What the Pros Know
Market Snapshot
Zip Code 20866 | Montgomery County, MD
16,680
Population
YoY
202238.3
Median Age
YoY
2022$137,990
Median Household Income
YoY
2022$625,000
Median Sale Price
5.3% MoM
3.8% YoY
6/202515
Homes Sold
66.7% MoM
200.0% YoY
6/20251.0
Months Inventory
40% MoM
266.7% YoY
6/202521
Days on Market
15 MoM
14 YoY
6/202515
Listings
0.0% MoM
200.0% YoY
6/2025262
Price per Sq Ft
1.5% MoM
7.7% YoY
6/2025
See 20866 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.