Prague is a city in Lincoln County, Oklahoma, United States. The population was 2,356 at the 2020 census, an 1.76 percent decrease f…Prague is a city in Lincoln County, Oklahoma, United States. The population was 2,356 at the 2020 census, an 1.76 percent decrease from the figure of 2,388 in 2010. Czech immigrants founded the city, and named it after the capital of the present-day Czech Republic.