Area data
Columbia, MD — ZIP 21045
Population: 40,034 (Census ACS)
Home values & appreciation
- Median home value
- $488,441
- 1-year appreciation
- +0.2%
- 3-year appreciation
- +5.8%
- 5-year appreciation
- +17.8%
- 10-year appreciation
- +47.9%
- All-time peak (2025-03)
- $490,580
- House Price Index
- 367.5 (+0.7% YoY)
Market activity
- Median sale price
- $484,000
- Median list price
- $475,000
- Median days on market
- 23.5 days
- Sale-to-list ratio
- 102.5%
- Active listings
- 57
- 1-year forecast
- -0.2%
- Days to pending
- 17 days
- New listings (monthly)
- 49
Rents
- Typical rent
- $2,308/mo
- 1-year rent change
- +4.2%
- 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
- 11
- Elementary schools
- 7
- Middle schools
- 2
- High schools
- 2
Natural hazards & flood risk
- Overall hazard risk
- Relatively Low
- Top hazards
- lightning, strongWind, winterWeather, drought, heatWave
- 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
- 49.6 in
- Annual snowfall
- 1.8 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 38
- Days with Good air quality
- 268
- Days with Unhealthy air quality
- 3
Walkability & transit
- Walkability index
- 12.8 / 20
- Transit service frequency
- 1,061
Amenities
- National parks within ~60 mi
- 58
- Nearest national park
- Baltimore-Washington Parkway (13 mi)
- Nearest airport
- Baltimore/Washington International Thurgood Marshall Airport (BWI) (9 mi)
- Nearest major airport
- Baltimore/Washington International Thurgood Marshall Airport (BWI) (9 mi)
- Hospitals nearby (~15 mi)
- 28
- Avg hospital rating
- 3.0 / 5
- Solar radiation rating
- Fair (4.1 kWh/m²/day)
Migration
- Net migration
- -1,315 tax filers
Housing stock
- Median year housing built
- 1,978
- Median annual property tax
- $5,700
- Mean commute to work
- 21 min
- Households with broadband internet
- 89.8%
Employment & development
- Total county employment
- 151,376
- Average weekly wage
- $1,643
- Top industries (by employment)
- Professional Services, Health Care, Wholesale Trade
- Annual residential building permits (county)
- 592
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 →