MD area data
Zcta 21704, MD
Zcta 21704, MD.
Population: 20,006 (Census ACS)
Home values & appreciation
- Median home value
- $656,191
- 1-year appreciation
- -0.1%
- 3-year appreciation
- +6.2%
- 5-year appreciation
- +19.5%
- 10-year appreciation
- +48.8%
- All-time peak (2025-12)
- $659,171
- House Price Index
- 367.5 (+0.7% YoY)
Market activity
- Median sale price
- $550,000
- Median list price
- $549,990
- Median days on market
- 42 days
- Sale-to-list ratio
- 100.1%
- Active listings
- 22
- 1-year forecast
- -0.3%
- Days to pending
- 21 days
- New listings (monthly)
- 32
Rents
- Typical rent
- $3,031/mo
- 1-year rent change
- +1.6%
- 1BR fair-market rent
- $2,570/mo
- 3BR fair-market rent
- $3,620/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
- 3
- Elementary schools
- 3
- Middle schools
- 0
- High schools
- 0
Natural hazards & flood risk
- Overall hazard risk
- Relatively Low
- Top hazards
- lightning, winterWeather, drought, hail, heatWave
- FEMA flood zone
- A
- Flood risk level
- High
Climate (30-year normals)
- Annual precipitation
- 47.4 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 44
- Days with Good air quality
- 167
Walkability & transit
- Walkability index
- 7.2 / 20
- Transit service frequency
- -99,999
Amenities
- National parks within ~60 mi
- 60
- Nearest national park
- Monocacy National Battlefield (1 mi)
- Nearest airport
- Ijamsville Airport (2 mi)
- Nearest major airport
- Washington Dulles International Airport (IAD) (29 mi)
- Hospitals nearby (~15 mi)
- 4
- Avg hospital rating
- 3.3 / 5
- Solar radiation rating
- Fair (4.1 kWh/m²/day)
Migration
- Net migration
- +1,322 tax filers
Housing stock
- Median year housing built
- 2,007
- Median annual property tax
- $6,295
- Mean commute to work
- 24 min
- Households with broadband internet
- 85.9%
Employment & development
- Total county employment
- 88,630
- Average weekly wage
- $1,235
- Top industries (by employment)
- Health Care, Professional Services, Accommodation & Food
- Annual residential building permits (county)
- 1,185
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 →