Latest Data (2015)
Population 171,214
Nationwide Rank 147

Quick Facts

Ontario, California is the 147th largest city in the United States as of 2015.

Ontario, California is a city.

Ontario, California is as large as it has ever been. In 2015 Ontario had its largest population ever.

Ontario, California's growth is below average. 61% of similarly sized cities are growing faster since 2000.

Ontario, California Border Map

Similarly Sized Cities

Rank Name Growth
2000-2015
141 Rancho Cucamonga, California 35.7%
142 Cape Coral, Florida 69.5%
143 Santa Rosa, California 17.2%
144 Vancouver, Washington 17.9%
145 Sioux Falls, South Dakota 36.5%
146 Peoria, Arizona 54.3%
147 Ontario, California 7.9%
148 Jackson, Mississippi -7.8%
149 Elk Grove, California 104.3%
150 Springfield, Missouri 9.5%
151 Pembroke Pines, Florida 20.5%
152 Salem, Oregon 19.3%
153 Corona, California 27.2%

Demographics

Population History

Year Population Rank in US
2015 171,214 147
2014 169,089 146
2013 167,500 144
2012 167,211 143
2011 166,021 143
2010 163,924 143
2009 171,603 139
2008 170,947 136
2007 169,605 137
2006 170,865 131
2005 170,630 131
2004 168,068 128
2003 165,931 129
2002 163,857 128
2001 161,251 129
2000 158,664 131
1990 133,270 137