what county is new prague, mn in?
Homefacts City Report. New Prague is located in Le Sueur County, MN. The population is 7,273, making New Prague the largest city in Le Sueur County. There are 7 public schools in New Prague with an average Homefacts rating of A. The total crime rate for New Prague is very low, and there are 0 registered sex offenders residing in the city.