Zip Code: 94404 (Foster City, California) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted (Zillow)
Updated on March 2, 2026.

According to data from Zillow.com, the smoothed and seasonally adjusted Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily in the 94404 Zip Code (Foster City, California) in January 2026 was $3,777.696. The month over month percentage change (MoM) was 0.68%, and the year over year percentage change (YoY) was 6.64%.

The chart below shows the trend of the smoothed and seasonally adjusted ZORI for the 94404 zip code (Foster City, California). The table below shows the trend of the smoothed and seasonally adjusted ZORI, and the MoM and YoY percentage changes for the 94404 zip code (Foster City, 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: 94404 (Foster City, California) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted ($)
Zip Code: 94404 (Foster City, California) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted
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Month ZORI ($) MoM Perc. Change (%) YoY Perc. Change (%)
Jan 2015 0 NaN NaN
Feb 2015 0 NaN NaN
Mar 2015 0 NaN NaN
Apr 2015 0 NaN NaN
May 2015 0 NaN NaN
Jun 2015 0 NaN NaN
Jul 2015 0 NaN NaN
Aug 2015 0 NaN NaN
Sep 2015 0 NaN NaN
Oct 2015 0 NaN NaN
Nov 2015 0 NaN NaN
Dec 2015 0 NaN NaN
Jan 2016 0 NaN NaN
Feb 2016 0 NaN NaN
Mar 2016 0 NaN NaN
Apr 2016 0 NaN NaN
May 2016 0 NaN NaN
Jun 2016 0 NaN NaN
Jul 2016 0 NaN NaN
Aug 2016 0 NaN NaN
Sep 2016 0 NaN NaN
Oct 2016 0 NaN NaN
Nov 2016 0 NaN NaN
Dec 2016 0 NaN NaN
Jan 2017 0 NaN NaN
Feb 2017 0 NaN NaN
Mar 2017 0 NaN NaN
Apr 2017 0 NaN NaN
May 2017 0 NaN NaN
Jun 2017 2971.693006111888 Infinity Infinity
Jul 2017 2939.9196633342563 -1.07 Infinity
Aug 2017 2953.849274413816 0.47 Infinity
Sep 2017 2964.473628336137 0.36 Infinity
Oct 2017 2994.1473145572745 1.00 Infinity
Nov 2017 2998.011440622934 0.13 Infinity
Dec 2017 2976.326752989444 -0.72 Infinity
Jan 2018 2933.064395062016 -1.45 Infinity
Feb 2018 2920.127224896299 -0.44 Infinity
Mar 2018 2931.2882088264846 0.38 Infinity
Apr 2018 2966.9171328458406 1.22 Infinity
May 2018 3003.130138793647 1.22 Infinity
Jun 2018 3053.7715297029845 1.69 2.76
Jul 2018 3081.166840426321 0.90 4.80
Aug 2018 3074.396882094817 -0.22 4.08
Sep 2018 3039.710537934725 -1.13 2.54
Oct 2018 3043.075791355293 0.11 1.63
Nov 2018 3044.5039889049417 0.05 1.55
Dec 2018 3086.036970655706 1.36 3.69
Jan 2019 3105.163274102523 0.62 5.87
Feb 2019 3150.1404584915294 1.45 7.88
Mar 2019 3150.3188333443995 0.01 7.47
Apr 2019 3118.8507887244805 -1.00 5.12
May 2019 3120.6461915444415 0.06 3.91
Jun 2019 3097.7843160459843 -0.73 1.44
Jul 2019 3124.26756597556 0.86 1.40
Aug 2019 3149.3790762962635 0.80 2.44
Sep 2019 3189.1267808244233 1.26 4.92
Oct 2019 3200.8433490867897 0.37 5.18
Nov 2019 3213.635110536936 0.40 5.56
Dec 2019 3224.537998745072 0.34 4.49
Jan 2020 3242.1455907997392 0.55 4.41
Feb 2020 3242.4072471514214 0.01 2.93
Mar 2020 3197.1981686343 -1.39 1.49
Apr 2020 3173.0242543157633 -0.76 1.74
May 2020 3136.059952763392 -1.16 0.49
Jun 2020 3108.2249517938662 -0.89 0.34
Jul 2020 3053.0964926975835 -1.77 -2.28
Aug 2020 3018.3001573899146 -1.14 -4.16
Sep 2020 2983.893201945043 -1.14 -6.43
Oct 2020 2948.8453135245036 -1.17 -7.87
Nov 2020 2918.4191828906555 -1.03 -9.19
Dec 2020 2868.9870830690643 -1.69 -11.03
Jan 2021 2862.082073952698 -0.24 -11.72
Feb 2021 2831.717986703364 -1.06 -12.67
Mar 2021 2840.735078795499 0.32 -11.15
Apr 2021 2866.431573197679 0.91 -9.66
May 2021 2917.480973921785 1.78 -6.97
Jun 2021 2973.1814149697448 1.91 -4.34
Jul 2021 3019.614691004619 1.56 -1.10
Aug 2021 3050.5415403450997 1.02 1.07
Sep 2021 3080.6610909402743 0.99 3.24
Oct 2021 3129.632633753551 1.59 6.13
Nov 2021 3144.139526354907 0.46 7.73
Dec 2021 3193.4327475673613 1.57 11.31
Jan 2022 3190.200906562218 -0.10 11.46
Feb 2022 3267.6550285852036 2.43 15.40
Mar 2022 3286.5190320133406 0.58 15.69
Apr 2022 3310.013902655861 0.72 15.48
May 2022 3308.2392592910496 -0.05 13.39
Jun 2022 3312.3888504373117 0.13 11.41
Jul 2022 3330.595796989685 0.55 10.30
Aug 2022 3341.4885333877164 0.33 9.54
Sep 2022 3358.3672448050625 0.51 9.01
Oct 2022 3345.9001900580943 -0.37 6.91
Nov 2022 3335.676748848125 -0.31 6.09
Dec 2022 3333.17656436479 -0.07 4.38
Jan 2023 3355.7688410687024 0.68 5.19
Feb 2023 3367.0327341076877 0.34 3.04
Mar 2023 3372.8692236643165 0.17 2.63
Apr 2023 3352.134899194045 -0.61 1.27
May 2023 3340.4462350117537 -0.35 0.97
Jun 2023 3355.528124725141 0.45 1.30
Jul 2023 3363.853135422002 0.25 1.00
Aug 2023 3377.7755426925196 0.41 1.09
Sep 2023 3356.5153799958457 -0.63 -0.05
Oct 2023 3373.0998776228735 0.49 0.81
Nov 2023 3377.320772128304 0.13 1.25
Dec 2023 3374.6955666002036 -0.08 1.25
Jan 2024 3392.9348200733093 0.54 1.11
Feb 2024 3414.0177849104216 0.62 1.40
Mar 2024 3435.8047862912954 0.64 1.87
Apr 2024 3445.419673213916 0.28 2.78
May 2024 3445.9330807532265 0.02 3.16
Jun 2024 3441.4193506216816 -0.13 2.56
Jul 2024 3433.931688153979 -0.22 2.08
Aug 2024 3450.957236712454 0.50 2.17
Sep 2024 3472.260046259483 0.62 3.45
Oct 2024 3506.221404331698 0.98 3.95
Nov 2024 3520.1165373937747 0.40 4.23
Dec 2024 3539.4203838666567 0.55 4.88
Jan 2025 3542.401753890432 0.08 4.41
Feb 2025 3534.7349186964693 -0.22 3.54
Mar 2025 3540.7908948788713 0.17 3.06
Apr 2025 3568.718399510005 0.79 3.58
May 2025 3604.684202443337 1.01 4.61
Jun 2025 3631.2923894631017 0.74 5.52
Jul 2025 3661.829743255565 0.84 6.64
Aug 2025 3673.051032339538 0.31 6.44
Sep 2025 3698.211447323799 0.69 6.51
Oct 2025 3700.80018405088 0.07 5.55
Nov 2025 3727.428749637582 0.72 5.89
Dec 2025 3752.287582163607 0.67 6.01
Jan 2026 3777.695992179863 0.68 6.64