Title:               Housing Inventory: New Listing Count in Allegheny County, PA
Series ID:           NEWLISCOU42003
Source:              Realtor.com
Release:             Housing Inventory Core Metrics
Seasonal Adjustment: Not Seasonally Adjusted
Frequency:           Monthly
Units:               Level
Date Range:          2016-07-01 to 2023-03-01
Last Updated:        2023-03-30 4:32 PM CDT
Notes:               The count of new listings added to the market in a given geography
                     during the month.
                     
                     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   1688
2016-08-01   1540
2016-09-01   1422
2016-10-01   1316
2016-11-01   1084
2016-12-01    740
2017-01-01   1028
2017-02-01   1314
2017-03-01   1598
2017-04-01   1860
2017-05-01   1770
2017-06-01   1730
2017-07-01   1612
2017-08-01   1596
2017-09-01   1460
2017-10-01   1362
2017-11-01   1016
2017-12-01    708
2018-01-01   1076
2018-02-01   1186
2018-03-01   1572
2018-04-01   1890
2018-05-01   1842
2018-06-01   1836
2018-07-01   1650
2018-08-01   1540
2018-09-01   1380
2018-10-01   1404
2018-11-01   1126
2018-12-01    880
2019-01-01   1134
2019-02-01   1110
2019-03-01   1436
2019-04-01   1798
2019-05-01   1868
2019-06-01   1844
2019-07-01   1534
2019-08-01   1440
2019-09-01   1468
2019-10-01   1440
2019-11-01   1040
2019-12-01    818
2020-01-01   1052
2020-02-01   1284
2020-03-01   1452
2020-04-01    500
2020-05-01   1804
2020-06-01   1872
2020-07-01   1860
2020-08-01   1736
2020-09-01   1606
2020-10-01   1572
2020-11-01   1148
2020-12-01    774
2021-01-01   1000
2021-02-01   1068
2021-03-01   1534
2021-04-01   1840
2021-05-01   1836
2021-06-01   1942
2021-07-01   1860
2021-08-01   1734
2021-09-01   1592
2021-10-01   1496
2021-11-01   1210
2021-12-01    772
2022-01-01    912
2022-02-01   1100
2022-03-01   1442
2022-04-01   1708
2022-05-01   1834
2022-06-01   1736
2022-07-01   1580
2022-08-01   1450
2022-09-01   1346
2022-10-01   1304
2022-11-01   1026
2022-12-01    660
2023-01-01    864
2023-02-01    916
2023-03-01   1304