ZIP code · Grand Valley · Pennsylvania · United States
ZIP code 16420 — Grand Valley
ZIP code 16420 serves Grand Valley, Pennsylvania.
- Postal code
- 16420Single source Value from one source, not cross-checked.
- City
- Grand Valley
- County
- Warren FIPS 42123
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 41.6963, -79.5473 — precision precise (locality)
View on OpenStreetMap - Population
- 434 (ZCTA, ACS 5-year)
- Population density
- 9 / sq mi
- Land area
- 49.5 sq mi (128.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $47,321
- Per-capita income
- $29,735
- Median age
- 57.7
- Households
- 197
- Housing units
- 357
- Median home value
- $95,800
- Median gross rent
- $975 / month
- Congressional district
- PA-15 (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
- 814Telephone 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 16420 with another ZIP · ZIPs within 25 miles · distance from 16420
Map of ZIP code 16420
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Feb (avg low 14°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 35 | 44 | 58 | 69 | 77 | 81 | 80 | 73 | 61 | 48 | 37 |
| Avg low °F | 15 | 14 | 22 | 33 | 43 | 53 | 57 | 55 | 49 | 38 | 29 | 21 |
| Precip in | 3.5 | 2.7 | 3.5 | 4.2 | 4.0 | 4.9 | 4.3 | 3.6 | 4.1 | 4.2 | 3.6 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: TITUSVILLE WTR WKS (8.8 mi) · NOAA NCEI
Places in ZIP 16420
- 2 schools
- 1 places of worship
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