a share of household income31.4%
Owner-occupied58.4%
Vacant homes9.8%
Median year built1955

What the homes are

Detached house42.6%
Attached house7.1%
2 to 4 units27.3%
5 to 19 units9.5%
20 or more units13.5%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$775,864as of 2026-07
Typical home value, 1 yearup 7.1%
Typical home value, 5 yearsup 38.9%
Typical home value, 10 yearsup 74.1%
Typical asking rent$2,740as of 2026-07
Typical asking rent, 1 yearup 5.2%
Typical home value since 2000
201220192026$775,864$384,294

$384,294 in 2012 to $775,864 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate8.9%
Bachelor's degree or higher42.5%
High school diploma or higher87.9%
Works from home15.4%
Drives to work alone67.7%
Takes public transport6.2%
Commutes 45 minutes or more18.8%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity25.4% 8 pts below the national average of 33.4%
Diagnosed diabetes8.6% 3.4 pts below the national average of 12%
Currently smokes8.9% 4.3 pts below the national average of 13.2%
High blood pressure28.3% 5.8 pts below the national average of 34.1%
Fair or poor general health14.6% 5.7 pts below the national average of 20.3%
No health insurance (18–64)12% 0.7 pts above the national average of 11.3%
Depression17.4% 4.5 pts below the national average of 21.9%
No leisure-time physical activity23.7% 1.7 pts below the national average of 25.4%
Arthritis21.2% 3.9 pts below the national average of 25.1%
Binge drinking16.5% 0.5 pts above the national average of 16%
Taking blood pressure medication77.2% 2.5 pts above the national average of 74.7%
Cancer (non-skin)8.1% same as the national average of 7.7%
Current asthma9.8% 0.6 pts below the national average of 10.4%
Coronary heart disease5.1% 1.1 pts below the national average of 6.2%
Routine check-up in past year77.6% 0.9 pts above the national average of 76.7%
Cholesterol screening90.1% 4.2 pts above the national average of 85.9%
Cognitive disability10.7% 4.1 pts below the national average of 14.8%
Colorectal screening71.9% 7.6 pts above the national average of 64.3%
COPD4.7% 1.9 pts below the national average of 6.6%
Visited a dentist71.5% 10.2 pts above the national average of 61.3%
Any disability22.2% 8.5 pts below the national average of 30.7%
Lacks emotional support25.6% 0.8 pts above the national average of 24.8%
Food insecurity13.2% 3.9 pts below the national average of 17.1%
Received food stamps8.5% 5.8 pts below the national average of 14.3%
Hearing disability5.4% 1.3 pts below the national average of 6.7%
High cholesterol37.7% 1.5 pts above the national average of 36.2%
Housing insecurity11.7% 2.1 pts below the national average of 13.8%
Independent living disability6.1% 2.3 pts below the national average of 8.4%
Lacks transport7% 2.2 pts below the national average of 9.2%
Loneliness33.8% 0.6 pts below the national average of 34.4%
Mammography use78.2% 2.3 pts above the national average of 75.9%
Poor mental health (14+ days)14.2% 2.6 pts below the national average of 16.8%
Mobility disability9.6% 4.4 pts below the national average of 14%
Poor physical health (14+ days)11.3% 2.2 pts below the national average of 13.5%
Self-care disability3% 1 pts below the national average of 4%
Utility shut-off threat6.9% 1.9 pts below the national average of 8.8%
Sleeps under 7 hours34.2% 2.2 pts below the national average of 36.4%
Stroke2.9% 0.5 pts below the national average of 3.4%
All natural teeth lost10% 3 pts below the national average of 13%
Vision disability4.2% 1.4 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments266
People employed2,989
Annual payroll$269,787,000
Compared with Connecticut and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPConnecticutUnited States
Median household income$102,247$93,760$78,538
Income per person$62,350$54,409$43,289
Poverty rate5.3%10%12.4%
Median home value$492,400$343,200$303,400
Median gross rent$1,957$1,431$1,348
Homeownership58.4%66.2%65%
Bachelor's degree or higher42.5%41.9%35%
Unemployment rate8.9%5.6%5.2%
Works from home15.4%14.4%13.5%
Born outside the US25.5%15.4%13.9%
Median age41.441.238.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSTAMFORD 5 N, CT US12.5 km away
Rain in a year52 in
Snow in a year34 in

Average high and low by month

January38°F / 22.2°F4.26 in rain, 9.1 in snow
February41.4°F / 23.1°F3.14 in rain, 11.9 in snow
March49.1°F / 30.4°F4.73 in rain, 5.9 in snow
April62°F / 40.3°F4.44 in rain, 0.5 in snow
May72.3°F / 50°F4.12 in rain
June79.8°F / 58.5°F4.91 in rain
July84.8°F / 64.4°F3.77 in rain
August82.9°F / 63.1°F3.81 in rain
September75.7°F / 56.2°F5.21 in rain
October64.4°F / 44.6°F4.59 in rain
November53.1°F / 35.1°F4.19 in rain, 0.8 in snow
December42.7°F / 27.3°F4.44 in rain, 5.8 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket13% of this ZIP code's area
Far from a supermarket77% of this ZIP code's area
No vehicle and far from a supermarket36% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Norwalk School District96.7% of this ZIP code's land area
Westport School District3.3% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Walkability9.6 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

06858 Norwalk, CT1.6 km away
06856 Norwalk, CT1.9 km away
06854 Norwalk, CT2.4 km away
06851 Norwalk, CT3.5 km away
06850 Norwalk, CT3.7 km away
06853 Norwalk, CT4.7 km away
06881 Westport, CT5.7 km away
06889 Westport, CT6.3 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Fairfield County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area2.47 sq mi
Water area7.65 sq mi
Population density3,250 people per sq mi
Latitude, longitude41.1014, -73.4011

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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