Mernie County is a county located in the extreme southern part of Ro-Kansas, its name has changed, since until 1990 its name was Marchina County, its capital is Noburg, its second city is Manpher, the population of Mernie County reaches 182,300 people according to the 2020 census, the economy of the county focuses mainly on its highway establishments in Manpher and the bustling commerce and urban life of Noburg.
Mernie County was founded on March 25, 1926, being founded with the hope of being an urban center of 15,000,000 inhabitants, larger than New Blockers City (12,000,000 at the time and the largest city in Roblox), but as this goal became impossible, the county began to develop naturally, like all other counties.