Zip Code: 61275 (Port Byron, IL) - 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 61275 Zip Code in January 2020 was 60.019.

You can see similar for other Illinois Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 61275 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: 61275 - Market Hotness: Trend of Supply Score
Zip Code: 61275 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 49.222118088097474
October 2017 37.749580145549544
November 2017 43.97727272727273
December 2017 65.72036905606812
January 2018 47.10246641267295
February 2018 73.41297402417001
March 2018 78.6009962814846
April 2018 63.40466791329039
May 2018 63.33242358078602
June 2018 52.55600611580137
July 2018 34.68715697036224
August 2018 37.94072560040879
September 2018 48.744610702510776
October 2018 54.518602312719956
November 2018 48.83897500790889
December 2018 51.6769468003084
January 2019 53.80560131795716
February 2019 31.234118535814847
March 2019 45.7499134049186
April 2019 44.45282501371366
May 2019 28.833093229059475
June 2019 18.657970819606
July 2019 19.02234453836577
August 2019 12.769971376528755
September 2019 34.19712499194224
October 2019 42.260521559514586
November 2019 47.012107798463745
December 2019 92.77884807015214
January 2020 85.59369331658992
February 2020 60.01898641740908