Greenwich, CT ZIP codes
Greenwich, Connecticut has 3 ZIP codes, including 1 PO Box ZIP. They are in Fairfield County and Western Connecticut Planning Region.
- Population in these ZIPs
- 40,090
- Avg. median income
- $177,200population-weighted
- Typical home value
- $2,403,800population-weighted
- Metro area
- Bridgeport-Stamford-Danbury, CT
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Greenwich, CT ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 06830 | Fairfield County | 24,880 | $146,654 | $2,532,900 |
| 06831 | Fairfield County | 15,210 | $227,159 | $2,192,500 |
| 06836 PO Box | Western Connecticut Planning Region | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Greenwich
- Cos Cob 2 mi
- Riverside 3 mi
- Old Greenwich 4 mi
- Stamford 5 mi
- Darien 8 mi
- New Canaan 10 mi
- Norwalk 14 mi
- Wilton 15 mi
- Westport 17 mi
- Weston 19 mi
- Ridgefield 19 mi
- Southport 19 mi
Frequently asked questions
What county is Greenwich, Connecticut in?
Greenwich ZIP codes are in Fairfield County and Western Connecticut Planning Region.
Which Greenwich ZIP codes are PO Boxes?
06836 is a PO Box or single-organization ZIP code; it has no residential delivery area.