Zip Code: 91765 (Diamond Bar, 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 the 91765 Zip Code (Diamond Bar, California) in February 2026 was $3,135.281. The month over month percentage change (MoM) was 0.55%, and the year over year percentage change (YoY) was 3.19%.

The chart below shows the trend of the smoothed and seasonally adjusted ZORI for the 91765 zip code (Diamond Bar, California). The table below shows the trend of the smoothed and seasonally adjusted ZORI, and the MoM and YoY percentage changes for the 91765 zip code (Diamond Bar, California).

You can see similar information for other California zip codes.

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.
Zip Code: 91765 (Diamond Bar, California) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted ($)
Zip Code: 91765 (Diamond Bar, California) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted
1 – 10 of 134
Month ZORI ($) MoM Perc. Change (%) YoY Perc. Change (%)
Jan 2015 1800.2816239225979 NaN NaN
Feb 2015 1816.4432812861005 0.90 NaN
Mar 2015 1820.206692835282 0.21 NaN
Apr 2015 1831.7594373120694 0.64 NaN
May 2015 1821.6444384165231 -0.55 NaN
Jun 2015 1823.4998273060542 0.10 NaN
Jul 2015 1833.3450996895676 0.54 NaN
Aug 2015 1850.2889810687825 0.92 NaN
Sep 2015 1868.6588485378966 0.99 NaN
Oct 2015 1862.168024133097 -0.35 NaN
Nov 2015 1878.5367331722491 0.88 NaN
Dec 2015 1888.2621812781726 0.52 NaN
Jan 2016 1897.514850727197 0.49 5.40
Feb 2016 1895.5251832368344 -0.10 4.35
Mar 2016 1872.732399296052 -1.20 2.89
Apr 2016 1878.7067149080776 0.32 2.56
May 2016 1882.0811095720694 0.18 3.32
Jun 2016 1910.354254902479 1.50 4.76
Jul 2016 1920.8850368218627 0.55 4.78
Aug 2016 1927.1863104590698 0.33 4.16
Sep 2016 1922.3437672570258 -0.25 2.87
Oct 2016 1940.1596782927577 0.93 4.19
Nov 2016 1937.0211400711087 -0.16 3.11
Dec 2016 1949.1476576282496 0.63 3.22
Jan 2017 1971.3126095912542 1.14 3.89
Feb 2017 1981.9369042393794 0.54 4.56
Mar 2017 1993.2025058109327 0.57 6.43
Apr 2017 1979.282345016474 -0.70 5.35
May 2017 2007.9531966750553 1.45 6.69
Jun 2017 2014.0225780616804 0.30 5.43
Jul 2017 2012.4783178909709 -0.08 4.77
Aug 2017 2003.8605305422093 -0.43 3.98
Sep 2017 2014.0226731563114 0.51 4.77
Oct 2017 2027.609378253738 0.68 4.51
Nov 2017 2040.0069193737918 0.61 5.32
Dec 2017 2033.182827204442 -0.33 4.31
Jan 2018 2019.5506069928526 -0.67 2.45
Feb 2018 2017.4193747611873 -0.11 1.79
Mar 2018 2029.9686511601335 0.62 1.85
Apr 2018 2038.2045769625533 0.41 2.98
May 2018 2044.2623777934934 0.30 1.81
Jun 2018 2048.544100098056 0.21 1.71
Jul 2018 2066.5691512832273 0.88 2.69
Aug 2018 2070.100885672627 0.17 3.31
Sep 2018 2082.8776745457876 0.62 3.42
Oct 2018 2080.6907866713555 -0.10 2.62
Nov 2018 2081.481778802433 0.04 2.03
Dec 2018 2070.242021160247 -0.54 1.82
Jan 2019 2076.188723132955 0.29 2.80
Feb 2019 2083.123205665068 0.33 3.26
Mar 2019 2084.3216348431315 0.06 2.68
Apr 2019 2095.897130086495 0.56 2.83
May 2019 2090.6622643412397 -0.25 2.27
Jun 2019 2093.1540295207406 0.12 2.18
Jul 2019 2093.4893889767645 0.02 1.30
Aug 2019 2110.1664620284996 0.80 1.94
Sep 2019 2114.275554878855 0.20 1.51
Oct 2019 2125.546589183787 0.53 2.16
Nov 2019 2140.3118340068754 0.70 2.83
Dec 2019 2172.29554214438 1.49 4.93
Jan 2020 2194.0915029511316 1.00 5.68
Feb 2020 2213.965057726517 0.91 6.28
Mar 2020 0 -100.00 -100.00
Apr 2020 2143.4820168053066 Infinity 2.27
May 2020 2117.3378010102115 -1.22 1.28
Jun 2020 2148.8148902350727 1.49 2.66
Jul 2020 2135.6128552585446 -0.61 2.01
Aug 2020 2151.7191684022664 0.75 1.97
Sep 2020 2163.451190130351 0.55 2.33
Oct 2020 2191.0362883784933 1.27 3.08
Nov 2020 2216.5732796112525 1.17 3.56
Dec 2020 2244.604769027322 1.26 3.33
Jan 2021 2268.029594683704 1.04 3.37
Feb 2021 2283.685110551243 0.69 3.15
Mar 2021 2298.9785392649746 0.67 Infinity
Apr 2021 2304.7776403662356 0.25 7.53
May 2021 2364.470296754948 2.59 11.67
Jun 2021 2400.475119282904 1.52 11.71
Jul 2021 2442.825782972101 1.76 14.39
Aug 2021 2457.179693140329 0.59 14.20
Sep 2021 2501.928288778802 1.82 15.65
Oct 2021 2558.4699172913674 2.26 16.77
Nov 2021 2557.8121990648583 -0.03 15.40
Dec 2021 2566.1202173901775 0.33 14.32
Jan 2022 2546.15912736365 -0.78 12.26
Feb 2022 2571.5123356372465 1.00 12.60
Mar 2022 2585.694786194986 0.55 12.47
Apr 2022 2613.7784267668453 1.09 13.41
May 2022 2633.66201848143 0.76 11.39
Jun 2022 2645.1270994091487 0.44 10.19
Jul 2022 2693.1575241124006 1.82 10.25
Aug 2022 2705.603646012157 0.46 10.11
Sep 2022 2693.051303275972 -0.46 7.64
Oct 2022 2678.328077164418 -0.55 4.68
Nov 2022 2717.649839606928 1.47 6.25
Dec 2022 2747.2891252340496 1.09 7.06
Jan 2023 2767.992515992182 0.75 8.71
Feb 2023 2773.1704118434304 0.19 7.84
Mar 2023 2856.4196612363257 3.00 10.47
Apr 2023 2866.3517082075205 0.35 9.66
May 2023 2882.0030820700786 0.55 9.43
Jun 2023 2851.395012699909 -1.06 7.80
Jul 2023 2858.2915029653577 0.24 6.13
Aug 2023 2862.989555758251 0.16 5.82
Sep 2023 2888.707836785826 0.90 7.27
Oct 2023 2887.3062882934278 -0.05 7.80
Nov 2023 2889.743868298799 0.08 6.33
Dec 2023 2867.761807526386 -0.76 4.39
Jan 2024 2929.531476843739 2.15 5.84
Feb 2024 2930.1600861026673 0.02 5.66
Mar 2024 2905.99989377094 -0.82 1.74
Apr 2024 2895.070793537787 -0.38 1.00
May 2024 2915.411781875819 0.70 1.16
Jun 2024 2946.7832036781965 1.08 3.35
Jul 2024 2948.4676101329555 0.06 3.16
Aug 2024 2946.8172135876193 -0.06 2.93
Sep 2024 2976.1132265070873 0.99 3.03
Oct 2024 2979.390687318997 0.11 3.19
Nov 2024 3017.8653013413955 1.29 4.43
Dec 2024 3023.3411714442445 0.18 5.43
Jan 2025 3036.0485196744607 0.42 3.64
Feb 2025 3038.260244492658 0.07 3.69
Mar 2025 3041.6937947453093 0.11 4.67
Apr 2025 3069.022817785837 0.90 6.01
May 2025 3068.2186662325043 -0.03 5.24
Jun 2025 3083.875030197549 0.51 4.65
Jul 2025 3095.191310703152 0.37 4.98
Aug 2025 3117.992893209751 0.74 5.81
Sep 2025 3109.220921473827 -0.28 4.47
Oct 2025 3133.7815416792932 0.79 5.18
Nov 2025 3117.709934124788 -0.51 3.31
Dec 2025 3140.8093455915923 0.74 3.89
Jan 2026 3118.0049333682596 -0.73 2.70
Feb 2026 3135.280952380952 0.55 3.19