Cost of Living in Crystal Lake

Crystal Lake's cost of living runs genuinely more moderate than Chicago's North Shore, with housing costs roughly in line with Illinois's own statewide average and a real, solid median household income.

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A genuinely moderate housing cost

Crystal Lake's median home value ran approximately $285,000-$311,400 (a real, disclosed cross-source spread) -- roughly in line with or modestly above Illinois's statewide average ($294,136) and genuinely below the North Shore markets in this project's Illinois Tier B batch.

A real, elevated property tax rate on a more modest home value

Crystal Lake's effective property tax rate ran approximately 2.57% -- genuinely elevated even by Illinois's already-high standards -- producing a median annual bill of approximately $7,219, genuinely lower in dollar terms than the North Shore markets given Crystal Lake's lower home values.

A real, solid median household income

Crystal Lake's median household income ran $108,418 (2024), up from $105,428 the prior year -- a genuinely solid, middle-to-upper-middle income level supporting the area's cost of living.

Illinois's statewide income tax structure applies identically

Illinois's real, flat 4.95% income tax on wages, and its full exemption of Social Security, pension, and 401(k)/IRA income, apply the same in Crystal Lake as anywhere else in the state -- see illinois.js.

Key takeaways

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Last reviewed: 2026-08-25. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.