MD area data
Arnold, MD
Arnold, MD.
Population: 22,570 (Census ACS)
Home values & appreciation
- Median home value
- $603,889
- 1-year appreciation
- +2.2%
- 3-year appreciation
- +6.4%
- 5-year appreciation
- +15.8%
- 10-year appreciation
- +46.2%
- All-time peak (2026-07)
- $603,889
- House Price Index
- 367.5 (+0.7% YoY)
Market activity
- Median sale price
- $297,500
- Median list price
- $297,000
- Median days on market
- 33 days
- Sale-to-list ratio
- 100.5%
- Active listings
- 4
- 1-year forecast
- +0.1%
- Days to pending
- 24 days
- New listings (monthly)
- 39
Rents
- Typical rent
- $2,844/mo
- 1-year rent change
- -0.6%
- 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
- 6
- Elementary schools
- 3
- Middle schools
- 2
- High schools
- 0
Natural hazards & flood risk
- Overall hazard risk
- Relatively Moderate
- Top hazards
- lightning, strongWind, winterWeather, coastalFlooding, coldWave
- FEMA flood zone
- A09
- Flood risk level
- High
Climate (30-year normals)
- Average annual temperature
- 58.0°F
- Average high
- 66.0°F
- Average low
- 50.0°F
- Annual precipitation
- 50.4 in
- Annual snowfall
- 1.6 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 40
- Days with Good air quality
- 225
Walkability & transit
- Walkability index
- 6.2 / 20
- Transit service frequency
- -99,999
Amenities
- National parks within ~60 mi
- 54
- Nearest national park
- Captain John Smith Chesapeake National Historic Trail (5 mi)
- Nearest airport
- Mountain Road Airport (5 mi)
- Nearest major airport
- Baltimore/Washington International Thurgood Marshall Airport (BWI) (13 mi)
- Hospitals nearby (~15 mi)
- 12
- Avg hospital rating
- 3.2 / 5
- Solar radiation rating
- Fair (4.2 kWh/m²/day)
Migration
- Net migration
- -634 tax filers
Housing stock
- Median year housing built
- 1,980
- Median annual property tax
- $4,376
- Mean commute to work
- 22 min
- Households with broadband internet
- 90.4%
Employment & development
- Total county employment
- 228,083
- Average weekly wage
- $1,407
- Top industries (by employment)
- Health Care, Accommodation & Food, Professional Services
- Annual residential building permits (county)
- 1,005
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 →