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Cook County Investigator Jobs (NOW HIRING)

Cook County State's Attorney

Chief Data Officer

Chicago, IL · On-site

$160 - $210/hr

The Cook County State's Attorney's Office (CCSAO) is a diverse and dedicated team of professionals ... Whether you are a legal professional, an investigator, or an administrative specialist, we value ...

SpecialtyRx

Pharmacist

Chicago, IL · On-site

$60 - $72.25/hr

NEW LOCATION -- COOK COUNTY, ILLINOIS NEW CLOSED-DOOR PHARMACY OPENING SOON! Competitive Pay ... Investigate and resolve medication-related inquiries. * Communicate effectively with nursing staff ...

Provest LLC

Process Server

Moline, IL · Remote

Residing within or near Cook County is preferred. Ideal Candidates * Experience in private investigation, law enforcement, or legal services is a plus. * Highly organized, professional, and detail ...

Provest LLC

Process Server

Pittsfield, IL · Remote

Residing within or near Cook County is preferred. Ideal Candidates * Experience in private investigation, law enforcement, or legal services is a plus. * Highly organized, professional, and detail ...

Provest LLC

Process Server

Mount Carmel, IL · Remote

Residing within or near Cook County is preferred. Ideal Candidates * Experience in private investigation, law enforcement, or legal services is a plus. * Highly organized, professional, and detail ...

Provest LLC

Process Server

Lawrenceville, IL · Remote

Residing within or near Cook County is preferred. Ideal Candidates * Experience in private investigation, law enforcement, or legal services is a plus. * Highly organized, professional, and detail ...

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All JobsCook County Investigator Jobs

Cook County Investigator information

See salary details

$35K

$65.2K

$89.5K

How much do cook county investigator jobs pay per year?

As of Jul 31, 2026, the average yearly pay for cook county investigator in the United States is $65,243.00, according to ZipRecruiter salary data. Most workers in this role earn between $54,000.00 and $75,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Cook County Investigator, and why are they important?

To thrive as a Cook County Investigator, you typically need a background in criminal justice or a related field, investigative experience, and often law enforcement certification. Proficiency with case management systems, evidence collection tools, and legal research databases is essential. Strong analytical thinking, attention to detail, and effective communication skills help investigators excel in gathering facts and presenting findings. These capabilities are critical to ensuring thorough, lawful investigations that support public safety and justice.

What are some common challenges faced by Cook County Investigators in their daily work?

Cook County Investigators often face challenges such as managing high caseloads, working under tight deadlines, and navigating complex legal procedures. They may need to balance fieldwork—like gathering evidence and interviewing witnesses—with extensive documentation and collaboration with attorneys or law enforcement. Additionally, investigators must adapt to rapidly changing case priorities and maintain strict confidentiality, making time management and resilience essential for success in this role.

What is the difference between Cook County Investigator vs Cook County Detective?

AspectCook County InvestigatorCook County Detective
Required CredentialsHigh school diploma or GED, law enforcement training, possibly some college courseworkSimilar requirements, often with additional law enforcement certifications
Work EnvironmentOffice settings, field investigations, interviewsFieldwork, crime scenes, surveillance
Employer & IndustryCook County government, law enforcement agenciesCook County law enforcement agencies, criminal investigations

Cook County Investigators and Detectives both work within law enforcement, often with overlapping qualifications. Investigators typically focus on gathering evidence and conducting interviews, while Detectives may handle more complex criminal investigations and crime scene analysis. Both roles are essential in the criminal justice process and share similar work environments and employer settings.

What are Cook County Investigators?

Cook County Investigators are professionals employed by Cook County government agencies, such as the State's Attorney's Office or the Sheriff's Office, to conduct investigations related to criminal, civil, or administrative matters. Their duties include gathering evidence, interviewing witnesses, preparing investigative reports, and sometimes testifying in court. They play a crucial role in supporting legal proceedings and ensuring that cases are thoroughly examined. Investigators often work closely with law enforcement, attorneys, and other government officials to ensure justice and maintain public safety.
What cities are hiring for Cook County Investigator jobs? Cities with the most Cook County Investigator job openings:
What are the most commonly searched types of Cook County Investigator jobs? The most popular types of Cook County Investigator jobs are:
What states have the most Cook County Investigator jobs? States with the most job openings for Cook County Investigator jobs include:
What job categories do people searching Cook County Investigator jobs look for? The top searched job categories for Cook County Investigator jobs are:
Cook County Investigator jobs near you
Infographic showing various Cook County Investigator job openings in the United States as of July 2026, with employment types broken down into 75% Full Time, and 25% Part Time. Highlights an 100% Physical job distribution, with an average salary of $65,243 per year, or $31.4 per hour.

Cook (County)

Ontario County (Department of Human Resources)

Canandaigua, NY • On-site

$18.49/hr

Full-time

Re-posted 14 days ago

Job description

TITLE: Cook (County)
DEPARTMENT: Office of Sheriff
RATE OF PAY: $18.49/HR
TYPE: Permanent, Full-Time Position
SCHEDULE: Work 4 days on, 2 days off.
HOURS: Alternating shifts of 4AM-12:30PM and 9AM-5:30PM.
NOTE: Appointment pending pre-placement drug screen and thorough background check.
MINIMUM QUALIFICATIONS: EITHER:
  1. Graduation from high school, or higher, or possession of a high school equivalency diploma and one (1) year of full-time paid experience, or its part-time equivalent, in food preparation; OR
  1. Graduation from a post-secondary vocational/technical institute with a certificate in culinary arts, food service/preparation or a closely related field; OR
  1. An equivalent combination of education and experience as defined in (1) and (2) above.

SPECIAL REQUIREMENTS FOR APPOINTMENT:
  1. Must possess a valid NYS driver's license at the time of appointment and maintain such license for the duration of employment.
  1. Criminal background investigation and drug screening.

DISTINGUISHING FEATURES OF THE CLASS:
Under general supervision an employee of this class performs routine cooking in the large production of meals in a correctional facility. Work is performed under the general direction of the Cook-Manager I following set departmental policies and procedures. While overall staff supervision and menu planning is carried out by a higher-level food service supervisor, oversite be exercised over inmate helpers. Does related work as required.
TYPICAL WORK ACTIVITIES: (Illustrative only)
Prepares and serves meals in the county jail and other meals as required;
Prepares and cooks meat, fish, poultry, soups, vegetables, cereals, desserts, salads and other food;
Bakes cakes, pies, rolls and a variety of other pastries;
Apportions food to food carts and trays;
Operates standard cooking equipment;
Supervises the proper storage of food;
Oversee inmate helpers and participates in maintaining the kitchen in a clean and sanitary condition;
Assigns inmate helpers to kitchen tasks in preparation of foods and cleaning of facilities;
Oversees and assists in the training of inmate helpers;
Accounts for all silverware, dishes, foodstuffs and supplies;
Keeps simple related records;
Does routine diet changes when in charge of kitchen;
Does quality assurance monitoring.
TO APPLY:
Visit https://ontario-portal.mycivilservice.com/
EOE

Apply