Zip Code: 48028 (Harsens Island, MI) - 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 48028 Zip Code in August 2025 was 15.746.

You can see similar for other Michigan Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 48028 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: 48028 - Market Hotness: Trend of Supply Score
Zip Code: 48028 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 51.52764761012184
October 2017 35.7529389811532
November 2017 21.534090909090907
December 2017 17.07206916575263
January 2018 11.443085355257002
May 2018 74.4132096069869
June 2018 63.910124310310444
July 2018 73.77800736101247
August 2018 76.32856412876853
September 2018 39.36089272127821
October 2018 16.86777275012569
November 2018 5.998101866497944
December 2018 2.0945772295039835
January 2019 3.182866556836903
February 2019 3.784080763683813
March 2019 2.916522341531001
April 2019 6.644267690619858
May 2019 20.92337243602936
June 2019 67.82760707321994
July 2019 39.099665814822096
August 2019 19.262295081967213
September 2019 21.775285244633533
October 2019 27.652982184353213
November 2019 27.9390704335373
December 2019 20.573971965721118
January 2020 12.87149434910004
February 2020 10.442529574996348
March 2020 8.091210003677823
April 2020 10.62787590915838
May 2020 9.181845326963273
June 2020 13.610756403515362
July 2020 30.49261464697239
August 2020 39.10031847133758
September 2020 22.992908957535253
October 2020 26.806976354184137
November 2020 20.243799915931064
December 2020 19.837771116205253
January 2021 26.145272504014354
February 2021 13.707100896629909
March 2021 11.103511171910625
April 2021 7.939464493597207
May 2021 9.572748267898383
June 2021 21.318633336971946
July 2021 20.106995054002223
August 2021 29.097398328167557
September 2021 8.53891670459718
October 2021 4.102055535521097
November 2021 2.7292576419213974
December 2021 6.36737089201878
January 2022 6.682814048221954
February 2022 3.846632640358521
May 2022 15.84737827715356
June 2022 25.656941858059177
July 2022 9.15995183847365
August 2022 49.95300350337521
September 2022 30.031194671612848
October 2022 8.513159008208513
November 2022 3.1132939315741277
December 2022 2.198828423465489
January 2023 1.5210816580679596
June 2023 17.065720760666075
July 2023 42.599754740118854
October 2023 45.6620223950765
June 2025 70.12001548586915
July 2025 33.4786530366807
August 2025 24.622892635314997
September 2025 15.745916515426497