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Historical Markers in Lannon
Waukesha is the county seat for Waukesha County
Lannon is in Waukesha County
ADJACENT TO WAUKESHA COUNTY
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| Near Lannon Road 0.5 miles north of Main Street (Hwy 74). |
| On West Main Street (State Highway 74) at Lannon Road (County Route Y), on the right when traveling east on West Main Street. |
| On State Highway 74 0.2 miles south of County Route V, on the right when traveling north. |
Nov. 10, 2026