Salary data is based on the Decatur, IL metropolitan area and applied to Decatur using local cost-of-living adjustments.

Astronomers Salaries in Decatur, IL

Average Base Pay

$121,709/yr

6% below national average

Monthly

$10,142

Hourly

$59

Cost Index

Astronomers in Decatur, IL earn an average of $121,709 per year, with most salaries falling between $97,367 and $146,051 depending on experience, employer, and specialization. At 6% below the national average, Decatur offers a more modest rate for this role, in part reflecting a local cost of living index of 82. For professionals evaluating a move or negotiating an offer, the headline salary is only part of the picture—what matters most is how far that income actually goes once taxes, rent, and daily expenses are factored in. The sections below break that down in full for Decatur.

Salary Range

The chart below shows the full compensation spectrum for this role, from entry-level to senior positions. The highlighted center bars represent the 25th–75th percentile band where most professionals are paid.

$91K
Low

$122K
Median

$152K
High

25th percentile: $103K75th percentile: $140K

About Astronomers

Research Scientists conduct original scientific investigation to advance knowledge or develop practical applications in fields ranging from biology and chemistry to materials science, physics, and computer science. In academic settings, they design experiments, collect and analyze data, develop and test hypotheses, and publish findings in peer-reviewed journals. In corporate or government research settings, the work is often more applied—translating scientific knowledge into new products, processes, or technologies with commercial or policy value. The research process demands rigorous experimental design, statistical analysis, and critical interpretation of results. Research scientists must command the existing literature in their field, position their work relative to prior knowledge, and communicate findings to both scientific and lay audiences. Collaboration with other scientists, technicians, and sometimes clinicians or engineers is standard, as is mentorship of graduate students or junior researchers. Securing research funding through competitive grant applications is a critical skill in academic research careers. A doctoral degree (PhD) is the standard entry-level credential for independent research positions.

What Astronomers Do

Design and conduct original experiments to test hypotheses
Analyze experimental data using statistical methods and domain-specific tools
Review and synthesize scientific literature relevant to the research area
Write research papers, grant proposals, and technical reports
Present findings at scientific conferences and institutional seminars
Mentor and supervise graduate students, postdoctoral researchers, or technicians
Collaborate with other scientists and engineers on interdisciplinary projects
Maintain laboratory notebooks and ensure research reproducibility

Key Skills & Qualifications

Deep domain expertise in relevant scientific field
Experimental design including controls, replication, and statistical power
Statistical analysis using R, Python, or specialized domain software
Scientific writing for journal submission and grant applications
Laboratory techniques specific to discipline
Literature review and critical analysis of scientific evidence
PhD in relevant scientific discipline
Grant writing and funding acquisition

Career Path

Research Associate / Lab Technician
Postdoctoral Researcher
Research Scientist
Senior Research Scientist / Principal Investigator
Department Director / Chief Scientific Officer

Astronomers Market in Decatur, IL

Salary Competitiveness

Decatur currently pays 6% below the national median for Astronomers. This gap can reflect a lower regional cost base, thinner employer density, or a surplus of qualified candidates relative to open roles—factors worth factoring into any offer negotiation or relocation calculation.

Cost of Living Impact

Decatur's cost of living runs below the national average, which works in favor of this salary. Essential monthly expenses account for approximately 29% of take-home pay—a ratio that leaves meaningful room for savings, debt reduction, and discretionary spending compared with higher-cost metros.

Effective Purchasing Power

After adjusting for local taxes and cost of living, a Astronomers earning $121,709 in Decatur reaches a strong purchasing-power position. The effective standard of living this income supports is materially higher than the gross number alone implies—a useful data point for professionals comparing offers across metro areas.

vs. National Avg

-6%

Cost Pressure

29%

Purchasing Power

Strong

Take-Home Pay Calculator

Enter any gross salary to see how federal and state taxes affect your actual take-home pay, broken down by year, month, and week. Results use an estimated effective tax rate of 27% based on this location and income level.

Annual Salary

Take-home (73%)Taxes (27%)

Annual Net

$88,848

Monthly

$7,404

Weekly

$1,709

Eff. Tax Rate

27%

A gross salary of $121,709 for a Astronomers in Decatur translates to roughly $7,404 in monthly take-home pay after estimated federal and state taxes. Set against monthly living costs of $2,124—covering housing, food, transportation, utilities, and healthcare—that leaves approximately $5,280 per month in disposable income. That margin, not the gross number, is what determines whether you can comfortably cover rent, build savings, and afford discretionary spending in Decatur's current market.

How far does this salary go in Decatur?

Cost of Living in Decatur

Estimated monthly expenses for a single person in Decatur, benchmarked against US regional price indices for housing, food, transportation, utilities, and healthcare.

Cost Index

Below Avg — US average is 100. Based on a single person (1-bed apartment).

🏠Housing / Rent$1,222/mo

🍔Food & Groceries$407/mo

🚗Transportation$110/mo

💡Utilities$143/mo

🏥Healthcare$242/mo

Monthly$2,124

Annual$25,488

Disposable Income$5,280

Financial Reality Check

This section compares estimated monthly take-home pay against typical living costs in Decatur to show your real disposable income—the amount remaining after essential bills are paid each month.

Monthly Take-Home

$7,404

Living Costs

$2,124

Disposable

$5,280

Cost Index

Lifestyle

Comfortable

With a monthly take-home of $7,404, your estimated living costs in Decatur are $2,124 ($25,488/yr). This leaves $5,280 per month in disposable income, indicating a comfortable standard of living. Decatur's cost of living is 18% below the national average.

Overall, a Astronomers earning $121,709 in Decatur falls into a comfortable lifestyle tier and has meaningful room to save, invest, and absorb unexpected expenses without financial stress. With a cost index of 82, Decatur is 18% more affordable than the national average, which extends your purchasing power. Regardless of tier, prioritizing retirement contributions, an emergency fund of three to six months' expenses, and incremental debt reduction will yield the greatest long-term financial stability—especially as living costs in Decatur continue to evolve.