Zip Code: 21788 (Thurmont, 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 21788 Zip Code in December 2025 was 57.212.

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 21788 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: 21788 - Market Hotness: Trend of Supply Score
Zip Code: 21788 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 17.83192752264917
October 2017 7.694221558748522
November 2017 33.37752525252525
December 2017 90.18001161365248
January 2018 88.81090836174053
February 2018 77.75385470204195
March 2018 86.03802708201782
April 2018 95.56063439296351
May 2018 92.43313318777294
June 2018 78.2756099182344
July 2018 84.56124491509007
August 2018 58.64844149207972
September 2018 62.28125792543749
October 2018 69.18677727501257
November 2018 87.92787092692186
December 2018 83.75738884605501
January 2019 57.33772652388798
February 2019 35.18302314401483
March 2019 25.7499134049186
April 2019 43.417443773998905
May 2019 71.05714481717774
June 2019 72.426544745512
July 2019 67.58403774326716
August 2019 58.93182409575852
September 2019 57.287436343711725
October 2019 54.6281951975213
November 2019 50.21481577919542
December 2019 47.14674815651365
January 2020 68.03404492814288
February 2020 54.089382211187385
March 2020 39.95586612725266
April 2020 70.10538815496513
May 2020 14.720812182741117
June 2020 23.300533313302786
October 2020 95.68170384034882
November 2020 75.48549810844892
December 2020 98.86263445600423
January 2021 97.02465287616889
July 2021 78.97446250126173
August 2021 57.05832628909552
September 2021 61.929904415111515
October 2021 75.78434908041832
January 2024 84.55901827491834
March 2025 92.11184948649348
April 2025 98.15904505716207
May 2025 79.20332355816227
June 2025 57.282229965156795
July 2025 80.48707155742633
August 2025 60.91393078970718
September 2025 99.72413793103449
October 2025 98.35804701627487
November 2025 79.9710039869518
December 2025 58.322931199060136
January 2026 57.21150120127102