Riley County, Kansas

Riley County
Riley County Courthouse in Manhattan (2005)
Riley County Courthouse in Manhattan (2005)
Flag of Riley County
Map of Kansas highlighting Riley County
Location within the U.S. state of Kansas
Map of the United States highlighting Kansas
Kansas's location within the U.S.
Coordinates: 39°06′47″N 96°37′41″W / 39.1131°N 96.6281°W / 39.1131; -96.6281
Country United States
State Kansas
FoundedAugust 25, 1855
Named forBennet C. Riley
SeatManhattan
Largest cityManhattan
Area
 • Total
622 sq mi (1,610 km2)
 • Land610 sq mi (1,600 km2)
 • Water12 sq mi (30 km2)  2.0%
Population
 • Total
71,959
 • Estimate 
(2023)[2]
71,402 Decrease
 • Density118.0/sq mi (45.6/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district1st
Websiterileycountyks.gov

Riley County is a county located in the U.S. state of Kansas. Its county seat and largest city is Manhattan.[3] As of the 2020 census, the population was 71,959.[1] The county was named after Bennet Riley, the 7th governor of California, and a Mexican–American War hero. Riley County is home to Fort Riley and Kansas State University.

  1. ^ a b "QuickFacts; Riley County, Kansas; Population, Census, 2020 & 2010". United States Census Bureau. Archived from the original on August 19, 2021. Retrieved August 19, 2021.
  2. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved March 24, 2024.
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.