ZIP code · Salem · Connecticut · United States

ZIP code 06420 — Salem

ZIP code 06420 serves Salem, Connecticut.

Postal code
06420
Single source Value from one source, not cross-checked.
City
Salem
County
Southeastern Connecticut FIPS 09011
State
Connecticut
Country
United States
Coordinates
41.4966, -72.2725 — precision precise (locality)
View on OpenStreetMap
Population
4,323 (ZCTA, ACS 5-year)
Population density
146 / sq mi
Land area
29.5 sq mi (76.5 km²) (ZCTA, ACS 5-year)
Median household income
$118,839
Per-capita income
$62,930
Median age
39.8
Households
1,720
Housing units
1,785
Median home value
$369,800
Median gross rent
$1,495 / month
Congressional district
CT-2 (119th Congress)
USDA hardiness zone
6b (-5 to 0 °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)
Area codes
860, 959 (from the nearest rate centre)
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 84°F), coldest Jan (avg low 21°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F384148597078848376645343
Avg low °F212329394959656355443427
Precip in3.93.85.14.73.64.33.64.44.84.94.25.0

NOAA 1991–2020 climate normals from the nearest station: NORWICH PUBLIC UTILITY PLT (10.9 mi) · NOAA NCEI

Places in ZIP 06420

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