Stonington, CT ZIP code
The ZIP code for Stonington, Connecticut is 06378. It is in New London County.
- Population in these ZIPs
- 5,555
- Avg. median income
- $135,700population-weighted
- Typical home value
- $797,600population-weighted
- Metro area
- Norwich-New London-Willimantic, CT
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Stonington, CT ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 06378 | 5,555 | $135,714 | $797,600 |
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 Stonington
- Pawcatuck 3 mi
- Mystic 4 mi
- Ledyard 6 mi
- North Stonington 6 mi
- Mashantucket 7 mi
- Groton 8 mi
- Gales Ferry 9 mi
- New London 10 mi
- Preston 11 mi
- Quaker Hill 11 mi
- Uncasville 12 mi
- Waterford 13 mi
Frequently asked questions
What is the ZIP code for Stonington, CT?
The ZIP code for Stonington, CT is 06378.
What county is Stonington, Connecticut in?
Stonington ZIP codes are in New London County.