Zip Code: 37421 (Chattanooga, TN) - 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 37421 Zip Code in February 2026 was 64.052.

You can see similar for other Tennessee Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 37421 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: 37421 - Market Hotness: Trend of Supply Score
Zip Code: 37421 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 68.21618244298656
October 2017 67.54991602910991
November 2017 65.71338383838385
December 2017 66.54622878895412
January 2018 76.78631107546286
February 2018 70.85011807195444
March 2018 53.98161790500245
April 2018 52.5036359858716
May 2018 80.485807860262
June 2018 70.11234461211194
July 2018 45.62536320785175
August 2018 59.50434338272866
September 2018 68.67233071265534
October 2018 63.25414781297134
November 2018 69.2375830433407
December 2018 64.84836802878438
January 2019 64.2174629324547
February 2019 58.917656754343795
March 2019 62.57706962244545
April 2019 69.56253428414702
May 2019 71.05714481717774
June 2019 64.02205338532913
July 2019 62.879234650416095
August 2019 72.11813687223523
September 2019 73.9895571456198
October 2019 78.51794474567518
November 2019 78.63559432365578
December 2019 71.9125755663323
January 2020 63.2133389144691
February 2020 81.72922447787352
March 2020 83.6631114380287
April 2020 88.05848300430459
May 2020 86.9513287548522
June 2020 77.8186734770525
July 2020 85.22156059082823
August 2020 70.35031847133759
September 2020 53.85932023799821
October 2020 59.65956733187993
November 2020 54.770912147961326
December 2020 73.40856991712221
January 2021 82.96967979597619
February 2021 87.40595692054004
March 2021 87.26630186958504
April 2021 87.0081490104773
May 2021 52.621247113163975
June 2021 82.032529199869
July 2021 84.60684364590693
August 2021 94.23311731004038
September 2021 86.9458352298589
October 2021 87.67580238009376
November 2021 91.83042212518195
December 2021 83.93974960876369
January 2022 72.77331278212044
February 2022 93.76322668990414
March 2022 92.42910647405029
April 2022 91.52235719824245
May 2022 88.62359550561798
June 2022 54.7692944340989
July 2022 34.157636380476056
August 2022 56.32743740921131
September 2022 50.290869235308996
October 2022 51.975966827451984
November 2022 54.6324814783984
December 2022 54.333984209185836
January 2023 46.65539939512542
February 2023 32.445126042365565
March 2023 56.74292594822396
April 2023 64.4088669950739
May 2023 65.12473487526512
June 2023 75.46556310966598
July 2023 66.05037260635788
August 2023 70.89640170397897
September 2023 95.57113694861098
October 2023 92.76006496281734
November 2023 71.57111449348892
December 2023 68.07575245180927
January 2024 73.39101262470203
February 2024 50.99747119977521
March 2024 33.20278918712389
April 2024 82.54308337214718
May 2024 59.86794500723589
June 2024 51.139699533759284
July 2024 50.29649151704826
August 2024 45.794842959273836
September 2024 59.975013664402276
October 2024 59.3776411832501
November 2024 67.19300935152536
December 2024 57.08561300762888
January 2025 60.947766097240475
February 2025 87.02828161265366
March 2025 78.20833692931734
April 2025 51.74848688634835
May 2025 42.978168784620394
June 2025 42.95780100658149
July 2025 71.09140108238124
August 2025 76.20526471458149
September 2025 70.497277676951
October 2025 64.20253164556962
November 2025 56.527727437477346
December 2025 65.18833981937
January 2026 58.93978144617531
February 2026 54.043137571694
March 2026 64.05158958350448