Zip Code: 21234 (Parkville, 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 21234 Zip Code in February 2026 was 79. The month over month percentage change (MoM) was -0.1023%, and the year over year percentage change (YoY) was 0.1127%.

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

The chart below shows the trend of active listing count in the 21234 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21234 - Trend of Active Listing Count of Houses
Zip Code: 21234 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 265
Sep 2016 260
Oct 2016 273
Nov 2016 263
Dec 2016 249
Jan 2017 223
Feb 2017 199
Mar 2017 170
Apr 2017 168
May 2017 177
Jun 2017 211
Jul 2017 224
Aug 2017 223 -0.0045 -0.1585
Sep 2017 223 -0.0022 -0.1426
Oct 2017 214 -0.0382 -0.2147
Nov 2017 220 0.0257 -0.1654
Dec 2017 212 -0.0364 -0.1506
Jan 2018 173 -0.182 -0.2242
Feb 2018 150 -0.1358 -0.2487
Mar 2018 142 -0.0535 -0.1676
Apr 2018 148 0.0459 -0.119
May 2018 161 0.0845 -0.0932
Jun 2018 167 0.0405 -0.2085
Jul 2018 163 -0.024 -0.2723
Aug 2018 176 0.0767 -0.213
Sep 2018 184 0.0456 -0.1753
Oct 2018 196 0.0681 -0.0841
Nov 2018 226 0.1531 0.0296
Dec 2018 216 -0.0442 0.0213
Jan 2019 177 -0.1806 0.0231
Feb 2019 151 -0.1497 0.0067
Mar 2019 137 -0.093 -0.0353
Apr 2019 159 0.1648 0.0743
May 2019 178 0.1164 0.1059
Jun 2019 183 0.031 0.0958
Jul 2019 170 -0.071 0.0429
Aug 2019 154 -0.0971 -0.1254
Sep 2019 156 0.0163 -0.1499
Oct 2019 167 0.0705 -0.148
Nov 2019 174 0.0419 -0.2301
Dec 2019 158 -0.092 -0.2685
Jan 2020 147 -0.0728 -0.1723
Feb 2020 121 -0.1741 -0.196
Mar 2020 99 -0.1818 -0.2747
Apr 2020 123 0.2424 -0.2264
May 2020 115 -0.065 -0.3521
Jun 2020 101 -0.1217 -0.4481
Jul 2020 81 -0.203 -0.5265
Aug 2020 68 -0.1553 -0.557
Sep 2020 62 -0.0882 -0.6026
Oct 2020 71 0.1452 -0.5749
Nov 2020 67 -0.0563 -0.6149
Dec 2020 62 -0.0746 -0.6076
Jan 2021 58 -0.0726 -0.6075
Feb 2021 52 -0.0957 -0.5702
Mar 2021 35 -0.3269 -0.6465
Apr 2021 38 0.0714 -0.6951
May 2021 36 -0.04 -0.687
Jun 2021 48 0.3333 -0.5248
Jul 2021 63 0.3125 -0.2174
Aug 2021 78 0.2381 0.1471
Sep 2021 74 -0.0577 0.1855
Oct 2021 75 0.0136 0.0493
Nov 2021 68 -0.0872 0.0149
Dec 2021 55 -0.1985 -0.121
Jan 2022 51 -0.0734 -0.1217
Feb 2022 37 -0.2673 -0.2885
Mar 2022 40 0.0811 0.1429
Apr 2022 44 0.0875 0.16
May 2022 47 0.0805 0.3056
Jun 2022 49 0.0319 0.0104
Jul 2022 54 0.1031 -0.1508
Aug 2022 64 0.1963 -0.1795
Sep 2022 64 -0.0078 -0.1361
Oct 2022 60 -0.063 -0.2013
Nov 2022 78 0.3109 0.1471
Dec 2022 74 -0.0513 0.3578
Jan 2023 65 -0.1216 0.2871
Feb 2023 59 -0.0923 0.5946
Mar 2023 42 -0.2881 0.05
Apr 2023 35 -0.1786 -0.2069
May 2023 33 -0.0435 -0.2979
Jun 2023 37 0.1061 -0.2474
Jul 2023 44 0.2055 -0.1776
Aug 2023 47 0.0682 -0.2656
Sep 2023 45 -0.0532 -0.2992
Oct 2023 49 0.1011 -0.1765
Nov 2023 63 0.2857 -0.1923
Dec 2023 54 -0.1429 -0.2703
Jan 2024 42 -0.2222 -0.3538
Feb 2024 45 0.0595 -0.2458
Mar 2024 46 0.0337 0.0952
Apr 2024 47 0.0217 0.3623
May 2024 53 0.1277 0.6061
Jun 2024 59 0.1038 0.6027
Jul 2024 67 0.1453 0.5227
Aug 2024 64 -0.0522 0.3511
Sep 2024 73 0.1496 0.6404
Oct 2024 74 0.0137 0.5102
Nov 2024 97 0.3041 0.5317
Dec 2024 91 -0.057 0.6852
Jan 2025 84 -0.0824 0.9881
Feb 2025 83 -0.012 0.8539
Mar 2025 71 -0.1394 0.5435
Apr 2025 77 0.0845 0.6383
May 2025 92 0.1948 0.7358
Jun 2025 90 -0.0217 0.5385
Jul 2025 97 0.0722 0.4403
Aug 2025 89 -0.0829 0.3937
Sep 2025 97 0.096 0.3288
Oct 2025 115 0.1856 0.5541
Nov 2025 109 -0.0565 0.1244
Dec 2025 107 -0.0138 0.1758
Jan 2026 96 -0.1075 0.1437
Feb 2026 88 -0.0785 0.0667
Mar 2026 79 -0.1023 0.1127