City profile · United States · North America
Ontario
City population
171,214
#159
in United States
#29
in California
#3,341
worldwide
34.063, -117.651 · 3,641 km from Washington
About Ontario
Ontario is a city in California, United States with a population of 171,214. It is the 159th largest of the 3,112 cities of 15,000 or more listed in United States, and the 3,341st largest worldwide. It lies 3,641 km from Washington.
Key Facts
Country
Region
Rank in region
#29of 396
Elevation
306 m
Time zone
America/Los_Angeles
Coordinates
34.063, -117.651
Record updated
2017-03-09
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured.
Nearby Cities
All 3,112 in United StatesClosest listed cities by great-circle distance from the city centre.