Zip Code: 21157 (Westminster, 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 21157 Zip Code in February 2026 was 85.164.

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 21157 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: 21157 - Market Hotness: Trend of Supply Score
Zip Code: 21157 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 55.28897219618869
October 2017 64.00447844747154
November 2017 69.10353535353535
December 2017 51.20330343893155
January 2018 57.950671746541005
February 2018 80.0805667453813
March 2018 78.27124114221567
April 2018 79.0151672553501
May 2018 64.35589519650655
June 2018 65.24629395732234
July 2018 60.36030218893266
August 2018 49.16326009197752
September 2018 43.96398681207202
October 2018 47.42961287078934
November 2018 64.26447326795318
December 2018 59.02081727062451
January 2019 38.510708401976935
February 2019 70.44159055009959
March 2019 77.0280568063734
April 2019 64.48848052660449
May 2019 58.688344652534816
June 2019 69.36058629731728
July 2019 75.32271803944695
August 2019 92.36273744470466
September 2019 75.6011087475021
October 2019 58.15904983217144
November 2019 40.87358416872803
December 2019 45.5590247791138
January 2020 73.60820426956886
February 2020 83.08748356944648
March 2020 76.31482162559765
April 2020 46.615704319430016
May 2020 33.151687070767395
June 2020 73.9052054382934
July 2020 77.08607222952595
August 2020 85.37420382165605
September 2020 79.2403618876844
October 2020 58.737212812342776
November 2020 59.436738125262714
December 2020 69.555633926997
January 2021 84.97213563804667
February 2021 84.03586519633103
March 2021 47.355221158230734
April 2021 82.30500582072176
May 2021 68.1986143187067
June 2021 46.828948804715644
July 2021 63.80337135358837
August 2021 57.83788860711938
September 2021 64.41511151570323
October 2021 60.31373963216733
November 2021 76.90138282387191
December 2021 82.1498435054773
January 2022 72.77331278212044
February 2022 81.5386530561434
March 2022 70.27822364901016
April 2022 74.69630395451021
May 2022 72.01544943820225
June 2022 95.40657976412167
July 2022 85.2088543113828
August 2022 75.32256686319747
September 2022 79.45367169715875
October 2022 86.75636794448675
November 2022 83.80088237742446
December 2022 95.5514050428729
January 2023 84.80697384806973
February 2023 59.86772740343142
March 2023 47.23058398555087
April 2023 75.35919540229885
May 2023 80.7898192101808
June 2023 50.615824219134886
July 2023 33.07235166493727
August 2023 88.69754373243904
September 2023 74.41199964498092
October 2023 78.57936575775707
November 2023 87.37527481819718
December 2023 85.06932702062902
January 2024 70.42464906859716
February 2024 84.91149199213262
March 2024 55.74553443499857
April 2024 77.00978108989287
May 2024 94.91678726483357
June 2024 66.41340010360905
July 2024 53.30258606489869
August 2024 87.1636276006105
September 2024 74.8887327242914
October 2024 85.67806377257011
November 2024 94.73401808983597
December 2024 82.07598058102798
January 2025 71.61629434954008
February 2025 69.39740393707557
March 2025 64.60688702856649
April 2025 97.69670477471419
May 2025 96.44835451287064
June 2025 93.83662408052652
July 2025 82.41130487071557
August 2025 93.75924282756581
September 2025 89.00181488203268
October 2025 89.26582278481013
November 2025 87.11852120333454
December 2025 75.5121521403921
January 2026 78.81112919476091
February 2026 78.39890136521528
March 2026 85.16388729154687