Harrison Township is one of 11 townships in Howard County, Indiana, United States. As of the 2020 census, its population was 9,848, upfrom 9,489 in 2010.

Historical population

Census	Pop.	Note	%±
2000	8,498		—
2010	9,489		11.7%
2020	9,848		3.8%
U.S. Census

According to the 2010 census, the township has a total area of 21.77 square miles (56.4 km), of which 21.68 square miles (56.2 km) (or 99.59%) is land and 0.09 square miles (0.23 km) (or 0.41%) is water. Harrison Township was also one of the only townships in Howard County to grow from 2000 to 2010.

• Kokomo (southwest edge)

• West Middleton

• Alto (annexed into Kokomo in 2012)
• Tarkington

• Clay Township (north)
• Center Township (northeast)
• Taylor Township (east)
• Liberty Township, Tipton County (southeast)
• Prairie Township, Tipton County (south)
• Honey Creek Township (west)
• Monroe Township (west)

The township contains two cemeteries: Sunset Memory Gardens and Twin Spring.

• SR 931
• SR 26

• Glenndale Airport
• Ruzicka Airport

• Chipendale Golf Course, located a mile south of SR 26 on Park Road.
• Rice's Golf Center, located on US 31 at Center Road.
• Wildcat Creek Golf Course, located in Timbervalley subdivision, entrances on Center Road and SR 26.

• Jackson-Morrow Park, entrances located on Park Road between Alto and Center roads as well as on Webster Street.

• Western High School
• Western Middle School
• Western Administration Building

• West Middleton Post Office, located at the corner of Alto Road and Rabbit Street.
• Kokomo Main Post Office, located at the corner of Webster Street and Lincoln Road.

• Harrison Township Volunteer Fire Department, 4102 S. Dixon Road

• "Harrison Township, Howard County, Indiana". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved September 24, 2009.
• United States Census Bureau cartographic boundary files

• Indiana Township Association
• United Township Association of Indiana