How to send mail to Representative Jake Auchincloss

To write to Representative Jake Auchincloss, the Democratic U.S. representative for Massachusetts's 4th congressional district, address your letter to The Honorable Jake Auchincloss, U.S. House of Representatives, 1524 Longworth House Office Building, Washington, DC 20515-2104. Any American can write to any member of Congress, but your own representative count you as a constituent and act on your casework. Note that mail to Capitol Hill is screened off-site and can take a few weeks — say who you are, keep it to one issue, and make a clear ask.

Mailing address

Verified July 2026

U.S. House of Representatives — Washington, DC office

The Honorable Jake Auchincloss
U.S. House of Representatives
1524 Longworth House Office Building
Washington, DC  20515-2104

Reaches Jake Auchincloss's Washington office. Best for positions on bills and votes; for casework, the district office is often faster.

Send a letter to this address →

Sources

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

Write it now. We print & mail it for $5.

Type your letter in the browser. We print it, stamp it, and hand it to USPS — usually same business day. No printer, no stamps, no post office.

Send your letter to Auchincloss — $5

$5 flat · all-in, postage included

Key facts

  • Address mail to The Honorable Jake Auchincloss, U.S. House of Representatives, 1524 Longworth House Office Building, Washington, DC 20515-2104. Unlike outgoing franked mail, letters you send to Congress need normal postage.
  • Jake Auchincloss is the Democratic U.S. representative for Massachusetts's 4th congressional district.
  • Identify yourself as a constituent: include your full name, home address, and ZIP so Auchincloss's staff can confirm you live in the district. Constituent mail is prioritized and tallied.
  • Mail to Capitol Hill is screened off-site for security and can take up to several weeks to arrive. For time-sensitive casework, the member’s in-state district office is usually faster.
  • One clear ask per letter — support or oppose a specific bill, request a meeting, or open a casework file. A personal letter carries more weight than a form email or petition signature.
  • Find Auchincloss's district office and contact form at https://auchincloss.house.gov — but a printed letter is harder to overlook on issues you care about.
  • 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 this is your representative

    Jake Auchincloss represents Massachusetts's 4th district. Representatives take casework for people who live in their district — if you're unsure of yours, look it up by ZIP at house.gov.

  2. 2

    Say who you are and where you live

    Open with your full name, street address, and ZIP code. Offices sort mail by whether the writer is a constituent, and your address is how they confirm it. State your issue in the first line.

  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 open a casework file. A short, specific letter gets a substantive reply; a multi-issue essay gets a form response.

  4. 4

    Send it without printing anything

    Write your letter in PostPal with Jake Auchincloss'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 Representative Jake Auchincloss's mailing address?

The Honorable Jake Auchincloss, U.S. House of Representatives, 1524 Longworth House Office Building, Washington, DC 20515-2104. This is the Washington office; letters need normal postage.

How long does mail to Congress take to arrive?

Mail to Capitol Hill is routed through an off-site facility and screened for security, which can add up to several weeks. If your matter is urgent, the member’s in-state district office generally receives mail faster.

Do I have to be a constituent to write to Auchincloss?

Representatives prioritize people who live in their district, and casework is normally limited to constituents. You can still write about Auchincloss's position on national legislation from anywhere.

Will Jake Auchincloss actually read my letter?

Constituent mail is logged and answered by Auchincloss's staff, and issues raised repeatedly are flagged to the member. Include your return address (PostPal prints yours automatically) so a reply has somewhere to go.

Related pages