Beach chairs on Lake Michigan near Grand Haven
Ottawa County is a county in the U.S. state of Michigan. As of the 2010 census, the population was 263,801. The county seat is Grand Haven.
As of July 1, 2011, Ottawa County had a population of 264,910. The county has a total area of 1,631.97 square miles, of which 565.65 square miles (or 34.66%) is land and 1,066.32 square miles (or 65.34%) is water.
Summer seasonal residents are also a member of the populous Ottawa County. Port Sheldon Township has many lakefront homes and other inland retreats that serve as summer getaways for residents of Grand Rapids, Detroit, and Chicago. No official statistics are compiled on seasonal residents.
Ottawa County is a stronghold of the Republican Party. The last Democratic Party candidate to carry the county was George B. McClellan in 1864.
In the 2008 presidential election, Republican John McCain received 83,330 votes in the county (61.03% of the total) to Democrat Barack Obama's 50,828 (37.23%), even as Obama carried the state of Michigan by a double-digit margin.