Zip Code: 21042 (Ellicott City, 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 21042 Zip Code in February 2026 was 95.17.

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 21042 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: 21042 - Market Hotness: Trend of Supply Score
Zip Code: 21042 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 72.63980006248048
October 2017 72.24606580829757
November 2017 70.37247474747474
December 2017 83.2182721465901
January 2018 78.2300648352383
February 2018 64.30059730518127
March 2018 68.41366729811268
April 2018 88.55876445737239
May 2018 89.21943231441048
June 2018 76.53393604999003
July 2018 77.7942790727707
August 2018 81.19570771589167
September 2018 81.8665990362668
October 2018 78.2051282051282
November 2018 76.32394811768428
December 2018 75.68105885376511
January 2019 64.2174629324547
February 2019 61.84327999450587
March 2019 55.684101143055074
April 2019 68.31459133296764
May 2019 95.47231940728544
June 2019 93.5386270422914
July 2019 79.57538824454492
August 2019 82.08430913348947
September 2019 70.14117192032488
October 2019 60.805577072037174
November 2019 53.77555005858612
December 2019 61.90128213645121
January 2020 82.91474815124877
February 2020 71.84898495691544
March 2020 55.23354174328797
April 2020 86.22532284399584
May 2020 90.9002687369364
June 2020 73.9052054382934
July 2020 65.52470806588818
August 2020 71.82324840764332
September 2020 84.44861031868938
October 2020 71.69210129129632
November 2020 51.91256830601093
December 2020 69.1588785046729
January 2021 58.84575422688203
February 2021 31.505719880449345
March 2021 22.9594163246694
April 2021 57.61350407450524
May 2021 85.73903002309468
June 2021 88.1781464905578
July 2021 55.687897446250126
August 2021 78.79214802291725
September 2021 86.9458352298589
October 2021 82.18535881716552
November 2021 58.669941775836975
December 2021 58.19640062597809
January 2022 41.34096664097765
April 2022 90.47557508400104
May 2022 59.39840823970037
June 2022 90.23380922822264
July 2022 91.96999166435121
August 2022 76.80082030248654
September 2022 98.35595649607959
October 2022 70.71168655327071
November 2022 49.11346041788063
December 2022 61.12573223533408
January 2023 40.58886319160292
February 2023 93.52055976229272
March 2023 73.56010435480634
April 2023 79.45402298850574
May 2023 95.61660438339563
June 2023 89.26002561828751
July 2023 87.68984058107726
August 2023 94.50738693011873
September 2023 76.88825774385373
October 2023 91.81126592016412
November 2023 89.13411128023
December 2023 86.27832262428137
January 2024 80.44495453341574
February 2024 93.40638756204926
March 2024 96.02636354952718
April 2024 96.59990684676293
May 2024 88.34117221418234
June 2024 95.28578829217751
July 2024 77.88667435348377
August 2024 85.79002329504378
September 2024 81.87709846177871
October 2024 95.8816749903957
November 2024 98.4363023148858
December 2024 93.78130538645296
January 2025 94.91622864651774
February 2025 98.00567351500042
March 2025 92.59514973677398
April 2025 99.04169468728985
May 2025 99.79635060280222
June 2025 99.4889663182346
July 2025 95.72309079975948
August 2025 98.43241644483881
September 2025 93.502722323049
October 2025 95.29837251356238
November 2025 97.57883291047482
December 2025 94.34613407739188
January 2026 97.73696039680695
February 2026 95.86396316342193
March 2026 95.16963772282921