Osco Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 459 and it contained 193 housing units. Osco changed its name from Essex Township on April 13, 1857.

Geography

According to the 2010 census, the township has a total area of 36.5 square miles (95 km), all land.

Unincorporated towns

• Morristown at 41°23′47″N 90°17′55″W / 41.396424°N 90.298735°W / 41.396424; -90.298735
• Osco at 41°20′52″N 90°16′49″W / 41.347813°N 90.280401°W / 41.347813; -90.280401

(This list is based on USGS data and may include former settlements.)

Adjacent townships

• Edford Township (north)
• Geneseo Township (northeast)
• Munson Township (east)
• Cambridge Township (southeast)
• Andover Township (south)
• Lynn Township (southwest)
• Western Township (west)
• Colona Township (northwest)

Cemeteries

The township contains these two cemeteries: Grace Episcopal and Morristown.

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	449
U.S. Decennial Census

School districts

• Cambridge Community Unit School District 227
• Geneseo Community Unit School District 228
• Orion Community Unit School District 223

Political districts

• Illinois's 14th congressional district
• State House District 71
• State Senate District 36