Sanilac County, Michigan
Sanilac County: county in Michigan, United States
About
Sanilac County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 43,114 and a population density of 10 people per km². After 10 years in 2020 county had an estimated population of 40,747 inhabitants. Its county seat is Sandusky. The county was created 204 years ago in 1821.
County Snapshot
Sanilac County at a glance
Sanilac County currently has 18 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
18
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Michigan counties
83
Open related pagesLargest city
SanduskyPopulation 2,494
Top linked places
Quick Facts about Sanilac County
| Population | 40,747 (2020) |
| Country | United States of America |
| State | Michigan (United States) |
| Area | 4119 km2 |
| Water as percent of area | 39% |
| Land as percent of area | 61% |
| Latitude & Longitude | 43.4433,-82.6458 |
| Altitude | 771 feet / 235 meters |
| Capital | Sandusky |
| Establishment | January 01, 1822 |
| Time Zone | America/Detroit |
| Local time | 21:39:03 (18th April 2026) |
| Density | 10 Pop. per km² as of 2020 |
| Population growth | -5.81% (2010-2020) |
Geography
Sanilac County is located at 43°26'36"N 82°38'45"W (43.4433100, -82.6457500). It has 2 neighbors: Huron County and Lapeer County.
Sanilac County map
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The largest city of Sanilac County is Sandusky with a population of 2,494. Other cities include, Croswell population 2,253, Marlette population 1,638, Brown City population 1,243 and Lexington population 1,118. See all Sanilac County cities & populated places.
Sanilac County Populated Places (more)
Cities, towns, neighborhoods & other populated places in Sanilac County.
| City Name | Population | Title |
|---|---|---|
| Sandusky | 2,494 | City in Michigan |
| Croswell | 2,253 | City in Sanilac County, Michigan, United States of America |
| Watertown | 2,060 | Township in Sanilac County, Michigan, United States |
| Charleston | 2,048 | Township in Sanilac County, Michigan, United States |
| Marlette | 1,638 | City in Sanilac County, Michigan, United States of America |
| Speaker | 1,385 | Township in Sanilac County, Michigan |
| Brown City | 1,243 | City in Sanilac and Lapeer counties in Michgan, United States |
| Lexington | 1,118 | Village in Sanilac County, Michigan, United States |
| Forester | 949 | Township in Michigan, United States |
| Deckerville | 775 | Human settlement in Sanilac County, Michigan, United States of America |
| Elmer | 748 | Township in Sanilac County, Michigan |
| Argyle | 708 | Township in Sanilac County, Michigan, United States |
| Peck | 588 | City in Michigan |
| Port Sanilac | 574 | Human settlement in Sanilac County, Michigan, United States of America |
| Carsonville | 488 | Human settlement in Sanilac County, Michigan, United States of America |
| Applegate | 227 | Human settlement in Sanilac County, Michigan, United States of America |
Official website of Sanilac County
Official Website- Sandusky
Demographics
According to census records, the population of Sanilac County decreased by 5.81% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 43,114 | - | census |
| 2011 | 42,705 | -0.96% | estimation process |
| 2012 | 42,306 | -0.94% | estimation process |
| 2013 | 41,901 | -0.97% | estimation process |
| 2014 | 41,661 | -0.58% | estimation process |
| 2015 | 41,464 | -0.48% | estimation process |
| 2016 | 41,405 | -0.14% | estimation process |
| 2017 | 41,242 | -0.4% | estimation process |
| 2018 | 41,192 | -0.12% | estimation process |
| 2019 | 41,170 | -0.05% | estimation process |
| 2020 | 40,747 | -1.04% | estimation process |
People born in Sanilac County (2)
People born in Sanilac County, including politician E. L. Farnsworth, Frank E. Gorman, .
More notable people
Michigan Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Wayne County | 1,740,623 | County in Michigan, United States |
| Oakland County | 1,253,459 | County in Michigan, United States |
| Macomb County | 870,791 | County in Michigan, United States |
| Detroit | 665,369 | The twenty-fourth most populous city in the United States and the center of the Detroit metropolitan area. |
| Kent County | 658,708 | County in Michigan, United States |
| Genesee County | 404,794 | County in Michigan, United States |
| Washtenaw County | 366,473 | County in Michigan, United States |
| Ottawa County | 294,635 | County in Michigan, United States |
| Ingham County | 290,609 | County in Michigan, United States |
| Kalamazoo County | 265,988 | County in Michigan, United States |
| Grand Rapids | 200,031 | The second most populous city in Michigan. |
| Livingston County | 192,335 | County in Michigan, United States |
| Saginaw County | 189,868 | County in Michigan, United States |
| Muskegon County | 173,883 | County in Michigan, United States |
| Saint Clair County | 159,293 | County in Alabama, United States |
| Jackson County | 156,920 | County in Michigan, United States |