06855 ZIP Code — Norwalk, CT

Fairfield County, Connecticut

ZIP code 06855 is located in Norwalk, Connecticut, within Fairfield County. It covers approximately 2.47 square miles and serves a population of 8,085 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 203/475.

About ZIP code 06855

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $495,400. Owner-occupancy sits near the national average at 56%.

The gap between median ($97,880) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average. 31% 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 39% of residents holding a bachelor's degree or higher.

8,085

population

2.47

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

06855 ZIP code map

Cities in ZIP code 06855

Below are the cities the US Postal Service accepts for ZIP code 06855. Using any city not on this list may result in mail delivery delays.

City	Status
Norwalk	Acceptable
Norwalk	Preferred

Nearby ZIP codes

06857 Norwalk (1.3 mi) 06860 Norwalk (1.3 mi) 06858 Norwalk (1.3 mi) 06854 Norwalk (1.7 mi) 06851 Norwalk (2.7 mi) 06850 Norwalk (2.9 mi) 06853 Norwalk (2.9 mi) 06889 Westport (3.5 mi) 06888 Westport (3.5 mi) 06880 Westport (3.8 mi) 06820 Darien (4.6 mi) 06907 Stamford (6.3 mi)

Demographics updated 05/2026

Population
Total population	8,085
Population density	3,273 / sq mi
State FIPS	09
County FIPS	001

Geography
Land area	2.47 sq mi
Water area	7.65 sq mi
Latitude	41.1003
Longitude	-73.3984
Timezone	Eastern (ET)
Area code	203/475

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.9%	27.3%	32.0%
$50k – $100k	29.9%	23.7%	27.7%
$100k – $200k	23.2%	26.8%	27.1%
Over $200k	13.9%	22.2%	13.2%

Demographics & statistics

8,085

Population

3,273

People per sq mi

44.4

Median age

$97,880

Median household income

$59,334

Per capita income

$495,400

Median home value

$1,825

Median monthly rent

55.6%

Home ownership

6.5%

Poverty rate

9.0%

Unemployment

2,231

Housing units

39.3%

Bachelor's or higher

Age distribution

Male Female

179

Under 5

158

193

5–9

170

190

10–14

168

119

15–19

104

219

20–24

193

685

25–34

603

623

35–44

548

631

45–54

556

333

55–59

294

387

60–64

341

426

65–74

375

212

75–84

187

102

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,257	15.5%
18 and over	6,828	84.5%
65 and over	1,391	17.2%
Median age	44.4 years

Race & ethnicity

White 57.5%

Hispanic or Latino 13.1%

Black or African American 9.3%

Two or more races 8.6%

Other race 8.5%

Asian 2.6%

Native Hawaiian / Pacific Islander 0.4%

Group	Count	%
White	5,353	57.5%
Hispanic or Latino	1,221	13.1%
Black or African American	865	9.3%
Two or more races	801	8.6%
Other race	789	8.5%
Asian	242	2.6%
Native Hawaiian / Pacific Islander	35	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.9%	27.3%	32.0%
$50k – $100k	29.9%	23.7%	27.7%
$100k – $200k	23.2%	26.8%	27.1%
Over $200k	13.9%	22.2%	13.2%

Under $10k 2.6%

$10k–$15k 4.1%

$15k–$25k 5.0%

$25k–$35k 6.8%

$35k–$50k 6.1%

$50k–$75k 17.0%

$75k–$100k 9.0%

$100k–$150k 21.7%

$150k–$200k 9.2%

$200k+ 18.5%

Range	% of households
Under $10k	2.6%
$10k–$15k	4.1%
$15k–$25k	5.0%
$25k–$35k	6.8%
$35k–$50k	6.1%
$50k–$75k	17.0%
$75k–$100k	9.0%
$100k–$150k	21.7%
$150k–$200k	9.2%
$200k+	18.5%
Median income	$97,880

Housing

Home values

Under $50k 2.0%

$100k–$150k 2.6%

$150k–$200k 3.2%

$200k–$300k 15.7%

$300k–$500k 27.5%

$500k–$1M 35.5%

$1M+ 13.5%

Housing overview

Metric	Value
Median home value	$495,400
Median rent / month	$1,825
Owner occupied	55.6%
Renter occupied	44.4%
Vacant	9.3%
Single-family detached	42.6%
Large apartment buildings	12.6%
Mobile homes	0.0%
Median rooms	5.1
Avg household size (owned)	2.51

Year built

Era	%
2020 or later	0.0%
2010–2019	7.8%
2000–2009	3.5%
1990–1999	5.0%
1980–1989	9.7%
1970–1979	7.0%
1960–1969	8.9%
1950–1959	15.7%
1940–1949	7.7%
1939 or earlier	34.5%

Bedrooms

Size	% of units
No bedroom (studio)	4.5%
1 bedroom	19.2%
2 bedrooms	28.1%
3 bedrooms	32.7%
4 bedrooms	11.7%
5+ bedrooms	3.9%

Vehicles per household

Vehicles	% of households
No vehicle	8.3%
1 vehicle	35.3%
2 vehicles	41.2%
3 or more	15.3%

Heating fuel

Fuel type	%
Utility gas	47.4%
Electricity	21.6%
Propane / LP gas	5.6%
Fuel oil	24.3%
Wood	0.3%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	1,565	46.2%
Cohabiting couple	270	8.0%
Male householder, no spouse	559	16.5%
Female householder, no spouse	993	29.3%
Households with children under 18	735	21.7%
Households with seniors (65+)	1,028	30.4%
Average household size	2.38

Marital status

Status	Male	Female
Never married	40.6%	31.9%
Married	47.9%	48.8%
Separated	2.2%	1.6%
Widowed	1.9%	6.1%
Divorced	7.4%	11.6%

Education

Less than 9th grade 7.5%

Some HS, no diploma 4.3%

HS graduate 26.4%

Some college, no degree 16.6%

Associate's degree 5.9%

Bachelor's degree 24.2%

Graduate / professional 15.0%

Metric	%
HS diploma or higher	88.2%
Bachelor's or higher	39.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	181	12.3%
Kindergarten	11	0.7%
Elementary school	630	42.7%
High school	261	17.7%
College / grad school	394	26.7%

Employment

Industry of employment

Education & healthcare 21.5%

Professional & management 19.0%

Retail trade 11.3%

Construction 11.1%

Arts, food & hospitality 8.1%

Manufacturing 7.1%

Finance & real estate 7.0%

Other services 5.0%

Transportation & utilities 4.7%

Information 2.1%

Wholesale trade 1.4%

Public administration 0.9%

Agriculture & mining 0.8%

Occupation

Category	%
Management, business & arts	40.7%
Service	16.4%
Sales & office	18.9%
Natural resources & construction	15.7%
Production & transportation	8.3%

Employment type

Type	%
Private sector	81.1%
Government	8.5%
Self-employed	10.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	67.3%
Carpool	9.1%
Public transit	7.8%
Walk	1.5%
Work from home	13.0%
Other means	1.3%
Avg commute (minutes)	26.6

Poverty

All people 6.5%

Under 18 years 4.7%

18 and over 6.9%

Married-couple families 0.6%

Female-led households 13.7%

Income support

Source	% of households
Social Security	31.1%
Retirement income	20.6%
Supplemental Security	5.5%
Cash public assistance	1.4%
Food stamps / SNAP	7.0%

Health indicators

Condition	%
Obesity	24.4%
High blood pressure	27.6%
High cholesterol	30.1%
Diabetes	7.8%
Heart disease	5.2%
Stroke	2.5%
Asthma	9.0%
Arthritis	20.0%
Kidney disease	2.5%
Pulmonary disease	5.0%
Cancer	6.2%

Behavior / access	%
Smoking	12.1%
Binge drinking	16.5%
No physical activity	18.6%
Less than 7 hrs sleep	31.8%
Depression	17.5%
Fair or poor health	11.3%
Poor mental health	13.1%
Poor physical health	8.7%
No health insurance	13.5%
Visited doctor (checkup)	73.5%
Visited dentist	69.6%
Cholesterol screening	91.5%
Teeth loss	9.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	272	4.0%

Disability	%
Any disability	11.0%
Under 18	1.0%
18–64 years	9.6%
65 and over	25.1%

Health insurance coverage

Type	%
Private insurance	67.6%
Public insurance	28.8%
No insurance	11.5%
Uninsured under 19	2.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,748	95.8%
Spanish	1,364	17.6%
Other Indo-European	1,120	14.5%
Asian & Pacific Islander	205	2.6%
Other languages	39	0.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,136	75.9%
Born in same state	6,001	74.2%
Born in different state	3,597	44.5%
Foreign born	135	1.7%
Naturalized citizen	1,949	24.1%
Not a US citizen	842	43.2%

Ancestry

Ancestry	Count	%
Italian	1,658	20.5%
French	791	9.8%
Arab	251	3.1%
German	206	2.5%
Irish	171	2.1%

Ancestry	Count	%
Polish	135	1.7%
English	50	0.6%
Norwegian	15	0.2%
Dutch	6	0.1%

Technology access

Metric	% of households
Computer access	41.9%
Internet access	93.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 06855

What city is ZIP code 06855 in?

ZIP code 06855 is primarily assigned to Norwalk, Connecticut.

What county is ZIP code 06855 in?

ZIP code 06855 falls within Fairfield County, Connecticut.

What is the typical home value in ZIP code 06855?

The median home value in ZIP code 06855 is $495,400.

What is the population of ZIP code 06855?

ZIP code 06855 has an estimated population of 8,085 residents, with a density of 3,273 people per square mile.

What is the median household income in ZIP code 06855?

The median household income in ZIP code 06855 is $97,880, above the national median of ~$75,000.

What timezone is ZIP code 06855 in?

ZIP code 06855 observes the EST timezone.