Ottawa County, Oklahoma

Ottawa County
Ottawa County
County
	Modoc Mission Church (2010)
	Location within the U.S. state of Oklahoma
	Oklahoma's location within the U.S.
	Coordinates: 36°50′N 94°49′W / 36.84°N 94.81°W
Country	United States
State	Oklahoma
Founded	1907
Named for	Ottawa Tribe of Oklahoma
Seat	Miami
Largest city	Miami
Area
• Total	485 sq mi (1,260 km2)
• Land	471 sq mi (1,220 km2)
• Water	14 sq mi (40 km2) 2.8%
Population (2020)
• Total	30,285
• Density	62/sq mi (24/km2)
Congressional district	2nd
Website	ottawa.okcounties.org

Ottawa County is a county located in the northeastern corner of the U.S. state of Oklahoma. As of the 2020 census, the population was 30,285.^[1] Its county seat is Miami.^[2] The county was named for the Ottawa Tribe of Oklahoma.^[3] It is also the location of the federally recognized Modoc Nation and the Quapaw Nation, which is based in Quapaw.

Ottawa County comprises the Miami, OK Micropolitan Statistical Area, which is included in the Joplin-Miami, MO-OK Combined Statistical Area. The county borders both Kansas and Missouri.

The county was an important lead and zinc mining region during the early 1900s, and in 1983 the Tar Creek Superfund site was inaugurated to clean up tailings and prevent groundwater and waterway contamination with leachates.

^ "Explore Census Data". data.census.gov. Retrieved December 6, 2021.
^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
^ "Ottawa County | The Encyclopedia of Oklahoma History and Culture". Oklahoma Historical Society | OHS. Retrieved January 30, 2023.

[1] "Explore Census Data". data.census.gov. Retrieved December 6, 2021.

[GR6-2] "Find a County". National Association of Counties. Retrieved June 7, 2011.

[EOHC-Ottawa-3] "Ottawa County | The Encyclopedia of Oklahoma History and Culture". Oklahoma Historical Society | OHS. Retrieved January 30, 2023.

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