ZIP code · Old Lyme · Connecticut · United States
ZIP code 06371 — Old Lyme
ZIP code 06371 serves Old Lyme, Connecticut.
- Postal code
- 06371Single source Value from one source, not cross-checked.
- City
- Old Lyme
- County
- Lower Connecticut River Valley FIPS 09011
- State
- Connecticut
- Country
- United States
- Coordinates
- 41.3347, -72.3086 — precision precise (locality)
View on OpenStreetMap - Population
- 9,855 (ZCTA, ACS 5-year)
- Population density
- 182 / sq mi
- Land area
- 54 sq mi (139.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $127,429
- Per-capita income
- $81,108
- Median age
- 51.6
- Households
- 3,994
- Housing units
- 5,503
- Median home value
- $468,200
- Median gross rent
- $1,891 / month
- Congressional district
- CT-2 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
Tools: compare 06371 with another ZIP · ZIPs within 25 miles · distance from 06371
Map of ZIP code 06371
Climate — monthly normals
Warmest month Jul (avg high 80°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 38 | 40 | 47 | 56 | 65 | 74 | 80 | 79 | 74 | 63 | 53 | 44 |
| Avg low °F | 23 | 25 | 31 | 39 | 49 | 58 | 65 | 64 | 57 | 46 | 37 | 29 |
| Precip in | 2.7 | 2.2 | 3.8 | 3.6 | 3.3 | 3.3 | 3.2 | 3.3 | 3.8 | 3.7 | 3.2 | 3.1 |
NOAA 1991–2020 climate normals from the nearest station: GROTON NEW LONDON AP (13.5 mi) · NOAA NCEI
Places in ZIP 06371
- 6 schools
- 1 supermarkets
- 2 restaurants & cafés
- 13 parks
- 4 playgrounds
- 1 libraries
- 4 post offices
- 7 places of worship
- 2 gas stations
- 6 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page