06851 ZIP Code — Norwalk, CT
Fairfield County, Connecticut
ZIP code 06851 is located in Norwalk, Connecticut, within Fairfield County. It covers approximately 7.69 square miles and serves a population of 28,217 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 203.
About ZIP code 06851
The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $514,200. Owner-occupancy sits near the national average at 59%.
The gap between median ($103,156) and mean household income suggests income inequality — a small number of higher earners pull the average up. 32% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.
Educational attainment is near the national average, with 42% of residents holding a bachelor's degree or higher.
28,217
population
7.69
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
06851 ZIP code map
Cities in ZIP code 06851
Below are the cities the US Postal Service accepts for ZIP code 06851. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Norwalk | Preferred |
Nearby ZIP codes
06857 Norwalk (1.5 mi)
06858 Norwalk (1.5 mi)
06860 Norwalk (1.5 mi)
06850 Norwalk (2.1 mi)
06889 Westport (2.4 mi)
06888 Westport (2.4 mi)
06855 Norwalk (2.7 mi)
06880 Westport (3.2 mi)
06854 Norwalk (4 mi)
06853 Norwalk (5.1 mi)
06897 Wilton (5.2 mi)
06840 New Canaan (5.3 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 28,217 |
| Population density | 3,669 / sq mi |
| State FIPS | 09 |
| County FIPS | 001 |
| Geography | |
|---|---|
| Land area | 7.69 sq mi |
| Water area | 0.06 sq mi |
| Latitude | 41.1397 |
| Longitude | -73.4054 |
| Timezone | Eastern (ET) |
| Area code | 203 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 25.3% | 27.3% | 32.0% |
| $50k – $100k | 27.3% | 23.7% | 27.7% |
| $100k – $200k | 30.9% | 26.8% | 27.1% |
| Over $200k | 16.5% | 22.2% | 13.2% |
Demographics & statistics
28,217
Population
3,669
People per sq mi
41.8
Median age
$103,156
Median household income
$58,006
Per capita income
$514,200
Median home value
$1,925
Median monthly rent
58.7%
Home ownership
8.3%
Poverty rate
4.7%
Unemployment
7,393
Housing units
41.9%
Bachelor's or higher
Age distribution
Male
Female
540
Under 5
597
681
5–9
753
645
10–14
713
599
15–19
663
766
20–24
848
1,967
25–34
2,176
1,996
35–44
2,208
1,743
45–54
1,929
1,055
55–59
1,167
1,010
60–64
1,118
1,420
65–74
1,571
661
75–84
731
313
85+
347
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 4,807 | 17.0% |
| 18 and over | 23,410 | 83.0% |
| 65 and over | 5,043 | 17.9% |
| Median age | 41.8 years | |
Race & ethnicity
White
52.5%
Black or African American
14.3%
Hispanic or Latino
13.9%
Two or more races
8.6%
Other race
6.7%
Asian
3.4%
American Indian / Alaska Native
0.4%
Native Hawaiian / Pacific Islander
0.1%
| Group | Count | % |
|---|---|---|
| White | 17,197 | 52.5% |
| Black or African American | 4,689 | 14.3% |
| Hispanic or Latino | 4,568 | 13.9% |
| Two or more races | 2,833 | 8.6% |
| Other race | 2,206 | 6.7% |
| Asian | 1,131 | 3.4% |
| American Indian / Alaska Native | 118 | 0.4% |
| Native Hawaiian / Pacific Islander | 43 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 25.3% | 27.3% | 32.0% |
| $50k – $100k | 27.3% | 23.7% | 27.7% |
| $100k – $200k | 30.9% | 26.8% | 27.1% |
| Over $200k | 16.5% | 22.2% | 13.2% |
Under $10k
2.0%
$10k–$15k
3.6%
$15k–$25k
4.0%
$25k–$35k
7.0%
$35k–$50k
7.9%
$50k–$75k
12.9%
$75k–$100k
11.4%
$100k–$150k
16.4%
$150k–$200k
14.4%
$200k+
20.3%
| Range | % of households |
|---|---|
| Under $10k | 2.0% |
| $10k–$15k | 3.6% |
| $15k–$25k | 4.0% |
| $25k–$35k | 7.0% |
| $35k–$50k | 7.9% |
| $50k–$75k | 12.9% |
| $75k–$100k | 11.4% |
| $100k–$150k | 16.4% |
| $150k–$200k | 14.4% |
| $200k+ | 20.3% |
| Median income | $103,156 |
Housing
Home values
Under $50k
2.3%
$50k–$100k
0.3%
$100k–$150k
0.3%
$150k–$200k
0.5%
$200k–$300k
6.5%
$300k–$500k
38.0%
$500k–$1M
49.6%
$1M+
2.4%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $514,200 |
| Median rent / month | $1,925 |
| Owner occupied | 58.7% |
| Renter occupied | 41.3% |
| Vacant | 6.7% |
| Single-family detached | 53.6% |
| Large apartment buildings | 13.1% |
| Mobile homes | 0.3% |
| Median rooms | 5.5 |
| Avg household size (owned) | 2.67 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 3.9% |
| 2000–2009 | 7.0% |
| 1990–1999 | 5.5% |
| 1980–1989 | 9.0% |
| 1970–1979 | 16.7% |
| 1960–1969 | 18.2% |
| 1950–1959 | 19.9% |
| 1940–1949 | 4.9% |
| 1939 or earlier | 14.9% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 3.9% |
| 1 bedroom | 17.6% |
| 2 bedrooms | 23.9% |
| 3 bedrooms | 31.5% |
| 4 bedrooms | 19.0% |
| 5+ bedrooms | 4.1% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.9% |
| 1 vehicle | 34.7% |
| 2 vehicles | 36.4% |
| 3 or more | 23.9% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 31.3% |
| Electricity | 22.0% |
| Propane / LP gas | 5.4% |
| Fuel oil | 39.7% |
| Wood | 0.7% |
| Solar | 0.1% |
| No fuel used | 0.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 5,423 | 48.3% |
| Cohabiting couple | 450 | 4.0% |
| Male householder, no spouse | 1,562 | 13.9% |
| Female householder, no spouse | 3,789 | 33.8% |
| Households with children under 18 | 2,976 | 26.5% |
| Households with seniors (65+) | 3,724 | 33.2% |
| Average household size | 2.48 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 33.6% | 34.2% |
| Married | 56.9% | 44.3% |
| Separated | 0.1% | 1.3% |
| Widowed | 1.9% | 8.0% |
| Divorced | 7.5% | 12.2% |
Education
Less than 9th grade
4.3%
Some HS, no diploma
4.3%
HS graduate
22.5%
Some college, no degree
18.8%
Associate's degree
8.2%
Bachelor's degree
23.7%
Graduate / professional
18.2%
| Metric | % |
|---|---|
| HS diploma or higher | 91.3% |
| Bachelor's or higher | 41.9% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 299 | 5.2% |
| Kindergarten | 308 | 5.4% |
| Elementary school | 2,040 | 35.6% |
| High school | 1,327 | 23.2% |
| College / grad school | 1,758 | 30.7% |
Employment
Industry of employment
Education & healthcare
21.4%
Professional & management
15.2%
Retail trade
11.4%
Finance & real estate
10.6%
Arts, food & hospitality
8.7%
Construction
6.6%
Manufacturing
6.3%
Public administration
5.7%
Other services
4.7%
Wholesale trade
4.0%
Information
3.2%
Transportation & utilities
2.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 47.1% |
| Service | 14.3% |
| Sales & office | 25.3% |
| Natural resources & construction | 6.8% |
| Production & transportation | 6.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 80.2% |
| Government | 14.4% |
| Self-employed | 5.3% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 72.7% |
| Carpool | 5.7% |
| Public transit | 6.7% |
| Walk | 0.3% |
| Work from home | 13.2% |
| Other means | 1.4% |
| Avg commute (minutes) | 27.2 |
Poverty
All people
8.3%
Under 18 years
9.2%
18 and over
8.1%
Married-couple families
2.2%
Female-led households
12.6%
Income support
| Source | % of households |
|---|---|
| Social Security | 31.8% |
| Retirement income | 19.6% |
| Supplemental Security | 3.6% |
| Cash public assistance | 3.4% |
| Food stamps / SNAP | 10.5% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 22.7% |
| High blood pressure | 27.3% |
| High cholesterol | 30.8% |
| Diabetes | 7.2% |
| Heart disease | 5.0% |
| Stroke | 2.3% |
| Asthma | 8.6% |
| Arthritis | 20.1% |
| Kidney disease | 2.4% |
| Pulmonary disease | 4.5% |
| Cancer | 6.8% |
| Behavior / access | % |
|---|---|
| Smoking | 10.5% |
| Binge drinking | 16.2% |
| No physical activity | 16.4% |
| Less than 7 hrs sleep | 30.8% |
| Depression | 17.0% |
| Fair or poor health | 9.6% |
| Poor mental health | 12.2% |
| Poor physical health | 7.9% |
| No health insurance | 11.1% |
| Visited doctor (checkup) | 74.3% |
| Visited dentist | 73.9% |
| Cholesterol screening | 92.8% |
| Teeth loss | 7.7% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 630 | 2.7% |
| Disability | % |
|---|---|
| Any disability | 10.3% |
| Under 18 | 2.1% |
| 18–64 years | 7.5% |
| 65 and over | 28.7% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 68.0% |
| Public insurance | 35.9% |
| No insurance | 8.0% |
| Uninsured under 19 | 9.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 27,080 | 96.0% |
| Spanish | 3,457 | 12.8% |
| Other Indo-European | 2,637 | 9.7% |
| Asian & Pacific Islander | 634 | 2.3% |
| Other languages | 142 | 0.5% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 20,955 | 74.3% |
| Born in same state | 20,446 | 72.5% |
| Born in different state | 13,392 | 47.5% |
| Foreign born | 509 | 1.8% |
| Naturalized citizen | 7,262 | 25.7% |
| Not a US citizen | 3,789 | 52.2% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 3,224 | 11.4% |
| Arab | 1,604 | 5.7% |
| French | 1,380 | 4.9% |
| Irish | 346 | 1.2% |
| German | 309 | 1.1% |
| Ancestry | Count | % |
|---|---|---|
| Polish | 140 | 0.5% |
| English | 94 | 0.3% |
| Dutch | 83 | 0.3% |
| Norwegian | 56 | 0.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 39.8% |
| Internet access | 95.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 06851
What city is ZIP code 06851 in?
ZIP code 06851 is primarily assigned to Norwalk, Connecticut.
What county is ZIP code 06851 in?
ZIP code 06851 falls within Fairfield County, Connecticut.
What is the typical home value in ZIP code 06851?
The median home value in ZIP code 06851 is $514,200.
What is the median household income in ZIP code 06851?
The median household income in ZIP code 06851 is $103,156, above the national median of ~$75,000.
What is the population of ZIP code 06851?
ZIP code 06851 has an estimated population of 28,217 residents, with a density of 3,671 people per square mile.
What timezone is ZIP code 06851 in?
ZIP code 06851 observes the EST timezone.