Zip Code: 21661 (Rock Hall, 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 21661 Zip Code in February 2026 was 35.825.

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 21661 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: 21661 - Market Hotness: Trend of Supply Score
Zip Code: 21661 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 8.216182442986566
October 2017 10.903775580021149
November 2017 12.809343434343434
December 2017 13.994451254919671
January 2018 15.52703696276987
February 2018 7.452423947770524
March 2018 7.016066792955869
April 2018 5.062677470738971
May 2018 2.817958515283843
June 2018 6.281991624011169
July 2018 6.308516820559179
August 2018 8.986969851814
September 2018 7.3674866852650265
October 2018 4.807692307692308
November 2018 8.6618158810503
December 2018 6.193780519146749
January 2019 5.897858319604613
February 2019 18.954742119359935
March 2019 18.08105299618982
April 2019 22.44240263302249
May 2019 17.99410029498525
June 2019 21.717205674712567
July 2019 19.02234453836577
August 2019 10.512620348685923
September 2019 6.149680912782827
October 2019 4.0214304156984255
November 2019 5.057935164692098
December 2019 9.639274563209991
January 2020 7.164783033347286
February 2020 6.090258507375493
March 2020 6.458256712026481
April 2020 7.837316312898916
May 2020 8.151687070767395
June 2020 10.929166979643957
July 2020 12.365632975021267
August 2020 4.3869426751592355
September 2020 10.579509332463934
October 2020 5.098104980714405
November 2020 6.927280369903322
December 2020 19.467466055369425
January 2021 25.68244072919618
February 2021 25.445738431412966
March 2021 11.616507067943456
April 2021 14.540162980209544
May 2021 15.946882217090069
June 2021 17.705490666957754
July 2021 12.667810638942163
August 2021 10.650887573964498
September 2021 40.810195721438326
October 2021 23.088712585647315
November 2021 10.298398835516739
December 2021 5.174100156494522
August 2023 28.18816278437415
September 2023 29.30682524185675
October 2023 13.838789640140185
July 2024 23.34870696755065
August 2024 60.14940959113182
September 2024 39.19731396892325
October 2024 56.69611986169804
November 2024 82.23210179365323
December 2024 51.71457193496185
January 2025 19.103153745072273
February 2025 15.309894266311355
March 2025 18.089237939069648
April 2025 9.994956287827842
May 2025 32.50244379276637
June 2025 15.62524196670538
July 2025 5.396873120865905
August 2025 12.40757172434191
September 2025 8.740471869328493
October 2025 43.79023508137433
November 2025 60.66690830010874
December 2025 49.52639694544387
January 2026 44.36952646671317
February 2026 73.02690039583165
March 2026 35.82518688901668