Zip Code: 21045 (Columbia, 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 21045 Zip Code in February 2026 was 96.139.

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 21045 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: 21045 - Market Hotness: Trend of Supply Score
Zip Code: 21045 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 88.99718837863168
October 2017 90.66368103501897
November 2017 93.3080808080808
December 2017 88.35408736047486
January 2018 84.50638326315087
February 2018 87.41491873871371
March 2018 94.274889496948
April 2018 91.3913705935314
May 2018 96.00846069868996
June 2018 94.2764076314565
July 2018 90.92141796345322
August 2018 93.03781297904956
September 2018 91.96043621607912
October 2018 94.58898944193062
November 2018 83.55583676051882
December 2018 88.0172192238499
January 2019 94.38550247116969
February 2019 83.31845340292561
March 2019 79.21718046414964
April 2019 91.80608886450905
May 2019 98.1340467860328
June 2019 96.07342163652255
July 2019 90.30207719022346
August 2019 95.51782461618528
September 2019 97.17656159350221
October 2019 96.8822618125484
November 2019 95.85340450462179
December 2019 98.44549259283863
January 2020 93.06543881679922
February 2020 98.50299401197606
March 2020 91.75432144170651
April 2020 98.01840581861363
May 2020 97.82024484920872
June 2020 96.2217381506798
July 2020 97.5871935658495
August 2020 99.02070063694268
September 2020 98.94856956557176
October 2020 99.69813852087876
November 2020 75.48549810844892
December 2020 77.07635337682949
January 2021 89.03372060073676
February 2021 92.66206327939813
March 2021 91.66666666666666
April 2021 88.40512223515717
May 2021 94.81524249422633
June 2021 88.1781464905578
July 2021 71.0810538003432
August 2021 78.0877242415704
September 2021 92.44424214838416
October 2021 79.75117201586728
November 2021 94.33224163027657
December 2021 82.1498435054773
April 2022 77.07417937451538
May 2022 83.59082397003745
June 2022 62.704324436168015
July 2022 80.70760396406409
August 2022 90.31017687772366
September 2022 89.73948233707108
October 2022 90.72522636879073
November 2022 92.26671106301507
December 2022 94.76186433483318
January 2023 97.54492083259207
February 2023 94.52698169270583
March 2023 92.55468593216938
May 2023 96.21250378749622
September 2023 98.75743321203515
November 2023 96.35548790799933
December 2023 99.72100101454177
January 2024 98.81698596274389
May 2024 99.95477568740955
June 2024 99.29200483508893
July 2024 98.62460879591501
August 2024 99.92770503654911
September 2024 99.76575310377137
October 2024 99.48520937379946
November 2024 97.29418978997394
December 2024 97.57262849657086
January 2025 96.46024967148489
February 2025 98.58162124989255
March 2025 99.38724432553724
April 2025 97.69670477471419
May 2025 97.36884978820463
June 2025 96.96476964769649
July 2025 99.43625977149729
August 2025 99.75598935226265
September 2025 99.89110707803994
October 2025 98.35804701627487
November 2025 97.90503805726712
December 2025 95.6751597033556
January 2026 97.45020537859412
February 2026 98.71556668551578
March 2026 96.13899613899613