The Las Vegas Metropolitan Police Department provides most law enforcement services in the county. Exceptions include agencies that have their own police forces including; UNLV, the Clark County School District, and some other cities like Henderson, Mesquite, Boulder City and North Las Vegas.

Clark County Government is run by the Clark County Commission which consists of 7 members who are elected to serve staggered 4 year terms in biannual nonpartisan elections. After each election, the members elect a Chairperson who runs the Commission Meetings. Actual day to day operations are handled by the County Manager who is hired by the Commission.

The County operates out of the Clark County Government Center located in the City of Las Vegas. The building is unusual in shape, and includes an outdoor amphitheater where concerts and other events are held.

The Regional Justice Center replaced the Clark County Courthouse in 2005, and is located about 3 blocks from downtown Fremont Street, at 200 Lewis Avenue. Marriage licenses are issued at the Clark County Clerk’s Marriage License Bureau located on the Clark Street side of the Regional Justice Center. The Marriage License Bureau is open from 8:00 am to Midnight Monday through Thursday, Friday 8:00 am to Midnight Sunday, and is open 24 hours on holidays. See the Clark County Clerk Marriage License Bureau Homepage.

The Clark County Detention Center (CCDC) is located another block away at 300 S. Casino Center Blvd. Visitation is by a schedule defined by the housing location of the inmate. Visitors must arrive one hour prior to visitation for check in. Visits are 30 minutes long. Two persons per visit. Each inmate is allowed two visits per week. Valid state or federal issued picture identification is required for all visitors. Persons entering will be searched and checked for warrants (and if needed, arrested). Inmate conversations are monitored since all communications are done via closed-circuit television.

The unincorporated townships also have appointed boards that provide advice to the Clark County Commission.