Wamego ( /wɔːmiːɡoʊ/) is a city in Pottawatomie County, Kansas, United States. The population was 4,246 at the 2000 census. It is part of the Manhattan, Kansas Metropolitan Statistical Area.
Wamego is located at 39°12′15″N 96°18′30″W / 39.20417°N 96.30833°W / 39.20417; -96.30833 (39.204074, -96.308328). According to the United States Census Bureau, the city has a total area of 1.7 square miles (4.3 km²), of which, 1.6 square miles (4.2 km²) of it is land and 0.04 square miles (0.1 km²) of it (2.40%) is water.
Wamego is located at the intersection of U.S. Route 24 and K-99. It is about 26 km (17 mi) east of Manhattan, home of Kansas State University; and about 75 km (35 mi) west-northwest of Topeka, the state capital. The Kansas River flows along the southern edge of the city.