Constitution of Ohio, 1802 Section 3

No new county shall be established by the general assembly, which shall reduce the county or counties, or either of them, from which it shall be taken, to less contents than four hundred square miles; nor shall any county be laid off, of less contents. Every new county, as to the right of suffrage and representation, shall be considered as a part of the county or counties from which it was taken, until entitled by numbers to the right of representation.