Zip Code: 21230 (Baltimore, 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 21230 Zip Code in February 2026 was 80.44.

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 21230 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: 21230 - Market Hotness: Trend of Supply Score
Zip Code: 21230 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 54.5204623555139
October 2017 55.09734403184674
November 2017 68.40277777777779
December 2017 54.97774049938706
January 2018 57.950671746541005
February 2018 59.91804417280178
March 2018 56.051357608924434
April 2018 68.58508206939538
May 2018 56.19541484716157
June 2018 55.27487868111414
July 2018 42.590559824368825
August 2018 45.10091977516607
September 2018 59.960689830078614
October 2018 61.0168426344897
November 2018 73.83739322999051
December 2018 64.84836802878438
January 2019 61.83855024711696
February 2019 63.14813543025891
March 2019 68.3893314859716
April 2019 69.56253428414702
May 2019 65.45928517527612
June 2019 47.64338062260472
July 2019 45.50160539938405
August 2019 42.733541504033305
September 2019 41.86811061690195
October 2019 46.84998709011102
November 2019 51.054550188777505
December 2019 53.68365109944862
January 2020 46.69317706153202
February 2020 45.910617788812615
March 2020 49.08422214049283
April 2020 47.7066943743506
May 2020 47.2006569125112
June 2020 54.292796514684895
July 2020 45.093186915165106
August 2020 57.21337579617835
September 2020 60.39612030320319
October 2020 63.64246184806306
November 2020 52.5010508617066
December 2020 43.4050432022571
January 2021 44.69632568244073
February 2021 37.266824693393794
March 2021 42.80665754673962
April 2021 55.77415599534342
May 2021 49.08775981524249
June 2021 48.7937998035149
July 2021 55.102452811143635
August 2021 43.8621207851977
September 2021 31.533909877105142
October 2021 24.66642625315543
November 2021 26.40101892285298
December 2021 17.16549295774648
January 2022 15.09413189474843
February 2022 22.644093115896922
March 2022 32.74478330658106
April 2022 22.58981649004911
May 2022 47.109082397003746
June 2022 39.19925512104283
July 2022 41.159581365194036
August 2022 37.49465948901991
September 2022 70.48309586038278
October 2022 65.13497503596514
November 2022 52.40156497128111
December 2022 53.136938619577215
January 2023 67.50578188934352
February 2023 72.93204255727021
March 2023 76.91149909692956
April 2023 50.23604269293924
May 2023 45.33885466114534
June 2023 69.68174204355108
July 2023 67.40873502499764
August 2023 48.844375963020035
September 2023 54.37117245051921
October 2023 52.978887084366185
November 2023 59.5552173177744
December 2023 55.91816029759892
January 2024 52.34395691710073
February 2024 43.90746464362649
March 2024 50.01432801604738
April 2024 73.54448067070331
May 2024 45.81222865412446
June 2024 48.04869625280608
July 2024 47.15862296162082
August 2024 53.89991163948912
September 2024 64.87858202545483
October 2024 62.497118709181706
November 2024 57.58086769891154
December 2024 50.14255991369346
January 2025 66.65571616294349
February 2025 72.01925556606207
March 2025 61.83654095106586
April 2025 76.70645595158037
May 2025 71.2772890192245
June 2025 56.86411149825784
July 2025 75.44347564642213
August 2025 74.37148772552499
September 2025 74.88929219600726
October 2025 76.47016274864377
November 2025 62.522653135193906
December 2025 47.631984727219326
January 2026 35.83662714097497
February 2026 81.33936505372002
March 2026 80.44031873819108