Zip Code: 48221 (Detroit, 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 48221 Zip Code in February 2026 was 46.521.

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 48221 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: 48221 - Market Hotness: Trend of Supply Score
Zip Code: 48221 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 87.01655732583568
October 2017 88.36225663992037
November 2017 72.85353535353535
December 2017 84.4118975417769
January 2018 92.5272374841254
February 2018 86.20641755799416
March 2018 76.06819616922753
April 2018 72.41498718747835
May 2018 66.10262008733623
June 2018 56.91019078641229
July 2018 73.77800736101247
August 2018 65.98748083801738
September 2018 76.23636824752727
October 2018 82.81799899446959
November 2018 81.955077507118
December 2018 88.96170650218453
January 2019 73.17957166392091
February 2019 92.89197170524002
March 2019 71.95012123311396
April 2019 65.72956664838179
May 2019 66.20017836317487
June 2019 68.45962482350568
July 2019 55.65821374746085
August 2019 73.15248503773094
September 2019 68.33623412621672
October 2019 64.98192615543506
November 2019 61.29410233042572
December 2019 88.06882349033415
January 2020 88.64238872610576
February 2020 68.92799766321016
March 2020 52.7620448694373
April 2020 70.44678640344367
May 2020 62.533592117049864
June 2020 46.210470968226545
July 2020 54.295878122341655
August 2020 54.47452229299363
September 2020 56.035536718558966
October 2020 59.28224048297837
November 2020 63.37116435477091
December 2020 49.31229060130489
January 2021 64.55086426749787
February 2021 73.00834793362877
March 2021 68.0688554491564
April 2021 92.9685681024447
May 2021 87.4133949191686
June 2021 82.032529199869
July 2021 54.05269001715959
August 2021 71.89818728280267
September 2021 66.54528903049614
October 2021 73.6296429859358
November 2021 55.740538573508005
December 2021 85.97417840375586
January 2022 69.55851590884069
February 2022 68.69164695630523
March 2022 51.631888710540395
April 2022 62.7681571465495
May 2022 59.39840823970037
June 2022 30.674529277881234
July 2022 46.80003704732796
August 2022 33.82893275228574
September 2022 44.7011213219796
October 2022 63.58635863586358
November 2022 85.0578539915092
December 2022 61.541726801935646
January 2023 35.60754314178972
February 2023 61.938081088852684
March 2023 67.26871362632953
April 2023 60.97085385878489
May 2023 60.36763963236037
June 2023 35.905015272440636
July 2023 36.855013677954915
August 2023 45.06480558325025
September 2023 51.060619508298565
October 2023 59.23583212240362
November 2023 70.70015220700152
December 2023 69.3439296584376
January 2024 84.55901827491834
February 2024 86.77531141706471
March 2024 56.42372719457446
April 2024 51.07591988821611
May 2024 43.12590448625181
June 2024 55.387670523225694
July 2024 64.34689507494646
August 2024 68.23841272391357
September 2024 62.450222534551415
October 2024 62.497118709181706
November 2024 84.76927793959834
December 2024 83.87146489943747
January 2025 79.62385019710906
February 2025 79.91059915756898
March 2025 62.293950116509876
April 2025 57.195696032279756
May 2025 50.57021831215379
June 2025 50.03484320557491
July 2025 58.71918220084186
August 2025 66.99940845903579
September 2025 63.93466424682396
October 2025 66.79204339963833
November 2025 64.9728162377673
December 2025 73.68382406931492
January 2026 85.0654886460513
February 2026 64.2297439211568
March 2026 46.52098907418056