Piqua is an unincorporated community in Woodson County, Kansas, United States. Its population was 107 as of the 2010 census.
Piqua had its start in the year 1882 by the building of the railroads through the territory, and is situated at the junction of the Missouri Pacific Railroad and the Missouri-Kansas-Texas Railroad. It was named after the city of Piqua, Ohio. The first post office in Piqua was established in March 1882.
Latitude of Piqua is 37.922N and longitude is -95.535W. Piqua is located on U.S. Route 54 and is east of U.S. Route 75. Piqua is located between the cities of Yates Center and Iola.
For statistical purposes, the United States Census Bureau has defined Piqua as a census-designated place (CDP).
The community is served by Woodson USD 366 public school district.