Colo. Rev. Stat. § 30-15-410
County courts, in their respective counties, have jurisdiction in prosecutions of violations of county ordinances. The simplified county court procedures set forth in part 1 of article 2 of title 16, C.R.S., and the penalty assessment procedures set forth in part 2 of said article shall be applicable to the prosecution of violations of county ordinances. Any summons and complaint brought in any county court shall be filed in the name of the county by and on behalf of the people of the state of Colorado. Any process issued from a county court shall be likewise denominated. It is the duty of the sheriff and undersheriff and deputies, in their respective counties, to enforce the provisions of county ordinances.
C.R.S. § 30-15-410
For the jurisdiction of the county court generally, see §§ 13-6-103 through 13-6-106.