The Oak Park Municipal Advisory Council will ask the Ventura County Board of Supervisors to nominate the community to be the county's 11th city.
The council voted Tuesday to make the request but postponed beginning a full study of incorporation until it is determined whether county would pay for the study or charge Oak Park.
Supervisors will be asked to nominate Oak Park for cityhood because the advisory council does not have the authority to take such an action.
Last month, a preliminary study showed that the community of about 13,500 people could support itself as a city in one typical year of operation.
A full incorporation study would project the city of Oak Park's finances over the first five years.
The study would probably take four to six months to complete and would cost about $25,000 to $30,000, said Robert L. Braitman, executive officer of the Local Agency Formation Commission. LAFCO also would have to approve the new city's boundaries.