Zip Code: 21207 (Gwynn Oak, 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 21207 Zip Code in February 2026 was 86.404.

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 21207 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: 21207 - Market Hotness: Trend of Supply Score
Zip Code: 21207 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 80.89971883786316
October 2017 69.10493251228463
November 2017 79.36868686868686
December 2017 78.19214142847926
January 2018 81.47182674954882
February 2018 77.75385470204195
March 2018 60.59776889075984
April 2018 50.737585705381264
May 2018 55.41757641921398
June 2018 73.19683573755235
July 2018 71.85381287531479
August 2018 81.81527848748084
September 2018 61.66624397666751
October 2018 68.71543489190547
November 2018 66.44732679531793
December 2018 74.64662040606528
January 2019 91.10378912685337
February 2019 84.58210287754962
March 2019 58.316591617596124
April 2019 58.41332967635765
May 2019 57.94745146463607
June 2019 49.08222954346803
July 2019 47.43463731079222
August 2019 59.30913348946136
September 2019 68.33623412621672
October 2019 73.91556932610379
November 2019 77.4248144772816
December 2019 84.95980867601143
January 2020 88.27961490163248
February 2020 84.83277347743538
March 2020 64.14858403824935
April 2020 57.43654445598931
May 2020 65.15377724693938
June 2020 79.86178922857357
July 2020 48.171061789498104
August 2020 55.62898089171975
September 2020 49.2053142065368
October 2020 80.15260774777796
November 2020 77.04918032786885
December 2020 63.48086757185681
January 2021 75.97052989515444
February 2021 80.7997526538184
March 2021 63.372093023255815
April 2021 83.43422584400466
May 2021 54.84988452655889
June 2021 54.50278353891497
July 2021 81.52821237508832
August 2021 51.06602798910491
September 2021 61.929904415111515
October 2021 87.91922106022358
November 2021 79.73071324599708
December 2021 74.1001564945227
January 2022 58.97831113068369
February 2022 66.91149010332379
March 2022 69.35527019796682
April 2022 67.6919100542776
May 2022 58.81320224719101
June 2022 61.1835298986137
July 2022 55.682133926090586
August 2022 80.18456805947193
September 2022 89.73948233707108
October 2022 73.22501480917323
November 2022 82.61050528594023
December 2022 87.66448764750828
January 2023 89.86835082725494
February 2023 91.0668072462379
March 2023 59.181216134858516
April 2023 77.33990147783251
May 2023 74.98232501767498
June 2023 70.96265641935166
July 2023 66.55032544099613
August 2023 74.38593310976162
September 2023 72.63690423360256
October 2023 89.16146679203351
November 2023 83.78149839337054
December 2023 90.64930672979371
January 2024 88.70839586827934
February 2024 97.55549311604383
March 2024 89.21577992167352
April 2024 95.08150908244062
May 2024 74.19500723589
June 2024 73.70920393714384
July 2024 88.37917970680283
August 2024 95.91131817816691
September 2024 77.35613336456625
October 2024 87.96772954283519
November 2024 89.94327763299096
December 2024 82.07598058102798
January 2025 92.52628120893561
February 2025 94.99699131780281
March 2025 91.41279019590921
April 2025 81.6661062542031
May 2025 84.8892147279244
June 2025 93.55013550135502
July 2025 98.87251954299458
August 2025 91.06773144040224
September 2025 83.73865698729583
October 2025 90.95117540687161
November 2025 89.17723812975716
December 2025 95.6751597033556
January 2026 91.14934511353948
February 2026 95.1207690443493
March 2026 86.40433746816726