Fort Riley is a United States Army

United States Army

The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

 installation located in Northeast Kansas

Kansas

Kansas is a US state located in the Midwestern United States. It is named after the Kansas River which flows through it, which in turn was named after the Kansa Native American tribe, which inhabited the area. The tribe's name is often said to mean "people of the wind" or "people of the south...

, on the Kansas River

Kansas River

The Kansas River is a river in northeastern Kansas in the United States. It is the southwestern-most part of the Missouri River drainage, which is in turn the northwestern-most portion of the extensive Mississippi River drainage. Its name come from the Kanza people who once inhabited the area...

, between Junction City

Junction City, Kansas

Junction City is a city in and the county seat of Geary County, Kansas, United States. As of the 2010 census, the city population was 23,353. Fort Riley, a major U.S. Army post, is nearby...

 and Manhattan

Manhattan, Kansas

Manhattan is a city located in the northeastern part of the state of Kansas in the United States, at the junction of the Kansas River and Big Blue River. It is the county seat of Riley County and the city extends into Pottawatomie County. As of the 2010 census, the city population was 52,281...

. The Fort Riley Military Reservation covers 100,656 acres (407 km²) in Geary

Geary County, Kansas

Geary County is a county located in Northeast Kansas, in the Central United States. As of the 2010 census, the county population was 34,362. Its county seat and most populous city is Junction City. The county is named in honor of Governor John W. Geary...

 and Riley

Riley County, Kansas

Riley County is a county located in the U.S. state of Kansas. The county's population was 71,115 for the 2010 census. The largest city and county seat is Manhattan. The county is part of the Manhattan, Kansas, Metropolitan Statistical Area.Riley County is home to two of Kansas' largest...

 counties and includes two census-designated place

Census-designated place

A census-designated place is a concentration of population identified by the United States Census Bureau for statistical purposes. CDPs are delineated for each decennial census as the statistical counterparts of incorporated places such as cities, towns and villages...

s: Fort Riley North

Fort Riley North, Kansas

Fort Riley North is a census-designated place that covers part of Fort Riley, a US Army installation in Geary and Riley counties in the U.S. state of Kansas. The area is more commonly known as "Custer Hill"...

 and Fort Riley-Camp Whitside. The fort has a daytime population of nearly 25,000. The zip code is 66442.

Fort Riley is named in honor of Major General

Major General

Major general or major-general is a military rank used in many countries. It is derived from the older rank of sergeant major general. A major general is a high-ranking officer, normally subordinate to the rank of lieutenant general and senior to the ranks of brigadier and brigadier general...

 Bennett C.