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Historical Markers in Irwin, Pennsylvania
Greensburg is the county seat for Westmoreland County
Irwin is in Westmoreland County
Westmoreland County (172) ►ADJACENT TO WESTMORELAND COUNTY Allegheny County (679) ► Armstrong County (23) ► Cambria County (98) ► Fayette County (289) ► Indiana County (36) ► Somerset County (158) ► Washington County (377) ►
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May. 7, 2024