Zip Code: 49757 (Mackinac 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 49757 Zip Code in August 2020 was 47.323.

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 49757 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: 49757 - Market Hotness: Trend of Supply Score
Zip Code: 49757 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 25.592002499218996
October 2017 13.752565777197237
November 2017 35.61237373737374
October 2018 44.18049270990447
November 2018 39.07624169566593
December 2018 19.288100745309688
January 2019 8.13838550247117
June 2019 0.18826060646809653
July 2019 40.58711748902431
August 2019 29.339058027582617
September 2019 31.347901759814352
October 2019 40.130389878647044
November 2019 41.04934253352428
December 2019 16.94678801567794
January 2020 7.548486116924794
February 2020 3.118153936030378
March 2020 1.066568591393895
April 2020 0.38592845480184057
May 2020 0.19408778739922367
June 2020 0.060091639750619694
July 2020 0.007733353955610548
August 2020 0.6528662420382166
September 2020 47.32252017279322