Zip Code: 21231 (Baltimore, 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 21231 Zip Code in February 2026 was 52. The month over month percentage change (MoM) was 0.0098%, and the year over year percentage change (YoY) was -0.1488%.

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

The chart below shows the trend of active listing count in the 21231 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21231 - Trend of Active Listing Count of Houses
Zip Code: 21231 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 150
Sep 2016 147
Oct 2016 151
Nov 2016 146
Dec 2016 142
Jan 2017 124
Feb 2017 122
Mar 2017 93
Apr 2017 98
May 2017 123
Jun 2017 135
Jul 2017 131
Aug 2017 126 -0.0345 -0.16
Sep 2017 130 0.0317 -0.1126
Oct 2017 129 -0.0077 -0.1457
Nov 2017 135 0.0426 -0.0788
Dec 2017 136 0.0074 -0.0424
Jan 2018 115 -0.1513 -0.0726
Feb 2018 106 -0.0826 -0.1317
Mar 2018 109 0.0332 0.172
Apr 2018 129 0.1835 0.3163
May 2018 151 0.1705 0.2276
Jun 2018 162 0.0695 0.1963
Jul 2018 177 0.096 0.3563
Aug 2018 187 0.0565 0.4841
Sep 2018 173 -0.0749 0.3308
Oct 2018 182 0.052 0.4109
Nov 2018 196 0.0742 0.4535
Dec 2018 177 -0.0972 0.3026
Jan 2019 156 -0.1161 0.3565
Feb 2019 141 -0.0994 0.3318
Mar 2019 136 -0.0356 0.2431
Apr 2019 160 0.1808 0.2403
May 2019 183 0.1438 0.2119
Jun 2019 191 0.0437 0.1827
Jul 2019 188 -0.0157 0.0621
Aug 2019 175 -0.0718 -0.0668
Sep 2019 171 -0.0201 -0.0116
Oct 2019 169 -0.0117 -0.0714
Nov 2019 170 0.003 -0.133
Dec 2019 164 -0.0324 -0.0708
Jan 2020 127 -0.2287 -0.1891
Feb 2020 108 -0.1502 -0.2349
Mar 2020 92 -0.1442 -0.321
Apr 2020 111 0.2065 -0.3063
May 2020 108 -0.027 -0.4098
Jun 2020 115 0.0648 -0.3979
Jul 2020 106 -0.0826 -0.4388
Aug 2020 110 0.0427 -0.3696
Sep 2020 103 -0.0636 -0.3977
Oct 2020 103 -0.0049 -0.3935
Nov 2020 124 0.2098 -0.2684
Dec 2020 122 -0.0161 -0.2561
Jan 2021 98 -0.2008 -0.2292
Feb 2021 87 -0.1077 -0.1907
Mar 2021 64 -0.2701 -0.3098
Apr 2021 66 0.0315 -0.4099
May 2021 68 0.0305 -0.375
Jun 2021 79 0.1704 -0.313
Jul 2021 86 0.0823 -0.1896
Aug 2021 93 0.0877 -0.1545
Sep 2021 108 0.1559 0.0437
Oct 2021 109 0.0093 0.0585
Nov 2021 102 -0.0599 -0.1774
Dec 2021 89 -0.1275 -0.2705
Jan 2022 73 -0.1798 -0.2513
Feb 2022 57 -0.2192 -0.3448
Mar 2022 48 -0.1667 -0.252
Apr 2022 41 -0.1368 -0.374
May 2022 50 0.2195 -0.2593
Jun 2022 61 0.22 -0.2278
Jul 2022 73 0.1967 -0.1462
Aug 2022 84 0.1507 -0.0968
Sep 2022 88 0.0417 -0.186
Oct 2022 87 -0.0057 -0.1982
Nov 2022 81 -0.069 -0.2059
Dec 2022 70 -0.142 -0.2191
Jan 2023 46 -0.3381 -0.3699
Feb 2023 39 -0.163 -0.3246
Mar 2023 43 0.1039 -0.1053
Apr 2023 40 -0.0588 -0.0244
May 2023 43 0.075 -0.14
Jun 2023 36 -0.1744 -0.418
Jul 2023 37 0.0423 -0.4932
Aug 2023 41 0.1081 -0.5119
Sep 2023 43 0.0488 -0.5086
Oct 2023 53 0.2326 -0.3908
Nov 2023 58 0.0943 -0.284
Dec 2023 61 0.0517 -0.1223
Jan 2024 42 -0.3115 -0.087
Feb 2024 36 -0.1548 -0.0779
Mar 2024 37 0.0423 -0.1294
Apr 2024 38 0.027 -0.05
May 2024 43 0.1184 -0.0116
Jun 2024 44 0.0353 0.2394
Jul 2024 57 0.2955 0.5405
Aug 2024 64 0.1228 0.561
Sep 2024 71 0.1094 0.6512
Oct 2024 81 0.1408 0.5283
Nov 2024 92 0.1358 0.5862
Dec 2024 87 -0.0543 0.4262
Jan 2025 64 -0.2701 0.5119
Feb 2025 58 -0.0945 0.6197
Mar 2025 61 0.0522 0.6351
Apr 2025 64 0.0579 0.6842
May 2025 76 0.1797 0.7765
Jun 2025 70 -0.0728 0.5909
Jul 2025 61 -0.1286 0.0702
Aug 2025 59 -0.0328 -0.0781
Sep 2025 58 -0.0169 -0.1831
Oct 2025 67 0.1552 -0.1728
Nov 2025 63 -0.0672 -0.3207
Dec 2025 63 0.008 -0.2759
Jan 2026 60 -0.0476 -0.0551
Feb 2026 51 -0.15 -0.113
Mar 2026 52 0.0098 -0.1488