ZIP code · Porterville · California · United States
ZIP code 93257 — Porterville
ZIP code 93257 serves Porterville, California.
- Postal code
- 93257Single source Value from one source, not cross-checked.
- City
- Porterville
- County
- Tulare FIPS 06107
- State
- California
- Country
- United States
- Coordinates
- 36.0686, -119.0315 — precision precise (locality)
View on OpenStreetMap - Population
- 79,340 (ZCTA, ACS 5-year)
- Population density
- 209 / sq mi
- Land area
- 378.9 sq mi (981.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $58,261
- Per-capita income
- $23,601
- Median age
- 30.9
- Households
- 23,743
- Housing units
- 25,020
- Median home value
- $276,400
- Median gross rent
- $1,086 / month
- Congressional districts
- CA-20 (also CA-22) (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
- Area code
- 559Telephone 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 93257 with another ZIP · ZIPs within 25 miles · distance from 93257
Map of ZIP code 93257
Climate — monthly normals
Warmest month Jul (avg high 98°F), coldest Dec (avg low 39°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 59 | 65 | 71 | 76 | 84 | 93 | 98 | 97 | 92 | 82 | 68 | 59 |
| Avg low °F | 40 | 43 | 47 | 50 | 56 | 63 | 68 | 67 | 62 | 53 | 44 | 39 |
| Precip in | 2.1 | 1.9 | 2.0 | 0.9 | 0.3 | 0.1 | 0.1 | 0.0 | 0.1 | 0.6 | 0.9 | 1.9 |
NOAA 1991–2020 climate normals from the nearest station: PORTERVILLE (0.6 mi) · NOAA NCEI
Places in ZIP 93257
- 40 schools
- 1 colleges & universities
- 4 hospitals & clinics
- 2 doctors & dentists
- 4 pharmacies
- 12 supermarkets
- 80 restaurants & cafés
- 28 parks
- 9 playgrounds
- 15 gyms & sports centres
- 3 libraries
- 3 post offices
- 47 places of worship
- 2 banks
- 36 gas stations
- 11 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