CA area data
Diamond bar, CA
Aggregated across 2 ZIP codes in Diamond bar.
Population: 84,800 (Census ACS)
Home values & appreciation
- Median home value
- $1.09M
- 1-year appreciation
- +1.1%
- 3-year appreciation
- +12.2%
- 5-year appreciation
- +27.3%
- 10-year appreciation
- +62.5%
- All-time peak (2025-01)
- $1.10M
- House Price Index
- 417.4 (-0.8% YoY)
Market activity
- Median sale price
- $594,500
- Median list price
- $988,750
- Median days on market
- 67 days
- Sale-to-list ratio
- 99.0%
- Active listings
- 7
- 1-year forecast
- +0.4%
- Days to pending
- 47 days
- New listings (monthly)
- 88
Rents
- Typical rent
- $3,393/mo
- 1-year rent change
- +2.3%
- 1BR fair-market rent
- $2,870/mo
- 3BR fair-market rent
- $4,540/mo
Affordability
- Cost of living index (High)
- 113.3 (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%
Schools
- Total schools
- 21
- Elementary schools
- 14
- Middle schools
- 4
- High schools
- 3
Natural hazards & flood risk
- Overall hazard risk
- Very High
- Top hazards
- earthquake, inlandFlooding, lightning, wildfire, avalanche
- FEMA flood zone
- B
- Flood risk level
- Moderate
Climate (30-year normals)
- Average annual temperature
- 67.0°F
- Average high
- 78.0°F
- Average low
- 56.0°F
- Annual precipitation
- 11.4 in
Air quality
- Air quality rating
- Moderate
- Median AQI (annual)
- 67
- Days with Good air quality
- 41
- Days with Unhealthy air quality
- 32
Walkability & transit
- Walkability index
- 13.7 / 20
- Transit service frequency
- 767
Amenities
- National parks within ~60 mi
- 4
- Nearest national park
- Juan Bautista de Anza National Historic Trail (35 mi)
- Nearest airport
- Brackett Field (POC) (7 mi)
- Nearest major airport
- Ontario International Airport (ONT) (14 mi)
- Hospitals nearby (~15 mi)
- 51
- Avg hospital rating
- 2.5 / 5
- EV charging stations (within 10 mi)
- 578
- Solar radiation rating
- Good (5.2 kWh/m²/day)
Migration
- Net migration
- -52,940 tax filers
Housing stock
- Median year housing built
- 1,981
- Median annual property tax
- $7,095
- Mean commute to work
- 27 min
- Households with broadband internet
- 79.3%
Employment & development
- Total county employment
- 3,896,707
- Average weekly wage
- $1,512
- Top industries (by employment)
- Health Care, Accommodation & Food, Professional Services
- Annual residential building permits (county)
- 8,325
Area data compiled from public government, academic, and industry research feeds. Data sources →
ZIP codes in Diamond bar
Data last updated
Most recent source refresh: Aug 2026. See all data sources →