Census place · GEOID 0917520 · Fairfield County
Cos Cob, CT ZIP codes
2 ZIP/ZCTAs intersecting this Census place (CDP) in Fairfield County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Cos Cob (GEOID 0917520). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 32,586 (2 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 Cos Cob, CT
ZIP/ZCTA overlap with Cos Cob
Population overlap
Share of each ZIP/ZCTA’s population located within Cos Cob, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
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 Cos Cob
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 06807 | Cos Cob | Fairfield County | 7,667 | $194,492 |
| 06830 | Greenwich | Fairfield County | 24,919 | $146,841 |