Zip Code: 17020 (Duncannon, 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 17020 Zip Code in February 2026 was 99.474.

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 17020 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: 17020 - Market Hotness: Trend of Supply Score
Zip Code: 17020 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 21.180880974695405
October 2017 69.10493251228463
November 2017 60.25252525252526
December 2017 50.525840376798506
January 2018 26.66265623955618
February 2018 18.849840255591054
March 2018 11.688767277064478
April 2018 3.1719648175081376
May 2018 72.75518558951966
June 2018 72.83786478760885
July 2018 73.77800736101247
August 2018 65.18267756770567
September 2018 53.65204159269592
October 2018 69.18677727501257
November 2018 50.825688073394495
December 2018 18.80621948085325
January 2019 10.57001647446458
February 2019 5.713893276560675
March 2019 4.399030135088327
April 2019 9.688699945145366
May 2019 26.342868903066474
June 2019 52.867612452094406
July 2019 28.713714697595176
August 2019 35.7207910486599
September 2019 48.3529942628763
October 2019 76.3426284533953
November 2019 79.46881916417134
December 2019 55.68325250780576
January 2020 51.472024556997354
February 2020 19.665546954870745
March 2020 10.628907686649503
July 2022 8.622765583032324
August 2022 15.927539947022131
November 2022 90.81828019645384
December 2022 49.60522964598014
January 2023 21.455257071695428
February 2023 3.7477235694431137
March 2023 1.645595023078467
April 2023 0.5952380952380952
May 2023 0.5958994041005958
November 2023 77.90461694571283
December 2023 73.46973283733513
January 2024 60.157146640769845
February 2024 77.5030439261965
March 2024 98.46212627758143
May 2024 18.12590448625181
November 2024 94.2664418212479
June 2025 62.9500580720093
July 2025 83.95219482862298
August 2025 64.05649216208222
September 2025 93.2486388384755
October 2025 64.875226039783
November 2025 30.547299746284885
December 2025 29.385417431529483
January 2026 3.061303572812524
February 2026 0.815897891590597
March 2026 99.47424628275692