Zip Code: 78578 (Port Isabel, TX) - Trend of Average House Listing Price (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the average house listing price for the 78578 Zip Code in February 2026 was $426,260. The month over month percentage change (MoM) was -0.0086%, and the year over year percentage change (YoY) was 0.0226%.

You can see similar for other Texas Zip Codes, and for Texas.

The chart below shows the trend of the average house listing price in the 78578 zip code. The table below shows the trend of the average house listing price, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 78578 - Trend of Average House Listing Price ($)
Zip Code: 78578 Trend of Average House Listing Price
Items per page:
1 – 10 of 116
Month Price ($) MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 208553
Sep 2016 207191
Oct 2016 202624
Nov 2016 206060
Dec 2016 205307
Jan 2017 204377
Feb 2017 212196
Mar 2017 211143
Apr 2017 215663
May 2017 218016
Jun 2017 224720
Jul 2017 228892
Aug 2017 232861 0.0173 0.1166
Sep 2017 238523 0.0243 0.1512
Oct 2017 244263 0.0241 0.2055
Nov 2017 242454 -0.0074 0.1766
Dec 2017 242518 0.0003 0.1812
Jan 2018 245343 0.0116 0.2004
Feb 2018 244227 -0.0045 0.1509
Mar 2018 262182 0.0735 0.2417
Apr 2018 258449 -0.0142 0.1984
May 2018 251820 -0.0256 0.1551
Jun 2018 253419 0.0063 0.1277
Jul 2018 250580 -0.0112 0.0948
Aug 2018 266402 0.0631 0.144
Sep 2018 269221 0.0106 0.1287
Oct 2018 271335 0.0079 0.1108
Nov 2018 270470 -0.0032 0.1156
Dec 2018 264934 -0.0205 0.0924
Jan 2019 256058 -0.0335 0.0437
Feb 2019 262212 0.024 0.0736
Mar 2019 263959 0.0067 0.0068
Apr 2019 266342 0.009 0.0305
May 2019 271198 0.0182 0.077
Jun 2019 279022 0.0289 0.101
Jul 2019 275940 -0.011 0.1012
Aug 2019 268286 -0.0277 0.0071
Sep 2019 272928 0.0173 0.0138
Oct 2019 280198 0.0266 0.0327
Nov 2019 285086 0.0174 0.054
Dec 2019 282802 -0.008 0.0674
Jan 2020 281789 -0.0036 0.1005
Feb 2020 290861 0.0322 0.1093
Mar 2020 296583 0.0197 0.1236
Apr 2020 308884 0.0415 0.1597
May 2020 303383 -0.0178 0.1187
Jun 2020 317260 0.0457 0.137
Jul 2020 323457 0.0195 0.1722
Aug 2020 329944 0.0201 0.2298
Sep 2020 324835 -0.0155 0.1902
Oct 2020 322878 -0.006 0.1523
Nov 2020 339649 0.0519 0.1914
Dec 2020 353212 0.0399 0.249
Jan 2021 337225 -0.0453 0.1967
Feb 2021 336636 -0.0017 0.1574
Mar 2021 323692 -0.0385 0.0914
Apr 2021 320029 -0.0113 0.0361
May 2021 336139 0.0503 0.108
Jun 2021 337362 0.0036 0.0634
Jul 2021 360595 0.0689 0.1148
Aug 2021 367691 0.0197 0.1144
Sep 2021 359978 -0.021 0.1082
Oct 2021 356160 -0.0106 0.1031
Nov 2021 410232 0.1518 0.2078
Dec 2021 452849 0.1039 0.2821
Jan 2022 446966 -0.013 0.3254
Feb 2022 469418 0.0502 0.3944
Mar 2022 466457 -0.0063 0.4411
Apr 2022 443470 -0.0493 0.3857
May 2022 452801 0.021 0.3471
Jun 2022 467771 0.0331 0.3866
Jul 2022 464630 -0.0067 0.2885
Aug 2022 436351 -0.0609 0.1867
Sep 2022 456859 0.047 0.2691
Oct 2022 462369 0.0121 0.2982
Nov 2022 457503 -0.0105 0.1152
Dec 2022 445788 -0.0256 -0.0156
Jan 2023 442303 -0.0078 -0.0104
Feb 2023 448380 0.0137 -0.0448
Mar 2023 444373 -0.0089 -0.0473
Apr 2023 424704 -0.0443 -0.0423
May 2023 400850 -0.0562 -0.1147
Jun 2023 408692 0.0196 -0.1263
Jul 2023 421762 0.032 -0.0923
Aug 2023 435686 0.033 -0.0015
Sep 2023 411201 -0.0562 -0.0999
Oct 2023 402483 -0.0212 -0.1295
Nov 2023 410322 0.0195 -0.1031
Dec 2023 421295 0.0267 -0.0549
Jan 2024 433818 0.0297 -0.0192
Feb 2024 438813 0.0115 -0.0213
Mar 2024 435541 -0.0075 -0.0199
Apr 2024 444555 0.0207 0.0467
May 2024 449351 0.0108 0.121
Jun 2024 433503 -0.0353 0.0607
Jul 2024 436878 0.0078 0.0358
Aug 2024 427770 -0.0208 -0.0182
Sep 2024 438754 0.0257 0.067
Oct 2024 443423 0.0106 0.1017
Nov 2024 435748 -0.0173 0.062
Dec 2024 425410 -0.0237 0.0098
Jan 2025 425425 0.0 -0.0193
Feb 2025 421834 -0.0084 -0.0387
Mar 2025 416838 -0.0118 -0.0429
Apr 2025 422870 0.0145 -0.0488
May 2025 419522 -0.0079 -0.0664
Jun 2025 418887 -0.0015 -0.0337
Jul 2025 415349 -0.0084 -0.0493
Aug 2025 420010 0.0112 -0.0181
Sep 2025 415602 -0.0105 -0.0528
Oct 2025 414971 -0.0015 -0.0642
Nov 2025 422522 0.0182 -0.0304
Dec 2025 433744 0.0266 0.0196
Jan 2026 437762 0.0093 0.029
Feb 2026 429937 -0.0179 0.0192
Mar 2026 426260 -0.0086 0.0226