Zip Code: 17857 (Northumberland, 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 17857 Zip Code in February 2026 was 7. The month over month percentage change (MoM) was 0.0%, and the year over year percentage change (YoY) was -0.125%.

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

The chart below shows the trend of active listing count in the 17857 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 17857 - Trend of Active Listing Count of Houses
Zip Code: 17857 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 46
Sep 2016 45
Oct 2016 42
Nov 2016 44
Dec 2016 43
Jan 2017 38
Feb 2017 39
Mar 2017 42
Apr 2017 41
May 2017 43
Jun 2017 44
Jul 2017 41
Aug 2017 38 -0.0617 -0.1739
Sep 2017 39 0.0263 -0.1333
Oct 2017 44 0.1282 0.0476
Nov 2017 42 -0.0455 -0.0455
Dec 2017 37 -0.119 -0.1395
Jan 2018 29 -0.2162 -0.2368
Feb 2018 25 -0.1552 -0.3636
Mar 2018 22 -0.102 -0.4699
Apr 2018 27 0.2273 -0.3333
May 2018 27 0.0 -0.3721
Jun 2018 25 -0.0741 -0.4318
Jul 2018 25 0.0 -0.3827
Aug 2018 25 0.0 -0.3421
Sep 2018 23 -0.08 -0.4103
Oct 2018 22 -0.0435 -0.5
Nov 2018 23 0.0227 -0.4643
Dec 2018 28 0.2222 -0.2568
Jan 2019 28 0.0182 -0.0345
Feb 2019 24 -0.1429 -0.0204
Mar 2019 24 -0.0208 0.0682
Apr 2019 26 0.1064 -0.037
May 2019 26 -0.0192 -0.0556
Jun 2019 24 -0.0588 -0.04
Jul 2019 25 0.0417 0.0
Aug 2019 28 0.1 0.1
Sep 2019 29 0.0545 0.2609
Oct 2019 30 0.0345 0.3636
Nov 2019 30 0.0 0.3333
Dec 2019 31 0.0333 0.1273
Jan 2020 30 -0.0323 0.0714
Feb 2020 31 0.0333 0.2917
Mar 2020 24 -0.2258 0.0213
Apr 2020 20 -0.1667 -0.2308
May 2020 18 -0.1 -0.2941
Jun 2020 18 0.0 -0.25
Jul 2020 17 -0.0833 -0.34
Aug 2020 16 -0.0303 -0.4182
Sep 2020 20 0.25 -0.3103
Oct 2020 18 -0.1 -0.4
Nov 2020 13 -0.2778 -0.5667
Dec 2020 14 0.0385 -0.5645
Jan 2021 13 -0.037 -0.5667
Feb 2021 15 0.1538 -0.5161
Mar 2021 13 -0.1667 -0.4792
Apr 2021 12 -0.08 -0.425
May 2021 11 -0.087 -0.4167
Jun 2021 8 -0.2381 -0.5556
Jul 2021 9 0.125 -0.4545
Aug 2021 17 0.8889 0.0625
Sep 2021 12 -0.3235 -0.425
Oct 2021 11 -0.0435 -0.3889
Nov 2021 7 -0.3636 -0.4615
Dec 2021 5 -0.2857 -0.6296
Jan 2022 5 0.0 -0.6154
Feb 2022 5 0.0 -0.6667
Mar 2022 3 -0.4 -0.76
Apr 2022 6 1.0 -0.4783
May 2022 5 -0.1667 -0.5238
Jun 2022 6 0.1 -0.3125
Jul 2022 6 0.0909 -0.3333
Aug 2022 6 0.0 -0.6471
Sep 2022 7 0.1667 -0.3913
Oct 2022 8 0.1429 -0.2727
Nov 2022 7 -0.125 0.0
Dec 2022 11 0.5 1.1
Jan 2023 14 0.3333 1.8
Feb 2023 16 0.1071 2.1
Mar 2023 15 -0.0323 4.0
Apr 2023 10 -0.3333 0.6667
May 2023 13 0.3 1.6
Jun 2023 10 -0.2308 0.8182
Jul 2023 11 0.1 0.8333
Aug 2023 10 -0.0909 0.6667
Sep 2023 12 0.15 0.6429
Oct 2023 12 0.0435 0.5
Nov 2023 14 0.1667 1.0
Dec 2023 8 -0.4286 -0.2381
Jan 2024 9 0.125 -0.3571
Feb 2024 7 -0.2222 -0.5484
Mar 2024 6 -0.2143 -0.6333
Apr 2024 7 0.2727 -0.3
May 2024 6 -0.2143 -0.5769
Jun 2024 8 0.3636 -0.25
Jul 2024 8 0.0667 -0.2727
Aug 2024 7 -0.1875 -0.35
Sep 2024 10 0.5385 -0.1304
Oct 2024 13 0.25 0.0417
Nov 2024 13 0.0 -0.1071
Dec 2024 14 0.12 0.75
Jan 2025 13 -0.1071 0.3889
Feb 2025 9 -0.28 0.2857
Mar 2025 8 -0.1111 0.4545
Apr 2025 7 -0.125 0.0
May 2025 6 -0.1429 0.0909
Jun 2025 8 0.3333 0.0667
Jul 2025 6 -0.3125 -0.3125
Aug 2025 8 0.3636 0.1538
Sep 2025 9 0.2 -0.1
Oct 2025 10 0.1111 -0.2
Nov 2025 8 -0.2 -0.36
Dec 2025 8 0.0 -0.4286
Jan 2026 6 -0.25 -0.52
Feb 2026 7 0.1667 -0.2222
Mar 2026 7 0.0 -0.125