What the Pros Know
Market Snapshot
Zip Code 21209 | Baltimore County, MD
29,960
Population
YoY
202235.3
Median Age
YoY
2022$89,398
Median Household Income
YoY
2022$667,500
Median Sale Price
4.3% MoM
6.0% YoY
6/202534
Homes Sold
0.0% MoM
9.7% YoY
6/20250.7
Months Inventory
20% MoM
29.4% YoY
6/202538
Days on Market
3 MoM
7 YoY
6/202524
Listings
20.0% MoM
60.0% YoY
6/2025239
Price per Sq Ft
1.9% MoM
0.4% YoY
6/2025
See 21209 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.