VA area data
Zcta 20171, VA
Zcta 20171, VA.
Population: 51,286 (Census ACS)
Home values & appreciation
- Median home value
- $811,955
- 1-year appreciation
- +0.1%
- 3-year appreciation
- +6.4%
- 5-year appreciation
- +14.4%
- 10-year appreciation
- +45.4%
- All-time peak (2025-04)
- $824,099
- House Price Index
- 423.6 (+3.3% YoY)
Market activity
- Median sale price
- $675,000
- Median list price
- $650,000
- Median days on market
- 34.5 days
- Sale-to-list ratio
- 99.9%
- Active listings
- 47
- 1-year forecast
- -0.4%
- Days to pending
- 24 days
- New listings (monthly)
- 55
Rents
- Typical rent
- $2,507/mo
- 1-year rent change
- +0.7%
- 1BR fair-market rent
- $2,390/mo
- 3BR fair-market rent
- $3,360/mo
Affordability
- Cost of living index (Above Average)
- 103.5 (100 = US avg)
- Electricity rate (state-level)
- 15.3¢/kWh
- Natural gas rate (state-level)
- $16.80/MCF
- 30-year mortgage rate (national)
- 6.66%
- 15-year mortgage rate (national)
- 6.00%
Schools
- Total schools
- 8
- Elementary schools
- 7
- Middle schools
- 1
- High schools
- 0
Natural hazards & flood risk
- Overall hazard risk
- Very Low
- FEMA flood zone
- X
- Flood risk level
- Minimal
Climate (30-year normals)
- Average annual temperature
- 79.0°F
- Average high
- 80.0°F
- Average low
- 78.0°F
- Annual precipitation
- 48.3 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 46
- Days with Good air quality
- 217
- Days with Unhealthy air quality
- 2
Walkability & transit
- Walkability index
- 11.5 / 20
- Transit service frequency
- 382
Amenities
- National parks within ~60 mi
- 59
- Nearest national park
- Wolf Trap National Park for the Performing Arts (7 mi)
- Nearest airport
- Washington Dulles International Airport (IAD) (4 mi)
- Nearest major airport
- Washington Dulles International Airport (IAD) (4 mi)
- Hospitals nearby (~15 mi)
- 339
- Avg hospital rating
- 3.0 / 5
- Solar radiation rating
- Fair (4.2 kWh/m²/day)
Migration
- Net migration
- -270 tax filers
Housing stock
- Median year housing built
- 1,996
- Median annual property tax
- $7,923
- Mean commute to work
- 17 min
- Households with broadband internet
- 89.2%
Employment & development
- Total county employment
- 18,990
- Average weekly wage
- $1,303
- Top industries (by employment)
- Health Care, Professional Services, Accommodation & Food
- Annual residential building permits (county)
- 1,032
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 →