ZIP code · Rochester · Massachusetts · United States

ZIP code 02770 — Rochester

ZIP code 02770 serves Rochester, Massachusetts.

Postal code
02770
Single source Value from one source, not cross-checked.
City
Rochester
County
Plymouth FIPS 25023
State
Massachusetts
Country
United States
Coordinates
41.7591, -70.8523 — precision precise (locality)
View on OpenStreetMap
Population
5,716 (ZCTA, ACS 5-year)
Population density
177 / sq mi
Land area
32.4 sq mi (83.8 km²) (ZCTA, ACS 5-year)
Median household income
$119,164
Per-capita income
$53,527
Median age
42.6
Households
2,099
Housing units
2,135
Median home value
$542,800
Median gross rent
$1,442 / month
Congressional district
MA-9 (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)
Area codes
774, 508
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 82°F), coldest Jan (avg low 20°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F384046576877828174635243
Avg low °F202228374756636155443526
Precip in4.53.85.74.93.64.13.44.04.45.04.75.3

NOAA 1991–2020 climate normals from the nearest station: ROCHESTER (3.8 mi) · NOAA NCEI

Places in ZIP 02770

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