Zip Code: 19539 (Mertztown, PA) - Market Hotness: Trend of Demand Score (Realtor)
Updated on March 13, 2026.
According to data from Realtor.com, the market hotness: demand score for the 19539 Zip Code in April 2019 was 80.449.
You can see similar for other Pennsylvania Zip Codes.
The chart and table below shows the trend of the market hotness: demand score for the 19539 zip code.
Note: Demand Score is an index representing the metro's unique listing page viewers compared to other metros.
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Related Topics: Zip Code: 19539 - Realtor House Inventory Topic List
Data Source: Realtor.
Zip Code: 19539 - Market Hotness: Trend of Demand Score
Zip Code: 19539 - Market Hotness: Trend of Demand Score
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| Month | Demand Score |
|---|---|
| September 2018 | 84.54222673091554 |
| October 2018 | 84.77878330819507 |
| November 2018 | 89.97785510914268 |
| December 2018 | 82.80005140066821 |
| January 2019 | 82.77429983525535 |
| February 2019 | 88.11894787445918 |
| May 2019 | 80.44865198600534 |
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