Zip Code: 18106 (Allentown, PA) - Market Hotness: Trend of Supply Score (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the market hotness: supply score for the 18106 Zip Code in November 2024 was 99.869.

You can see similar for other Pennsylvania Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 18106 zip code.

Note: Supply Score is an index representing the metro's median days on market ranking compared to other metros.

Data Source: Realtor.
Zip Code: 18106 - Market Hotness: Trend of Supply Score
Zip Code: 18106 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 72.93345829428304
October 2017 75.66088200534927
November 2017 78.94570707070707
June 2019 59.79291333288509
July 2019 57.35535023917174
August 2019 61.05256310174343
September 2019 86.84329272223297
December 2024 99.86899899822762