Last updated: 2025 BLS data · Page refreshed:
Illinois employs 1,550 Environmental Scientists and Specialists, Including Health professionals, below the national average concentration.
Data: BLS OEWS 2025 • Illinois employment outlook • Updated 2026-05-19
The location quotient (LQ) of 0.89 indicates that Illinois has an average concentration of Environmental Scientists and Specialists, Including Health professionals, similar to the national average employment distribution.
Note: Location Quotient (LQ) is the ratio of the percentage of workers in an occupation in a given area to the percentage in that occupation nationwide. An LQ > 1.0 means above-average concentration; < 1.0 means below-average.
The average annual salary for a Environmental Scientists and Specialists, Including Health in Illinois is $92,260. For a detailed breakdown by percentile, entry-level, median, and senior salaries, see the comprehensive salary guide below.
Illinois employs approximately 1,550 Environmental Scientists and Specialists, Including Health professionals (2025 BLS data). This ranks Illinois for this occupation nationwide.
Illinois has average or below-average concentration of Environmental Scientists and Specialists, Including Health jobs (LQ: 0.89). A Location Quotient above 1.0 indicates higher-than-average demand.
The average (mean) salary for Environmental Scientists and Specialists, Including Health in Illinois is $92260/year. See our detailed salary page for percentile breakdowns.
Location Quotient measures how concentrated an occupation is in a state compared to the national average. LQ > 1.0 means the state has more of that job proportionally. LQ > 1.2 indicates strong demand.
The top state for Environmental Scientists and Specialists, Including Health employment is California with 12,490 jobs.
Explore cost of living, median household income, and demographics for Illinois's largest cities.
Compare tuition, admissions, and graduate outcomes at Illinois's leading institutions.
Compare Environmental Scientists and Specialists, Including Health labor-market data (jobs, location quotient, salary) across the top-employing states.
Drill deeper into Environmental Scientists and Specialists, Including Health pay, hiring, and education data for Illinois.
Employment and location quotient data sourced from the U.S. Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics (OEWS) 2025. This data reflects total employment, jobs per 1,000 workers, location quotient, and average salary for Environmental Scientists and Specialists, Including Health (SOC 192041) in Illinois.