Zip Code: 21918 (Conowingo, MD) - 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 21918 Zip Code in October 2024 was 0.161.

You can see similar for other Maryland Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 21918 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: 21918 - Market Hotness: Trend of Supply Score
Zip Code: 21918 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 44.27366447985005
October 2017 38.81943148597375
November 2017 46.78030303030303
December 2017 33.48603135686174
January 2018 81.47182674954882
February 2018 73.41297402417001
March 2018 59.55237493860942
April 2018 48.09197312833299
May 2018 42.67876637554585
June 2018 57.77438011035033
July 2018 86.36275585975334
August 2018 56.80889115993868
September 2018 26.369515597260968
October 2018 34.10005027652087
November 2018 35.32426447326795
December 2018 87.2526342842457
January 2019 67.45963756177925
May 2024 99.19500723589
September 2024 0.6402748496915749
November 2024 0.16096887934999232