Colorado Revised Statutes Title 23. Postsecondary Education § 23-71-103. Districts organized--when

Local college districts in Colorado may be organized in an area approved for organization by the state board for community colleges and occupational education. The area to be approved for organization shall also have a twelfth-grade school population, as determined by the immediately preceding school census, of four hundred or more and a valuation for assessment at the time of organization of such district of sixty million dollars or more. A district may be entirely within one county or partly in two or more counties. Any existing school districts shall be entirely included or entirely excluded.