What the Pros Know
Market Snapshot
Zip Code 21237 | Baltimore County, MD
30,983
Population
YoY
202240.5
Median Age
YoY
2022$84,118
Median Household Income
YoY
2022$350,000
Median Sale Price
4.5% MoM
6.1% YoY
6/202542
Homes Sold
10.5% MoM
35.5% YoY
6/20250.7
Months Inventory
35.4% MoM
42.9% YoY
6/202540
Days on Market
10 MoM
25 YoY
6/202530
Listings
28.6% MoM
31.8% YoY
6/2025201
Price per Sq Ft
15.1% MoM
2.3% YoY
6/2025
See 21237 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.