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Post Offices in Annawan, IL
1 post office in Annawan, Henry County · Data as of 09/23/2026
Post offices on this page
Post offices in Annawan at a glance
- With a population of 865, Annawan has 1 post office (12 per 10,000 people).
- By count, it is 100th of 1,142 in Illinois.
- Nearby, Alpha (1), Andover (1) and Atkinson (1) also have post offices listed.
Post offices in Annawan
A to Z
Frequently asked questions
- How many post offices are in Annawan, IL?
- There is 1 post office in Annawan as of 09/23/2026.