Saginaw County, officially the County of Saginaw, is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 200,169. The county seat is Saginaw. The county was created by September 10, 1822, and was fully organized on February 9, 1835. The etymology of the county’s name is uncertain. It may be derived from Sace-nong or Sak-e-nong (English: Sauk land), as the Sauk (French: Sac) tribe is believed by some to have once lived there. A more likely possibility is that it comes from Ojibwe words meaning “place of the outlet” –sag (English: an opening) and ong (English: place of). See List of Michigan county name etymologies.
According to the U.S. Census Bureau, the county has a total area of 816 square miles (2,110 km), of which 800 square miles (2,100 km) is land and 16 square miles (41 km) (1.9%) is water. It is part of the Flint/Tri-Cities region of Mid-Michigan. The median elevation in Saginaw County, Michigan is 620 feet (190 m) above sea level.
The 2010 United States Census indicates Saginaw County had a 2010 population of 200,169. This is a decrease of -9,870 people from the 2000 United States Census. Overall, the county had a -4.7% growth rate during this ten-year period. In 2010 there were 79,011 households and 52,287 families in the county. The population density was 250.2 per square mile (96.6 square kilometers). There were 86,844 housing units at an average density of 108.5 per square mile (41.9 square kilometers). The racial and ethnic makeup of the county was 70.5% White, 18.6% Black or African American, 0.3% Native American, 1.0% Asian, 7.8% Hispanic or Latino, 0.1% from other races, and 1.6% from two or more races.
There were 79,011 households out of which 30.5% had children under the age of 18 living with them, 45.4% were husband and wife families, 16.0% had a female householder with no husband present, 33.8% were non-families, and 28.2% were made up of individuals. The average household size was 2.44 and the average family size was 2.99.
In the county, the population was spread out with 23.4% under age of 18, 10.6% from 18 to 24, 22.9% from 25 to 44, 27.8% from 45 to 64, and 15.3% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 93.6 males. For every 100 females age 18 and over, there were 90.4 males.
The 2010 American Community Survey 1-year estimate indicates the median income for a household in the county was $41,938 and the median income for a family was $52,243. Males had a median income of $27,691 versus $16,488 for females. The per capita income for the county was $21,025. About 12.4% of families and 16.9% of the population were below the poverty line, including 24.1% of those under the age 18 and 10.1% of those age 65 or over.
The Roman Catholic Diocese of Saginaw is the controlling regional body for the Catholic Church.