Illinois·Protective Service Occupations·SOC 33-3021

Best Detective programs in Illinois, ranked by enrollment

Conduct investigations related to suspected violations of federal, state, or local laws to prevent or solve.

34 schools in Illinois run programs that feed this job, graduating 805 people a year. The job pays a median of $91,190 in Illinois across about 3,270 jobs (BLS OEWS May 2025).

Also calledDetectiveCriminalistInvestigatorSpecial AgentForensic SpecialistCriminal InvestigatorCrime Scene TechnicianCrime Scene Investigator (CSI)
Graduates / yr
805
in Illinois
Median pay · Illinois
$91,190
BLS OEWS May 2025
Jobs in state
3,270
people employed
Schools
34
with a feeder program
Avg graduation rate
44%
across those schools
Median net price
$22,446
per year, IPEDS

Fields of study in Illinois that lead to this job

Grouped at the 4-digit CIP level. Numbers are graduates per year in this state.

5 programs in Illinois that lead to this job

Ranked by graduates per year in Illinois (IPEDS completions). Graduate earnings and debt are national College Scorecard figures reported at the 4-digit CIP level, so specializations within one field share a figure. Each program also links to its own Illinois page.

Degree programs that lead to this occupation, ranked by graduates per year
#ProgramGraduates / yrShare of pipelineSchoolsGrad earnings (1 yr)Median debt
1
CIP 43.0107In Illinois
676
84.0%
29$37,408$24,069
2
CIP 43.0100In Illinois
100
12.4%
3$37,408$24,069
3
CIP 43.0403In Illinois
22
2.7%
1$40,889$25,000
4
CIP 43.0405In Illinois
4
0.5%
1$40,889$25,000
5
CIP 03.0208In Illinois
3
0.4%
1$37,946$24,125

Top 25 schools in Illinois

Ranked by graduates per year into this job. Graduate earnings are reported for 7 of the 34 schools in this state.

Schools ranked by graduates per year into this occupation
#SchoolGraduates / yrTop feeder programGrad earnings (1 yr)Grad rateNet priceAcceptance
1Southwestern Illinois College
Belleville, IL Public · 1 feeder programs
253Criminal Justice/Police Science36%
2Loyola University Chicago
Chicago, IL Private not-for-profit · 1 feeder programs
82Criminal Justice and Corrections, General$38,95373%$33,45482%
3Eastern Illinois University
Charleston, IL Public · 2 feeder programs
51Criminal Justice/Police Science$40,48947%65%
4Kankakee Community College
Kankakee, IL Public · 1 feeder programs
45Criminal Justice/Police Science32%
5College of DuPage
Glen Ellyn, IL Public · 1 feeder programs
39Criminal Justice/Police Science$28,74925%
6College of Lake County
Grayslake, IL Public · 1 feeder programs
32Criminal Justice/Police Science37%
7Illinois Valley Community College
Oglesby, IL Public · 1 feeder programs
29Criminal Justice/Police Science42%
8McHenry County College
Crystal Lake, IL Public · 1 feeder programs
29Criminal Justice/Police Science37%
9Moraine Valley Community College
Palos Hills, IL Public · 1 feeder programs
29Criminal Justice/Police Science40%
10Lewis and Clark Community College
Godfrey, IL Public · 1 feeder programs
28Criminal Justice/Police Science$31,76344%
11Joliet Junior College
Joliet, IL Public · 1 feeder programs
24Criminal Justice/Police Science21%
12William Rainey Harper College
Palatine, IL Public · 1 feeder programs
22Criminal Justice/Police Science$38,47448%
13Elgin Community College
Elgin, IL Public · 1 feeder programs
21Criminal Justice/Police Science41%
14Lake Land College
Mattoon, IL Public · 1 feeder programs
13Criminal Justice/Police Science58%
15Southeastern Illinois College
Harrisburg, IL Public · 1 feeder programs
12Criminal Justice/Police Science55%
16Morton College
Cicero, IL Public · 1 feeder programs
11Criminal Justice/Police Science$31,14331%
17Oakton College
Des Plaines, IL Public · 1 feeder programs
10Criminal Justice/Police Science37%
18Eureka College
Eureka, IL Private not-for-profit · 1 feeder programs
9Criminal Justice and Corrections, General$37,88642%$22,44685%
19National Louis University
Chicago, IL Private not-for-profit · 1 feeder programs
9Criminal Justice and Corrections, General30%$18,90495%
20Rock Valley College
Rockford, IL Public · 1 feeder programs
8Criminal Justice/Police Science37%
21Lincoln Land Community College
Springfield, IL Public · 1 feeder programs
7Criminal Justice/Police Science48%
22Rend Lake College
Ina, IL Public · 1 feeder programs
7Criminal Justice/Police Science63%
23Illinois State University
Normal, IL Public · 1 feeder programs
4Financial Forensics and Fraud Investigation65%88%
24John A Logan College
Carterville, IL Public · 1 feeder programs
4Criminal Justice/Police Science46%
25Richland Community College
Decatur, IL Public · 1 feeder programs
4Criminal Justice/Police Science60%

All 34 schools in Illinois

Every school in Illinois with a program that feeds this job, ordered by graduates per year. Earnings are shown for the ranked schools above; open a school profile for the rest.

All schools in Illinois that feed this occupation
SchoolCityControlGraduates / yrFeeder programs
Southwestern Illinois CollegeBellevillePublic2531
Loyola University ChicagoChicagoPrivate not-for-profit821
Eastern Illinois UniversityCharlestonPublic512
Kankakee Community CollegeKankakeePublic451
College of DuPageGlen EllynPublic391
College of Lake CountyGrayslakePublic321
Illinois Valley Community CollegeOglesbyPublic291
McHenry County CollegeCrystal LakePublic291
Moraine Valley Community CollegePalos HillsPublic291
Lewis and Clark Community CollegeGodfreyPublic281
Joliet Junior CollegeJolietPublic241
William Rainey Harper CollegePalatinePublic221
Elgin Community CollegeElginPublic211
Lake Land CollegeMattoonPublic131
Southeastern Illinois CollegeHarrisburgPublic121

What detectives and criminal investigators earn in Illinois

What people already working in this job earn (BLS OEWS May 2025). Not graduate earnings.

Median annual in Illinois
$91,190
Mean annual
$97,480
Jobs in state
3,270
What the range looks like
10th pct$53,960Median$91,19090th pct$157,060
Versus the national median
-2.8%

U.S. median $93,790. Illinois pays below the national figure.

Job concentration
0.73×

1.00× means the state has its expected share of these jobs.

Metro areas in Illinois

Chicago-Naperville-Elgin, IL-IN
$102,260median
2,290 jobs
Rockford, IL
$104,150median
130 jobs
Springfield, IL
$88,790median
120 jobs
Champaign-Urbana, IL
$73,430median
60 jobs
Peoria, IL
$73,700median
80 jobs

Job outlook

Bureau of Labor Statistics Employment Projections, 2024 to 2034.

Projected growth 2024–34
-0.7%
Little or no change
Openings per year
7,800
new jobs plus replacements
Employment change
-800
117,900 → 117,100
Typical entry education
High school diploma or equivalent
Plus moderate-term on-the-job training

Growth and openings are national. The Bureau of Labor Statistics does not publish employment projections at state level, so these figures describe the occupation across the whole U.S., not this state alone.

How to get in

The full skills, tools, and day-to-day breakdown lives on the national Detectives and Criminal Investigators page.

How to become a Detective

Job zone 3 of 5 · SVP 6.0 to < 7.0
Typical entry education
High school diploma or equivalent
Work experience needed
Less than 5 years
On-the-job training
Moderate-term on-the-job training

Most occupations in this zone require training in vocational schools, related on-the-job experience, or an associate's degree.

Previous work-related skill, knowledge, or experience is required for these occupations. For example, an electrician must have completed three or four years of apprenticeship or several years of vocational training, and often must have passed a licensing exam, in order to perform the job.

Employees in these occupations usually need one or two years of training involving both on-the-job experience and informal training with experienced workers. A recognized apprenticeship program may be associated with these occupations.

Top skills

Active ListeningSpeakingReading ComprehensionCritical ThinkingWritingActive Learning

The same job in other states

Where else this occupation employs the most people, and what it pays there.

Related careers in Illinois

Every major mapped to this job

The official federal mapping behind the rankings above.

All 14 majors mapped to Detectives and Criminal Investigators10 of them graduated someone in the latest IPEDS year. NCES CIP 2020 → SOC 2018 crosswalk.+
  • 03.0208Environmental/Natural Resources Law Enforcement and Protective Services
  • 29.0203Signal/Geospatial Intelligence
  • 43.0100Criminal Justice and Corrections, General
  • 43.0107Criminal Justice/Police Science
  • 43.0114Law Enforcement Investigation and Interviewing
  • 43.0115Law Enforcement Record-Keeping and Evidence Management(no graduates reported)
  • 43.0121Suspension and Debarment Investigation(no graduates reported)
  • 43.0122Maritime Law Enforcement(no graduates reported)
  • 43.0123Cultural/Archaelogical Resources Protection(no graduates reported)
  • 43.0402Criminalistics and Criminal Science
  • 43.0403Cyber/Computer Forensics and Counterterrorism
  • 43.0405Financial Forensics and Fraud Investigation
  • 43.0407Geospatial Intelligence
  • 43.0408Law Enforcement Intelligence Analysis

Common questions

Answers for people weighing detectives and criminal investigators programs in Illinois.

What degree do you need to become a Detective?+

High school diploma or equivalent is the typical entry-level education BLS reports for this occupation. The most common program people actually graduate from is Criminal Justice/Police Science, which awarded 676 degrees in Illinois in 2024-25, 84.0% of everyone graduating from a program that feeds this career.

Which college majors lead to becoming a Detective?+

The NCES CIP-to-SOC crosswalk maps 5 programs to this occupation. The largest are Criminal Justice and Corrections, Security Science and Technology, Environmental/Natural Resources Management and Policy. Together they graduate about 805 people a year in Illinois.

How much do detectives and criminal investigators earn in Illinois?+

The median is $91,190 a year (BLS OEWS May 2025). That is 2.8% below the U.S. median of $93,790. This is pay for people already working in the occupation, not the same thing as graduate earnings one year after finishing a degree.

Is demand for detectives and criminal investigators growing?+

BLS projects a -0.7% change in employment between 2024 and 2034, little or no change, with roughly 7,800 openings a year nationally once retirements and job changes are counted.

How many schools offer programs for this career in Illinois?+

34 institutions in Illinois reported graduates from at least one of the 5 programs that feed this occupation in IPEDS 2024-25. Rankings on this page use graduates per year, because the federal data publishes no enrollment count by program.

What other job titles do detectives and criminal investigators work under?+

Employers advertise this work under many names. O*NET records Detective, Criminalist, Investigator, Special Agent, Forensic Specialist, Criminal Investigator among the most commonly reported, all mapping to SOC 33-3021.

Detectives and Criminal Investigators in other statesCaliforniaFloridaTexasArizonaNew YorkOhioNew JerseyMinnesota

About the data on this page

Rankings use IPEDS completions 2024–25, degrees awarded per year. That is the closest federal measure of how many people a program puts into a career, because no federal dataset publishes enrollment by program. Wages and employment come from BLS OEWS May 2025, growth and openings from BLS Employment Projections 2024-34, and which majors lead to which jobs from the NCES CIP 2020 to SOC 2018 crosswalk. Occupation descriptions, tasks, skills and tools are O*NET 30.3 (CC BY 4.0, U.S. Department of Labor/ETA).

  • BLS Occupational Employment & Wage Statistics

    May 2025

    Wages, employment counts, location quotients and metro breakdowns.

  • BLS Employment Projections

    2024–34

    Projected growth, annual openings and typical entry-level education.

  • IPEDS Completions

    2024-25 (provisional)

    Graduates per year by program and institution — the ranking metric.

  • College Scorecard, Field of Study

    2020-21 cohorts

    Median graduate earnings one year after completion, and median debt.

  • Census Post-Secondary Employment Outcomes

    latest available

    Graduate earnings 1/5/10 years out, where the state participates.

  • NCES CIP 2020 and the CIP-to-SOC 2018 crosswalk

    CIP 2020 / SOC 2018

    Which college programs officially lead to this occupation.

  • O*NET Database 30.3

    30.3

    Tasks, skills, knowledge, tools, job zone and alternate job titles.

    Official source →CC BY 4.0, U.S. Department of Labor / ETA

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