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Housing Inventory: Total Listing Count in Mchenry County, IL (TOTLISCOU17111)

Observations

Sep 2026: 1,076
Updated: Oct 1, 2026 7:31 PM CDT
Sep 2026:  1,076  
Aug 2026:  1,060  
Jul 2026:  1,086  
Jun 2026:  1,087  
May 2026:  1,041  

Units:

Level,
Not Seasonally Adjusted

Frequency:

Monthly

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Notes

Title Release Dates
Housing Inventory: Total Listing Count in Mchenry County, IL 2020-03-05 2026-10-01
 
Source    
Realtor.com 2020-03-05 2026-10-01
 
Release    
Housing Inventory Core Metrics 2020-03-05 2026-10-01
 
Units    
Level 2020-03-05 2026-10-01
 
Frequency    
Monthly 2020-03-05 2026-10-01
 
Seasonal Adjustment    
Not Seasonally Adjusted 2020-03-05 2026-10-01
 
Notes    
The total of both active listings and pending listings in a given market during the specified month.

2020-03-05 2021-12-01
The total of both active listings and pending listings in a given market during the specified month.

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/).

2021-12-02 2022-09-28
The total of both active listings and pending listings in a given market during the specified 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/).

2022-09-29 2026-10-01

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McHenry County, IL Chicago Illinois Listing Realtor.com County or County Equivalent Copyrighted: Citation Required Monthly United States of America Not Seasonally Adjusted