Zip Code: 21128 (Perry Hall, 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 21128 Zip Code in February 2026 was 32. The month over month percentage change (MoM) was -0.125%, and the year over year percentage change (YoY) was 0.75%.

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

The chart below shows the trend of active listing count in the 21128 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21128 - Trend of Active Listing Count of Houses
Zip Code: 21128 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 71
Sep 2016 72
Oct 2016 81
Nov 2016 74
Dec 2016 73
Jan 2017 61
Feb 2017 54
Mar 2017 51
Apr 2017 57
May 2017 48
Jun 2017 59
Jul 2017 61
Aug 2017 66 0.0909 -0.0704
Sep 2017 69 0.0379 -0.0486
Oct 2017 71 0.0365 -0.118
Nov 2017 74 0.0423 0.0
Dec 2017 71 -0.0473 -0.0276
Jan 2018 60 -0.1489 -0.0164
Feb 2018 55 -0.0833 0.028
Mar 2018 52 -0.0545 0.0297
Apr 2018 63 0.2115 0.1053
May 2018 63 -0.0079 0.3021
Jun 2018 71 0.128 0.1949
Jul 2018 73 0.0355 0.2066
Aug 2018 76 0.0342 0.1439
Sep 2018 77 0.0199 0.1241
Oct 2018 79 0.026 0.1127
Nov 2018 74 -0.0696 -0.0068
Dec 2018 67 -0.0952 -0.0567
Jan 2019 54 -0.188 -0.1
Feb 2019 50 -0.0833 -0.1
Mar 2019 42 -0.1616 -0.2019
Apr 2019 44 0.0602 -0.3016
May 2019 46 0.0341 -0.272
Jun 2019 48 0.044 -0.3262
Jul 2019 52 0.0947 -0.2877
Aug 2019 58 0.1154 -0.2318
Sep 2019 60 0.0345 -0.2208
Oct 2019 59 -0.0167 -0.2532
Nov 2019 56 -0.0593 -0.2449
Dec 2019 50 -0.0991 -0.2481
Jan 2020 39 -0.22 -0.2778
Feb 2020 28 -0.2949 -0.4444
Mar 2020 24 -0.1273 -0.4217
Apr 2020 29 0.1875 -0.3523
May 2020 26 -0.1053 -0.4396
Jun 2020 27 0.0588 -0.4316
Jul 2020 26 -0.0556 -0.5096
Aug 2020 22 -0.1569 -0.6293
Sep 2020 28 0.3023 -0.5333
Oct 2020 26 -0.0714 -0.5593
Nov 2020 20 -0.2308 -0.6396
Dec 2020 24 0.175 -0.53
Jan 2021 17 -0.2766 -0.5641
Feb 2021 10 -0.4118 -0.6364
Mar 2021 10 0.0 -0.5833
Apr 2021 10 0.0 -0.6491
May 2021 11 0.05 -0.5882
Jun 2021 14 0.3333 -0.4815
Jul 2021 17 0.1786 -0.3529
Aug 2021 14 -0.1515 -0.3488
Sep 2021 15 0.0714 -0.4643
Oct 2021 12 -0.2333 -0.5577
Nov 2021 14 0.2174 -0.3
Dec 2021 15 0.0714 -0.3617
Jan 2022 10 -0.3667 -0.4412
Feb 2022 5 -0.4737 -0.5
Mar 2022 4 -0.3 -0.65
Apr 2022 7 0.8571 -0.35
May 2022 10 0.5385 -0.0476
Jun 2022 13 0.25 -0.1071
Jul 2022 11 -0.12 -0.3333
Aug 2022 16 0.4545 0.1429
Sep 2022 23 0.4063 0.5
Oct 2022 24 0.0444 1.0435
Nov 2022 24 0.0213 0.7143
Dec 2022 21 -0.125 0.4
Jan 2023 13 -0.381 0.3684
Feb 2023 14 0.0385 1.7
Mar 2023 12 -0.1111 2.4286
Apr 2023 9 -0.25 0.3846
May 2023 10 0.1111 0.0
Jun 2023 16 0.55 0.24
Jul 2023 15 -0.0645 0.3182
Aug 2023 17 0.1724 0.0625
Sep 2023 22 0.2647 -0.0444
Oct 2023 19 -0.1163 -0.1915
Nov 2023 21 0.1053 -0.125
Dec 2023 22 0.0476 0.0476
Jan 2024 15 -0.3182 0.1538
Feb 2024 17 0.1333 0.2593
Mar 2024 16 -0.0882 0.2917
Apr 2024 15 -0.0323 0.6667
May 2024 14 -0.0667 0.4
Jun 2024 13 -0.1071 -0.1935
Jul 2024 14 0.12 -0.0345
Aug 2024 17 0.1786 -0.0294
Sep 2024 15 -0.0909 -0.3023
Oct 2024 10 -0.3333 -0.4737
Nov 2024 18 0.8 -0.1429
Dec 2024 23 0.2778 0.0455
Jan 2025 19 -0.1957 0.2333
Feb 2025 16 -0.1351 -0.0588
Mar 2025 18 0.125 0.1613
Apr 2025 15 -0.1667 0.0
May 2025 21 0.3667 0.4643
Jun 2025 26 0.2683 1.08
Jul 2025 35 0.3269 1.4643
Aug 2025 30 -0.1304 0.8182
Sep 2025 30 0.0 1.0
Oct 2025 40 0.3167 2.95
Nov 2025 55 0.3797 2.0278
Dec 2025 61 0.1193 1.6522
Jan 2026 50 -0.1803 1.7027
Feb 2026 36 -0.28 1.25
Mar 2026 32 -0.125 0.75