Yes, especially in competitive hiring markets. While resumes and assessments are important, cover letters help hiring managers evaluate reliability, professionalism, schedule flexibility, and operational readiness.

The strongest USPS cover letters focus on reliability, attendance, physical stamina, safe driving, customer service, and the ability to handle fast-paced delivery work consistently.

Yes. Many successful USPS City Carrier Assistants come from retail, warehouse, food service, manufacturing, and customer service backgrounds. Transferable skills and work ethic matter heavily.

A USPS City Carrier Assistant cover letter should usually stay between 250 and 400 words. Hiring managers prefer concise, highly relevant applications.

Absolutely. Schedule flexibility is one of the strongest positive hiring signals for USPS carrier positions because overtime, weekend shifts, and holiday schedules are common.