Zip Code: 19539 (Mertztown, PA) - Trend of Active Listing Count of Houses (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the active listing count of houses in the 19539 Zip Code in February 2026 was 2. The month over month percentage change (MoM) was 0.0%, and the year over year percentage change (YoY) was -0.6%.

You can see similar for other Pennsylvania Zip Codes, and for Pennsylvania.

The chart below shows the trend of active listing count in the 19539 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 19539 - Trend of Active Listing Count of Houses
Zip Code: 19539 Trend of Active Listing Count of Houses
Items per page:
1 – 10 of 116
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 23
Sep 2016 24
Oct 2016 25
Nov 2016 19
Dec 2016 15
Jan 2017 13
Feb 2017 8
Mar 2017 8
Apr 2017 10
May 2017 7
Jun 2017 9
Jul 2017 8
Aug 2017 9 0.2 -0.6087
Sep 2017 10 0.0556 -0.6042
Oct 2017 10 0.0526 -0.5918
Nov 2017 11 0.05 -0.4474
Dec 2017 7 -0.3333 -0.5172
Jan 2018 5 -0.2857 -0.6154
Feb 2018 6 0.2 -0.25
Mar 2018 4 -0.3333 -0.4667
Apr 2018 6 0.5 -0.4
May 2018 9 0.5 0.2857
Jun 2018 7 -0.2222 -0.2222
Jul 2018 8 0.1429 0.0667
Aug 2018 11 0.375 0.2222
Sep 2018 11 0.0 0.1579
Oct 2018 11 0.0 0.1
Nov 2018 14 0.2273 0.2857
Dec 2018 17 0.2593 1.4286
Jan 2019 17 0.0 2.4
Feb 2019 16 -0.0588 1.6667
Mar 2019 11 -0.3125 1.75
Apr 2019 10 -0.0909 0.6667
May 2019 11 0.1 0.2222
Jun 2019 10 -0.0909 0.4286
Jul 2019 9 -0.1 0.125
Aug 2019 10 0.1111 -0.0909
Sep 2019 11 0.1 0.0
Oct 2019 11 0.0 0.0
Nov 2019 11 -0.0455 -0.2222
Dec 2019 9 -0.1429 -0.4706
Jan 2020 7 -0.2222 -0.5882
Feb 2020 6 -0.1429 -0.625
Mar 2020 5 -0.1667 -0.5455
Apr 2020 4 -0.3 -0.65
May 2020 2 -0.4286 -0.8182
Jun 2020 3 0.5 -0.7
Jul 2020 4 0.1667 -0.6111
Aug 2020 3 -0.1429 -0.7
Sep 2020 4 0.3333 -0.6364
Oct 2020 6 0.375 -0.5
Nov 2020 7 0.2727 -0.3333
Dec 2020 7 0.0 -0.2222
Jan 2021 5 -0.3571 -0.3571
Feb 2021 4 -0.1111 -0.3333
Mar 2021 4 0.0 -0.2
Apr 2021 6 0.375 0.5714
May 2021 5 -0.1818 1.25
Jun 2021 2 -0.5556 -0.3333
Jul 2021 3 0.5 -0.1429
Aug 2021 6 1.0 1.0
Sep 2021 7 0.1667 0.75
Oct 2021 6 -0.2143 0.0
Nov 2021 7 0.2727 0.0
Dec 2021 2 -0.7143 -0.7143
Jan 2022 2 0.0 -0.5556
Feb 2022 2 0.0 -0.5
Mar 2022 2 -0.25 -0.625
Apr 2022 2 0.0 -0.7273
May 2022 2 0.3333 -0.5556
Jun 2022 3 0.25 0.25
Jul 2022 2 -0.4 -0.5
Aug 2022 2 0.3333 -0.6667
Sep 2022 2 -0.25 -0.7857
Oct 2022 3 0.6667 -0.5455
Nov 2022 2 -0.2 -0.7143
Dec 2022 2 -0.25 -0.25
Jan 2023 1 -0.3333 -0.5
Feb 2023 3 2.0 0.5
Mar 2023 0 -1.0 -1.0
Apr 2023 2 0.0
May 2023 3 0.6667 0.25
Jun 2023 0 -1.0 -1.0
Jul 2023 2 0.3333
Aug 2023 1 -0.5 -0.5
Sep 2023 5 4.0 2.3333
Oct 2023 3 -0.4 0.2
Nov 2023 2 -0.5 -0.25
Dec 2023 3 1.0 1.0
Jan 2024 4 0.3333 3.0
Feb 2024 3 -0.375 -0.1667
Mar 2024 2 -0.2
Apr 2024 3 0.5 1.0
May 2024 3 -0.1667 0.0
Jun 2024 3 0.0
Jul 2024 4 0.6 1.0
Aug 2024 4 0.0 3.0
Sep 2024 4 0.0 -0.2
Oct 2024 7 0.625 1.1667
Nov 2024 8 0.1538 4.0
Dec 2024 5 -0.3333 0.6667
Jan 2025 4 -0.2 0.0
Feb 2025 6 0.375 1.2
Mar 2025 5 -0.0909 1.5
Apr 2025 2 -0.6 -0.3333
May 2025 2 0.0 -0.2
Jun 2025 1 -0.5 -0.6
Jul 2025 4 3.0 0.0
Aug 2025 7 0.75 0.75
Sep 2025 4 -0.4286 0.0
Oct 2025 3 -0.25 -0.5385
Nov 2025 0 -1.0 -1.0
Dec 2025 4 -0.2
Jan 2026 2 -0.625 -0.625
Feb 2026 2 0.3333 -0.6364
Mar 2026 2 0.0 -0.6