Southern Illinois 24 counties
By Daniel L. Bishop · Business Master Mechanic
Web summary: October 25, 2026. Underlying research periods vary; county research edition: October 23, 2026.
The broader Southern Illinois study contains all 17 SI Now counties plus Edwards, Marion, Monroe, St. Clair, Wabash, Washington and Wayne.
The seven additional counties remain research in progress. Their earlier regional material has not been presented as equally current with the reviewed SI Now county reports.
Detailed explanation and source context follow below.
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