Table Data - Housing Inventory: Active Listing Count in King County, WA

Title Housing Inventory: Active Listing Count in King County, WA
Series ID ACTLISCOU53033
Source Realtor.com
Release Housing Inventory Core Metrics
Seasonal Adjustment Not Seasonally Adjusted
Frequency Monthly
Units Level
Date Range 2016-07-01 to 2026-08-01
Last Updated 2026-09-04 6:01 AM CDT
Notes The count of active single-family and condo/townhome listings for a given market during the specified month (excludes pending listings).

With the release of its September 2022 housing trends report, Realtor.com® incorporated a new and improved methodology for capturing and reporting housing inventory trends and metrics. The new methodology updates and improves the calculation of time on market and improves handling of duplicate listings. Most areas across the country will see minor changes with a smaller handful of areas seeing larger updates. As a result of these changes, the data released since October 2022 will not be directly comparable with previous data releases (files downloaded before October 2022) and Realtor.com® economics blog posts. However, future data releases, including historical data, will consistently apply the new methodology. More details are available at the source's Real Estate Data Library.

With the release of its November 2021 housing trends report, Realtor.com® incorporated a new and improved methodology for capturing and reporting housing inventory trends and metrics. The new methodology uses the latest and most accurate data mapping of listing statuses to yield a cleaner and more consistent measurement of active listings at both the national and local level. The methodology has also been adjusted to better account for missing data in some fields including square footage. Most areas across the country will see minor changes with a smaller handful of areas seeing larger updates. As a result of these changes, the data released since December 2021 will not be directly comparable with previous data releases (files downloaded before December 2021) and Realtor.com® economics blog posts. However, future data releases, including historical data, will consistently apply the new methodology. More details are available at the source's Real Estate Data Library.
DATE VALUE
2016-07-01 3233
2016-08-01 3349
2016-09-01 3327
2016-10-01 3052
2016-11-01 2362
2016-12-01 1788
2017-01-01 1513
2017-02-01 1372
2017-03-01 1484
2017-04-01 1658
2017-05-01 1941
2017-06-01 2380
2017-07-01 2631
2017-08-01 2735
2017-09-01 2849
2017-10-01 2741
2017-11-01 2211
2017-12-01 1517
2018-01-01 1266
2018-02-01 1368
2018-03-01 1641
2018-04-01 2029
2018-05-01 2507
2018-06-01 3170
2018-07-01 3911
2018-08-01 4424
2018-09-01 5139
2018-10-01 5323
2018-11-01 4684
2018-12-01 3744
2019-01-01 3006
2019-02-01 3023
2019-03-01 3339
2019-04-01 3630
2019-05-01 4284
2019-06-01 4699
2019-07-01 4584
2019-08-01 4783
2019-09-01 4796
2019-10-01 4760
2019-11-01 3770
2019-12-01 2508
2020-01-01 1987
2020-02-01 1993
2020-03-01 2337
2020-04-01 2631
2020-05-01 3153
2020-06-01 3312
2020-07-01 3424
2020-08-01 3640
2020-09-01 3824
2020-10-01 3759
2020-11-01 2843
2020-12-01 2148
2021-01-01 1652
2021-02-01 1529
2021-03-01 1720
2021-04-01 1794
2021-05-01 1864
2021-06-01 2108
2021-07-01 2187
2021-08-01 2129
2021-09-01 2093
2021-10-01 1877
2021-11-01 1368
2021-12-01 886
2022-01-01 746
2022-02-01 883
2022-03-01 1055
2022-04-01 1262
2022-05-01 2209
2022-06-01 3026
2022-07-01 3773
2022-08-01 3739
2022-09-01 3697
2022-10-01 3785
2022-11-01 3361
2022-12-01 2423
2023-01-01 1959
2023-02-01 1727
2023-03-01 1828
2023-04-01 1937
2023-05-01 2147
2023-06-01 2431
2023-07-01 2510
2023-08-01 2614
2023-09-01 2820
2023-10-01 2815
2023-11-01 2967
2023-12-01 2261
2024-01-01 1854
2024-02-01 1883
2024-03-01 2205
2024-04-01 2545
2024-05-01 3322
2024-06-01 3864
2024-07-01 4274
2024-08-01 4368
2024-09-01 4737
2024-10-01 4503
2024-11-01 3747
2024-12-01 2681
2025-01-01 2400
2025-02-01 2662
2025-03-01 3113
2025-04-01 4007
2025-05-01 5308
2025-06-01 5784
2025-07-01 5923
2025-08-01 5782
2025-09-01 5895
2025-10-01 5693
2025-11-01 4808
2025-12-01 3505
2026-01-01 3273
2026-02-01 3768
2026-03-01 4482
2026-04-01 5197
2026-05-01 6221
2026-06-01 6913
2026-07-01 7172
2026-08-01 7366

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