The composition of LAFCO Commissions varies from county to county. Riverside’s Commission consists of members who represent all levels of local government. These are: two County supervisors selected by the Board of Supervisors; two city council representatives selected by the city selection committee within Riverside County; two special district board members selected by the Special District Selection Committee, one public member selected by the other members of the commission and a Legal Counsel. Each Commission member serves a four-year term. Employed by the Commission, Riverside LAFCO also has an independent staff of six headed by an Executive Officer.

For each commissioner represented, county, city, special district, and public there is an alternate. Alternate members may attend LAFCO meetings but only vote on items when a regular member from their category is absent.