Ontario, CA vs Rocklin, CA
Ontario is moderately more affordable than Rocklin, with a 10.8% lower cost of living index. Ontario scores 142 compared to 159 for Rocklin, where the US average is 100. This difference means residents of Rocklin can expect to pay noticeably more for everyday expenses, housing, and services.
On the housing front, median rent in Ontario is $1,916/month compared to $2,178/month in Rocklin — a 12% difference. Home values follow the same pattern: Ontario is more affordable at $568,000 median vs $673,300.
Median household income in Ontario is $82,806 compared to $120,916 in Rocklin (-31.5%). While Rocklin is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Ontario spend roughly 27.8% of their income on rent, more than the 21.6% in Rocklin.
Climate-wise, Ontario is notably warmer with an average of 66.8°F compared to 63.4°F in Rocklin. Rocklin receives more rainfall at 19.2" per year compared to 11.6" in Ontario.
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HUD Fair Market Rent (FY 2026) — metro area average
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Climate
NOAA 30-year normals (1991-2020)