Zip Code: 80305 (Boulder, Colorado) - 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 80305 Zip Code (Boulder, Colorado) in January 2026 was $3,829.603. The month over month percentage change (MoM) was 2.28%, and the year over year percentage change (YoY) was 4.08%.

The chart below shows the trend of the smoothed and seasonally adjusted ZORI for the 80305 zip code (Boulder, Colorado). The table below shows the trend of the smoothed and seasonally adjusted ZORI, and the MoM and YoY percentage changes for the 80305 zip code (Boulder, Colorado).

You can see similar information for other Colorado 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: 80305 (Boulder, Colorado) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted ($)
Zip Code: 80305 (Boulder, Colorado) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted
Items per page:
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Month ZORI ($) 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 0 NaN NaN
Jul 2017 0 NaN NaN
Aug 2017 0 NaN NaN
Sep 2017 0 NaN NaN
Oct 2017 2520.8354267159866 Infinity Infinity
Nov 2017 2506.9459931624324 -0.55 Infinity
Dec 2017 2483.7905499745734 -0.92 Infinity
Jan 2018 2497.066081874343 0.53 Infinity
Feb 2018 2526.128538447061 1.16 Infinity
Mar 2018 2575.4561454960235 1.95 Infinity
Apr 2018 2599.3074759641004 0.93 Infinity
May 2018 2615.4147015270973 0.62 Infinity
Jun 2018 2600.9855990253086 -0.55 Infinity
Jul 2018 2599.3641316507337 -0.06 Infinity
Aug 2018 2637.0261508187637 1.45 Infinity
Sep 2018 2648.3669305305993 0.43 Infinity
Oct 2018 2652.653008679546 0.16 5.23
Nov 2018 2610.4379954521783 -1.59 4.13
Dec 2018 2652.3298745946745 1.61 6.79
Jan 2019 2670.737063047071 0.69 6.96
Feb 2019 2697.2154953832146 0.99 6.77
Mar 2019 2671.146231217493 -0.97 3.72
Apr 2019 2677.388325206217 0.23 3.00
May 2019 2689.958499161172 0.47 2.85
Jun 2019 2720.196212812459 1.12 4.58
Jul 2019 2736.688071651401 0.61 5.28
Aug 2019 2731.222432583702 -0.20 3.57
Sep 2019 2745.3001669992395 0.52 3.66
Oct 2019 2770.1644741033424 0.91 4.43
Nov 2019 2819.6163176031196 1.79 8.01
Dec 2019 2816.579433124843 -0.11 6.19
Jan 2020 2814.6484633715895 -0.07 5.39
Feb 2020 2807.774078763612 -0.24 4.10
Mar 2020 2786.1115990282 -0.77 4.30
Apr 2020 2776.028286625153 -0.36 3.68
May 2020 2776.501514179698 0.02 3.22
Jun 2020 2781.483827966794 0.18 2.25
Jul 2020 2785.117267482249 0.13 1.77
Aug 2020 2778.897523475809 -0.22 1.75
Sep 2020 2780.1503881267477 0.05 1.27
Oct 2020 2800.153227295701 0.72 1.08
Nov 2020 2838.346778849659 1.36 0.66
Dec 2020 2871.844151847195 1.18 1.96
Jan 2021 2887.1609132638264 0.53 2.58
Feb 2021 2868.6406090222667 -0.64 2.17
Mar 2021 2876.7083324452765 0.28 3.25
Apr 2021 2881.4908391978015 0.17 3.80
May 2021 2908.09014204091 0.92 4.74
Jun 2021 2932.873677551748 0.85 5.44
Jul 2021 2977.694304998807 1.53 6.92
Aug 2021 3015.8346400805294 1.28 8.53
Sep 2021 3061.832132317122 1.53 10.13
Oct 2021 3071.0764577660157 0.30 9.68
Nov 2021 3073.7424041024583 0.09 8.29
Dec 2021 3033.744510877573 -1.30 5.64
Jan 2022 3082.3543199724268 1.60 6.76
Feb 2022 3144.915551408978 2.03 9.63
Mar 2022 3227.2780241206647 2.62 12.19
Apr 2022 3247.42896791818 0.62 12.70
May 2022 3263.845335545985 0.51 12.23
Jun 2022 3273.8030774827425 0.31 11.62
Jul 2022 3265.1350358657746 -0.26 9.65
Aug 2022 3261.7259261288996 -0.10 8.15
Sep 2022 3256.569094376208 -0.16 6.36
Oct 2022 3273.2261619292985 0.51 6.58
Nov 2022 3271.491337329563 -0.05 6.43
Dec 2022 3305.976783901236 1.05 8.97
Jan 2023 3295.1154983129804 -0.33 6.90
Feb 2023 3282.9865576354373 -0.37 4.39
Mar 2023 3280.9438410920516 -0.06 1.66
Apr 2023 3308.719938003819 0.85 1.89
May 2023 3359.416834446174 1.53 2.93
Jun 2023 3362.6314367890295 0.10 2.71
Jul 2023 3413.2400218517773 1.51 4.54
Aug 2023 3432.8093924614145 0.57 5.25
Sep 2023 3450.9465547991085 0.53 5.97
Oct 2023 3468.4073749461336 0.51 5.96
Nov 2023 3453.2924912607573 -0.44 5.56
Dec 2023 3489.637942229609 1.05 5.56
Jan 2024 3425.210366605285 -1.85 3.95
Feb 2024 3453.745184451088 0.83 5.20
Mar 2024 3431.6235489234105 -0.64 4.59
Apr 2024 3499.4308372544183 1.98 5.76
May 2024 3514.6302317851164 0.43 4.62
Jun 2024 3552.274019936285 1.07 5.64
Jul 2024 3593.815844438723 1.17 5.29
Aug 2024 3608.784707640423 0.42 5.13
Sep 2024 3671.8319051324056 1.75 6.40
Oct 2024 3677.8242436445003 0.16 6.04
Nov 2024 3693.763395930279 0.43 6.96
Dec 2024 3684.791213304094 -0.24 5.59
Jan 2025 3679.65888377621 -0.14 7.43
Feb 2025 3679.359066828385 -0.01 6.53
Mar 2025 3710.562489776894 0.85 8.13
Apr 2025 3669.4960247767253 -1.11 4.86
May 2025 3661.7332497780976 -0.21 4.18
Jun 2025 3664.1345056964847 0.07 3.15
Jul 2025 3645.1612731263203 -0.52 1.43
Aug 2025 3663.4070508164095 0.50 1.51
Sep 2025 3647.919709418811 -0.42 -0.65
Oct 2025 3674.2704096532525 0.72 -0.10
Nov 2025 3714.903020342929 1.11 0.57
Dec 2025 3744.1701539136507 0.79 1.61
Jan 2026 3829.6031746031745 2.28 4.08