Grayslake, IL vs Oak Park, IL

Grayslake is moderately more affordable than Oak Park, with a 11.9% lower cost of living index. Grayslake scores 103 compared to 117 for Oak Park, where the US average is 100. This difference means residents of Oak Park can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Grayslake is $1,434/month compared to $1,456/month in Oak Park — a 2% difference. Home values follow the same pattern: Grayslake is more affordable at $293,900 median vs $456,300.

Median household income in Grayslake is $113,697 compared to $108,026 in Oak Park (+5.2%). Grayslake offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Grayslake spend roughly 15.1% of their income on rent, less than the 16.2% in Oak Park.

Climate-wise, Oak Park is notably warmer with an average of 52.1°F compared to 48.3°F in Grayslake. Grayslake receives more rainfall at 35.3" per year compared to 34.4" in Oak Park.