Zip Code: 21030 (Cockeysville, 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 21030 Zip Code in February 2026 was 14. The month over month percentage change (MoM) was -0.325%, and the year over year percentage change (YoY) was -0.3077%.

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

The chart below shows the trend of active listing count in the 21030 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21030 - Trend of Active Listing Count of Houses
Zip Code: 21030 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 102
Sep 2016 100
Oct 2016 99
Nov 2016 99
Dec 2016 85
Jan 2017 67
Feb 2017 54
Mar 2017 57
Apr 2017 61
May 2017 68
Jun 2017 72
Jul 2017 74
Aug 2017 68 -0.0811 -0.3333
Sep 2017 71 0.0441 -0.2864
Oct 2017 79 0.1127 -0.202
Nov 2017 78 -0.0127 -0.2121
Dec 2017 72 -0.0833 -0.1588
Jan 2018 57 -0.2028 -0.1493
Feb 2018 47 -0.1754 -0.1296
Mar 2018 43 -0.0851 -0.2389
Apr 2018 48 0.1163 -0.2066
May 2018 50 0.0417 -0.2647
Jun 2018 59 0.18 -0.1806
Jul 2018 61 0.0339 -0.1757
Aug 2018 62 0.0164 -0.0882
Sep 2018 63 0.0161 -0.1127
Oct 2018 68 0.0794 -0.1392
Nov 2018 73 0.0662 -0.0705
Dec 2018 67 -0.0828 -0.0699
Jan 2019 45 -0.3233 -0.2105
Feb 2019 36 -0.2 -0.234
Mar 2019 41 0.1389 -0.0465
Apr 2019 45 0.0976 -0.0625
May 2019 53 0.1667 0.05
Jun 2019 59 0.1143 -0.0085
Jul 2019 65 0.1111 0.0656
Aug 2019 66 0.0077 0.0565
Sep 2019 68 0.0382 0.0794
Oct 2019 69 0.0147 0.0147
Nov 2019 70 0.0072 -0.0414
Dec 2019 65 -0.0647 -0.0226
Jan 2020 58 -0.1077 0.2889
Feb 2020 45 -0.2241 0.25
Mar 2020 43 -0.0444 0.0488
Apr 2020 48 0.1163 0.0667
May 2020 42 -0.125 -0.2
Jun 2020 44 0.0476 -0.2479
Jul 2020 52 0.1705 -0.2077
Aug 2020 44 -0.1553 -0.3359
Sep 2020 36 -0.1724 -0.4706
Oct 2020 34 -0.0694 -0.5145
Nov 2020 31 -0.0746 -0.554
Dec 2020 30 -0.0484 -0.5462
Jan 2021 21 -0.2881 -0.6379
Feb 2021 19 -0.0952 -0.5778
Mar 2021 13 -0.3421 -0.7093
Apr 2021 14 0.08 -0.7188
May 2021 20 0.4815 -0.5238
Jun 2021 18 -0.1 -0.5909
Jul 2021 24 0.3333 -0.534
Aug 2021 29 0.2083 -0.3333
Sep 2021 34 0.1552 -0.0694
Oct 2021 34 0.0 0.0
Nov 2021 39 0.1642 0.2581
Dec 2021 29 -0.2692 -0.0339
Jan 2022 22 -0.2281 0.0476
Feb 2022 15 -0.3182 -0.2105
Mar 2022 14 -0.0667 0.12
Apr 2022 21 0.5 0.5556
May 2022 20 -0.0476 0.0
Jun 2022 24 0.175 0.3056
Jul 2022 28 0.1702 0.1458
Aug 2022 27 -0.0182 -0.069
Sep 2022 34 0.2407 0.0
Oct 2022 32 -0.0597 -0.0597
Nov 2022 35 0.1111 -0.1026
Dec 2022 37 0.0429 0.2807
Jan 2023 32 -0.1233 0.4545
Feb 2023 26 -0.2031 0.7
Mar 2023 23 -0.1176 0.6071
Apr 2023 23 0.0 0.0714
May 2023 24 0.0667 0.2
Jun 2023 30 0.2292 0.2553
Jul 2023 31 0.0508 0.1273
Aug 2023 28 -0.0968 0.037
Sep 2023 23 -0.1964 -0.3284
Oct 2023 25 0.1111 -0.2063
Nov 2023 23 -0.1 -0.3571
Dec 2023 20 -0.1111 -0.4521
Jan 2024 18 -0.1 -0.4375
Feb 2024 16 -0.1111 -0.3725
Mar 2024 16 -0.0313 -0.3111
Apr 2024 16 0.0323 -0.2889
May 2024 18 0.125 -0.25
Jun 2024 21 0.1667 -0.2881
Jul 2024 22 0.0476 -0.2903
Aug 2024 21 -0.0682 -0.2679
Sep 2024 21 0.0244 -0.0667
Oct 2024 14 -0.3333 -0.44
Nov 2024 19 0.3214 -0.1778
Dec 2024 21 0.1351 0.05
Jan 2025 21 -0.0238 0.1389
Feb 2025 23 0.0976 0.4063
Mar 2025 20 -0.1333 0.2581
Apr 2025 18 -0.0769 0.125
May 2025 29 0.5833 0.5833
Jun 2025 29 0.0175 0.381
Jul 2025 31 0.069 0.4091
Aug 2025 29 -0.0806 0.3902
Sep 2025 33 0.1579 0.5714
Oct 2025 39 0.1818 1.7857
Nov 2025 31 -0.2051 0.6757
Dec 2025 25 -0.1935 0.1905
Jan 2026 18 -0.28 -0.122
Feb 2026 20 0.1111 -0.1111
Mar 2026 14 -0.325 -0.3077