What city is 06850 in?

06850 is a Norwalk, CT mailing address. By land area, 100% lies inside Norwalk.

What is the population of 06850?

About 19,692 people (±1,550), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,801.

What is the median household income in 06850?

$123,633 (±$14,415), compared with $95,781 for Connecticut as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 06850?

18 USPS carrier routes with 9,487 residential and 587 business mailboxes (10,072 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 06850?

The closest, measured center to center: 06851 (2.4 mi, Norwalk), 06854 (2.7 mi, Norwalk), 06840 (3.7 mi, New Canaan), 06820 (4 mi, Tokeneke), 06853 (4.3 mi, Norwalk) and 06907 (4.3 mi, Stamford).

06850 ZIP Code, Norwalk, CT

06850 is a ZIP code in Norwalk, Connecticut in Fairfield County. It covers 6.8 square miles of land. The closest ZIP codes are 06851, 06854 and 06840. 19,692 people live here in 8,138 households. At about 2,904 people per square mile it has suburban density, and owners and renters are mixed (54% own). Median household income is $123,633, above the Connecticut median of $95,781.

Quick facts

Mailing city: Norwalk, CT
County: Fairfield County
Land area: 6.8 sq mi
Population: 19,692
Median household income: $123,633
Carrier routes: 18 (9,487 homes)

Key figures

Measure	Value
Residents	19,692
Households	8,138
Median household income	$123,633
Income per person	$65,941
Median age	40
Homeowners	54.1%
Median home value	$581,200
Median rent	$2,170
Bachelor's degree or higher	51.2%
Average commute (minutes)	27.1
Households with kids under 18	22.5%
Moved in the past year	13.1%
Below the poverty line	8.1%
Broadband internet	96.2%
Speak a non-English language at home	35.5%

Household income

% of households	Value
<$10K	3.6%
$10–15K	4.3%
$15–25K	3.6%
$25–35K	2.1%
$35–50K	6.9%
$50–75K	12.1%
$75–100K	8.9%
$100–150K	19.8%
$150–200K	14.0%
$200K+	24.9%

Age

% of all residents	Value
<10	9.4%
10–19	8.5%
20–24	7.4%
25–34	18.0%
35–44	11.6%
45–54	14.5%
55–64	15.3%
65–74	8.5%
75+	6.9%

Tenure

% of housing units	Value
Owned, with mortgage	37.7%
Owned outright	13.9%
Rented	43.1%
Vacant	5.3%

Type of building

% of housing units	Value
Detached house	46.9%
Townhome	5.2%
2–4 units	9.2%
5–19 units	11.5%
20+ units	27.2%
Mobile / other	0.1%

Businesses in 06850

499 business establishments with 5,466 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 75
Professional, Scientific, and Technical Services: 53
Construction: 50
Administrative and Support and Waste Management and Remediation Services: 50
Other Services (except Public Administration): 50
Accommodation and Food Services: 47
Retail Trade: 45
Finance and Insurance: 30

EDDM carrier routes

06850 has 18 USPS carrier routes with 9,487 residential and 587 business mailboxes. Open the EDDM route map.

Carrier routes in 06850

06850 has 18 USPS carrier routes (18 city (C)) with 9,487 residential and 587 business mailboxes. Routes range from 315 homes (C043) to 1,204 homes (C050); the median route has 432 homes. The Census counted 8,138 households in 06850 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	11
500–749	5
750–999	0
1,000–1,499	2
1,500+	0

Best routes in 06850 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C023 — USPS business mailboxes 209, 550 homes
Route C002 — USPS business mailboxes 88, 583 homes
Route C050 — USPS business mailboxes 72, 1,204 homes
Route C037 — USPS business mailboxes 66, 432 homes
Route C046 — USPS business mailboxes 62, 1,161 homes

Select these 5 routes on the route map

Every carrier route in 06850

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C002	City	583	88	$119,504	—	—	—
C004	City	347	0	$76,686	—	—	—
C016	City	613	21	$119,504	—	—	—
C019	City	335	0	$88,985	—	—	—
C023	City	550	209	$88,985	—	—	—
C028	City	560	2	$152,638	—	—	—
C032	City	338	0	$161,644	—	—	—
C037	City	432	66	$88,985	—	—	—
C039	City	412	1	$184,124	—	—	—
C041	City	432	37	$153,255	—	—	—
C042	City	378	1	$184,124	—	—	—
C043	City	315	2	$200,001+	—	—	—
C044	City	614	17	$71,882	—	—	—
C045	City	383	1	$88,985	—	—	—
C046	City	1,161	62	$125,996	—	—	—
C048	City	462	8	$161,644	—	—	—
C049	City	368	0	$200,001+	—	—	—
C050	City	1,204	72	$84,142	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 06850 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

06851 — Norwalk city, CT (2.4 mi)
06854 — Norwalk city, CT (2.7 mi)
06840 — New Canaan CDP, CT (3.7 mi)
06820 — Tokeneke CDP, CT (4 mi)
06853 — Norwalk city, CT (4.3 mi)
06907 — Stamford city, CT (4.3 mi)
06855 — Norwalk city, CT (4.8 mi)
06880 — Staples CDP, CT (5.4 mi)

Areas that include 06850

Norwalk, CT ZIP codes — 5 ZIP codes
Fairfield County ZIP codes — 46 ZIP codes
Connecticut ZIP code data

Where it ranks

Mail every home in 06850

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 06850, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 06850 in?: 06850 is a Norwalk, CT mailing address. By land area, 100% lies inside Norwalk.
What county is 06850 in?: 06850 is in Fairfield County.
What is the population of 06850?: About 19,692 people (±1,550), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,801.
What is the median household income in 06850?: $123,633 (±$14,415), compared with $95,781 for Connecticut as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 06850?: 18 USPS carrier routes with 9,487 residential and 587 business mailboxes (10,072 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 06850?: The closest, measured center to center: 06851 (2.4 mi, Norwalk), 06854 (2.7 mi, Norwalk), 06840 (3.7 mi, New Canaan), 06820 (4 mi, Tokeneke), 06853 (4.3 mi, Norwalk) and 06907 (4.3 mi, Stamford).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.