Science & Research Illinois (IL) Rank #24 of 50

Geologist Salary in Illinois

The median geologist salary in Illinois is $79,496 per year, which is 5% below the national median of $83,680.

Median Salary

$79,496

vs National

$-4,184

State Rank

#24 of 50

Cost of Living

95%

Geologist Salary in Illinois by Experience

In Illinois, an entry-level geologist earns around $51,300, while experienced professionals earn up to $133,000 per year. The cost of living index in Illinois is 95% of the national average.

Entry Level (0-2 yrs)

$51,300

$-2,700 vs national

Mid Level (3-7 yrs)

$80,750

$-4,250 vs national

Senior Level (8+ yrs)

$133,000

$-7,000 vs national

Salary Percentiles in Illinois

Percentile	IL Salary	National	Difference
10th Percentile	$48,450	$51,000	$-2,550
25th Percentile	$59,850	$63,000	$-3,150
Median (50th)	$79,496	$83,680	$-4,184
75th Percentile	$106,400	$112,000	$-5,600
90th Percentile	$140,600	$148,000	$-7,400

Geologist Salary by City in Illinois

The largest employment areas for geologists in Illinois include Chicago, Aurora, Naperville, and Rockford. Salaries vary by city based on local cost of living and demand.

Chicago, IL

$89,538

Pop. 2,693,976 · COL 107%

Aurora, IL

$79,496

Pop. 197,757 · COL 95%

Naperville, IL

$90,374

Pop. 149,540 · COL 108%

Rockford, IL

$68,618

Pop. 148,655 · COL 82%

Springfield, IL

$71,128

Pop. 114,394 · COL 85%

How to Become a Geologist in Illinois

Education

Most geologist positions require a bachelor's degree. Illinois has several accredited institutions offering relevant programs.

Key Skills

Field GeologyGISRock AnalysisStratigraphyEnvironmental AssessmentTechnical Writing

Job Outlook in Illinois

Nationally, geologist employment is projected to grow 5% over the next decade (faster than average). Illinois's demand may vary based on local industry trends.