What the Pros Know
Market Snapshot
Zip Code 18103 | Lehigh County, PA
48,344
Population
YoY
202238.2
Median Age
YoY
2022$70,069
Median Household Income
YoY
2022$357,500
Median Sale Price
2.0% MoM
3.2% YoY
6/202582
Homes Sold
9.3% MoM
0.0% YoY
6/20250.4
Months Inventory
23% MoM
39.8% YoY
6/20258
Days on Market
1 MoM
0 YoY
6/202532
Listings
15.8% MoM
37.3% YoY
6/2025200
Price per Sq Ft
6.4% MoM
5.8% YoY
6/2025
See 18103 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.