Zip Code: 21220 (Middle River, Maryland) - 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 21220 Zip Code (Middle River, Maryland) in January 2026 was $1,803.387. The month over month percentage change (MoM) was -0.31%, and the year over year percentage change (YoY) was 2.45%.

The chart below shows the trend of the smoothed and seasonally adjusted ZORI for the 21220 zip code (Middle River, Maryland). The table below shows the trend of the smoothed and seasonally adjusted ZORI, and the MoM and YoY percentage changes for the 21220 zip code (Middle River, Maryland).

You can see similar information for other Maryland 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: 21220 (Middle River, Maryland) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted ($)
Zip Code: 21220 (Middle River, Maryland) - Trend of Zillow Observed Rent Index (ZORI) for All Homes Plus Multifamily, Smooth and Seasonally Adjusted
Items per page:
1 – 10 of 133
Month ZORI ($) 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 1243.5711746337518 Infinity Infinity
Mar 2016 1234.0778461958039 -0.76 Infinity
Apr 2016 1227.524084955539 -0.53 Infinity
May 2016 1218.3035420338608 -0.75 Infinity
Jun 2016 1227.1161412907425 0.72 Infinity
Jul 2016 1228.6080881697746 0.12 Infinity
Aug 2016 1233.4224240484125 0.39 Infinity
Sep 2016 1237.582349893222 0.34 Infinity
Oct 2016 1223.7795415747876 -1.11 Infinity
Nov 2016 1228.7491444080285 0.41 Infinity
Dec 2016 1224.8182524126778 -0.32 Infinity
Jan 2017 1234.6197384835743 0.80 Infinity
Feb 2017 1231.6395282884437 -0.24 -0.96
Mar 2017 1233.7264686073968 0.17 -0.03
Apr 2017 1229.3069653499251 -0.36 0.14
May 2017 1236.203217562736 0.56 1.47
Jun 2017 1250.6973423639145 1.17 1.92
Jul 2017 1243.850464544212 -0.55 1.24
Aug 2017 1249.39756435846 0.45 1.30
Sep 2017 1242.6927415613136 -0.54 0.41
Oct 2017 1266.6377306069035 1.93 3.50
Nov 2017 1271.898697838869 0.42 3.51
Dec 2017 1273.3850496787588 0.12 3.97
Jan 2018 1267.9260422777043 -0.43 2.70
Feb 2018 1251.0743378733998 -1.33 1.58
Mar 2018 1263.6148972575575 1.00 2.42
Apr 2018 1269.9882486291995 0.50 3.31
May 2018 1288.9962693377774 1.50 4.27
Jun 2018 1267.9305137854471 -1.63 1.38
Jul 2018 1274.298576338411 0.50 2.45
Aug 2018 1274.0172423002275 -0.02 1.97
Sep 2018 1299.951364420988 2.04 4.61
Oct 2018 1293.8514267963303 -0.47 2.15
Nov 2018 1307.1323395479724 1.03 2.77
Dec 2018 1305.0295952838426 -0.16 2.49
Jan 2019 1315.8329574370505 0.83 3.78
Feb 2019 1315.2273228611275 -0.05 5.13
Mar 2019 1312.0691559799964 -0.24 3.84
Apr 2019 1317.3053214003787 0.40 3.73
May 2019 1307.2202176083103 -0.77 1.41
Jun 2019 1320.677002651949 1.03 4.16
Jul 2019 1324.5685296075 0.30 3.95
Aug 2019 1327.015361541332 0.19 4.16
Sep 2019 1314.92707718567 -0.91 1.15
Oct 2019 1316.281723844691 0.10 1.73
Nov 2019 1308.6411586902375 -0.58 0.12
Dec 2019 1315.8171030970561 0.55 0.83
Jan 2020 1314.0077504268368 -0.14 -0.14
Feb 2020 1328.251201157436 1.08 0.99
Mar 2020 1335.5011923831669 0.55 1.79
Apr 2020 1313.733527589179 -1.63 -0.27
May 2020 1306.2819033177598 -0.57 -0.07
Jun 2020 1318.8126114493207 0.96 -0.14
Jul 2020 1349.0997117608968 2.30 1.85
Aug 2020 1366.5281798289977 1.29 2.98
Sep 2020 1368.4593931568672 0.14 4.07
Oct 2020 1376.4945126200657 0.59 4.57
Nov 2020 1381.93002477304 0.40 5.60
Dec 2020 1400.9873497935673 1.38 6.47
Jan 2021 1407.3920433824478 0.46 7.11
Feb 2021 1428.0460547384012 1.47 7.51
Mar 2021 1429.8926084879326 0.13 7.07
Apr 2021 1456.8501306584474 1.89 10.89
May 2021 1480.5505376426213 1.63 13.34
Jun 2021 1485.6120720853457 0.34 12.65
Jul 2021 1503.140776020348 1.18 11.42
Aug 2021 1513.1061565837974 0.66 10.73
Sep 2021 1556.5566451329294 2.87 13.75
Oct 2021 1574.4943447947805 1.15 14.38
Nov 2021 1591.7860623840288 1.10 15.19
Dec 2021 1581.949032763975 -0.62 12.92
Jan 2022 1591.4611603079745 0.60 13.08
Feb 2022 1582.729437487791 -0.55 10.83
Mar 2022 1604.7228388172653 1.39 12.23
Apr 2022 1617.8634720717976 0.82 11.05
May 2022 1630.9986918399547 0.81 10.16
Jun 2022 1640.521882806361 0.58 10.43
Jul 2022 1622.2191080802127 -1.12 7.92
Aug 2022 1616.8855887405496 -0.33 6.86
Sep 2022 1594.4791409154614 -1.39 2.44
Oct 2022 1591.1778883453783 -0.21 1.06
Nov 2022 1587.8616572112087 -0.21 -0.25
Dec 2022 1604.0200260974625 1.02 1.40
Jan 2023 1612.1852500719779 0.51 1.30
Feb 2023 1624.0758881160914 0.74 2.61
Mar 2023 1626.9038753694845 0.17 1.38
Apr 2023 1629.5457540447408 0.16 0.72
May 2023 1630.7035257148568 0.07 -0.02
Jun 2023 1640.4421324691282 0.60 0.00
Jul 2023 1651.2286070716766 0.66 1.79
Aug 2023 1653.4342193189334 0.13 2.26
Sep 2023 1654.9140815462117 0.09 3.79
Oct 2023 1652.4937379791445 -0.15 3.85
Nov 2023 1656.698151136809 0.25 4.34
Dec 2023 1653.283878156494 -0.21 3.07
Jan 2024 1653.1239422211013 -0.01 2.54
Feb 2024 1662.7656780129166 0.58 2.38
Mar 2024 1667.283046067535 0.27 2.48
Apr 2024 1685.7921638693251 1.11 3.45
May 2024 1698.7638646084033 0.77 4.17
Jun 2024 1707.3526522863795 0.51 4.08
Jul 2024 1713.866906974294 0.38 3.79
Aug 2024 1709.0490998323507 -0.28 3.36
Sep 2024 1711.843930101151 0.16 3.44
Oct 2024 1712.685709358409 0.05 3.64
Nov 2024 1725.8294356967199 0.77 4.17
Dec 2024 1740.9645294174495 0.88 5.30
Jan 2025 1760.227690209674 1.11 6.48
Feb 2025 1761.43340494899 0.07 5.93
Mar 2025 1765.6487378867496 0.24 5.90
Apr 2025 1759.8866952422466 -0.33 4.39
May 2025 1759.669033093018 -0.01 3.59
Jun 2025 1759.9830571292514 0.02 3.08
Jul 2025 1766.7052519380234 0.38 3.08
Aug 2025 1783.7109795000918 0.96 4.37
Sep 2025 1797.3851058473585 0.77 5.00
Oct 2025 1810.830234692564 0.75 5.73
Nov 2025 1810.6986632771343 -0.01 4.92
Dec 2025 1809.0418904740682 -0.09 3.91
Jan 2026 1803.3874269005846 -0.31 2.45