Area data
Gwynn oak, MD — ZIP 21207
Population: 47,099 (Census ACS)
Home values & appreciation
- Median home value
- $293,837
- 1-year appreciation
- +1.6%
- 3-year appreciation
- +8.9%
- 5-year appreciation
- +17.0%
- 10-year appreciation
- +72.5%
- All-time peak (2026-05)
- $293,947
- House Price Index
- 367.5 (+0.7% YoY)
Market activity
- Median sale price
- $150,000
- Median list price
- $210,000
- Median days on market
- 3 days
- Sale-to-list ratio
- 92.6%
- Active listings
- 2
- 1-year forecast
- +0.1%
- Days to pending
- 28 days
- New listings (monthly)
- 40
Rents
- Typical rent
- $1,433/mo
- 1-year rent change
- +2.9%
- 1BR fair-market rent
- $1,437/mo
- 3BR fair-market rent
- $2,216/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
- 17
- Elementary schools
- 11
- Middle schools
- 3
- High schools
- 3
Natural hazards & flood risk
- Overall hazard risk
- Relatively High
- Top hazards
- winterWeather, coldWave, heatWave, inlandFlooding, lightning
- 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)
- 45
- Days with Good air quality
- 228
- Days with Unhealthy air quality
- 3
Walkability & transit
- Walkability index
- 11.3 / 20
- Transit service frequency
- 767
Amenities
- National parks within ~60 mi
- 57
- Nearest national park
- Star-Spangled Banner National Historic Trail (7 mi)
- Nearest airport
- Baltimore/Washington International Thurgood Marshall Airport (BWI) (11 mi)
- Nearest major airport
- Baltimore/Washington International Thurgood Marshall Airport (BWI) (11 mi)
- Hospitals nearby (~15 mi)
- 1
- Solar radiation rating
- Fair (4.1 kWh/m²/day)
Migration
- Net migration
- -2,817 tax filers
Housing stock
- Median year housing built
- 1,961
- Median annual property tax
- $2,940
- Mean commute to work
- 26 min
- Households with broadband internet
- 66.9%
Employment & development
- Total county employment
- 269,861
- Average weekly wage
- $1,522
- Top industries (by employment)
- Health Care, Education, Professional Services
- Annual residential building permits (county)
- 866
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 →