Zip Code: 48748 (National City, 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 48748 Zip Code in October 2025 was 16.404.

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 48748 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: 48748 - Market Hotness: Trend of Supply Score
Zip Code: 48748 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 27.26023117775695
October 2017 17.708527710393728
November 2017 23.497474747474747
December 2017 14.542873733789277
January 2018 10.915045785709511
February 2018 6.313376857896929
March 2018 4.693748684487476
April 2018 1.8353071542350579
May 2018 0.9006550218340612
June 2018 4.088280263245363
July 2018 59.856653967844
August 2018 32.5817577925396
September 2018 16.250317017499366
October 2018 10.06787330316742
November 2018 15.400189813350206
December 2018 21.903109740426626
January 2019 21.107084019769356
February 2019 16.65407595632168
March 2019 13.924489089019742
April 2019 24.410312671420737
May 2019 45.90793716128147
June 2019 44.10677065823976
July 2019 53.80381364261844
August 2019 44.67863648191517
September 2019 32.6178044220976
October 2019 30.04776658920733
November 2019 27.0732977476891
December 2019 25.29728293363449
January 2020 12.6133668201479
February 2020 7.755221264787498
March 2020 6.083118793674145
April 2020 5.707288110434912
May 2020 3.336816960286653
June 2020 4.957560279426125
July 2020 27.987007965354575
August 2020 64.05254777070064
September 2020 35.98500285271823
July 2025 90.0631389055923
August 2025 43.566992014196984
September 2025 39.9491833030853
October 2025 39.67450271247739
November 2025 16.40449438202247