Zip Code: 21220 (Middle River, MD) - Trend of Active Listing Count of Houses (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the active listing count of houses in the 21220 Zip Code in February 2026 was 63. The month over month percentage change (MoM) was -0.0672%, and the year over year percentage change (YoY) was 0.1468%.

You can see similar for other Maryland Zip Codes, and for Maryland.

The chart below shows the trend of active listing count in the 21220 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21220 - Trend of Active Listing Count of Houses
Zip Code: 21220 Trend of Active Listing Count of Houses
Items per page:
1 – 10 of 116
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 165
Sep 2016 155
Oct 2016 162
Nov 2016 161
Dec 2016 156
Jan 2017 130
Feb 2017 121
Mar 2017 101
Apr 2017 105
May 2017 104
Jun 2017 129
Jul 2017 128
Aug 2017 138 0.0781 -0.1636
Sep 2017 148 0.0688 -0.0453
Oct 2017 143 -0.0305 -0.1173
Nov 2017 142 -0.007 -0.118
Dec 2017 148 0.0387 -0.0514
Jan 2018 133 -0.0983 0.0231
Feb 2018 136 0.0188 0.1245
Mar 2018 132 -0.0295 0.302
Apr 2018 145 0.1027 0.381
May 2018 165 0.1379 0.5865
Jun 2018 154 -0.0667 0.1938
Jul 2018 153 -0.0065 0.1953
Aug 2018 143 -0.0654 0.0362
Sep 2018 143 0.0 -0.0305
Oct 2018 146 0.021 0.021
Nov 2018 145 -0.0103 0.0176
Dec 2018 137 -0.0554 -0.0746
Jan 2019 125 -0.0842 -0.0602
Feb 2019 106 -0.156 -0.2214
Mar 2019 101 -0.0427 -0.2319
Apr 2019 108 0.0693 -0.2552
May 2019 119 0.1019 -0.2788
Jun 2019 130 0.0882 -0.1591
Jul 2019 136 0.0502 -0.1111
Aug 2019 134 -0.0184 -0.0664
Sep 2019 133 -0.0037 -0.0699
Oct 2019 128 -0.0414 -0.1267
Nov 2019 119 -0.0706 -0.1799
Dec 2019 109 -0.0802 -0.2015
Jan 2020 89 -0.1881 -0.292
Feb 2020 81 -0.0847 -0.2322
Mar 2020 85 0.0494 -0.1584
Apr 2020 88 0.0294 -0.1898
May 2020 80 -0.0857 -0.3277
Jun 2020 86 0.075 -0.3359
Jul 2020 64 -0.2558 -0.5294
Aug 2020 59 -0.0859 -0.5618
Sep 2020 51 -0.1282 -0.6165
Oct 2020 56 0.098 -0.5608
Nov 2020 60 0.0714 -0.4937
Dec 2020 57 -0.0583 -0.4817
Jan 2021 54 -0.0531 -0.3955
Feb 2021 44 -0.1776 -0.4568
Mar 2021 30 -0.3295 -0.6529
Apr 2021 34 0.1356 -0.6171
May 2021 40 0.1791 -0.5063
Jun 2021 56 0.4177 -0.3488
Jul 2021 59 0.0446 -0.0859
Aug 2021 55 -0.0598 -0.0598
Sep 2021 64 0.1636 0.2549
Oct 2021 65 0.0078 0.1518
Nov 2021 56 -0.1318 -0.0667
Dec 2021 48 -0.1429 -0.1504
Jan 2022 49 0.0104 -0.0935
Feb 2022 37 -0.2371 -0.1591
Mar 2022 30 -0.1892 0.0169
Apr 2022 40 0.3333 0.194
May 2022 46 0.15 0.1646
Jun 2022 52 0.1196 -0.0804
Jul 2022 55 0.068 -0.0598
Aug 2022 57 0.0364 0.0364
Sep 2022 57 0.0 -0.1094
Oct 2022 64 0.114 -0.0155
Nov 2022 69 0.0866 0.2321
Dec 2022 64 -0.0725 0.3333
Jan 2023 61 -0.0469 0.2577
Feb 2023 55 -0.1066 0.473
Mar 2023 37 -0.3211 0.2333
Apr 2023 36 -0.0405 -0.1125
May 2023 40 0.1268 -0.1304
Jun 2023 39 -0.025 -0.2427
Jul 2023 41 0.0385 -0.2636
Aug 2023 50 0.2346 -0.1228
Sep 2023 47 -0.06 -0.1754
Oct 2023 52 0.1064 -0.1811
Nov 2023 65 0.2404 -0.0652
Dec 2023 64 -0.0078 0.0
Jan 2024 43 -0.3281 -0.2951
Feb 2024 42 -0.0349 -0.2385
Mar 2024 51 0.2169 0.3649
Apr 2024 49 -0.0297 0.3803
May 2024 50 0.0102 0.2375
Jun 2024 62 0.2424 0.5769
Jul 2024 63 0.0244 0.5556
Aug 2024 69 0.0952 0.38
Sep 2024 83 0.2029 0.766
Oct 2024 88 0.0602 0.6923
Nov 2024 83 -0.0568 0.2868
Dec 2024 84 0.012 0.3125
Jan 2025 66 -0.2202 0.5233
Feb 2025 56 -0.145 0.3494
Mar 2025 55 -0.0268 0.0792
Apr 2025 48 -0.1193 -0.0204
May 2025 60 0.25 0.2121
Jun 2025 71 0.1833 0.1545
Jul 2025 68 -0.0423 0.0794
Aug 2025 71 0.0368 0.0217
Sep 2025 85 0.2057 0.0241
Oct 2025 80 -0.0588 -0.0909
Nov 2025 86 0.0688 0.0301
Dec 2025 90 0.0526 0.0714
Jan 2026 68 -0.2444 0.0382
Feb 2026 67 -0.0147 0.1964
Mar 2026 63 -0.0672 0.1468