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OPM FedScope June 2026 Federal civilian workforce

Federal Employment in Illinois

Illinois ranks #10 of 51 states and territories by federal civilian headcount in OPM FedScope June 2026. Illinois is a large federal duty-station market: 27,107 civilians (1.4% of the disclosed workforce) at $119,378 average pay. Pay lands in the upper third of states (Near federal average). Average length of service (12.8 yrs) is among the longer state books. Source: OPM FedScope June 2026.

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Federal Employees

27,107

-0.3% from prior period

Average Salary

$119,378

Near federal average

+0.1%

Avg Length of Service

12.8 yrs

Average tenure

Agencies Present

52

Federal Agencies in Illinois

52 agencies disclose staff here, a dense agency book for Illinois; DEPARTMENT OF VETERANS AFFAIRS alone accounts for 14,418 civilians.

1. DEPARTMENT OF VETERANS AF…14,4182. SOCIAL SECURITY ADMINISTR…2,0763. DEPARTMENT OF TRANSPORTAT…1,8044. DEPARTMENT OF AGRICULTURE1,2365. DEPARTMENT OF JUSTICE9066. ENVIRONMENTAL PROTECTION …8507. DEPARTMENT OF HOMELAND SE…7328. DEPARTMENT OF TREASURY6589. DEPARTMENT OF COMMERCE61510. DEPARTMENT OF HEALTH AND…568
Largest federal employers in Illinois (by civilian employees)

The 10 largest federal agencies in Illinois by civilian headcount.

Source: OPM FedScope

# Agency Employees Avg Salary
1 DEPARTMENT OF VETERANS AFFAIRS 14,418 $116,252
2 SOCIAL SECURITY ADMINISTRATION 2,076 $101,338
3 DEPARTMENT OF TRANSPORTATION 1,804 $152,134
4 DEPARTMENT OF AGRICULTURE 1,236 $93,234
5 DEPARTMENT OF JUSTICE 906 $102,796
6 ENVIRONMENTAL PROTECTION AGENCY 850 $130,746
7 DEPARTMENT OF HOMELAND SECURITY 732 $115,106
8 DEPARTMENT OF TREASURY 658 $122,709
9 DEPARTMENT OF COMMERCE 615 $97,762
10 DEPARTMENT OF HEALTH AND HUMAN SERVICES 568 $135,821
11 DEPARTMENT OF LABOR 535 $129,429
12 RAILROAD RETIREMENT BOARD 426 $114,458
13 GENERAL SERVICES ADMINISTRATION 350 $137,217
14 DEPARTMENT OF INTERIOR 255 $91,550
15 DEPARTMENT OF HOUSING AND URBAN DEVELOPM 242 $142,592
16 FEDERAL DEPOSIT INSURANCE CORPORATION 236 $180,590
17 SECURITIES AND EXCHANGE COMMISSION 224 $239,175
18 DEPARTMENT OF ENERGY 148 $149,457
19 NUCLEAR REGULATORY COMMISSION 111 $146,876
20 NAT ARCHIVES AND RECORDS ADMINISTRATION 107 $69,250
21 DEPARTMENT OF STATE 82 $103,848
22 COMMODITY FUTURES TRADING COMMISSION 79 $250,942
23 DEPARTMENT OF EDUCATION 76 $142,447
24 SMALL BUSINESS ADMINISTRATION 75 $95,727
25 EQUAL EMPLOYMENT OPPORTUNITY COMMISSION 67 $131,754
26 SELECTIVE SERVICE SYSTEM 41 $90,434
27 NATIONAL LABOR RELATIONS BOARD 40 $145,578
28 FEDERAL RESERVE SYSTEM 31 $160,357
29 NATIONAL CREDIT UNION ADMINISTRATION 22 n/a
30 FEDERAL TRADE COMMISSION 16 $185,672
31 NAT AERONAUTICS AND SPACE ADMINISTRATION 11 $142,317
32 MERIT SYSTEMS PROTECTION BOARD 10 $171,854
33 OFFICE OF PERSONNEL MANAGEMENT 9 $151,978
34 CORP FOR NATIONAL AND COMMUNITY SERVICE 7 $112,542
35 GOVERNMENT PUBLISHING OFFICE 7 $135,729
36 FED MEDIATION AND CONCILIATION SERVICE 6 $155,881
37 FEDERAL COMMUNICATIONS COMMISSION 4 $166,025
38 COMMISSION ON CIVIL RIGHTS 3 $155,633
39 PEACE CORPS 3 $157,341
40 NATIONAL MEDIATION BOARD 3 $139,971
41 NATIONAL TRANSPORTATION SAFETY BOARD 3 $157,289
42 FARM CREDIT ADMINISTRATION 2 n/a
43 U.S.AGENCY FOR GLOBAL MEDIA 2 $139,081
44 FEDERAL HOUSING FINANCE AGENCY 2 $159,830
45 DFC 2 $178,277
46 SMITHSONIAN INSTITUTION 1 $130,884
47 U.S. AGENCY FOR INTERNATIONAL DEV 1 $197,200
48 JUDICIAL BRANCH 1 $162,740
49 EXPORT-IMPORT BANK OF THE UNITED STATES 1 $209,575
50 NATIONAL SCIENCE FOUNDATION 1 $209,600
51 NATIONAL COUNCIL ON DISABILITY 1 n/a
52 OFFICE OF MANAGEMENT AND BUDGET 1 $165,340

Where Illinois sits nationally

With 27,107 civilians, Illinois anchors the upper headcount band among 51 states and territories (inventory signal, not a quality ranking).

Illinois vs all states by federal civilian headcount

Where this state's disclosed OPM FedScope employee count sits among every tracked state and territory

27,107 10th of 51 higher than 41 of 51 states

States and territories, banded by federal civilian headcount

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source OPM FedScope Employment Cubes · June 2026

Similar States by Federal Employment

Other large duty-station books nearest Illinois's 27,107-employee scale.

North Carolina

26,746 employees $112,595 avg

Ohio

25,990 employees $113,832 avg

Missouri

25,174 employees $98,611 avg

Colorado

24,385 employees $120,244 avg

Arizona

23,479 employees $104,382 avg

Washington

23,282 employees $116,221 avg

High-pay peers of Illinois

Cross-state peers on OPM FedScope average pay and length of service, separate from the headcount neighbourhood above.

Similar average salary

Nearest state-wide average salaries ($119,378 here).

Rhode Island
$119,256 avg · 2,973 employees
Colorado
$120,244 avg · 24,385 employees
Vermont
$118,036 avg · 2,454 employees
Massachusetts
$120,785 avg · 16,188 employees
New Hampshire
$121,875 avg · 3,670 employees
Delaware
$116,878 avg · 2,221 employees

Similar average tenure

Nearest state-wide average length of service (12.8 years here).

New York
12.8 yrs avg tenure · 35,791 employees
Oklahoma
12.8 yrs avg tenure · 14,632 employees
West Virginia
12.8 yrs avg tenure · 13,160 employees
Louisiana
12.9 yrs avg tenure · 11,836 employees
Massachusetts
12.9 yrs avg tenure · 16,188 employees
Texas
12.9 yrs avg tenure · 73,050 employees

Data Source: U.S. Office of Personnel Management (OPM) FedScope Employment Cubes, June 2026. Federal civilian non-seasonal full-time and part-time employees. Data does not include military personnel, postal workers, or intelligence agency staff. Last updated: 2026-08-11.

Data sourced from OPM FedScope Employment Cubes and Federal Workforce Data (FWD). See our methodology for details, or report a data error on this page. Retrieved and formatted by PlainGovJobs from OPM FedScope state-level employment records as of June 2026.

OPM FedScope and Federal Workforce Data figures are federal civilian headcounts, average salaries, and length-of-service statistics - not job-quality scores, hiring advice, or a live vacancy listing. A larger or higher-paid agency is not a better employer.

Data currency: Employment stock from OPM Federal Workforce Data June 2026 (prior-period deltas vs May 2026); monthly hiring/separations from FWD Dynamics June 2024–June 2026 (filled civilian headcount and flows, not live USAJOBS vacancy listings). State pages sum only duty stations with a disclosed US state/DC code; 898,675 employees have redacted geography in the release and appear in the national total only. Database compiled 2026-08-11. See our methodology § populations for the three windows. Spot a figure that looks wrong? Report a correction.