Zip Code: 78666 (San Marcos, 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 78666 Zip Code in February 2026 was $451,415. The month over month percentage change (MoM) was -0.0459%, and the year over year percentage change (YoY) was -0.1472%.

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 78666 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: 78666 - Trend of Average House Listing Price ($)
Zip Code: 78666 Trend of Average House Listing Price
Items per page:
1 – 10 of 116
Month Price ($) MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 377636
Sep 2016 358479
Oct 2016 371658
Nov 2016 379625
Dec 2016 349218
Jan 2017 356865
Feb 2017 344433
Mar 2017 356675
Apr 2017 345684
May 2017 351798
Jun 2017 358714
Jul 2017 368740
Aug 2017 336148 -0.0884 -0.1099
Sep 2017 332042 -0.0122 -0.0737
Oct 2017 321183 -0.0327 -0.1358
Nov 2017 314909 -0.0195 -0.1705
Dec 2017 325987 0.0352 -0.0665
Jan 2018 358415 0.0995 0.0043
Feb 2018 355026 -0.0095 0.0308
Mar 2018 341337 -0.0386 -0.043
Apr 2018 348462 0.0209 0.008
May 2018 373242 0.0711 0.061
Jun 2018 362318 -0.0293 0.01
Jul 2018 360625 -0.0047 -0.022
Aug 2018 351529 -0.0252 0.0458
Sep 2018 344981 -0.0186 0.039
Oct 2018 341120 -0.0112 0.0621
Nov 2018 326400 -0.0432 0.0365
Dec 2018 334472 0.0247 0.026
Jan 2019 348171 0.041 -0.0286
Feb 2019 351227 0.0088 -0.0107
Mar 2019 350631 -0.0017 0.0272
Apr 2019 350348 -0.0008 0.0054
May 2019 348805 -0.0044 -0.0655
Jun 2019 351226 0.0069 -0.0306
Jul 2019 358588 0.021 -0.0056
Aug 2019 366849 0.023 0.0436
Sep 2019 373775 0.0189 0.0835
Oct 2019 376675 0.0078 0.1042
Nov 2019 378475 0.0048 0.1595
Dec 2019 362427 -0.0424 0.0836
Jan 2020 344527 -0.0494 -0.0105
Feb 2020 347211 0.0078 -0.0114
Mar 2020 343473 -0.0108 -0.0204
Apr 2020 343898 0.0012 -0.0184
May 2020 333129 -0.0313 -0.0449
Jun 2020 346903 0.0413 -0.0123
Jul 2020 349456 0.0074 -0.0255
Aug 2020 349191 -0.0008 -0.0481
Sep 2020 342565 -0.019 -0.0835
Oct 2020 345424 0.0083 -0.083
Nov 2020 326950 -0.0535 -0.1361
Dec 2020 332605 0.0173 -0.0823
Jan 2021 334918 0.007 -0.0279
Feb 2021 349547 0.0437 0.0067
Mar 2021 384289 0.0994 0.1188
Apr 2021 403780 0.0507 0.1741
May 2021 442452 0.0958 0.3282
Jun 2021 439685 -0.0063 0.2675
Jul 2021 458666 0.0432 0.3125
Aug 2021 486815 0.0614 0.3941
Sep 2021 508428 0.0444 0.4842
Oct 2021 477353 -0.0611 0.3819
Nov 2021 624768 0.3088 0.9109
Dec 2021 701054 0.1221 1.1078
Jan 2022 650136 -0.0726 0.9412
Feb 2022 647121 -0.0046 0.8513
Mar 2022 615594 -0.0487 0.6019
Apr 2022 627581 0.0195 0.5543
May 2022 606523 -0.0336 0.3708
Jun 2022 587662 -0.0311 0.3366
Jul 2022 529931 -0.0982 0.1554
Aug 2022 522088 -0.0148 0.0725
Sep 2022 529036 0.0133 0.0405
Oct 2022 508974 -0.0379 0.0662
Nov 2022 502583 -0.0126 -0.1956
Dec 2022 498825 -0.0075 -0.2885
Jan 2023 493016 -0.0116 -0.2417
Feb 2023 484018 -0.0183 -0.252
Mar 2023 493593 0.0198 -0.1982
Apr 2023 511610 0.0365 -0.1848
May 2023 518680 0.0138 -0.1448
Jun 2023 514474 -0.0081 -0.1245
Jul 2023 509675 -0.0093 -0.0382
Aug 2023 552124 0.0833 0.0575
Sep 2023 558342 0.0113 0.0554
Oct 2023 555843 -0.0045 0.0921
Nov 2023 553147 -0.0049 0.1006
Dec 2023 546972 -0.0112 0.0965
Jan 2024 555233 0.0151 0.1262
Feb 2024 563066 0.0141 0.1633
Mar 2024 567092 0.0071 0.1489
Apr 2024 598660 0.0557 0.1701
May 2024 613818 0.0253 0.1834
Jun 2024 596675 -0.0279 0.1598
Jul 2024 567848 -0.0483 0.1141
Aug 2024 558484 -0.0165 0.0115
Sep 2024 552014 -0.0116 -0.0113
Oct 2024 556398 0.0079 0.001
Nov 2024 579657 0.0418 0.0479
Dec 2024 572303 -0.0127 0.0463
Jan 2025 560010 -0.0215 0.0086
Feb 2025 550419 -0.0171 -0.0225
Mar 2025 529327 -0.0383 -0.0666
Apr 2025 529636 0.0006 -0.1153
May 2025 501901 -0.0524 -0.1823
Jun 2025 510174 0.0165 -0.145
Jul 2025 517206 0.0138 -0.0892
Aug 2025 521330 0.008 -0.0665
Sep 2025 506048 -0.0293 -0.0833
Oct 2025 488318 -0.035 -0.1224
Nov 2025 480730 -0.0155 -0.1707
Dec 2025 465577 -0.0315 -0.1865
Jan 2026 467226 0.0035 -0.1657
Feb 2026 473126 0.0126 -0.1404
Mar 2026 451415 -0.0459 -0.1472