All Countries
Crystal Lake, IL
Full City Profile · Illinois · McHenry County County
3.8
/5.0
B+
Good
40,436
Population
2,129/sq mi density
$105,428
Median Income
$46,199 per capita
$287,400
Home Value
$367,174 Zillow
$1,431
Median Rent
29.8% income on rent
49°F
Avg Temperature
260 sunny days/yr
113
Violent Crime/100K
1,229 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$105,428 median income, 3.2% unemployment
A+
Affordability
5.0 / 5.0
$287,400 home value, $1,431/mo rent
F
Safety
1.0 / 5.0
113 violent crimes/100K
A
Education
4.4 / 5.0
42.0% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+1.4%
40,376 → 40,941
over 10 years
Annual Pop. Growth
+0.14%
Compound annual growth rate
Median Income Change
+33.3%
$79,081 → $105,428
nominal, not inflation-adjusted
Annual Income Growth
+2.92%
Compound annual growth rate
Population Over Time
Total population for Crystal Lake across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
41,344
+403 from 2023 (40,941)
Projected Median Income 2030
$128,960
+$23,532 from 2023 ($105,428)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 40,376 | — | $79,081 | — |
| 2015 | 40,329 | -0.1% | $81,509 | +3.1% |
| 2017 | 40,063 | -0.7% | $83,746 | +2.7% |
| 2019 | 39,778 | -0.7% | $87,578 | +4.6% |
| 2021 | 40,411 | +1.6% | $96,274 | +9.9% |
| 2023 | 40,941 | +1.3% | $105,428 | +9.5% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.