The first woman mayor in the United States, Susanna Salter, was elected in Argonia, Kansas in 1887.
Jefferson County, Kansas, located in the northeastern part of the state, has a rich history that dates back centuries. The area was originally inhabited by indigenous tribes, including the Kansa and Osage, who utilized the land for hunting and fishing. European settlement began in the early 19th century, with the arrival of traders and fur trappers.

In 1854, the Kansas-Nebraska Act opened the region to settlement, and Jefferson County was officially established in 1855. The county was named after President Thomas Jefferson and became an important agricultural center due to its fertile soil. The construction of railroads in the late 19th century further facilitated the growth of the county, connecting it to major cities and markets.

Like many other parts of Kansas, Jefferson County experienced the turbulence of the Civil War era. It was a battleground for the conflict between pro-slavery and anti-slavery forces, with incidents such as the Marais des Cygnes massacre that occurred in the county. At the end of the war, Jefferson County entered a phase of recovery and growth, and by the late 19th century, it had become an important center for farming, livestock, and manufacturing.

The 20th century brought both challenges and opportunities to Jefferson County. The Great Depression impacted the local economy, but the county managed to recover, with the construction of highways and the expansion of agriculture and industry contributing to its growth. Today, Jefferson County continues to thrive as a rural community with a strong agricultural base, while also embracing modern developments in technology and transportation. It has preserved its historical landmarks and attracts visitors with its picturesque landscapes and recreational activities like fishing, camping, and hiking.

This timeline provides a glimpse into the major events and milestones that have shaped the history of Jefferson County, Kansas.

  • 1854 - Jefferson County is established as one of the original 33 counties of Kansas Territory.
  • 1855 - The first settlements are established in the county, including Oskaloosa and Winchester.
  • 1857 - Jefferson County's first newspaper, the Kansas Weekly Herald, is published.
  • 1861-1865 - The American Civil War takes place, with Jefferson County providing troops to the Union Army.
  • 1866 - The Kansas Pacific Railway is completed, connecting Jefferson County to the national rail network.
  • 1871 - The city of Meriden is founded.
  • 1881 - Perry becomes the county seat, replacing Oskaloosa.
  • 1893 - The Jefferson County Courthouse is built in Oskaloosa.
  • 1903 - The city of Valley Falls is incorporated.
  • 1952 - The Perry Lake Reservoir is completed, providing recreational opportunities for residents and visitors.
  • 1980 - The Perry State Park is established, further enhancing outdoor recreation options in the county.
  • 2000 - The population of Jefferson County reaches its peak at over 19,000 residents.
  • 2010 - The population of Jefferson County drops to around 19,000 residents.
  • 2021 - Jefferson County continues to thrive as a rural community, preserving its historical heritage while embracing modern developments.