Zip Code: 78666 (San Marcos, TX) - 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 78666 Zip Code in February 2026 was 8.371.

You can see similar for other Texas Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 78666 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: 78666 - Market Hotness: Trend of Supply Score
Zip Code: 78666 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 62.64292408622305
October 2017 57.10020526217578
November 2017 53.75
December 2017 46.20298083747338
January 2018 41.76859835572488
February 2018 49.16655090984859
March 2018 72.00589349610608
April 2018 76.12022993282083
May 2018 60.95796943231441
June 2018 56.91019078641229
July 2018 49.38981080906567
August 2018 54.97572815533981
September 2018 61.34922647730154
October 2018 39.57390648567119
November 2018 31.002847200253086
December 2018 42.906707787201235
January 2019 42.51729818780889
February 2019 37.75152805439187
March 2019 40.429511603740906
April 2019 49.03318705430609
May 2019 38.06681758935309
June 2019 23.25690849189807
July 2019 51.66764956424874
August 2019 53.38277387457715
September 2019 45.12344485270418
October 2019 43.1706687322489
November 2019 38.82306991277177
December 2019 43.99123098385704
January 2020 54.995116506209015
February 2020 42.12063677523003
March 2020 29.952188304523723
April 2020 28.30636781950423
May 2020 34.65213496566139
June 2020 47.26207466386239
July 2020 47.235325960869226
August 2020 25.820063694267514
September 2020 49.2053142065368
October 2020 47.27486164682207
November 2020 47.88566624632198
December 2020 41.791571151472404
January 2021 61.42438840086899
February 2021 56.13727713078429
March 2021 70.15503875968993
April 2021 61.43189755529686
May 2021 42.75981524249423
June 2021 86.1259687807008
July 2021 69.50640960936711
August 2021 75.41091387245234
September 2021 70.4597177969959
October 2021 54.02091597547782
November 2021 17.976710334788937
December 2021 13.976917057902973
January 2022 12.022459539799625
February 2022 21.847379559317815
March 2022 16.773675762439808
April 2022 51.57663478935125
May 2022 44.99063670411985
June 2022 70.55659010966274
July 2022 70.64925442252478
August 2022 61.76194138255148
September 2022 24.75339347441194
October 2022 23.466192773123463
November 2022 24.798135353367183
December 2022 15.145598098310554
January 2023 10.700942892723715
February 2023 5.664717722610946
March 2023 9.833433674493278
April 2023 6.68103448275862
May 2023 8.514291485708513
June 2023 8.52300719282688
July 2023 14.187340816904065
August 2023 21.789177920783107
September 2023 17.227300967427002
October 2023 24.73715702196769
November 2023 22.365973279215286
December 2023 31.543794386202233
January 2024 46.61428445307672
February 2024 48.94633323967407
March 2024 63.27251886522113
April 2024 68.59804378202142
May 2024 51.52858176555717
June 2024 41.15006043861164
July 2024 43.09010047768078
August 2024 39.272230701261144
September 2024 26.665105020691808
October 2024 20.806761429120247
November 2024 22.681281618887013
December 2024 31.571241427140322
January 2025 31.14323258869908
February 2025 32.957964411587724
March 2025 55.64857167515319
April 2025 47.797579018157364
May 2025 46.79048550016292
June 2025 42.415795586527295
July 2025 44.31749849669273
August 2025 26.61194912747708
September 2025 16.522686025408348
October 2025 9.634719710669078
November 2025 8.619064878579195
December 2025 9.721712313679419
January 2026 11.547702084786483
February 2026 6.397931981581712
March 2026 8.370984966729647