Zip Code: 21104 (Marriottsville, 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 21104 Zip Code in February 2026 was 5. The month over month percentage change (MoM) was -0.1%, and the year over year percentage change (YoY) was -0.25%.

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

The chart below shows the trend of active listing count in the 21104 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21104 - Trend of Active Listing Count of Houses
Zip Code: 21104 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 36
Sep 2016 42
Oct 2016 42
Nov 2016 34
Dec 2016 28
Jan 2017 26
Feb 2017 23
Mar 2017 20
Apr 2017 19
May 2017 18
Jun 2017 20
Jul 2017 23
Aug 2017 23 0.0222 -0.3611
Sep 2017 22 -0.0652 -0.4819
Oct 2017 20 -0.0698 -0.5181
Nov 2017 19 -0.05 -0.4412
Dec 2017 18 -0.0789 -0.3636
Jan 2018 13 -0.2571 -0.5
Feb 2018 9 -0.3462 -0.6304
Mar 2018 9 0.0 -0.575
Apr 2018 12 0.4118 -0.3684
May 2018 14 0.125 -0.25
Jun 2018 22 0.5926 0.1026
Jul 2018 25 0.1628 0.1111
Aug 2018 25 0.0 0.087
Sep 2018 27 0.06 0.2326
Oct 2018 25 -0.0566 0.25
Nov 2018 26 0.02 0.3421
Dec 2018 26 0.0 0.4571
Jan 2019 19 -0.2549 0.4615
Feb 2019 20 0.0263 1.2941
Mar 2019 16 -0.1795 0.8824
Apr 2019 19 0.1875 0.5833
May 2019 26 0.3421 0.8889
Jun 2019 27 0.0588 0.2558
Jul 2019 23 -0.1481 -0.08
Aug 2019 21 -0.1087 -0.18
Sep 2019 21 0.0244 -0.2075
Oct 2019 20 -0.0476 -0.2
Nov 2019 20 -0.025 -0.2353
Dec 2019 16 -0.1795 -0.3725
Jan 2020 14 -0.1563 -0.2895
Feb 2020 11 -0.1852 -0.4359
Mar 2020 9 -0.1818 -0.4375
Apr 2020 9 -0.0556 -0.5526
May 2020 11 0.2353 -0.5882
Jun 2020 14 0.3333 -0.4815
Jul 2020 19 0.3571 -0.1739
Aug 2020 13 -0.3158 -0.3659
Sep 2020 16 0.2308 -0.2381
Oct 2020 12 -0.25 -0.4
Nov 2020 10 -0.1667 -0.4872
Dec 2020 7 -0.3 -0.5625
Jan 2021 6 -0.1429 -0.5556
Feb 2021 5 -0.1667 -0.5455
Mar 2021 4 -0.2 -0.5556
Apr 2021 4 0.0 -0.5294
May 2021 7 0.625 -0.381
Jun 2021 5 -0.2308 -0.6429
Jul 2021 7 0.3 -0.6579
Aug 2021 4 -0.3846 -0.6923
Sep 2021 6 0.5 -0.625
Oct 2021 8 0.25 -0.375
Nov 2021 3 -0.6 -0.7
Dec 2021 1 -0.6667 -0.8571
Jan 2022 2 1.0 -0.6667
Feb 2022 1 -0.5 -0.8
Mar 2022 2 0.5 -0.625
Apr 2022 4 1.3333 -0.125
May 2022 5 0.4286 -0.2308
Jun 2022 8 0.5 0.5
Jul 2022 10 0.2667 0.4615
Aug 2022 8 -0.1579 1.0
Sep 2022 7 -0.125 0.1667
Oct 2022 3 -0.5714 -0.6
Nov 2022 5 0.6667 0.6667
Dec 2022 6 0.1 4.5
Jan 2023 5 -0.0909 1.5
Feb 2023 5 -0.1 3.5
Mar 2023 3 -0.3333 1.0
Apr 2023 3 -0.1667 -0.2857
May 2023 2 -0.4 -0.7
Jun 2023 4 1.6667 -0.4667
Jul 2023 8 1.0 -0.1579
Aug 2023 5 -0.375 -0.375
Sep 2023 5 0.0 -0.2857
Oct 2023 7 0.4 1.3333
Nov 2023 7 0.0 0.4
Dec 2023 10 0.4286 0.8182
Jan 2024 7 -0.3 0.4
Feb 2024 8 0.0714 0.6667
Mar 2024 4 -0.4667 0.3333
Apr 2024 5 0.25 1.0
May 2024 7 0.4 3.6667
Jun 2024 5 -0.3571 0.125
Jul 2024 8 0.7778 0.0
Aug 2024 6 -0.3125 0.1
Sep 2024 5 -0.0909 0.0
Oct 2024 9 0.7 0.2143
Nov 2024 10 0.1765 0.4286
Dec 2024 5 -0.5 -0.5
Jan 2025 4 -0.3 -0.5
Feb 2025 5 0.2857 -0.4
Mar 2025 6 0.3333 0.5
Apr 2025 6 0.0 0.2
May 2025 10 0.6667 0.4286
Jun 2025 16 0.6 2.5556
Jul 2025 14 -0.125 0.75
Aug 2025 15 0.0357 1.6364
Sep 2025 12 -0.1724 1.4
Oct 2025 12 0.0 0.4118
Nov 2025 13 0.0417 0.25
Dec 2025 11 -0.12 1.2
Jan 2026 6 -0.4545 0.7143
Feb 2026 5 -0.1667 0.1111
Mar 2026 5 -0.1 -0.25