Area data
Rockville, MD — ZIP 20850
Population: 50,353 (Census ACS)
Home values & appreciation
- Median home value
- $685,111
- 1-year appreciation
- -1.3%
- 3-year appreciation
- +5.3%
- 5-year appreciation
- +11.0%
- 10-year appreciation
- +30.5%
- All-time peak (2025-04)
- $699,768
- House Price Index
- 367.5 (+0.7% YoY)
Market activity
- Median sale price
- $920,000
- Median list price
- $950,000
- Median days on market
- 16.5 days
- Sale-to-list ratio
- 102.2%
- Active listings
- 53
- 1-year forecast
- -0.6%
- Days to pending
- 27 days
- New listings (monthly)
- 64
Rents
- Typical rent
- $2,546/mo
- 1-year rent change
- +0.9%
- 1BR fair-market rent
- $2,460/mo
- 3BR fair-market rent
- $3,460/mo
Affordability
- Cost of living index (Above Average)
- 108.0 (100 = US avg)
- Electricity rate (state-level)
- 19.5¢/kWh
- Natural gas rate (state-level)
- $16.10/MCF
- 30-year mortgage rate (national)
- 6.66%
- 15-year mortgage rate (national)
- 6.00%
Schools
- Total schools
- 11
- Elementary schools
- 6
- Middle schools
- 2
- High schools
- 2
Natural hazards & flood risk
- Overall hazard risk
- Relatively Moderate
- Top hazards
- winterWeather, hail, heatWave, inlandFlooding, lightning
- FEMA flood zone
- X
- Flood risk level
- Minimal
Climate (30-year normals)
- Average annual temperature
- 58.0°F
- Average high
- 67.0°F
- Average low
- 49.0°F
- Annual precipitation
- 41.2 in
- Annual snowfall
- 2.4 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 42
- Days with Good air quality
- 291
- Days with Unhealthy air quality
- 3
Walkability & transit
- Walkability index
- 13.3 / 20
- Transit service frequency
- 449
Amenities
- National parks within ~60 mi
- 59
- Nearest national park
- Chesapeake & Ohio Canal National Historical Park (7 mi)
- Nearest airport
- Montgomery County Airpark (GAI) (5 mi)
- Nearest major airport
- Washington Dulles International Airport (IAD) (18 mi)
- Hospitals nearby (~15 mi)
- 1
- Avg hospital rating
- 2.0 / 5
- Solar radiation rating
- Fair (4.2 kWh/m²/day)
Migration
- Net migration
- -6,292 tax filers
Housing stock
- Median year housing built
- 1,996
- Median annual property tax
- $7,094
- Mean commute to work
- 20 min
- Households with broadband internet
- 89.5%
Employment & development
- Total county employment
- 364,740
- Average weekly wage
- $1,688
- Top industries (by employment)
- Professional Services, Health Care, Accommodation & Food
- Annual residential building permits (county)
- 1,491
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 →