Blue Island, IL vs South Beloit, IL

South Beloit is moderately more affordable than Blue Island, with a 13% lower cost of living index. Blue Island scores 82 compared to 73 for South Beloit, where the US average is 100. This difference means residents of Blue Island can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Blue Island is $1,071/month compared to $925/month in South Beloit — a 16% difference. Home values follow the same pattern: South Beloit is more affordable at $160,800 median vs $169,800.

Median household income in Blue Island is $60,965 compared to $81,836 in South Beloit (-25.5%). South Beloit offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Blue Island spend roughly 21.1% of their income on rent, more than the 13.6% in South Beloit.