Zip Code: 17509 (Christiana, 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 17509 Zip Code in February 2026 was 1. The month over month percentage change (MoM) was -0.5%, and the year over year percentage change (YoY) was 1.0%.

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

The chart below shows the trend of active listing count in the 17509 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 17509 - Trend of Active Listing Count of Houses
Zip Code: 17509 Trend of Active Listing Count of Houses
Items per page:
1 – 10 of 114
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 14
Sep 2016 14
Oct 2016 14
Nov 2016 8
Dec 2016 11
Jan 2017 13
Feb 2017 17
Mar 2017 16
Apr 2017 13
May 2017 14
Jun 2017 14
Jul 2017 16
Aug 2017 18 0.125 0.2857
Sep 2017 20 0.1111 0.4286
Oct 2017 19 -0.05 0.4074
Nov 2017 19 -0.0263 1.3125
Dec 2017 14 -0.2703 0.2857
Jan 2018 13 -0.037 0.0
Feb 2018 10 -0.2308 -0.4118
Mar 2018 8 -0.2 -0.4839
Apr 2018 5 -0.375 -0.6
May 2018 6 0.1 -0.6071
Jun 2018 7 0.2727 -0.4815
Jul 2018 6 -0.1429 -0.625
Aug 2018 10 0.6667 -0.4444
Sep 2018 8 -0.2 -0.6
Oct 2018 10 0.25 -0.4737
Nov 2018 9 -0.1 -0.5135
Dec 2018 13 0.4444 -0.037
Jan 2019 10 -0.2308 -0.2308
Feb 2019 7 -0.3 -0.3
Mar 2019 7 -0.0714 -0.1875
Apr 2019 6 -0.0769 0.2
May 2019 5 -0.25 -0.1818
Jun 2019 4 -0.2222 -0.5
Jul 2019 5 0.4286 -0.1667
Aug 2019 7 0.3 -0.35
Sep 2019 6 -0.0769 -0.25
Oct 2019 7 0.1667 -0.3
Nov 2019 7 -0.0714 -0.2778
Dec 2019 7 0.0769 -0.4615
Jan 2020 6 -0.2143 -0.45
Feb 2020 5 -0.1818 -0.3571
Mar 2020 4 -0.1111 -0.3846
Apr 2020 4 0.0 -0.3333
May 2020 3 -0.25 -0.3333
Jun 2020 2 -0.3333 -0.4286
Jul 2020 1 -0.5 -0.8
Aug 2020 1 0.0 -0.8462
Sep 2020 2 1.0 -0.6667
Oct 2020 3 0.25 -0.6429
Nov 2020 4 0.6 -0.3846
Dec 2020 2 -0.5 -0.7143
Jan 2021 3 0.25 -0.5455
Feb 2021 1 -0.6 -0.7778
Mar 2021 1 0.0 -0.75
May 2021 2 -0.5
Jun 2021 1 -0.3333 -0.5
Jul 2021 2 0.5 0.5
Aug 2021 3 1.0 2.0
Sep 2021 4 0.1667 0.75
Oct 2021 3 -0.2857 0.0
Nov 2021 2 -0.2 -0.5
Dec 2021 2 0.0 0.0
Jan 2022 4 0.75 0.4
Feb 2022 4 0.1429 3.0
Mar 2022 4 0.0 3.0
Apr 2022 5 0.25
May 2022 4 -0.2 1.6667
Jun 2022 4 0.0 3.0
Jul 2022 4 0.0 1.6667
Aug 2022 5 0.25 0.6667
Sep 2022 7 0.3 0.8571
Oct 2022 4 -0.3846 0.6
Nov 2022 5 0.25 1.5
Dec 2022 5 -0.1 1.25
Jan 2023 2 -0.5556 -0.4286
Feb 2023 2 -0.25 -0.625
Mar 2023 1 -0.3333 -0.75
Apr 2023 1 0.0 -0.8
May 2023 3 2.0 -0.25
Jun 2023 3 0.0 -0.25
Jul 2023 3 -0.1667 -0.375
Aug 2023 2 -0.4 -0.7
Sep 2023 1 -0.3333 -0.8462
Oct 2023 1 0.0 -0.75
Nov 2023 2 1.0 -0.6
Dec 2023 3 0.25 -0.4444
Jan 2024 2 -0.2 0.0
Feb 2024 2 0.0 0.3333
Mar 2024 2 -0.25 0.5
Apr 2024 2 0.3333 1.0
May 2024 1 -0.5 -0.6667
Jul 2024 1 -0.6
Aug 2024 2 1.0 0.3333
Sep 2024 3 0.5 2.0
Oct 2024 4 0.1667 2.5
Nov 2024 3 -0.2857 0.25
Dec 2024 3 0.2 0.2
Jan 2025 2 -0.3333 0.0
Feb 2025 1 -0.5 -0.5
Mar 2025 1 -0.5 -0.6667
Apr 2025 1 1.0 -0.5
May 2025 2 1.0 1.0
Jun 2025 2 0.0
Jul 2025 2 0.0 1.0
Aug 2025 3 0.25 0.25
Sep 2025 1 -0.6 -0.6667
Oct 2025 1 0.0 -0.7143
Nov 2025 2 1.0 -0.2
Dec 2025 2 0.0 -0.3333
Jan 2026 2 0.0 0.0
Feb 2026 2 0.0 1.0
Mar 2026 1 -0.5 1.0