Zip Code: 37308 (Birchwood, 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 37308 Zip Code in February 2026 was 44.098.

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 37308 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: 37308 - Market Hotness: Trend of Supply Score
Zip Code: 37308 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 2.330521711965011
October 2017 1.7042980655594948
December 2017 33.66023614426737
January 2018 40.431789318895795
February 2018 20.16946798166412
May 2018 74.87036026200873
June 2018 70.41813468058234
July 2018 39.76883838057726
August 2018 44.15559529892693
September 2018 36.1019528277961
October 2018 42.835595776772244
November 2018 17.804492249288202
December 2018 19.847083012079157
January 2019 30.108731466227347
February 2019 18.3847263237415
May 2019 32.715922343417716
June 2019 32.50857258118739
July 2019 40.58711748902431
August 2019 22.085610200364297
September 2019 25.056404306065883
October 2019 21.30131680867545
November 2019 23.473506053899232
December 2019 41.02836643858367
January 2020 71.445514162132
February 2020 66.37943624945231
March 2020 65.29606472968003
April 2020 51.43238830339914
May 2020 50.91818453269633
June 2020 86.89251107939609
August 2022 12.201999487310946
September 2022 11.162633842003205
October 2022 2.014047558602014
December 2022 1.0272518889549198
August 2023 38.81084020665277
October 2023 86.88776818531498
April 2024 26.679087098276668
July 2024 92.0441442925383
August 2024 71.30693228371757
September 2024 33.35675802295619
October 2024 24.709950057625814
November 2024 12.24896520006132
December 2024 2.8049626261847886
December 2025 52.1036786841912
January 2026 31.636053630938545
February 2026 50.69068583892076
March 2026 44.097593033763246