Census place · GEOID 0955990 · Fairfield County
Norwalk, CT ZIP codes
6 ZIP/ZCTAs intersecting this Census place in Fairfield County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Norwalk (GEOID 0955990). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 118,739 (6 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Norwalk, CT

ZIP/ZCTA overlap with Norwalk
Population overlap
Share of each ZIP/ZCTA’s population located within Norwalk, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- 06850100.0%
USPS primary city
- 06851100.0%
USPS primary city
- 06853100.0%
USPS primary city
- 06854100.0%
USPS primary city
- 0685599.8%
USPS primary city
- 068800.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Norwalk
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 06850 | Norwalk | Fairfield County | 19,774 | $121,910 |
| 06851 | Norwalk | Fairfield County | 28,591 | $106,978 |
| 06853 | Norwalk | Fairfield County | 3,229 | $250,000+ |
| 06854 | Norwalk | Fairfield County | 31,753 | $86,399 |
| 06855 | Norwalk | Fairfield County | 8,028 | $102,247 |
| 06880 | Westport | Fairfield County | 27,364 | $250,000+ |
USPS associates these ZIPs with Norwalk
These codes list Norwalk as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 06852 | Norwalk | Fairfield County | 424 | — |
| 06856 | Norwalk | Fairfield County | 5 | — |
| 06857 | Norwalk | Fairfield County | — | — |
| 06858 | Norwalk | Fairfield County | — | — |
| 06859 | Norwalk | Fairfield County | — | — |
| 06860 | Norwalk | Fairfield County | — | — |