St. Paul is a city located in Lee County, Iowa. St. Paul has a 2026 population of 105. St. Paul is currently declining at a rate of 0% annually and its population has decreased by -2.78% since the most recent census, which recorded a population of 108 in 2020.
The median household income in St. Paul is $72,500 with a poverty rate of 0%. The median age in St. Paul is 40.3 years: 40.8 years for males, and 39 years for females. For every 100 females there are 54.8 males.