Norwalk, CT 06855 ZIP Code Profile

Related Place Profiles:
East Norwalk, CT | Norwalk, CT

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ZIP Code 06855: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Norwalk, CT 06855

Not Acceptable, USPS
East Norwalk, CT 06855

  • ZIP Code Type: STANDARD
  • County: Fairfield County
  • Centroid: Latitude 41.099, Longitude -73.4
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 303
  • PO Box Addresses: 0
  • Residential Addresses: 3,586
    • Multi-Family Addresses: 559
    • Single Family Addresses: 3,027

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


06855 ZIP Code Map

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Norwalk, CT 06855 Data & Demographics (As of July 1, 2017)


Total Population 8,766
Daytime Population: Workers 4,037
Daytime Population: Residents 3,982
Total Daytime Population (TDP) 8,019
Ratio TDP/Total Population1 0.91
Population in Households 8,728
Population in Familes 6,591
Population in Group Qrtrs 38
Population Density2 4,191
Diversity Index3 69


Median Household Income $79,016
Average Household Income $106,580
Per Capita Income $43,070


Total Housing Units 3,750 (100%)
Owner Occupied HU 1,842 (49.1%)
Renter Occupied HU 1,691 (45.1%)
Vacant Housing Units 217 ( 5.8%)
Median Home Value $475,904
Average Home Value $541,192


Total Households 3,533
Average Household Size 2.47
Family Households 2,059
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.46% 1.16%
Households 1.15% 0.98%
Families 1.13% 0.97%
Median Household Income   2.72%
Per Capita Income   2.97%

Norwalk, CT 06855 - Peer Comparisons by Rank and Percentile

The table below compares 06855 to the other 275 ZIP Codes in Connecticut by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 140 49th
Population Density # 30 89th
Diversity Index # 42 85th
Median Household Income # 147 47th
Per Capita Income # 119 57th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.

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