Zip Code: 21120 (Parkton, 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 21120 Zip Code in May 2020 was 65.755.

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 21120 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: 21120 - Market Hotness: Trend of Supply Score
Zip Code: 21120 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 64.61730709153389
October 2017 51.16626236238104
November 2017 33.37752525252525
December 2017 16.11071682044003
January 2018 21.502573357395896
February 2018 32.03222669815252
March 2018 65.58619238055147
April 2018 79.0151672553501
May 2018 59.16348253275109
June 2018 89.06468124709167
July 2018 81.62329695873959
August 2018 47.52810424118549
September 2018 46.36697945726604
October 2018 59.96103569632981
November 2018 82.57513445112306
December 2018 79.04780262143409
January 2019 46.642504118616145
February 2019 63.450312478538564
March 2019 49.30377554554901
April 2019 69.56253428414702
May 2019 85.86814845304247
June 2019 79.89645666644255
July 2019 49.361116571653234
August 2019 48.01587301587302
September 2019 50.048346548056465
October 2019 53.67286341337465
November 2019 51.56229657596667
December 2019 45.5590247791138
January 2020 33.11008790288824
February 2020 50.138746896451
June 2020 65.7552767971156