Ontonagon Township (/ˌɒntəˈnɑːɡən/ ON-tə-NAH-gən) is a civil township of Ontonagon County in the U.S. state of Michigan. The population was 2,253 at the 2020 census.^[3]

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Ontonagon Township, Michigan
Civil township
Ontonagon Light
Location within Ontonagon County (red) and the administered village of Ontonagon (pink)
Ontonagon Township Location within the state of Michigan Show map of Michigan Ontonagon Township Ontonagon Township (the United States) Show map of the United States
Coordinates: 46°51′22″N 89°17′31″W
Country	United States
State	Michigan
County	Ontonagon
Government
• Supervisor	Steven Store
• Clerk	William Chabot
Area
• Total	193.58 sq mi (501.4 km2)
• Land	192.88 sq mi (499.6 km2)
• Water	0.70 sq mi (1.8 km2)
Elevation	810 ft (247 m)
Population  (2020)
• Total	2,253
• Density	13.4/sq mi (5.2/km2)
Time zone	UTC-5 (Eastern (EST))
• Summer (DST)	UTC-4 (EDT)
ZIP code(s)	49953 (Ontonagon)
Area code	906
FIPS code	26-60880[1]
GNIS feature ID	1626851[2]

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According to the United States Census Bureau, the township has a total area of 193.58 square miles (501.37 km²), of which 192.88 square miles (499.56 km²) is land and 0.70 square miles (1.81 km²) (0.36%) is water.