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U.S. Postal Inspection Service

The U.S. Postal Inspection Service supports and protects the U.S. Postal Service and its customers by enforcing the laws that defend the nation’s mail system from illegal or dangerous use.

Agency Details



Contact the Postal Inspection Service

Local Offices:

Find Your Local Postal Inspection Service Office

Main Address:

Criminal Investigations Service Center
Attn: Mail Fraud
433 W Harrison St., Room 3255
Chicago, IL 60699-3255

Toll Free:


Government branch:

Executive Department Sub-Office/Agency/Bureau

Popular Services from U.S. Postal Inspection Service

File a Complaint

Parent Agency

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