ZIP code · Saint Marys · Pennsylvania · United States
ZIP code 15857 — Saint Marys
ZIP code 15857 serves Saint Marys, Pennsylvania.
- Postal code
- 15857Single source Value from one source, not cross-checked.
- City
- Saint Marys
- County
- Elk FIPS 42047
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 41.4289, -78.5505 — precision precise (locality)
View on OpenStreetMap - Population
- 12,825 (ZCTA, ACS 5-year)
- Population density
- 128 / sq mi
- Land area
- 100.5 sq mi (260.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $64,894
- Per-capita income
- $36,648
- Median age
- 49.8
- Households
- 5,747
- Housing units
- 6,266
- Median home value
- $144,600
- Median gross rent
- $756 / month
- Congressional district
- PA-15 (119th Congress)
- USDA hardiness zone
- 5b (-15 to -10 °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 15857 with another ZIP · ZIPs within 25 miles · distance from 15857
Map of ZIP code 15857
Climate — monthly normals
Warmest month Jul (avg high 79°F), coldest Jan (avg low 13°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 31 | 33 | 43 | 56 | 67 | 75 | 79 | 77 | 71 | 59 | 46 | 35 |
| Avg low °F | 13 | 14 | 21 | 31 | 42 | 51 | 55 | 54 | 48 | 37 | 28 | 20 |
| Precip in | 3.5 | 2.7 | 3.4 | 4.0 | 4.3 | 4.5 | 4.7 | 4.3 | 4.0 | 3.9 | 3.8 | 3.6 |
NOAA 1991–2020 climate normals from the nearest station: GLEN HAZEL 2 NE DAM (9.4 mi) · NOAA NCEI
Places in ZIP 15857
- 4 schools
- 1 colleges & universities
- 1 hospitals & clinics
- 1 doctors & dentists
- 1 pharmacies
- 4 supermarkets
- 30 restaurants & cafés
- 2 bars & pubs
- 12 parks
- 9 playgrounds
- 4 gyms & sports centres
- 2 libraries
- 1 post offices
- 5 places of worship
- 4 banks
- 7 gas stations
- 6 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