What the Pros Know
Market Snapshot
Zip Code 20171 | Fairfax County, VA
51,081
Population
YoY
202236.1
Median Age
YoY
2022$155,357
Median Household Income
YoY
2022$995,000
Median Sale Price
5.2% MoM
7.0% YoY
6/202567
Homes Sold
8.2% MoM
15.2% YoY
6/20250.4
Months Inventory
22.2% MoM
155.9% YoY
6/202547
Days on Market
6 MoM
23 YoY
6/202525
Listings
28.6% MoM
21.9% YoY
6/2025327
Price per Sq Ft
2.2% MoM
1% YoY
6/2025
See 20171 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.