St. Clair County, IL jobs, unemployment and layoffs

St. Clair County’s unemployment rate is 3.9%. No WARN layoff notices here in the last 12 months. 147 open professional jobs are in its cities.

St. Clair County economy

3.9%
unemployment, Aug 2026
4.9% the month before
119,175
in the labor force
Source: BLS Local Area Unemployment Statistics
254,777
people in St. Clair County
Source: U.S. Census Bureau
$70,178
median household income
Source: Census ACS
39%
of workers in white-collar occupations
Management, business, financial and professional; Census ACS

St. Clair County layoffs

No WARN layoff notices naming St. Clair County in the last 12 months are on file. WARN covers employers with 100 or more workers, so smaller layoffs are not in it.

All layoff notices in the state

Employers hiring most in St. Clair County

Employers with the most open professional roles in this county’s cities. The county is taken from each job’s city, so roles with no city are not counted.

CACI International17 open roles
Trace Systems15 open roles
Air Mobility Command12 open roles
Air Force Elements, U.S. Transportation Command11 open roles
Caci, LLC - Commercial10 open roles
Army Transportation8 open roles
Air National Guard Units6 open roles
Caci International4 open roles
Caci, Inc. - Federal4 open roles
Peraton4 open roles

Colleges in St. Clair County

Colleges in St. Clair County
College	City	Type	Students
McKendree University	Lebanon	Private nonprofit 4-year	1,000–4,999

Workforce development and job centers

The public workforce board and American Job Centers serving St. Clair County. They offer free help with job search, training and filing for benefits.

Mid America Workforce Investment Board
Clinton, Monroe, Randolph, St. Clair, Washington

Illinois workNet Center - American Job Center - Belleville
Belleville · Comprehensive · 618-277-3090
Monday 08:30-17:00, Tuesday 08:30-17:00, Wednesday 08:30-17:00, Thursday 08:30-17:00, Friday 08:30-17:00,

Cities in St. Clair County

Other Illinois counties

All of Illinois

Laid off or looking for work in St. Clair County?

See what to do first and the jobs open near you.

See your options after a layoff

Sources: Census Bureau and BLS (county unemployment is not seasonally adjusted); WARN notices from Illinois’s published record; job counts from our live job board; IPEDS for colleges; CareerOneStop for workforce boards and job centers.