ZIP code · Locust Gap · Pennsylvania · United States
ZIP code 17840 — Locust Gap
ZIP code 17840 serves Locust Gap, Pennsylvania.
- Postal code
- 17840Single source Value from one source, not cross-checked.
- City
- Locust Gap
- County
- Northumberland FIPS 42097
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 40.7727, -76.4383 — precision precise (locality)
View on OpenStreetMap - Population
- 197 (ZCTA, ACS 5-year)
- Population density
- 99 / sq mi
- Land area
- 2 sq mi (5.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $69,087
- Per-capita income
- $30,021
- Median age
- 63.1
- Households
- 69
- Housing units
- 136
- 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)
Tools: compare 17840 with another ZIP · ZIPs within 25 miles · distance from 17840
Map of ZIP code 17840
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 19°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 38 | 48 | 61 | 71 | 79 | 84 | 80 | 74 | 62 | 50 | 40 |
| Avg low °F | 19 | 22 | 29 | 39 | 48 | 57 | 61 | 60 | 53 | 42 | 33 | 25 |
| Precip in | 3.5 | 2.5 | 3.7 | 4.3 | 4.2 | 4.8 | 4.4 | 4.1 | 5.2 | 4.3 | 3.5 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: BEAR GAP (4.6 mi) · NOAA NCEI
Places in ZIP 17840
- 1 parks
- 1 police & fire stations
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