ZIP code · Hadlyme · Connecticut · United States

ZIP code 06439 — Hadlyme

ZIP code 06439 serves Hadlyme, Connecticut.

Postal code
06439
Single source Value from one source, not cross-checked.
City
Hadlyme
County
Lower Connecticut River Valley FIPS 09011
State
Connecticut
Country
United States
Coordinates
41.4212, -72.4141 — precision precise (locality)
View on OpenStreetMap
Population
58 (ZCTA, ACS 5-year)
Population density
74 / sq mi
Land area
0.8 sq mi (2 km²) (ZCTA, ACS 5-year)
Per-capita income
$66,810
Median age
36.5
Households
36
Housing units
36
Median home value
$589,300
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 (19.4 mi) · NOAA NCEI

Places in ZIP 06439

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