St. Clair County is a local government agency serving one of Michigan's 83 Counties. Located at the southern extent of Lake Huron, we include the easternmost area of Michigan and our County Seat (Port Huron) is actually North of Canada. Due to our grographic location, St. Clair County has had a long history of enterprise and development. Located at the northern connection between Interstates 94 & 69, we remain an important transportation link to trade in North America.
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St. Clair County Questions
The St. Clair County annual revenue was $18.7 million in 2026.
Donna Wood is the CFO of St. Clair County.
239 people are employed at St. Clair County.
St. Clair County is based in Port Huron, Michigan.
The NAICS codes for St. Clair County are [61, 6111, 61111, 611].
The SIC codes for St. Clair County are [8211, 821, 82].
Top St. Clair County Employees
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Donna Wood
CFO at St. Clair County
Gadsden, AL, US12 -
Brian Briese
Director of Information technology at St. Clair County
Port Huron, MI, US15+ -
Dena Alderdyce
Finance Director at St. Clair County
Port Huron, MI, US25+ -
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Mike Wendling
Prosecuting Attorney at St. Clair County
Goodells, MI, US24 -
Sean Barry
Assistant Prosecuting Attorney at St. Clair County
Detroit, MI, US11 -
Kyle Adams
Lieutenant at St. Clair County
Saint Clair, MI, US35+ -
Barbara Barnes
Office Manager at St. Clair County
Smiths Creek, MI, US25 -
Lori Eschenburg
Planner II and GIS at St. Clair County
Port Huron, MI, US15 -
Annette Mercatante
Health Officer and Medical Director at St. Clair County
Port Huron, MI, US24
