What the Pros Know
Market Snapshot
Zip Code 21204 | Baltimore County, MD
20,188
Population
YoY
202234.8
Median Age
YoY
2022$92,734
Median Household Income
YoY
2022$639,750
Median Sale Price
20.0% MoM
11.1% YoY
6/202532
Homes Sold
3.2% MoM
11.1% YoY
6/20250.6
Months Inventory
8.2% MoM
34.4% YoY
6/202519
Days on Market
12 MoM
4 YoY
6/202518
Listings
5.3% MoM
38.5% YoY
6/2025281
Price per Sq Ft
3.8% MoM
0.6% YoY
6/2025
See 21204 on Zillow
1. Population Data from U.S. Census Bureau.
2. Sales Data provided by Redfin, a national real estate brokerage.
MoM = Month over Month. The percentage change from the previous month to the current month.
YoY = Year over Year. The percentage change from the same period the previous year to the current period.