ZIP code · Chatham · Massachusetts · United States

ZIP code 02633 — Chatham

ZIP code 02633 serves Chatham, Massachusetts.

Postal code
02633
Single source Value from one source, not cross-checked.
City
Chatham
County
Barnstable FIPS 25001
State
Massachusetts
Country
United States
Coordinates
41.6889, -69.9722 — precision precise (locality)
View on OpenStreetMap
Population
4,536 (ZCTA, ACS 5-year)
Population density
525 / sq mi
Land area
8.6 sq mi (22.4 km²) (ZCTA, ACS 5-year)
Median household income
$94,036
Per-capita income
$88,020
Median age
64.8
Households
2,243
Housing units
5,425
Median home value
$881,400
Median gross rent
$1,005 / month
Congressional district
MA-9 (119th Congress)
USDA hardiness zone
7b (5 to 10 °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
508, 774
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 79°F), coldest Jan (avg low 26°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F394044526272797871615244
Avg low °F262631394857646458473931
Precip in3.83.64.44.03.33.02.83.03.64.24.55.0

NOAA 1991–2020 climate normals from the nearest station: CHATHAM MUNI AP (1.1 mi) · NOAA NCEI

Places in ZIP 02633

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