State Government in Oak Brook, IL - DuPage County - Hubbiz May 2026

State of Illinois - State Police - Cook County - District Chicago - Toll Roads Only - I88 I294 and I355

State Government

2001 Midwest Rd

Oak Brook - IL

(630) 571-2616
Social Security Administration - General Information and Services - Automated Services

Social Security Counselors & Representatives

2301 W 22nd St Ste 201

Oak Brook - IL

(800) 772-1213
Social Security Administration - National Tty Only

Social Security Counselors & Representatives

2301 W 22nd St Ste 201

Oak Brook - IL

(800) 325-0778
State of Illinois - Secretary of State - Inspector Generals Office

State Government

2001 Midwest Rd

Oak Brook - IL

(630) 424-2564
State of Illinois - Waste Management and Research Center

State Government

1010 Jorie Blvd Ste 200

Oak Brook - IL

(630) 472-5016