What the Pros Know
Market Snapshot
Zip Code 21227 | Baltimore County, MD
35,052
Population
YoY
202237.2
Median Age
YoY
2022$78,626
Median Household Income
YoY
2022$355,000
Median Sale Price
1.4% MoM
3.5% YoY
6/202543
Homes Sold
8.5% MoM
29.5% YoY
6/20250.9
Months Inventory
38.4% MoM
201.5% YoY
6/20258
Days on Market
0 MoM
3 YoY
6/202538
Listings
26.7% MoM
90.0% YoY
6/2025212
Price per Sq Ft
3.7% MoM
2.6% YoY
6/2025
See 21227 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.