What the Pros Know
Market Snapshot
Zip Code 21220 | Baltimore County, MD
42,652
Population
YoY
202237.4
Median Age
YoY
2022$77,571
Median Household Income
YoY
2022$393,250
Median Sale Price
6.7% MoM
20.1% YoY
6/202588
Homes Sold
1.1% MoM
2.3% YoY
6/20250.8
Months Inventory
1.7% MoM
17.7% YoY
6/202523
Days on Market
1 MoM
4 YoY
6/202572
Listings
2.9% MoM
28.0% YoY
6/2025215
Price per Sq Ft
4.5% MoM
1.7% YoY
6/2025
See 21220 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.