Zip Code: 78666 (San Marcos, TX) - Trend of Active Listing Count of Houses (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the active listing count of houses in the 78666 Zip Code in February 2026 was 424. The month over month percentage change (MoM) was 0.1459%, and the year over year percentage change (YoY) was 0.2695%.

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

The chart below shows the trend of active listing count in the 78666 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 78666 - Trend of Active Listing Count of Houses
Zip Code: 78666 Trend of Active Listing Count of Houses
Items per page:
1 – 10 of 116
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 147
Sep 2016 153
Oct 2016 149
Nov 2016 140
Dec 2016 137
Jan 2017 132
Feb 2017 121
Mar 2017 120
Apr 2017 132
May 2017 137
Jun 2017 144
Jul 2017 142
Aug 2017 149 0.0493 0.0136
Sep 2017 165 0.1074 0.082
Oct 2017 168 0.0182 0.1313
Nov 2017 159 -0.0536 0.1357
Dec 2017 142 -0.1101 0.0328
Jan 2018 132 -0.0671 0.0
Feb 2018 111 -0.1591 -0.0826
Mar 2018 127 0.1396 0.0586
Apr 2018 154 0.2174 0.1711
May 2018 159 0.0292 0.1569
Jun 2018 168 0.0568 0.1632
Jul 2018 191 0.1403 0.3451
Aug 2018 218 0.1414 0.4631
Sep 2018 223 0.0229 0.3515
Oct 2018 230 0.0314 0.369
Nov 2018 252 0.0935 0.5818
Dec 2018 249 -0.0119 0.7562
Jan 2019 240 -0.0342 0.8182
Feb 2019 218 -0.0938 0.9595
Mar 2019 232 0.0644 0.83
Apr 2019 246 0.0626 0.5974
May 2019 248 0.0061 0.5615
Jun 2019 231 -0.0687 0.3761
Jul 2019 221 -0.0412 0.1571
Aug 2019 243 0.0995 0.1147
Sep 2019 242 -0.0041 0.0852
Oct 2019 238 -0.0186 0.0326
Nov 2019 235 -0.0126 -0.0676
Dec 2019 246 0.049 -0.0101
Jan 2020 242 -0.0183 0.0063
Feb 2020 241 -0.0021 0.108
Mar 2020 229 -0.0498 -0.0108
Apr 2020 217 -0.0546 -0.1199
May 2020 236 0.0878 -0.0485
Jun 2020 242 0.0276 0.0499
Jul 2020 211 -0.1302 -0.0475
Aug 2020 197 -0.0665 -0.1914
Sep 2020 194 -0.0127 -0.1983
Oct 2020 190 -0.0232 -0.2021
Nov 2020 205 0.0818 -0.1258
Dec 2020 185 -0.1 -0.25
Jan 2021 166 -0.1003 -0.3126
Feb 2021 109 -0.3434 -0.5477
Mar 2021 65 -0.4083 -0.7183
Apr 2021 61 -0.062 -0.7206
May 2021 67 0.1074 -0.7155
Jun 2021 64 -0.0448 -0.7355
Jul 2021 71 0.1016 -0.6651
Aug 2021 94 0.3333 -0.5216
Sep 2021 127 0.3457 -0.3479
Oct 2021 139 0.0949 -0.2691
Nov 2021 117 -0.1552 -0.4293
Dec 2021 111 -0.0556 -0.4011
Jan 2022 99 -0.1086 -0.4066
Feb 2022 78 -0.2081 -0.2844
Mar 2022 73 -0.0641 0.1318
Apr 2022 65 -0.1164 0.0661
May 2022 71 0.1008 0.0597
Jun 2022 123 0.7254 0.9141
Jul 2022 169 0.3755 1.3901
Aug 2022 215 0.276 1.2872
Sep 2022 234 0.0884 0.8498
Oct 2022 255 0.0876 0.8375
Nov 2022 258 0.0138 1.2051
Dec 2022 273 0.0581 1.4706
Jan 2023 265 -0.0293 1.6904
Feb 2023 255 -0.0377 2.2692
Mar 2023 258 0.0118 2.5342
Apr 2023 255 -0.0136 2.9457
May 2023 259 0.0177 2.6479
Jun 2023 271 0.0444 1.2082
Jul 2023 294 0.0869 0.7448
Aug 2023 283 -0.0374 0.3163
Sep 2023 284 0.0035 0.2137
Oct 2023 285 0.0035 0.1198
Nov 2023 284 -0.0053 0.0988
Dec 2023 263 -0.0741 -0.0385
Jan 2024 243 -0.0743 -0.083
Feb 2024 221 -0.0905 -0.1333
Mar 2024 249 0.1267 -0.0349
Apr 2024 271 0.0884 0.0648
May 2024 321 0.1845 0.2394
Jun 2024 336 0.0452 0.2403
Jul 2024 385 0.1475 0.3095
Aug 2024 396 0.0273 0.3975
Sep 2024 414 0.0468 0.4577
Oct 2024 415 0.0012 0.4544
Nov 2024 402 -0.0314 0.4162
Dec 2024 385 -0.0411 0.4667
Jan 2025 357 -0.0727 0.4691
Feb 2025 318 -0.1106 0.4367
Mar 2025 334 0.052 0.3414
Apr 2025 335 0.003 0.2362
May 2025 375 0.1194 0.1682
Jun 2025 431 0.1493 0.2846
Jul 2025 461 0.0684 0.1961
Aug 2025 461 0.0 0.1643
Sep 2025 453 -0.0163 0.0942
Oct 2025 426 -0.0596 0.0277
Nov 2025 421 -0.0129 0.0473
Dec 2025 389 -0.0749 0.0104
Jan 2026 398 0.0219 0.1134
Feb 2026 370 -0.0692 0.1654
Mar 2026 424 0.1459 0.2695