Ontario, California
City of Ontario
The Ontario Convention Center in September 2006.
The Ontario Convention Center in September 2006.
Flag of Ontario, California
Official seal of Ontario, California
Coat of arms of Ontario, California
Coat of arms
Official logo of Ontario, California
Police seal
Motto(s): Southern California's Next Urban Center[1]
Location in San Bernardino County in the state of California
Location in San Bernardino County in the state of California
Ontario, California is located in the US
Ontario, California
Ontario, California
Location in the United States
Coordinates: 34°03′10″N 117°37′40″W
Country United States of America
State California
County San Bernardino
IncorporatedDecember 10, 1891[2]
Named forOntario, Canada
 • TypeCity Council / City Manager[1]
 • City Council[5]Mayor Paul S. Leon
Mayor Pro Tem Debra Dorst-Porada
Alan D. Wapner
Jim W. Bowman
Paul Vincent Avila
 • City treasurerJames R. Milhiser[3]
 • City managerAl C. Boling[4]
 • Total49.99 sq mi (129.49 km2)
 • Land49.93 sq mi (129.33 km2)
 • Water0.06 sq mi (0.16 km2)  0.13%
Elevation[7]1,004 ft (306 m)
Population (2010)[8]
 • Total163,924
 • Estimate (2016)[9]173,212
 • Rank4th in San Bernardino County
29th in California
146th in the United States
 • Density3,468.82/sq mi (1,339.31/km2)
Time zonePacific (UTC−8)
 • Summer (DST)PDT (UTC−7)
ZIP codes91758, 91761, 91762, 91764
Area code909
FIPS code06-53896
GNIS feature IDs16527642411323