According to the most recent data on the cost of living, Ontario has an overall cost of living index of 124 which is 1.2x higher than the national index of 100.
Compared to only California, Ontario has a cost of living index that's 0.9x lower than California's index of 140.
The standard of living in Ontario ranks as #5,001 most affordable out of the 6,418 places we measured in California. By definition, that implies Ontario ranks as the #1,417 most expensive place in the Golden State.
|Living Expense||Ontario||California||National Average|
Housing swings affordability the most between places in California, so we broke down the statistics around housing costs into more detail. It's also important to consider median household incomes to make apples-to-apples comparisons across locations.
Home and income come data comes from the most recent US Census ACS 2014-2018.
|City||Population||Cost Of Living||Vs. Ontario||Rancho Cucamonga, CA||178,060||142||1.1x||Pomona, CA||151,124||126||1.0x||Jurupa Valley, CA||106,646||122||1.0x||Chino, CA||89,170||132||1.1x||Upland, CA||77,348||139||1.1x||Yorba Linda, CA||68,103||181||1.5x||Eastvale, CA||65,766||154||1.2x||Diamond Bar, CA||55,870||165||1.3x||Placentia, CA||52,049||156||1.3x||Montclair, CA||40,041||123||1.0x|