Atchison Township is a township in Nodaway County, Missouri, United States. At the 2020 census, its population was 386. The town of Clearmont lies in its southwest.
History Atchison Township was established in April 1845, and named after David Rice Atchison, a United States Senator from Missouri.
Geography Sink Creek sources from the center of this township and flows westerly, passes north of Clearmont, and deposits in the Nodaway River.
Settlements Alonzo City was a settlement platted in 1857 by Alonzo Thompson in the northern portion of this township that existed in the 1860s, northeast of Clearmont near the Iowa border.
Transportation The following highways travel through the township:
U.S. Route 71 Route AD Route B Route C Route FF Route JJ
References