ZIP code · Danville · Pennsylvania · United States

ZIP code 17821 — Danville

ZIP code 17821 serves Danville, Pennsylvania.

Postal code
17821
Single source Value from one source, not cross-checked.
City
Danville
County
Montour FIPS 42093
State
Pennsylvania
Country
United States
Coordinates
40.9799, -76.6229 — precision precise (locality)
View on OpenStreetMap
Population
18,787 (ZCTA, ACS 5-year)
Population density
140 / sq mi
Land area
134.4 sq mi (348.1 km²) (ZCTA, ACS 5-year)
Median household income
$73,137
Per-capita income
$44,771
Median age
43
Households
7,926
Housing units
8,335
Median home value
$241,600
Median gross rent
$1,078 / month
Congressional district
PA-9 (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
570, 272
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 19°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F353948617280848275645140
Avg low °F192127374757605951403225
Precip in3.02.33.33.73.84.44.33.94.53.93.23.3

NOAA 1991–2020 climate normals from the nearest station: SUNBURY (12.3 mi) · NOAA NCEI

Places in ZIP 17821

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