Chemeketa Park lies in the unincorporated area of Santa Clara County. Districts for local elected representatives are:  Most of the roads within Chemeketa Park are considered private, and are not maintained by the County. The water system is also privately owned by the community and draws from natural sources and creeks within the Santa Cruz Mountains. The Chemeketa Park Mutual Water Company was incorporated in 1929. Each property owner is a member and shareholder in the water company and may take part in its management. A five-member board is elected from the membership at an annual meeting each Spring. Board members, who are not paid for their service, meet monthly, with meetings open to all members. The board is responsible for hiring the water master and bookkeeper and maintaining the roads. Each property owner pays a set fee each month for water and roads. Additionally, the water company owns and maintains a clubhouse that is used for meetings and community events. A separate volunteer group organizes the events, such as bluegrass music concerts and family picnics. Individual members may also arrange to use the clubhouse for private events.