Zip Code: 21530 (Flintstone, 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 21530 Zip Code in February 2026 was 3. The month over month percentage change (MoM) was 0.0%, and the year over year percentage change (YoY) was 0.0%.

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

The chart below shows the trend of active listing count in the 21530 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21530 - Trend of Active Listing Count of Houses
Zip Code: 21530 Trend of Active Listing Count of Houses
Items per page:
1 – 10 of 115
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 7
Sep 2016 8
Oct 2016 9
Nov 2016 9
Dec 2016 10
Jan 2017 10
Feb 2017 11
Mar 2017 9
Apr 2017 8
May 2017 10
Jun 2017 10
Jul 2017 9
Aug 2017 9 0.0 0.2857
Sep 2017 9 -0.0556 0.0625
Oct 2017 7 -0.1765 -0.1765
Nov 2017 7 0.0 -0.2222
Dec 2017 10 0.3571 0.0
Jan 2018 7 -0.2632 -0.3
Feb 2018 7 0.0 -0.3636
Mar 2018 7 0.0 -0.1765
Apr 2018 5 -0.2857 -0.375
May 2018 6 0.2 -0.4
Jun 2018 6 0.0 -0.4
Jul 2018 7 0.1667 -0.2222
Aug 2018 8 0.0714 -0.1667
Sep 2018 8 0.0667 -0.0588
Oct 2018 8 0.0 0.1429
Nov 2018 10 0.25 0.4286
Dec 2018 11 0.05 0.1053
Jan 2019 9 -0.1429 0.2857
Feb 2019 6 -0.3333 -0.1429
Mar 2019 7 0.1667 0.0
Apr 2019 6 -0.1429 0.2
May 2019 6 -0.0833 -0.0833
Jun 2019 5 -0.0909 -0.1667
Jul 2019 6 0.2 -0.1429
Aug 2019 7 0.1667 -0.0667
Sep 2019 6 -0.1429 -0.25
Oct 2019 7 0.1667 -0.125
Nov 2019 7 -0.0714 -0.35
Dec 2019 6 -0.0769 -0.4286
Jan 2020 9 0.5 0.0
Feb 2020 8 -0.1111 0.3333
Mar 2020 8 0.0 0.1429
Apr 2020 7 -0.125 0.1667
May 2020 7 0.0 0.2727
Jun 2020 5 -0.2857 0.0
Jul 2020 5 -0.1 -0.25
Aug 2020 5 0.0 -0.3571
Sep 2020 5 0.1111 -0.1667
Oct 2020 6 0.2 -0.1429
Nov 2020 5 -0.1667 -0.2308
Dec 2020 5 -0.1 -0.25
Jan 2021 4 -0.1111 -0.5556
Feb 2021 3 -0.25 -0.625
Mar 2021 2 -0.3333 -0.75
Apr 2021 2 0.0 -0.7143
May 2021 1 -0.5 -0.8571
Jun 2021 2 1.0 -0.6
Jul 2021 4 0.75 -0.2222
Aug 2021 4 0.1429 -0.1111
Sep 2021 5 0.25 0.0
Oct 2021 2 -0.6 -0.6667
Nov 2021 1 -0.5 -0.8
Dec 2021 2 1.0 -0.5556
Jan 2022 2 0.0 -0.5
Feb 2022 1 -0.5 -0.6667
Mar 2022 2 0.5 -0.25
Apr 2022 1 -0.3333 -0.5
May 2022 1 0.0 0.0
Jun 2022 3 1.5 0.25
Jul 2022 3 0.0 -0.2857
Aug 2022 3 0.2 -0.25
Sep 2022 1 -0.6667 -0.8
Oct 2022 2 1.0 0.0
Nov 2022 1 -0.5 0.0
Dec 2022 2 1.0 0.0
Jan 2023 0 -1.0 -1.0
Feb 2023 0 -1.0
Apr 2023 1 0.0
May 2023 2 1.0 1.0
Jun 2023 2 0.0 -0.2
Jul 2023 4 0.75 0.4
Aug 2023 1 -0.7143 -0.6667
Sep 2023 1 0.0 0.0
Oct 2023 1 0.0 -0.5
Nov 2023 4 2.5 2.5
Dec 2023 3 -0.1429 0.5
Jan 2024 2 -0.3333
Feb 2024 4 1.0
Mar 2024 5 0.125
Apr 2024 3 -0.3333 2.0
May 2024 3 0.0 0.5
Jun 2024 2 -0.5 -0.25
Jul 2024 2 0.3333 -0.4286
Aug 2024 3 0.5 2.0
Sep 2024 3 0.0 2.0
Oct 2024 3 0.0 2.0
Nov 2024 4 0.3333 0.1429
Dec 2024 2 -0.5 -0.3333
Jan 2025 2 0.0 0.0
Feb 2025 2 0.0 -0.5
Mar 2025 3 0.5 -0.3333
Apr 2025 3 0.0 0.0
May 2025 4 0.1667 0.1667
Jun 2025 3 -0.1429 1.0
Jul 2025 2 -0.3333 0.0
Aug 2025 2 0.0 -0.3333
Sep 2025 4 1.0 0.3333
Oct 2025 7 0.75 1.3333
Nov 2025 6 -0.1429 0.5
Dec 2025 6 0.0 2.0
Jan 2026 6 0.0 2.0
Feb 2026 3 -0.5 0.5
Mar 2026 3 0.0 0.0