Area data
Porterville, CA — ZIP 93258
Population: 1,398 (Census ACS)
Home values & appreciation
- House Price Index
- 417.4 (-0.8% YoY)
Affordability
- Cost of living index (High)
- 110.7 (100 = US avg)
- Electricity rate (state-level)
- 32.5¢/kWh
- Natural gas rate (state-level)
- $22.00/MCF
- 30-year mortgage rate (national)
- 6.66%
- 15-year mortgage rate (national)
- 6.00%
Natural hazards & flood risk
- Overall hazard risk
- Relatively High
- Top hazards
- avalanche, heatWave, inlandFlooding, landslide, lightning
Climate (30-year normals)
- Average annual temperature
- 55.0°F
- Average high
- 71.0°F
- Average low
- 38.0°F
- Annual precipitation
- 16.8 in
Air quality
- Air quality rating
- Moderate
- Median AQI (annual)
- 71
- Days with Good air quality
- 76
- Days with Unhealthy air quality
- 28
Amenities
- National parks within ~60 mi
- 1
- Nearest national park
- Sequoia & Kings Canyon National Parks (52 mi)
- Nearest airport
- Porterville Municipal Airport (PTV) (3 mi)
- Nearest major airport
- Visalia Municipal Airport (VIS) (29 mi)
- Hospitals nearby (~15 mi)
- 1
- Solar radiation rating
- Good (5.3 kWh/m²/day)
Housing stock
- Median year housing built
- 1,990
- Median annual property tax
- $1,212
- Households with broadband internet
- 53.5%
Employment & development
- Total county employment
- 140,865
- Average weekly wage
- $896
- Top industries (by employment)
- Agriculture, Health Care, Accommodation & Food
- Annual residential building permits (county)
- 1,065
Area data compiled from public government, academic, and industry research feeds. Data sources →
Data last updated
Most recent source refresh: Aug 2026. See all data sources →