What the Pros Know
Market Snapshot
Zip Code 20609 | St. Mary, MD
1,240
Population
YoY
202254.1
Median Age
YoY
2022$112,625
Median Household Income
YoY
2022$1,075,000
Median Sale Price
58.1% MoM
168.8% YoY
5/20251
Homes Sold
50.0% MoM
85.7% YoY
5/20253.0
Months Inventory
100% MoM
125% YoY
5/202537
Days on Market
11 MoM
41 YoY
5/20253
Listings
0.0% MoM
200.0% YoY
5/2025221
Price per Sq Ft
4.6% MoM
41% YoY
5/2025
See 20609 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.