Fax Bill Foster
Illinois · District 11 D — U.S. Representative
House office fax number
(202) 225-9420
The form below is prefilled with this number and a cover page addressed to “The Honorable Bill Foster” — you just attach your document. $0.50/page, no account.
How to address your fax to Bill Foster
By convention, correspondence to a U.S. representative is addressed to “The Honorable Bill Foster”, with the salutation “Dear Representative Foster”. Postal mail and courier deliveries reach the office at: The Honorable Bill Foster, U.S. House of Representatives, Washington, DC 20515.
What to include
- One issue per fax. Reference a specific bill number or regulation if you have one — offices sort mail by topic, and a single clear ask gets tallied accurately.
- Your name and mailing address. House offices prioritize constituents; an address in Illinois (ideally within District 11) signals your position should be counted as a Illinois voter.
- Keep it to one page. A short, specific message — what you want the representative to do, and why it matters to you — is read fully and logged.
Why fax still works for House offices
Security screening delays physical mail to Capitol Hill by weeks, and email forms bury individual messages. Fax arrives the same day with a timestamped transmission record, which is why offices — and the advocacy groups that track them — still publish fax numbers. Sending online, you get the delivery confirmation without a fax machine.
Frequently asked questions
What is Bill Foster's fax number?
Bill Foster's published House office fax number is (202) 225-9420. Send a fax to Representative Foster online for $0.50 per page — no account or fax machine required.
How do I address a fax to Bill Foster?
Address the cover page to “The Honorable Bill Foster” and open the message with “Dear Representative Foster”. Including your full name and mailing address helps the office verify you are a constituent of Illinois's District 11.
Does Bill Foster actually read faxes?
House offices log every fax that arrives and count positions on issues, even when replies come by mail or email. Faxes are timestamped, which makes them useful as a written record of where you stood and when.
Also represents Illinois
Sen. Tammy Duckworth (D) — fax ((202) 228-0618)
Also represents Illinois
Sen. Richard Durbin (D) — fax ((202) 228-0400)
Writing a cover page?
8 fax cover letter examples for every use case
Fax number data collected August 2026 and cross-checked against house.gov. See the full House fax directory.