Sanilac County
Also known as Sanilac County, Michigan, Sanilac County, MI
county in Michigan, United States
Key facts
- Country
- United States
- State
- Michigan
- Founded
- September 10, 1822 (created), December 31, 1849 (organized)
- Seat
- Sandusky
- Largest city
- Sandusky
- Total
- 1,590 sq mi (4,100 km )
- Land
- 963 sq mi (2,490 km )
- Water
- 627 sq mi (1,620 km ) 39%
- Estimate 2025
- 40,038
- Density
- 41.8/sq mi (16.1/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
~12 min read
Article
Sanilac County (/sænəlæk/ SAN-ə-lack) is a county located in the Thumb region of the U.S. state of Michigan. As of the 2020 Census, the population was 40,611. The county seat is Sandusky. The county was created on September 10, 1822, and was fully organized on December 31, 1849. Sanilac County is considered to be part of the Thumb of Michigan, a subregion of the Flint/Tri-Cities. Sanilac County enjoys seasonal tourism in towns such as Lexington, Port Sanilac, and Carsonville. Sanilac County is economically attached to St. Clair County and Huron County and is largely composed of nearly flat areas of rich soil.
History