Jackson Township is a township in Monroe County, Arkansas, United States. Its total population was 120 as of the 2020 United States census.
Its total population was 121 in 2010, a decrease of 45.50 percent from 222 in 2000.
According to the 2010 Census, Jackson Township is located at (34.522922, -91.182666). It has a total area of ; of which is land and is water (2.78%). As per the USGS National Elevation Dataset, the elevation is .