Colo. Rev. Stat. § 17-26-102
The sheriff of the county, in person or by deputy appointed for that purpose, shall be the keeper of the county jail. He shall be responsible for the manner in which the same is kept. He shall see that the same is kept clean, safe, and wholesome. The expenses of keeping the jail in good order and repair and of lighting and warming that part thereof wherein prisoners are confined and the office in the jail shall be paid by the county wherein the jail is situated. Nothing in this section shall authorize the lighting or warming of that part of the jail occupied by the keeper thereof as his dwelling house.
C.R.S. § 17-26-102
This section is similar to former § 27-26-102 as it existed prior to 1977.
For the sheriff as custodian of the jail, see also § 30-10-511.