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How to send mail to Senator Mark Walker

To write to Senator Mark Walker, the Democratic senator representing Illinois's 27th senate district, address your letter to The Honorable Mark Walker, Illinois Senate, 171 W. Wing St. Suite 202, Arlington Heights, IL 60005. This is Walker's standing constituent-mail address — reachable year-round, unlike a capitol-session address. Say who you are, keep it to one issue, and make a clear ask.

Illinois Senate — district office

The Honorable Mark Walker
Illinois Senate
171 W. Wing St. Suite 202
Arlington Heights, IL  60005

The address Illinois's legislature publishes for Mark Walker's constituent mail — reachable year-round, including when the legislature is out of session.

Verified September 2026ilga.govopenstates.org

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Your return address

The Honorable Mark WalkerIllinois Senate171 W. Wing St. Suite 202Arlington Heights, IL 60005

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Key facts

  • Address mail to The Honorable Mark Walker, Illinois Senate, 171 W. Wing St. Suite 202, Arlington Heights, IL 60005. Letters you send need normal postage.
  • Mark Walker is the Democratic senator representing Illinois's 27th senate district.
  • Say who you are and where you live: include your full name and home address so Walker's office can confirm you're a constituent — that's who casework and replies are prioritized for.
  • This is Walker's standing constituent-mail address, not the state capitol — it's reachable year-round, including when the legislature is out of session, so it's the more reliable address for mail.
  • One clear ask per letter — support or oppose a specific bill, request help with a state agency, or ask for a meeting. A short, specific letter gets a real reply; a multi-issue letter gets a form response.
  • Find Walker's official page and other contact options at https://ilga.gov/house/Rep.asp?GA=101&MemberID=2743.
  • PostPal prints your letter and hands it to USPS the next business day for $5 — no printer, envelope, or stamps.

How to send your letter

  1. 1

    Confirm Mark Walker is your senator

    Mark Walker represents District 27 in the Illinois Senate. If you're not sure which district you live in, look it up by address on your state legislature's website before writing.

  2. 2

    Say who you are and where you live

    Open with your full name, street address, and ZIP code. Legislative offices sort mail by whether the writer is a constituent — your address is how they confirm it.

  3. 3

    Keep it to one issue with a clear ask

    One page, one topic, one specific request — support or oppose a named bill, take a position, or ask for help with a state agency. Specific beats broad.

  4. 4

    Send it without printing anything

    Write your letter in PostPal with Mark Walker's address prefilled and we print, envelope, and mail it via USPS the next business day for $5 — with a dated confirmation email.

Common questions

What is Senator Mark Walker's mailing address?

The Honorable Mark Walker, Illinois Senate, 171 W. Wing St. Suite 202, Arlington Heights, IL 60005. This is Walker's district office; letters need normal postage.

Why a district office and not the state capitol?

Most state legislatures are only in session part of the year, and capitol-office assignments can change every session. The district office is Walker's standing, year-round address — the one Illinois's legislature itself publishes for constituent mail.

Do I have to live in Walker's district to write?

Anyone can write, but Walker's office prioritizes constituents for casework and replies. If you live in the district, say so and include your address.

Will Mark Walker actually read my letter?

Constituent mail is logged by staff and tallied on issues that come up repeatedly. Include your return address (PostPal prints yours automatically) so a reply has somewhere to go.

Sources

Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.

See the full Illinois state legislators rules — what you can and can’t send, photos & more →

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