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Verified by IL Board of Science

Geologist Licensing in Illinois

Review current requirements, exam details, renewal cycle, and salary outlook for geologist in Illinois, including See agency and board contact links.

Last verified: Feb 21, 2026

Current

Application Fee

See agency

Exam Requirement

State exam required

Renewal Cycle

See board renewal rules

Licensing Blueprint for Geologist in Illinois

Estimated timeline: Varies by board

Core Requirements

  1. 1

    Education: No educational requirements.

  2. 2

    Experience: No experience required.

  3. 3

    Background/Criminal Review: No criminal record prohibitions.

  4. 4

    License Type: Stand-alone license.

Exam and processing details

  • State exam required

Continuing education and program notes

  • No continuing education requirement to maintain license

Application Snapshot

  1. Licensing Authority

    Illinois Department of Financial and Professional Regulation

  2. Current Filing Fee

    See agency

  3. Renewal Cycle

    See board renewal rules

  4. Salary Position

    $85,420 median (14% below national)

  5. State Salary Rank

    #24 of 50 states

Step-by-Step Process (7)

  1. 1. Meet Illinois eligibility requirements for Geologist licensure.
  2. 2. Complete required education or training: No educational requirements.
  3. 3. Document required supervised experience: No experience required.
  4. 4. Pass required examination steps: State exam required.
  5. 5. Prepare supporting documentation (background check: No criminal record prohibitions; Background/Criminal Review: No criminal record prohibitions.).
  6. 6. Submit the application to Illinois Department of Financial and Professional Regulation and monitor board communications.
  7. 7. Maintain post-licensure compliance (continuing education: No continuing education requirement to maintain license).

Salary Insights in Illinois

With a median salary of $85,420, Geologists in Illinois earn 14% below the national median of $99,240. Illinois ranks #24 among 50 states. The typical licensing timeline is Varies by board.

State Hiring Climate (QCEW)

Rising

QoQ Employment Change

+2.1%

Average Weekly Wage

$1,451

Median annual salary

$85,420

Hourly estimate

$41.07
14% below national median

Difference: -$13,820

Percentile Distribution

Annual compensation
  • P1010th percentile$62,770
  • P2525th percentile$70,790
  • P50Median$85,420
  • P7575th percentile$114,820
  • P9090th percentile$133,590

State vs National Median

State: $85,420
National: $99,240

Total employment: 320 | Annual openings: N/A

Geologist Salary Ranking

#24 of 50 statesfor Geologist median salary
RankStateMedian Salary
#1Texas$155,330
#2Rhode Island$128,870
#3Oklahoma$128,240
#4Mississippi$113,730
#5California$111,400

Nearby States Comparison

Geologist licensing across the region
StateMedian SalaryEducationExamTimeline
Illinois$85,420No educational requirementsState exam requiredVaries by board
Wisconsin$80,610No educational requirementsNo exam requiredVaries by board
Iowa$73,070Degree requiredBoth state and third-party exams requiredVaries by board
Missouri$95,210Degree requiredThird-party exam required3 years
Kentucky$68,990Degree requiredThird-party exam requiredVaries by board
Indiana$79,290Degree requiredThird-party exam required5-7 years

License by Endorsement

Transfer requirements are state-specific. Use this quick matrix as a planning signal, then verify final endorsement rules with each board.

StateReciprocity ScoreTierNotes
Illinois54LowState-specific exam conditions may apply. Documented experience may be required.
Wisconsin54LowState-specific exam conditions may apply. Documented experience may be required.
Iowa56MediumState-specific exam conditions may apply. Documented experience may be required.
Missouri54LowState-specific exam conditions may apply. Documented experience may be required.
Kentucky54LowState-specific exam conditions may apply. Documented experience may be required.
Indiana54LowState-specific exam conditions may apply. Documented experience may be required.
  • License status indicator: Active.
  • Continuing education indicator: No continuing education requirement to maintain license.
  • Reciprocity and transfer rules vary by state board. Verify directly with the agency.

Official Licensing Agency

Official website verified

Illinois Department of Financial and Professional Regulation

320 West Washington, Springfield, IL, 62786

Phone: 2177828556

Related Careers in Illinois

ProfessionMedian SalaryEducationTimeline
Biological Technicians$49,710Specific course requiredVaries by board
Chemical Technicians$61,830Specific course requiredVaries by board
Environmental Science and Protection Technicians, Including Health$30,690Varies by state boardVaries by board
Environmental Scientist$89,010Varies by state boardVaries by board

FAQ

How long does it take to become a Geologist in Illinois?

Most applicants finish the licensing path in about Varies by board, but timing can change based on education track, exam scheduling, and board processing.

What exams are required for Geologists in Illinois?

Illinois lists State exam required as part of the licensure process for Geologists.

What education do you need to become a Geologist in Illinois?

The board typically expects No educational requirements for Geologist licensure in Illinois.

What is the typical Geologist salary in Illinois?

The median annual salary for Geologists in Illinois is $85,420. Salaries range from $62,770 (10th percentile) to $133,590 (90th percentile).

How does the Geologist salary in Illinois compare to the national average?

Geologists in Illinois earn 14% below the national median of $99,240, with a state median of $85,420.

How many Geologists work in Illinois?

Illinois employs approximately 320 Geologists according to BLS data.

Can I transfer my Geologist license to Illinois from another state?

Transfer requirements vary by board. License status indicator: Active. Continuing education indicator: No continuing education requirement to maintain license. Reciprocity and transfer rules vary by state board. Verify directly with the agency.

Who is the licensing agency for Geologists in Illinois?

The licensing agency is Illinois Department of Financial and Professional Regulation. Review agency details at https://www.idfpr.com/.

How often do you renew a Geologist license in Illinois?

Current guidance indicates a renewal cycle of See board renewal rules.