ZIP code · Gibson · Pennsylvania · United States
ZIP code 18820 — Gibson
ZIP code 18820 serves Gibson, Pennsylvania.
- Postal code
- 18820Single source Value from one source, not cross-checked.
- City
- Gibson
- County
- Susquehanna FIPS 42115
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 41.8034, -75.6441 — precision precise (locality)
View on OpenStreetMap - Population
- 36 (ZCTA, ACS 5-year)
- Population density
- 21 / sq mi
- Land area
- 1.8 sq mi (4.5 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $50,264
- Median age
- 42.1
- Households
- 21
- Housing units
- 32
- Congressional district
- PA-9 (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
- 570 (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.
Tools: compare 18820 with another ZIP · ZIPs within 25 miles · distance from 18820
Map of ZIP code 18820
Climate — monthly normals
Warmest month Jul (avg high 77°F), coldest Jan (avg low 12°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 29 | 32 | 40 | 53 | 65 | 73 | 77 | 76 | 69 | 57 | 45 | 34 |
| Avg low °F | 12 | 13 | 20 | 31 | 43 | 52 | 56 | 55 | 47 | 36 | 27 | 19 |
| Precip in | 3.5 | 3.0 | 3.6 | 4.2 | 4.9 | 5.0 | 5.0 | 4.5 | 5.0 | 5.0 | 3.8 | 4.0 |
NOAA 1991–2020 climate normals from the nearest station: PLEASANT MT 1 W (11.1 mi) · NOAA NCEI
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