K-18 is a primarily east–west state highway

Highway

A highway is any public road. In American English, the term is common and almost always designates major roads. In British English, the term designates any road open to the public. Any interconnected set of highways can be variously referred to as a "highway system", a "highway network", or a...

 running between US-24 and I-70 in north central 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...

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Route description

K-18 begins near the town of Bogue in Graham County

Graham County, Kansas

Graham County is a county located in northwest Kansas, in the Central United States. As of the 2010 census, the county population was 2,597. Its county seat and most populous city is Hill City...

 as it branches off to the south from US-24. The highway then stairsteps to the southeast through the towns of Damar, Palco, Plainville, and Codell in Rooks County; Natoma in Osborne County; Paradise, Waldo, Luray, and Lucas in Russell County (K-18 is duplexed with US-281 for 9 miles (14.5 km) west of Luray); and Sylvan Grove, Lincoln, and Beverly in Lincoln County. As K-18 enters Ottawa County

Ottawa County, Kansas

Ottawa County is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 6,091. The largest city and county seat is Minneapolis...

, it takes a due east bearing, traveling through Tescott and meeting US-81 north of Salina. The road briefly jogs to the north for around 2 miles (3.2 km) before turning east again to travel through Bennington and Talmage in Dickinson County and into Junction City in Geary County. In Junction City, K-18 meets US-77 and travels south along US-77 through the city until it hits I-70. K-18 then travels to the northeast along I-70 for eight miles (13 km) before exiting and continuing to the northeast toward 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...

. K-18 crosses the Kansas River at the Riley County line and travels through Ogden into 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...

. Once traveling through 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...

, K-18 again crosses the Kansas River and parallels the river to the south into Wabaunsee County before ending at K-99 south of Wamego.

Junction list