Title:               Housing Inventory: Active Listing Count in Allegheny County, PA
Series ID:           ACTLISCOU42003
Source:              Realtor.com
Release:             Housing Inventory Core Metrics
Seasonal Adjustment: Not Seasonally Adjusted
Frequency:           Monthly
Units:               Level
Date Range:          2016-07-01 to 2023-02-01
Last Updated:        2023-03-02 5:01 PM CST
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
                     (https://www.realtor.com/research/data/).
                     
                     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
                     (https://www.realtor.com/research/data/).

DATE        VALUE
2016-07-01   5079
2016-08-01   5150
2016-09-01   5116
2016-10-01   5097
2016-11-01   4885
2016-12-01   4520
2017-01-01   4223
2017-02-01   4034
2017-03-01   3935
2017-04-01   3983
2017-05-01   4112
2017-06-01   4319
2017-07-01   4462
2017-08-01   4581
2017-09-01   4650
2017-10-01   4603
2017-11-01   4315
2017-12-01   3904
2018-01-01   3589
2018-02-01   3346
2018-03-01   3272
2018-04-01   3298
2018-05-01   3389
2018-06-01   3559
2018-07-01   3735
2018-08-01   3846
2018-09-01   3908
2018-10-01   3988
2018-11-01   3860
2018-12-01   3562
2019-01-01   3344
2019-02-01   3112
2019-03-01   3052
2019-04-01   3067
2019-05-01   3158
2019-06-01   3398
2019-07-01   3540
2019-08-01   3600
2019-09-01   3711
2019-10-01   3795
2019-11-01   3587
2019-12-01   3304
2020-01-01   3058
2020-02-01   2788
2020-03-01   2670
2020-04-01   2580
2020-05-01   2724
2020-06-01   2630
2020-07-01   2536
2020-08-01   2555
2020-09-01   2581
2020-10-01   2561
2020-11-01   2354
2020-12-01   2085
2021-01-01   1835
2021-02-01   1501
2021-03-01   1464
2021-04-01   1552
2021-05-01   1704
2021-06-01   1953
2021-07-01   2275
2021-08-01   2389
2021-09-01   2430
2021-10-01   2388
2021-11-01   2229
2021-12-01   1901
2022-01-01   1594
2022-02-01   1380
2022-03-01   1349
2022-04-01   1440
2022-05-01   1732
2022-06-01   1985
2022-07-01   2278
2022-08-01   2440
2022-09-01   2482
2022-10-01   2631
2022-11-01   2596
2022-12-01   2395
2023-01-01   2114
2023-02-01   1852