Cost of Living: Ontario, CA vs Simi Valley, CA (2026)

Ontario

California
152
VS

Simi Valley

California
200

Ontario is 24% cheaper than Simi Valley.

$1,916/mo ↓ 24%
Median Rent
$2,513/mo ↑ 31%
$82,806/yr ↓ 30%
Median Income
$117,703/yr ↑ 42%
$568,000 ↓ 25%
Home Value
$753,500 ↑ 33%
$1,967/mo ↓ 24%
Owner Costs
$2,576/mo ↑ 31%
178,347
Population
125,769

Tax Comparison

13.3%
Income Tax
13.3%
7.25%
State Sales Tax
7.25%
0.71%
Property Tax
0.71%

Affordability

27.8%
rent-to-income
Affordability
25.6%
rent-to-income

Detailed Comparison

When comparing Ontario, CA and Simi Valley, CA, the overall cost of living indices are 152 and 200 respectively (national median = 100). Rent is $597/month cheaper in Ontario, saving renters about $7,164/year.

Median household income is $34,897/year higher in Simi Valley. Home values also differ significantly — the median in Ontario is $568,000 compared to $753,500 in Simi Valley.

Both cities share the same state tax structure since they are in California.

Frequently Asked Questions

Ontario vs Simi Valley — common questions

Is Ontario or Simi Valley cheaper to live in?
Based on our cost index, Ontario is cheaper to live in with an index of 152 compared to 200 (US average = 100).
What is the rent difference between Ontario and Simi Valley?
Median rent in Ontario is $1,916/month and in Simi Valley it's $2,513/month — a difference of $597/month.
Which city has higher income, Ontario or Simi Valley?
Median household income is $82,806 in Ontario and $117,703 in Simi Valley. Median household income is $34,897/year higher in Simi Valley.
How do taxes compare between California and California?
Both cities are in California and share the same state tax rates: 13.3% income tax, 7.25% sales tax, and 0.71% property tax.
Should I move to Ontario or Simi Valley?
It depends on your priorities. Ontario has a cost index of 152 with median rent of $1,916/mo, while Simi Valley has a cost index of 200 with rent of $2,513/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View Ontario details → View Simi Valley details →

More Comparisons

Other cost of living comparisons for Ontario and Simi Valley

Ontario vs. Aurora Ontario vs. Eugene Ontario vs. Chattanooga Ontario vs. Elk Grove Ontario vs. Fort Lauderdale Ontario vs. Santa Rosa Simi Valley vs. Pearland Simi Valley vs. Thousand Oaks Simi Valley vs. Topeka Simi Valley vs. Allentown Simi Valley vs. Athens Simi Valley vs. Palm Bay