Oak Hills, CA vs Rosemont, CA
Rosemont is moderately more affordable than Oak Hills, with a 11.3% lower cost of living index. Oak Hills scores 140 compared to 126 for Rosemont, where the US average is 100. This difference means residents of Oak Hills can expect to pay noticeably more for everyday expenses, housing, and services.
On the housing front, median rent in Oak Hills is $2,102/month compared to $1,719/month in Rosemont — a 22% difference. Home values follow the same pattern: Rosemont is more affordable at $436,400 median vs $475,500.
Median household income in Oak Hills is $98,424 compared to $86,178 in Rosemont (+14.2%). While Oak Hills is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Oak Hills spend roughly 25.6% of their income on rent, more than the 23.9% in Rosemont.
Climate-wise, Oak Hills is notably warmer with an average of 66.8°F compared to 63.4°F in Rosemont. Rosemont receives more rainfall at 19.2" per year compared to 11.6" in Oak Hills.
Income & Cost
Housing
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Rent by Bedroom Size
HUD Fair Market Rent (FY 2026) — metro area average
Everyday Prices
BLS Average Prices by metro area
Climate
NOAA 30-year normals (1991-2020)