Zip Code: 21131 (Phoenix, 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 21131 Zip Code in October 2025 was 95.295.

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 21131 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: 21131 - Market Hotness: Trend of Supply Score
Zip Code: 21131 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 24.92346141830678
October 2017 39.1428749144741
November 2017 64.88636363636363
December 2017 53.16472030453577
January 2018 38.8877748813582
February 2018 25.33685234060286
March 2018 9.40854556935382
April 2018 72.41498718747835
May 2018 79.08024017467248
June 2018 76.23479359170379
July 2018 57.5192096597146
August 2018 32.5817577925396
September 2018 27.409332995181334
October 2018 16.08848667672197
November 2018 55.21670357481809
December 2018 66.49318941146235
January 2019 65.87149917627677
February 2019 74.15012705171348
March 2019 46.77519916868722
April 2019 52.48902907295666
May 2019 86.56788090828017
June 2019 65.05748672090364
July 2019 71.98741891094947
August 2019 39.064532916991936
September 2019 38.67079223876749
October 2019 61.49625613219726
November 2019 67.41309725296185
December 2019 33.043247193250515
January 2020 21.85014650481373
February 2020 20.36658390536001
March 2020 20.228025009194557
April 2020 81.7426154074514
May 2020 51.567632128993736
June 2020 41.53834597761586
July 2020 35.13262702033872
August 2020 16.5843949044586
September 2020 8.25658162849458
October 2020 20.526580580244843
November 2020 71.03825136612022
December 2020 65.00617175101394
September 2021 43.359126081019575
October 2021 75.78434908041832
November 2021 43.595342066957784
June 2022 68.83923029174426
July 2022 46.16097063999259
October 2024 97.4490971955436
November 2024 89.94327763299096
October 2025 99.97106690777576
November 2025 95.2953968829286