Winchester is a city in Jefferson County, Kansas, United States.

[5] A post office in Winchester was established in March 1858 and closed in 2021.

[10] Winchester is part of the Topeka, Kansas Metropolitan Statistical Area.

The racial makeup of the city was 98.4% White, 1.3% Native American, and 0.4% from two or more races.

34.1% of all households were made up of individuals, and 20.1% had someone living alone who was 65 years of age or older.

25.2% of all households were made up of individuals, and 13.8% had someone living alone who was 65 years of age or older.

The community is served by Jefferson County North USD 339 public school district.

Jefferson County North High School is located in Winchester.