What city is 06855 in?

06855 is a Norwalk, CT mailing address. By land area, 97% lies inside Norwalk; the rest is outside any Census-defined city or community.

What is the population of 06855?

About 9,351 people (±1,071), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 8,380.

What is the median household income in 06855?

$106,439 (±$9,483), 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 06855?

8 USPS carrier routes with 3,820 residential and 304 business mailboxes (4,114 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 06855?

The closest, measured center to center: 06854 (2.4 mi, Norwalk), 06853 (2.5 mi, Norwalk), 06851 (4.6 mi, Norwalk), 06820 (4.7 mi, Tokeneke), 06850 (4.8 mi, Norwalk) and 06880 (5.5 mi, Staples).

06855 ZIP Code, Norwalk, CT

06855 is a ZIP code in Norwalk, Connecticut in Fairfield County. It covers 2.5 square miles of land. The closest ZIP codes are 06854, 06853 and 06851. 9,351 people live here in 3,516 households. At about 3,786 people per square mile it has suburban density, and owners and renters are mixed (57% own). Median household income is $106,439, above the Connecticut median of $95,781.

Quick facts

Mailing city: Norwalk, CT
County: Fairfield County
Land area: 2.5 sq mi
Population: 9,351
Median household income: $106,439
Carrier routes: 8 (3,820 homes)

Key figures

Measure	Value
Residents	9,351
Households	3,516
Median household income	$106,439
Income per person	$60,829
Median age	39.6
Homeowners	57.1%
Median home value	$511,200
Median rent	$1,919
Bachelor's degree or higher	41.1%
Average commute (minutes)	24.2
Households with kids under 18	26.8%
Moved in the past year	13.2%
Below the poverty line	5.2%
Broadband internet	91.7%
Speak a non-English language at home	35.5%

Household income

% of households	Value
<$10K	2.4%
$10–15K	1.9%
$15–25K	6.0%
$25–35K	2.8%
$35–50K	9.0%
$50–75K	15.0%
$75–100K	8.4%
$100–150K	20.6%
$150–200K	10.6%
$200K+	23.2%

Age

% of all residents	Value
<10	11.9%
10–19	7.4%
20–24	6.7%
25–34	14.3%
35–44	14.7%
45–54	12.7%
55–64	15.2%
65–74	8.6%
75+	8.4%

Tenure

% of housing units	Value
Owned, with mortgage	42.1%
Owned outright	12.6%
Rented	40.7%
Vacant	4.5%

Type of building

% of housing units	Value
Detached house	46.4%
Townhome	6.6%
2–4 units	24.9%
5–19 units	8.1%
20+ units	13.9%
Mobile / other	0.0%

Businesses in 06855

265 business establishments with 3,176 employees (ZIP Codes Business Patterns 2023).

Construction: 44
Accommodation and Food Services: 37
Administrative and Support and Waste Management and Remediation Services: 32
Professional, Scientific, and Technical Services: 29
Other Services (except Public Administration): 25
Retail Trade: 18
Wholesale Trade: 15
Manufacturing: 13

EDDM carrier routes

06855 has 8 USPS carrier routes with 3,820 residential and 304 business mailboxes. Open the EDDM route map.

Carrier routes in 06855

06855 has 8 USPS carrier routes (8 city (C)) with 3,820 residential and 304 business mailboxes. Routes range from 326 homes (C006) to 732 homes (C025); the median route has 433 homes. The Census counted 3,516 households in 06855 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	5
500–749	3
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 06855 for…

Most businesses

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

Route C001 — USPS business mailboxes 101, 453 homes
Route C025 — USPS business mailboxes 93, 732 homes
Route C027 — USPS business mailboxes 44, 413 homes
Route C005 — USPS business mailboxes 23, 383 homes
Route C015 — USPS business mailboxes 21, 536 homes

Select these 5 routes on the route map

Every carrier route in 06855

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	453	101	$50,774	—	—	—
C005	City	383	23	$150,226	—	—	—
C006	City	326	3	$150,226	—	—	—
C015	City	536	21	$93,776	—	—	—
C016	City	361	3	$150,226	—	—	—
C017	City	616	16	$108,079	—	—	—
C025	City	732	93	$50,774	—	—	—
C027	City	413	44	$76,641	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 06855 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

06854 — Norwalk city, CT (2.4 mi)
06853 — Norwalk city, CT (2.5 mi)
06851 — Norwalk city, CT (4.6 mi)
06820 — Tokeneke CDP, CT (4.7 mi)
06850 — Norwalk city, CT (4.8 mi)
06880 — Staples CDP, CT (5.5 mi)
06906 — Stamford city, CT (6.9 mi)
06907 — Stamford city, CT (7.1 mi)

Areas that include 06855

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 06855

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) 06855, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 06855 in?: 06855 is a Norwalk, CT mailing address. By land area, 97% lies inside Norwalk; the rest is outside any Census-defined city or community.
What county is 06855 in?: 06855 is in Fairfield County.
What is the population of 06855?: About 9,351 people (±1,071), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 8,380.
What is the median household income in 06855?: $106,439 (±$9,483), 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 06855?: 8 USPS carrier routes with 3,820 residential and 304 business mailboxes (4,114 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 06855?: The closest, measured center to center: 06854 (2.4 mi, Norwalk), 06853 (2.5 mi, Norwalk), 06851 (4.6 mi, Norwalk), 06820 (4.7 mi, Tokeneke), 06850 (4.8 mi, Norwalk) and 06880 (5.5 mi, Staples).

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