Cities, Towns, and Villages in Warren County, Illinois

Here is a list of all the cities, towns, and villages in Warren County, Illinois

Warren County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 16,835. Its county seat is Monmouth.

Here is a list of all the cities, towns, and villages in Warren County, Illinois:


  • Monmouth


Warren County is divided into these townships:

  • Berwick
  • Cold Brook
  • Ellison
  • Floyd
  • Greenbush
  • Hale
  • Kelly
  • Lenox
  • Monmouth
  • Point Pleasant
  • Roseville
  • Spring Grove
  • Sumner
  • Swan
  • Tompkins

Unincorporated communities

  • Berwick
  • Cameron
  • Coldbrook
  • Eleanor
  • Gerlaw
  • Greenbush
  • Larchland
  • Ormonde
  • Ponemah
  • Shanghai City
  • Smithshire
  • Swan Creek
  • Utah
  • Youngstown


  • Alexis
  • Kirkwood
  • Little York
  • Roseville

Quick Facts about Warren County, Illinois

Here are some quick facts about Warren county, Illinois:

  • Location: Warren County is located in western Illinois.
  • County Seat: The county seat of Warren County is Monmouth.
  • Population: 16,531
  • Economy: Warren County has an economy traditionally influenced by agriculture, manufacturing, and commerce.
  • Historical Sites: The county may have historical sites and landmarks that reflect its cultural heritage.
  • Lincoln Trail: The historic route known as the Lincoln Trail passes through Warren County.
  • Outdoor Recreation: The region may offer opportunities for outdoor activities, including parks and natural areas.
  • Education: Monmouth, the largest city in Warren County, is home to Monmouth College, contributing to educational resources in the area.
  • Government: Warren County operates under a county board form of government.
  • Official Website:

Is Monmouth a town or city?