When Ontario started to push for a larger area of incorporation, Upland residents expressed concern. The area of land that Ontario wanted included the Upland Post Office, the tracks for the Atchison, Topeka and Santa Fe Railroad, and the train depot. On March 12, 1906, the San Bernardino Board of Supervisors conducted a two-day hearing and agreed that a vote for incorporation should take place. On May 5, 1906 Upland approved their vote for incorporation with 183 in favor and 19 against. The city was officially created on May 15, 1906 by the Secretary of State in Sacramento. In 1935, Upland's boundary lines were redrawn to include the land that was annexed in Ontario's 1902 expansion.