Zip Code: 18015 (Bethlehem, 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 18015 Zip Code in February 2026 was 51.655.

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 18015 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: 18015 - Market Hotness: Trend of Supply Score
Zip Code: 18015 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 37.55076538581693
October 2017 34.6768675747963
November 2017 53.503787878787875
December 2017 53.16472030453577
January 2018 29.97794265089232
February 2018 27.663564383942212
March 2018 37.06588086718586
April 2018 54.65059907195789
May 2018 45.5240174672489
June 2018 61.90254603470052
July 2018 71.85381287531479
August 2018 69.18753193663771
September 2018 79.2036520415927
October 2018 63.25414781297134
November 2018 56.22271433090794
December 2018 46.71035723464405
January 2019 44.105436573311366
February 2019 43.8980839228075
March 2019 33.010045029442324
April 2019 46.83900164563906
May 2019 53.96858064073541
June 2019 47.64338062260472
July 2019 45.50160539938405
August 2019 49.173822534478276
September 2019 53.56152904015986
October 2019 66.65375677769171
November 2019 67.41309725296185
December 2019 60.12090613166811
January 2020 36.200641830612525
February 2020 21.476559076968016
March 2020 33.73299006987863
April 2020 70.44678640344367
May 2020 57.703792176769184
June 2020 48.9596634868174
July 2020 83.46608924290464
August 2020 68.70222929936305
September 2020 65.71032684000326
October 2020 48.205601207445916
November 2020 71.03825136612022
December 2020 75.3747134544172
January 2021 58.84575422688203
February 2021 28.620014428527256
March 2021 33.21933424532604
April 2021 53.923166472642606
May 2021 52.21709006928407
June 2021 76.07248117017792
July 2021 90.16856767941859
August 2021 87.56457217995678
September 2021 88.77560309512972
October 2021 64.40677966101694
November 2021 70.04184861717613
December 2021 64.21165884194053
January 2022 51.7560277441374
February 2022 35.95169924063239
March 2022 45.34510433386838
April 2022 69.59162574308607
May 2022 84.12921348314607
June 2022 58.21435961100766
July 2022 78.36436047050105
August 2022 82.38058617448517
September 2022 70.48309586038278
October 2022 47.177794702547175
November 2022 54.6324814783984
December 2022 46.30274216826556
January 2023 19.916384984878135
February 2023 34.81261382152784
March 2023 83.69456150913105
April 2023 8.097290640394089
May 2023 99.22230077769922
June 2023 96.72874174795545
July 2023 65.27686067352137
August 2023 72.86322849632919
September 2023 36.34507854797195
October 2023 27.378408410975297
November 2023 42.09369186538136
December 2023 36.202231991883664
January 2024 47.88558311997881
February 2024 62.957759670319376
March 2024 36.125704460788995
April 2024 28.877503493246394
May 2024 28.545586107091168
June 2024 93.80935935071662
July 2024 82.34228298468128
August 2024 84.82609044903205
September 2024 55.11829468259546
October 2024 53.39992316557818
November 2024 84.76927793959834
December 2024 94.52878169068352
January 2025 77.669185282523
February 2025 30.26734290380813
March 2025 74.00535082419954
April 2025 72.53698722259583
May 2025 51.287064190289996
June 2025 88.30816879597367
July 2025 98.91761876127481
August 2025 96.71694764862467
September 2025 94.72958257713249
October 2025 96.16636528028934
November 2025 85.58173251177963
December 2025 89.20625596592996
January 2026 90.14957761760832
February 2026 76.93674771790936
March 2026 51.6553027191325