Zip Code: 21758 (Knoxville, 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 21758 Zip Code in December 2019 was 52.735.

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 21758 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: 21758 - Market Hotness: Trend of Supply Score
Zip Code: 21758 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 78.29428303655108
October 2017 74.17428624743422
November 2017 52.89141414141414
December 2017 63.94606103619588
January 2018 73.97232805293764
February 2018 54.64647867759411
May 2018 72.75518558951966
July 2018 45.15400012914057
August 2018 65.18267756770567
October 2018 44.18049270990447
November 2018 64.69471686175261
December 2018 80.67977383705988
July 2019 86.06251228621977
September 2019 50.048346548056465
October 2019 57.05525432481281
November 2019 54.016404114047646
December 2019 35.454726632564935
January 2020 52.734756522952416