Zip Code: 21030 (Cockeysville, 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 21030 Zip Code in January 2026 was 99.515.

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 21030 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: 21030 - Market Hotness: Trend of Supply Score
Zip Code: 21030 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 42.368009996875976
October 2017 78.92641662001617
November 2017 81.66035353535354
December 2017 50.525840376798506
January 2018 59.60831495220907
February 2018 60.432004445061814
March 2018 45.09226127832737
April 2018 80.53189279035944
May 2018 82.49863537117903
June 2018 83.42750781094198
July 2018 83.12132756505456
August 2018 81.81527848748084
September 2018 60.455237129089525
October 2018 52.93489190548014
November 2018 73.83739322999051
December 2018 76.13081470059112
January 2019 60.86326194398682
February 2019 55.703591786278416
March 2019 66.78905438171113
April 2019 79.7654964344487
May 2019 83.00061741098992
June 2019 84.32058091844281
July 2019 77.22953934866653
August 2019 77.05568566224304
September 2019 70.14117192032488
October 2019 71.48205525432482
November 2019 68.28537950787657
December 2019 71.9125755663323
January 2020 49.379098646574576
February 2020 37.31561267708485
March 2020 29.00331004045605
April 2020 79.53094849339467
May 2020 77.89638698118841
June 2020 75.58777135131075
July 2020 85.47676127136339
August 2020 64.05254777070064
September 2020 35.98500285271823
October 2020 50.0251551232601
November 2020 56.830601092896174
December 2020 71.75983071768648
January 2021 81.42061018229904
February 2021 59.692878491188296
May 2021 74.71131639722863
June 2021 44.427464250627665
July 2021 62.39022913091753
August 2021 51.06602798910491
September 2021 45.71688666363223
October 2021 33.988460151460515
November 2021 49.31768558951965
December 2021 32.50195618153365
January 2022 38.962897721017285
February 2022 45.05166189468442
April 2022 87.30938226932024
May 2022 41.175093632958806
June 2022 47.76536312849162
July 2022 40.05742335834028
August 2022 37.49465948901991
September 2022 44.7011213219796
October 2022 49.98730642294999
November 2022 63.173229001914585
December 2022 81.66228032939978
January 2023 64.9973314356876
February 2023 95.888047541455
March 2023 70.22877784467188
April 2023 28.58169129720854
May 2023 70.45752954247045
June 2023 55.059611784412255
July 2023 53.11763041222526
August 2023 52.08012326656395
September 2023 43.986864293955804
October 2023 89.16146679203351
November 2023 61.54236428209031
December 2023 40.9367602299628
January 2024 40.452017303787414
February 2024 82.32649620679966
March 2024 87.93581048810775
April 2024 86.55798789007918
May 2024 95.35998552821997
June 2024 69.34035572439993
July 2024 93.13127985504859
August 2024 66.62382520684392
September 2024 59.975013664402276
November 2024 76.90479840564157
December 2024 89.15003467673577
January 2025 90.02956636005256
February 2025 78.36327688472448
March 2025 96.58237680158798
April 2025 94.72091459314055
May 2025 98.33007494297817
June 2025 93.55013550135502
July 2025 96.4371617558629
August 2025 87.62200532386868
September 2025 92.37023593466425
October 2025 85.50452079566003
November 2025 74.41101848495832
December 2025 73.13312284308687
January 2026 83.9262187088274
February 2026 99.5153081832135