What the Pros Know
Market Snapshot
Zip Code 18603 | Columbia County, PA
19,147
Population
YoY
202246.9
Median Age
YoY
2022$58,309
Median Household Income
YoY
2022$234,500
Median Sale Price
23.4% MoM
28.5% YoY
6/202532
Homes Sold
10.3% MoM
28.9% YoY
6/20251.5
Months Inventory
1.3% MoM
45.1% YoY
6/202552
Days on Market
3 MoM
3 YoY
6/202549
Listings
8.9% MoM
53.1% YoY
6/2025144
Price per Sq Ft
26% MoM
13.5% YoY
6/2025
See 18603 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.