Zip Code: 21771 (Mount Airy, MD) - Trend of House - Median Days on Market (Realtor)

Updated on March 13, 2026.

According to data from Realtor.com, the median days on market for houses in the 21771 Zip Code in February 2026 was 25 days. The month over month percentage change (MoM) was -0.3797%, and the year over year percentage change (YoY) was -0.6142%.

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

The chart below shows the trend of the median days on market for houses in the 21771 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21771 - Trend of House - Median Days on Market
Zip Code: 21771 Trend of House - Median Days on Market
Items per page:
1 – 10 of 116
Month Med. Days on Market MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 45
Sep 2016 57
Oct 2016 58
Nov 2016 57
Dec 2016 69
Jan 2017 84
Feb 2017 87
Mar 2017 58
Apr 2017 42
May 2017 38
Jun 2017 33
Jul 2017 45
Aug 2017 39 -0.1381 -0.1333
Sep 2017 49 0.2436 -0.1528
Oct 2017 53 0.0825 -0.0948
Nov 2017 46 -0.1333 -0.2018
Dec 2017 68 0.489 -0.0109
Jan 2018 74 0.0923 -0.1138
Feb 2018 97 0.3142 0.1178
Mar 2018 101 0.0386 0.7414
Apr 2018 41 -0.599 -0.0299
May 2018 37 -0.0926 -0.0329
Jun 2018 38 0.034 0.1515
Jul 2018 44 0.1579 -0.0276
Aug 2018 53 0.1932 0.3462
Sep 2018 51 -0.0286 0.0515
Oct 2018 51 0.0 -0.0286
Nov 2018 63 0.2402 0.3901
Dec 2018 59 -0.0751 -0.1365
Jan 2019 67 0.1453 -0.0946
Feb 2019 90 0.3433 -0.0746
Mar 2019 88 -0.0278 -0.1337
Apr 2019 64 -0.2686 0.5802
May 2019 32 -0.5 -0.1293
Jun 2019 37 0.1406 -0.0395
Jul 2019 38 0.0411 -0.1364
Aug 2019 51 0.3289 -0.0381
Sep 2019 50 -0.0099 -0.0196
Oct 2019 56 0.11 0.0882
Nov 2019 58 0.045 -0.083
Dec 2019 63 0.0862 0.0769
Jan 2020 74 0.1746 0.1045
Feb 2020 80 0.0743 -0.1167
Mar 2020 40 -0.4969 -0.5429
Apr 2020 40 -0.0063 -0.3789
May 2020 44 0.1006 0.3672
Jun 2020 36 -0.1771 -0.0137
Jul 2020 36 0.0 -0.0526
Aug 2020 49 0.3472 -0.0396
Sep 2020 42 -0.134 -0.16
Oct 2020 27 -0.3571 -0.5135
Nov 2020 39 0.4259 -0.3362
Dec 2020 39 0.0065 -0.3849
Jan 2021 47 0.2194 -0.3615
Feb 2021 49 0.0265 -0.3899
Mar 2021 41 -0.1546 0.025
Apr 2021 18 -0.5671 -0.5535
May 2021 18 -0.0141 -0.6
Jun 2021 23 0.3143 -0.3611
Jul 2021 31 0.3478 -0.1389
Aug 2021 32 0.0161 -0.3505
Sep 2021 40 0.254 -0.0595
Oct 2021 39 -0.0253 0.4259
Nov 2021 33 -0.1429 -0.1429
Dec 2021 41 0.2348 0.0516
Jan 2022 38 -0.0675 -0.1958
Feb 2022 39 0.0132 -0.2062
Mar 2022 25 -0.3636 -0.4024
Apr 2022 17 -0.3061 -0.0423
May 2022 27 0.5882 0.5429
Jun 2022 33 0.2037 0.413
Jul 2022 25 -0.2231 -0.1855
Aug 2022 32 0.2673 0.0159
Sep 2022 30 -0.0781 -0.2532
Oct 2022 38 0.2966 -0.0065
Nov 2022 31 -0.2026 -0.0758
Dec 2022 36 0.1803 -0.1166
Jan 2023 51 0.4167 0.3421
Feb 2023 68 0.3235 0.7532
Mar 2023 55 -0.1926 1.2245
Apr 2023 39 -0.2936 1.2647
May 2023 37 -0.039 0.3704
Jun 2023 28 -0.2432 -0.1385
Jul 2023 30 0.0536 0.1683
Aug 2023 28 -0.0508 -0.125
Sep 2023 25 -0.0982 -0.1441
Oct 2023 32 0.2475 -0.1765
Nov 2023 32 0.0 0.0328
Dec 2023 38 0.1905 0.0417
Jan 2024 36 -0.04 -0.2941
Feb 2024 34 -0.0625 -0.5
Mar 2024 25 -0.2667 -0.5459
Apr 2024 30 0.2121 -0.2208
May 2024 38 0.25 0.0135
Jun 2024 17 -0.5533 -0.4018
Jul 2024 22 0.3134 -0.2542
Aug 2024 25 0.125 -0.1161
Sep 2024 28 0.1111 0.0891
Oct 2024 31 0.1364 -0.0079
Nov 2024 33 0.04 0.0317
Dec 2024 30 -0.0769 -0.2
Jan 2025 17 -0.425 -0.5208
Feb 2025 41 1.3478 0.2
Mar 2025 64 0.5679 1.5657
Apr 2025 43 -0.3307 0.4167
May 2025 23 -0.4588 -0.3867
Jun 2025 24 0.0217 0.403
Jul 2025 30 0.2872 0.375
Aug 2025 35 0.157 0.4141
Sep 2025 44 0.2571 0.6
Oct 2025 26 -0.4205 -0.184
Nov 2025 36 0.4118 0.1077
Dec 2025 34 -0.0556 0.1333
Jan 2026 49 0.4265 1.8116
Feb 2026 40 -0.1856 -0.0247
Mar 2026 25 -0.3797 -0.6142