ZIP code · Petersham · Massachusetts · United States

ZIP code 01366 — Petersham

ZIP code 01366 serves Petersham, Massachusetts.

Postal code
01366
Single source Value from one source, not cross-checked.
City
Petersham
County
Worcester FIPS 25027
State
Massachusetts
Country
United States
Coordinates
42.4898, -72.1893 — precision precise (locality)
View on OpenStreetMap
Population
1,173 (ZCTA, ACS 5-year)
Population density
32 / sq mi
Land area
36.9 sq mi (95.7 km²) (ZCTA, ACS 5-year)
Median household income
$107,656
Per-capita income
$47,450
Median age
55.5
Households
463
Housing units
533
Median home value
$375,000
Median gross rent
$1,214 / month
Congressional district
MA-2 (119th Congress)
USDA hardiness zone
6a (-10 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 code
978
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 14°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F333745597079848274625039
Avg low °F141524344655605951393021
Precip in2.72.33.43.43.24.13.83.94.34.23.43.4

NOAA 1991–2020 climate normals from the nearest station: ORANGE MUNI AP (7.6 mi) · NOAA NCEI

Places in ZIP 01366

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