Zip Code: 78578 (Port Isabel, 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 78578 Zip Code in February 2026 was 22.772.

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 78578 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: 78578 - Market Hotness: Trend of Supply Score
Zip Code: 78578 - Market Hotness: Trend of Supply Score
Items per page:
0 of 0
Month Supply Score
September 2017 3.8175570134333023
October 2017 12.272190085214902
November 2017 12.089646464646464
December 2017 15.007419833537647
January 2018 19.156473497760846
February 2018 37.22739269342964
March 2018 37.725391145723705
April 2018 28.64464298081585
May 2018 24.4132096069869
June 2018 15.741540916040684
July 2018 6.0308645961128695
August 2018 3.7046499744506898
September 2018 3.0116662439766677
October 2018 5.077928607340372
November 2018 7.605188231572287
December 2018 7.902852737085582
January 2019 13.772652388797363
February 2019 15.658265229036466
March 2019 39.09941115344648
April 2019 37.52057048820625
May 2019 21.49962269328394
June 2019 11.611645263228668
July 2019 6.74923006356071
August 2019 4.163413999479573
September 2019 4.802423773609231
October 2019 12.535502194681126
November 2019 21.96979559953131
December 2019 18.421577094266926
January 2020 25.938328449839542
February 2020 35.93544618080911
March 2020 39.95586612725266
April 2020 23.638117856612737
May 2020 17.340997312630634
June 2020 8.87853977315406
July 2020 5.568014848039595
August 2020 3.5429936305732483
September 2020 1.7605346809030893
October 2020 3.5887975851081673
November 2020 2.3371164354770912
December 2020 9.19590901075648
January 2021 18.62661754982526
February 2021 33.15469442440482
March 2021 30.950752393980846
April 2021 24.761350407450525
May 2021 87.12471131639722
June 2021 29.03613142670014
July 2021 4.431210255374987
August 2021 1.6248708556400864
September 2021 2.2940373236231224
October 2021 2.7767760548142806
November 2021 1.1098981077147014
December 2021 3.374413145539906
January 2022 25.63029835957283
February 2022 40.37096974978215
March 2022 24.264312466559655
April 2022 27.100025846471958
May 2022 20.353464419475657
June 2022 21.104903786468032
July 2022 46.80003704732796
August 2022 17.901392805263608
September 2022 10.268948655256724
October 2022 6.778370144706779
November 2022 7.808207774910514
December 2022 8.642499363273624
January 2023 21.455257071695428
February 2023 48.394517396721945
March 2023 33.76480032109171
April 2023 22.054597701149426
May 2023 22.452277547722453
June 2023 22.110552763819097
July 2023 17.856805961701728
August 2023 11.77376960029004
September 2023 8.227567231738705
October 2023 12.43696042396786
November 2023 14.865550481988837
December 2023 18.413933040243492
January 2024 31.385185839145407
February 2024 25.69073709843589
March 2024 21.67351227433375
April 2024 12.892408011178388
May 2024 9.768451519536903
June 2024 5.750302193058194
July 2024 9.520672047438643
August 2024 4.329665033336011
September 2024 5.387678613258375
October 2024 8.244333461390703
November 2024 17.03970565690633
December 2024 19.642444324574246
January 2025 14.339684625492774
February 2025 14.501848190492565
March 2025 13.851730387503236
April 2025 10.743106926698049
May 2025 5.531117627891821
June 2025 2.408052651955091
July 2025 1.3905592303066747
August 2025 1.715468796214138
September 2025 3.4700544464609804
October 2025 5.157323688969258
November 2025 20.50018122508155
December 2025 26.984360085175123
January 2026 32.93032628070991
February 2026 25.535180547701753
March 2026 22.771707878090858