About This Place
Knoxville is a city in Johnson County, Arkansas, United States. The population was 511 at the 2000 census.
Knoxville is located at 35°22′59″N 93°21′57″W / 35.38306°N 93.36583°W / 35.38306; -93.36583 (35.382929, -93.365747).
According to the United States Census Bureau, the city has a total area of 2.2 square miles (5.7 km²), all of it land.