Zip Code: 20171 (Herndon, VA) - 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 20171 Zip Code in February 2026 was 39. The month over month percentage change (MoM) was 0.0263%, and the year over year percentage change (YoY) was 0.4182%.

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

The chart below shows the trend of active listing count in the 20171 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 20171 - Trend of Active Listing Count of Houses
Zip Code: 20171 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 110
Sep 2016 102
Oct 2016 103
Nov 2016 104
Dec 2016 91
Jan 2017 57
Feb 2017 45
Mar 2017 63
Apr 2017 81
May 2017 92
Jun 2017 99
Jul 2017 91
Aug 2017 92 0.0166 -0.1636
Sep 2017 98 0.0652 -0.0345
Oct 2017 97 -0.0102 -0.0537
Nov 2017 87 -0.1082 -0.1683
Dec 2017 65 -0.2543 -0.2873
Jan 2018 47 -0.2713 -0.1754
Feb 2018 43 -0.0851 -0.0337
Mar 2018 36 -0.1628 -0.4286
Apr 2018 55 0.5278 -0.321
May 2018 67 0.2182 -0.2717
Jun 2018 64 -0.0522 -0.3553
Jul 2018 75 0.1811 -0.1713
Aug 2018 95 0.26 0.0272
Sep 2018 97 0.0212 -0.0153
Oct 2018 94 -0.0259 -0.0309
Nov 2018 82 -0.1277 -0.052
Dec 2018 73 -0.1098 0.1318
Jan 2019 58 -0.2055 0.234
Feb 2019 55 -0.0603 0.2674
Mar 2019 54 -0.0092 0.5
Apr 2019 65 0.2037 0.1818
May 2019 80 0.2308 0.194
Jun 2019 94 0.175 0.4803
Jul 2019 88 -0.0638 0.1733
Aug 2019 90 0.017 -0.0529
Sep 2019 88 -0.0168 -0.0881
Oct 2019 78 -0.1136 -0.1702
Nov 2019 72 -0.0769 -0.122
Dec 2019 65 -0.0972 -0.1096
Jan 2020 59 -0.0923 0.0172
Feb 2020 41 -0.3051 -0.2477
Mar 2020 44 0.0732 -0.1852
Apr 2020 51 0.1591 -0.2154
May 2020 60 0.1765 -0.25
Jun 2020 53 -0.1167 -0.4362
Jul 2020 46 -0.1415 -0.483
Aug 2020 41 -0.0989 -0.5419
Sep 2020 53 0.2927 -0.3977
Oct 2020 58 0.0943 -0.2564
Nov 2020 60 0.0345 -0.1667
Dec 2020 65 0.0833 0.0
Jan 2021 44 -0.3231 -0.2542
Feb 2021 33 -0.25 -0.1951
Mar 2021 43 0.303 -0.0227
Apr 2021 44 0.0116 -0.1471
May 2021 51 0.1609 -0.1583
Jun 2021 56 0.1089 0.0566
Jul 2021 63 0.125 0.3846
Aug 2021 70 0.1111 0.7073
Sep 2021 90 0.2857 0.6981
Oct 2021 95 0.05 0.6293
Nov 2021 75 -0.2063 0.25
Dec 2021 54 -0.2867 -0.1769
Jan 2022 31 -0.4206 -0.2955
Feb 2022 23 -0.2581 -0.303
Mar 2022 28 0.1957 -0.3605
Apr 2022 37 0.3455 -0.1494
May 2022 55 0.4865 0.0891
Jun 2022 56 0.0091 -0.0089
Jul 2022 72 0.2883 0.1349
Aug 2022 80 0.1189 0.1429
Sep 2022 66 -0.1813 -0.2722
Oct 2022 58 -0.1145 -0.3862
Nov 2022 56 -0.0345 -0.2533
Dec 2022 45 -0.2054 -0.1682
Jan 2023 33 -0.2584 0.0645
Feb 2023 22 -0.3333 -0.0435
Mar 2023 23 0.0455 -0.1636
Apr 2023 25 0.0652 -0.3378
May 2023 30 0.2245 -0.4545
Jun 2023 24 -0.2167 -0.5766
Jul 2023 26 0.1064 -0.6364
Aug 2023 34 0.3077 -0.575
Sep 2023 29 -0.1618 -0.5649
Oct 2023 22 -0.2281 -0.6207
Nov 2023 19 -0.1591 -0.6696
Dec 2023 19 0.027 -0.573
Jan 2024 16 -0.1579 -0.5152
Feb 2024 10 -0.375 -0.5455
Mar 2024 17 0.65 -0.2826
Apr 2024 24 0.4545 -0.0204
May 2024 26 0.0833 -0.1333
Jun 2024 29 0.1154 0.234
Jul 2024 29 0.0 0.1154
Aug 2024 38 0.2931 0.1029
Sep 2024 43 0.1467 0.5088
Oct 2024 33 -0.2442 0.4773
Nov 2024 38 0.1692 1.0541
Dec 2024 31 -0.1842 0.6316
Jan 2025 21 -0.3226 0.3125
Feb 2025 24 0.119 1.35
Mar 2025 28 0.1702 0.6667
Apr 2025 49 0.7818 1.0417
May 2025 55 0.1224 1.1154
Jun 2025 59 0.0727 1.0345
Jul 2025 68 0.1441 1.3276
Aug 2025 64 -0.0593 0.6933
Sep 2025 67 0.0551 0.5581
Oct 2025 70 0.0373 1.1385
Nov 2025 66 -0.0576 0.7237
Dec 2025 60 -0.084 0.9355
Jan 2026 50 -0.1667 1.381
Feb 2026 38 -0.24 0.617
Mar 2026 39 0.0263 0.4182