Zip Code: 21757 (Keymar, 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 21757 Zip Code in February 2026 was 29 days. The month over month percentage change (MoM) was -0.3155%, and the year over year percentage change (YoY) was -0.6314%.

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 21757 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 21757 - Trend of House - Median Days on Market
Zip Code: 21757 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 44
Sep 2016 50
Oct 2016 50
Nov 2016 76
Dec 2016 99
Jan 2017 108
Feb 2017 99
Mar 2017 78
Apr 2017 69
May 2017 45
Jun 2017 46
Jul 2017 62
Aug 2017 61 -0.0161 0.3864
Sep 2017 84 0.3689 0.6869
Oct 2017 26 -0.6886 -0.48
Nov 2017 29 0.1058 -0.6217
Dec 2017 59 1.0348 -0.4091
Jan 2018 74 0.265 -0.3116
Feb 2018 102 0.3716 0.0253
Mar 2018 137 0.3498 0.7677
Apr 2018 164 0.1971 1.3682
May 2018 76 -0.5396 0.6966
Jun 2018 43 -0.4305 -0.0549
Jul 2018 68 0.5814 0.0968
Aug 2018 76 0.1103 0.2377
Sep 2018 123 0.6291 0.4731
Oct 2018 123 -0.0041 3.7115
Nov 2018 116 -0.051 3.0435
Dec 2018 81 -0.3054 0.3803
Jan 2019 82 0.0093 0.1014
Feb 2019 61 -0.2577 -0.4039
Mar 2019 36 -0.4132 -0.7409
Apr 2019 39 0.0986 -0.7622
May 2019 44 0.1154 -0.4238
Jun 2019 53 0.2184 0.2326
Jul 2019 39 -0.2642 -0.4265
Aug 2019 98 1.5 0.2914
Sep 2019 91 -0.0667 -0.2602
Oct 2019 64 -0.2967 -0.4776
Nov 2019 51 -0.2109 -0.5656
Dec 2019 75 0.4752 -0.0774
Jan 2020 103 0.3758 0.2577
Feb 2020 116 0.1317 0.9174
Mar 2020 135 0.1595 2.7887
Apr 2020 136 0.0074 2.4744
May 2020 164 0.2066 2.7586
Jun 2020 92 -0.4373 0.7358
Jul 2020 118 0.2826 2.0256
Aug 2020 112 -0.0508 0.1487
Sep 2020 88 -0.2143 -0.033
Oct 2020 43 -0.5142 -0.332
Nov 2020 54 0.2632 0.0693
Dec 2020 84 0.5463 0.1208
Jan 2021 97 0.1557 -0.0585
Feb 2021 97 0.0052 -0.1638
Mar 2021 153 0.5722 0.1338
Apr 2021 14 -0.9115 -0.9004
May 2021 42 2.0741 -0.7462
Jun 2021 51 0.2169 -0.4511
Jul 2021 39 -0.2277 -0.6695
Aug 2021 42 0.0641 -0.6295
Sep 2021 27 -0.3614 -0.6989
Oct 2021 47 0.7736 0.0994
Nov 2021 54 0.1489 0.0
Dec 2021 46 -0.1435 -0.4461
Jan 2022 77 0.6649 -0.2021
Feb 2022 71 -0.0779 -0.268
Mar 2022 3 -0.9648 -0.9836
Apr 2022 22 7.6 0.5926
May 2022 13 -0.4186 -0.6988
Jun 2022 27 1.18 -0.4604
Jul 2022 18 -0.3394 -0.5385
Aug 2022 14 -0.2222 -0.6627
Sep 2022 34 1.4286 0.283
Oct 2022 24 -0.2941 -0.4894
Nov 2022 36 0.5 -0.3333
Dec 2022 60 0.6528 0.2865
Jan 2023 67 0.1176 -0.1364
Feb 2023 118 0.7669 0.6549
Mar 2023 8 -0.9362 2.0
Apr 2023 10 0.3333 -0.5349
May 2023 27 1.7 1.16
Jun 2023 26 -0.037 -0.0459
Jul 2023 20 -0.25 0.0833
Aug 2023 44 1.2564 2.1429
Sep 2023 78 0.767 1.2868
Oct 2023 99 0.2733 3.125
Nov 2023 12 -0.8813 -0.6736
Dec 2023 36 2.0638 -0.395
Jan 2024 66 0.8333 -0.0075
Feb 2024 94 0.4242 -0.2
Mar 2024 119 0.2606 14.8
Apr 2024 107 -0.097 9.7
May 2024 190 0.7757 6.037
Jun 2024 213 0.1211 7.1923
Jul 2024 142 -0.3357 6.2564
Aug 2024 52 -0.6325 0.1818
Sep 2024 20 -0.6154 -0.7428
Oct 2024 44 1.175 -0.5606
Nov 2024 77 0.7586 5.5106
Dec 2024 66 -0.1373 0.8333
Jan 2025 127 0.9167 0.9167
Feb 2025 29 -0.7747 -0.6968
Mar 2025 78 1.7368 -0.3418
Apr 2025 72 -0.0769 -0.3271
May 2025 53 -0.2604 -0.7197
Jun 2025 99 0.8498 -0.5376
Jul 2025 30 -0.698 -0.7898
Aug 2025 48 0.6218 -0.0721
Sep 2025 36 -0.2539 0.8
Oct 2025 123 2.4097 1.8218
Nov 2025 23 -0.8126 -0.6993
Dec 2025 58 1.5217 -0.1212
Jan 2026 106 0.8233 -0.164
Feb 2026 42 -0.6028 0.4737
Mar 2026 29 -0.3155 -0.6314