What the Pros Know
Market Snapshot
Zip Code 21128 | Baltimore County, MD
15,934
Population
YoY
202240
Median Age
YoY
2022$122,021
Median Household Income
YoY
2022$688,000
Median Sale Price
2.7% MoM
17.6% YoY
6/202520
Homes Sold
20.0% MoM
20.0% YoY
6/20250.4
Months Inventory
23.1% MoM
2.2% YoY
6/20257
Days on Market
2 MoM
6 YoY
6/20258
Listings
38.5% MoM
27.3% YoY
6/2025215
Price per Sq Ft
1% MoM
0.9% YoY
6/2025
See 21128 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.