Illinois address format
Use the recipient, street, city, two-letter state code IL, and five-digit ZIP Code in that order. Each result keeps the street, city, state, and ZIP in one public-institution address record.
Review the complete US address format, ZIP+4, and apartment-unit guide
City, ZIP Code, and area code examples
Illinois-specific test cases
- Chicago 60602 and Springfield 62701 help test that a capital and a major city are different concepts.
- Verify that the IL code remains unchanged in CSV, JSON, and form submissions.
The current data snapshot covers 4 public non-residential locations, ZIP Codes including 62701, 60602, 61602, 61104, and area codes 217, 312, 309, 815. Data reviewed August 13, 2026.
Appropriate use and limits
Street, city, state, and ZIP Code come from checkable public non-residential locations; names, emails, and test phone numbers are synthetic. Results do not represent a real resident and are not USPS delivery-point verified. Do not use them for shipping, payments, identity checks, credit, or bypassing platform rules.
State and local tax rules may vary by locality and transaction type.