Sonoma County, California - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted (Zillow)

Updated on March 22, 2026.

According to data from Zillow.com, the smoothed and seasonally adjusted Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily in Sonoma County, California in February 2026 was $2,615.661. The month over month percentage change (MoM) was 0.30%, and the year over year percentage change (YoY) was 1.18%.

The chart below shows the trend of the smoothed and seasonally adjusted ZORI for Sonoma County, CA. The table below shows the trend of the smoothed and seasonally adjusted ZORI, and the MoM and YoY percentage changes for Sonoma County, CA.

You can see similar information for other California counties.

Note: Zillow Observed Rent Index (ZORI) is a smoothed measure of the typical observed market rate rent across a given region. ZORI is a repeat-rent index that is weighted to the rental housing stock to ensure representativeness across the entire market, not just homes currently listed for-rent.

Data Source: Zillow.
Sonoma County, CA - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted ($)
Sonoma County, CA - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted
1 – 10 of 134
Month ZORI ($) MoM Perc. Change (%) YoY Perc. Change (%)
Jan 2015 1611.4465898020505 1561.29 NaN
Feb 2015 1619.9093369070697 0.53 NaN
Mar 2015 1628.7214452772641 0.54 NaN
Apr 2015 1644.1968665623956 0.95 NaN
May 2015 1653.9846953565802 0.60 NaN
Jun 2015 1674.774336054822 1.26 NaN
Jul 2015 1680.9382887453467 0.37 NaN
Aug 2015 1690.622821327518 0.58 NaN
Sep 2015 1704.223206498889 0.80 NaN
Oct 2015 1717.8549881881595 0.80 NaN
Nov 2015 1731.7401810138479 0.81 28762.34
Dec 2015 1749.3385304910064 1.02 1703.44
Jan 2016 1767.4721089413733 1.04 9.68
Feb 2016 1781.8575896120603 0.81 10.00
Mar 2016 1822.1195969466526 2.26 11.87
Apr 2016 1833.0582557542448 0.60 11.49
May 2016 1854.0267649640762 1.14 12.10
Jun 2016 1844.3075330021948 -0.52 10.12
Jul 2016 1854.8888872564798 0.57 10.35
Aug 2016 1858.8265919751009 0.21 9.95
Sep 2016 1853.0370149938153 -0.31 8.73
Oct 2016 1855.1742150060297 0.12 7.99
Nov 2016 1853.1946655505637 -0.11 7.01
Dec 2016 1849.916131682477 -0.18 5.75
Jan 2017 1859.4358493248405 0.52 5.20
Feb 2017 1884.1289990839884 1.33 5.74
Mar 2017 1889.3980237170992 0.28 3.69
Apr 2017 1903.3580143985075 0.74 3.84
May 2017 1905.1087590320747 0.09 2.76
Jun 2017 1928.4033164273753 1.22 4.56
Jul 2017 1934.6471845968601 0.32 4.30
Aug 2017 1946.3787654486623 0.61 4.71
Sep 2017 1964.55548393479 0.93 6.02
Oct 2017 1987.9481122550442 1.19 7.16
Nov 2017 2021.2068605382174 1.67 9.07
Dec 2017 2043.0467453263614 1.08 10.44
Jan 2018 2058.7584091194185 0.77 10.72
Feb 2018 2057.0776288320512 -0.08 9.18
Mar 2018 2073.9109453764854 0.82 9.77
Apr 2018 2069.3161860409887 -0.22 8.72
May 2018 2072.0624935450696 0.13 8.76
Jun 2018 2072.20032462162 0.01 7.46
Jul 2018 2084.04791599425 0.57 7.72
Aug 2018 2087.0219657534435 0.14 7.23
Sep 2018 2085.618527792245 -0.07 6.16
Oct 2018 2094.8144244758723 0.44 5.38
Nov 2018 2093.8106695526267 -0.05 3.59
Dec 2018 2101.303462455728 0.36 2.85
Jan 2019 2078.3365877062206 -1.09 0.95
Feb 2019 2077.2486865959745 -0.05 0.98
Mar 2019 2068.599187418226 -0.42 -0.26
Apr 2019 2077.368396290995 0.42 0.39
May 2019 2084.574271877895 0.35 0.60
Jun 2019 2088.446905508283 0.19 0.78
Jul 2019 2087.8812632265945 -0.03 0.18
Aug 2019 2092.093310638702 0.20 0.24
Sep 2019 2097.8892959248474 0.28 0.59
Oct 2019 2091.2353324124238 -0.32 -0.17
Nov 2019 2088.3575992939254 -0.14 -0.26
Dec 2019 2085.045173437644 -0.16 -0.77
Jan 2020 2105.0010495305296 0.96 1.28
Feb 2020 2114.1310932977576 0.43 1.78
Mar 2020 2119.1127060628487 0.24 2.44
Apr 2020 2110.445637839812 -0.41 1.59
May 2020 2101.0032857288797 -0.45 0.79
Jun 2020 2107.0942008015163 0.29 0.89
Jul 2020 2105.510101320726 -0.07 0.84
Aug 2020 2117.1339939024588 0.55 1.20
Sep 2020 2119.6202093715724 0.12 1.04
Oct 2020 2157.361268788412 1.78 3.16
Nov 2020 2163.926753292027 0.30 3.62
Dec 2020 2172.9674834015545 0.42 4.22
Jan 2021 2152.371379184352 -0.95 2.25
Feb 2021 2161.7153500214395 0.43 2.25
Mar 2021 2166.2098355689486 0.21 2.22
Apr 2021 2177.038550326481 0.50 3.16
May 2021 2194.3622442350998 0.80 4.44
Jun 2021 2217.8086709024365 1.07 5.25
Jul 2021 2249.955048024246 1.45 6.86
Aug 2021 2270.150873750169 0.90 7.23
Sep 2021 2298.735706441211 1.26 8.45
Oct 2021 2299.2053949760475 0.02 6.58
Nov 2021 2321.0906651398277 0.95 7.26
Dec 2021 2323.8880573441793 0.12 6.95
Jan 2022 2355.933115015873 1.38 9.46
Feb 2022 2371.9505016210865 0.68 9.73
Mar 2022 2402.558264666991 1.29 10.91
Apr 2022 2423.4204561720185 0.87 11.32
May 2022 2435.7108834356272 0.51 11.00
Jun 2022 2441.4184774530963 0.23 10.08
Jul 2022 2441.231047846244 -0.01 8.50
Aug 2022 2439.887711440864 -0.05 7.48
Sep 2022 2434.2093047504504 -0.23 5.89
Oct 2022 2435.8044261994696 0.07 5.94
Nov 2022 2431.600151510875 -0.17 4.76
Dec 2022 2446.3939224598225 0.61 5.27
Jan 2023 2447.2195351472296 0.03 3.88
Feb 2023 2456.091084045906 0.36 3.55
Mar 2023 2456.6362569278067 0.02 2.25
Apr 2023 2468.0177294545047 0.46 1.84
May 2023 2481.11804662744 0.53 1.86
Jun 2023 2493.2497398617065 0.49 2.12
Jul 2023 2496.5197381305447 0.13 2.27
Aug 2023 2508.8222718685424 0.49 2.83
Sep 2023 2516.6643153626082 0.31 3.39
Oct 2023 2520.1090274851663 0.14 3.46
Nov 2023 2528.768645709938 0.34 4.00
Dec 2023 2526.2717128824156 -0.10 3.27
Jan 2024 2535.3081714959008 0.36 3.60
Feb 2024 2528.228531314454 -0.28 2.94
Mar 2024 2527.239826907599 -0.04 2.87
Apr 2024 2530.0401358731756 0.11 2.51
May 2024 2535.0521959167418 0.20 2.17
Jun 2024 2527.7939137748745 -0.29 1.39
Jul 2024 2530.0521296302136 0.09 1.34
Aug 2024 2537.4948539061465 0.29 1.14
Sep 2024 2554.3630712591594 0.67 1.50
Oct 2024 2569.999646251367 0.61 1.98
Nov 2024 2576.031109759466 0.24 1.87
Dec 2024 2581.9790747335037 0.23 2.21
Jan 2025 2582.7214784229186 0.03 1.87
Feb 2025 2585.1346762917283 0.09 2.25
Mar 2025 2592.7006087369728 0.29 2.59
Apr 2025 2593.299285070296 0.02 2.50
May 2025 2592.59087846556 -0.03 2.27
Jun 2025 2602.6801720918097 0.39 2.96
Jul 2025 2610.2946626942407 0.29 3.17
Aug 2025 2609.7213294408557 -0.02 2.85
Sep 2025 2604.1465187734702 -0.21 1.95
Oct 2025 2600.7601008719494 -0.13 1.20
Nov 2025 2602.127664215587 0.05 1.01
Dec 2025 2605.1443377250052 0.12 0.90
Jan 2026 2607.916683685488 0.11 0.98
Feb 2026 2615.661212039571 0.30 1.18