San Mateo County, CA 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 San Mateo County, CA in February 2026 was 501. The month over month percentage change (MoM) was 0.2801%, and the year over year percentage change (YoY) was 0.0362%.

You can see similar for other California counties, and for California.

The chart below shows the trend of active listing count in San Mateo County, CA. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
San Mateo County, CA Trend of Active Listing Count of Houses
San Mateo County, CA Trend of Active Listing Count of Houses
1 – 10 of 116
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 712
Sep 2016 698
Oct 2016 733
Nov 2016 708
Dec 2016 583
Jan 2017 425
Feb 2017 335
Mar 2017 368
Apr 2017 419
May 2017 502
Jun 2017 532
Jul 2017 560
Aug 2017 496 -0.1143 -0.3034
Sep 2017 483 -0.0262 -0.308
Oct 2017 560 0.1594 -0.2355
Nov 2017 522 -0.0679 -0.2627
Dec 2017 402 -0.2308 -0.3107
Jan 2018 258 -0.3574 -0.3929
Feb 2018 260 0.0058 -0.2242
Mar 2018 322 0.2389 -0.1252
Apr 2018 372 0.1571 -0.1122
May 2018 479 0.2876 -0.0458
Jun 2018 488 0.0177 -0.0828
Jul 2018 555 0.1385 -0.0089
Aug 2018 547 -0.0153 0.1018
Sep 2018 568 0.0393 0.176
Oct 2018 734 0.2923 0.3107
Nov 2018 778 0.0593 0.4895
Dec 2018 750 -0.0354 0.868
Jan 2019 514 -0.3147 0.9922
Feb 2019 452 -0.1216 0.7399
Mar 2019 505 0.1185 0.5708
Apr 2019 544 0.0772 0.4624
May 2019 577 0.0607 0.2046
Jun 2019 676 0.1716 0.3867
Jul 2019 726 0.074 0.3081
Aug 2019 681 -0.0627 0.2452
Sep 2019 713 0.0478 0.2553
Oct 2019 762 0.068 0.0375
Nov 2019 805 0.0571 0.0354
Dec 2019 710 -0.118 -0.0533
Jan 2020 391 -0.45 -0.2403
Feb 2020 341 -0.128 -0.2458
Mar 2020 439 0.2893 -0.1307
Apr 2020 480 0.0923 -0.1186
May 2020 519 0.0824 -0.1005
Jun 2020 642 0.237 -0.0503
Jul 2020 724 0.1277 -0.0028
Aug 2020 775 0.0704 0.1389
Sep 2020 828 0.0684 0.1613
Oct 2020 893 0.0779 0.172
Nov 2020 933 0.0454 0.159
Dec 2020 843 -0.097 0.1866
Jan 2021 597 -0.292 0.5275
Feb 2021 513 -0.14 0.5066
Mar 2021 552 0.075 0.2563
Apr 2021 569 0.0308 0.1856
May 2021 572 0.0053 0.1012
Jun 2021 560 -0.0201 -0.1277
Jul 2021 595 0.0625 -0.1782
Aug 2021 628 0.0555 -0.1897
Sep 2021 594 -0.0541 -0.2826
Oct 2021 628 0.0564 -0.2969
Nov 2021 623 -0.0072 -0.3323
Dec 2021 511 -0.1806 -0.3941
Jan 2022 303 -0.4065 -0.492
Feb 2022 278 -0.0825 -0.4581
Mar 2022 333 0.1978 -0.3962
Apr 2022 387 0.1607 -0.3201
May 2022 464 0.2005 -0.1881
Jun 2022 615 0.3254 0.0982
Jul 2022 762 0.2382 0.2798
Aug 2022 799 0.0492 0.2723
Sep 2022 796 -0.0038 0.3401
Oct 2022 785 -0.0138 0.251
Nov 2022 794 0.0115 0.2745
Dec 2022 738 -0.0705 0.4456
Jan 2023 513 -0.3049 0.6931
Feb 2023 389 -0.2427 0.3975
Mar 2023 424 0.0901 0.2718
Apr 2023 437 0.0319 0.1307
May 2023 497 0.1373 0.0711
Jun 2023 544 0.0946 -0.1154
Jul 2023 607 0.1149 -0.2035
Aug 2023 584 -0.0371 -0.2691
Sep 2023 598 0.0231 -0.2494
Oct 2023 706 0.1816 -0.1006
Nov 2023 734 0.0397 -0.0756
Dec 2023 656 -0.1063 -0.1111
Jan 2024 422 -0.3567 -0.1774
Feb 2024 364 -0.1374 -0.0631
Mar 2024 418 0.1484 -0.013
Apr 2024 470 0.1244 0.0755
May 2024 592 0.2585 0.1901
Jun 2024 658 0.1116 0.2086
Jul 2024 697 0.0601 0.1492
Aug 2024 713 0.023 0.2209
Sep 2024 699 -0.0196 0.1699
Oct 2024 766 0.0951 0.0843
Nov 2024 757 -0.0111 0.0313
Dec 2024 630 -0.1678 -0.0396
Jan 2025 382 -0.3937 -0.0948
Feb 2025 354 -0.0733 -0.0275
Mar 2025 483 0.3644 0.1555
Apr 2025 663 0.3727 0.4106
May 2025 772 0.1644 0.3052
Jun 2025 906 0.1736 0.3779
Jul 2025 943 0.0408 0.3529
Aug 2025 847 -0.1018 0.1879
Sep 2025 822 -0.0295 0.176
Oct 2025 828 0.0067 0.081
Nov 2025 803 -0.0296 0.0608
Dec 2025 706 -0.1208 0.1206
Jan 2026 423 -0.4016 0.106
Feb 2026 391 -0.0746 0.1045
Mar 2026 501 0.2801 0.0362