What the Pros Know
Market Snapshot
Zip Code 20684 | St. Mary, MD
627
Population
YoY
202257
Median Age
YoY
2022$137,188
Median Household Income
YoY
2022$717,500
Median Sale Price
43.5% MoM
29.9% YoY
6/20252
Homes Sold
100.0% MoM
50.0% YoY
6/20252.0
Months Inventory
71.4% MoM
200% YoY
6/202530
Days on Market
13 MoM
8 YoY
6/20254
Listings
42.9% MoM
100.0% YoY
6/2025154
Price per Sq Ft
50.4% MoM
37.1% YoY
6/2025
See 20684 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.