Pleasant Plain is a city located in Jefferson County, Iowa. Pleasant Plain has a 2026 population of 83. Pleasant Plain is currently growing at a rate of 1.22% annually and its population has decreased by 0% since the most recent census, which recorded a population of 83 in 2020.
The median household income in Pleasant Plain is $86,458 with a poverty rate of 6.52%. The median age in Pleasant Plain is 49.6 years: 49.7 years for males, and 49.6 years for females. For every 100 females there are 64.3 males.