Track a letter

How to send mail to Senator Patrick Diegnan

To write to Senator Patrick Diegnan, the Democratic senator representing New Jersey's 18th senate district, address your letter to The Honorable Patrick Diegnan, New Jersey Senate, 908 Oak Tree Ave. Unit P, South Plainfield, NJ 07080. This is Diegnan'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.

New Jersey Senate — district office

The Honorable Patrick Diegnan
New Jersey Senate
908 Oak Tree Ave. Unit P
South Plainfield, NJ  07080

The address New Jersey's legislature publishes for Patrick Diegnan's constituent mail — reachable year-round, including when the legislature is out of session.

Verified September 2026njleg.state.nj.usopenstates.org

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 Diegnan — $5

$5 flat · postage included · no account needed

  • You write & pay
  • We print & envelope
  • USPS, next business day
  • Confirmation of Mailing emailed

Your name
Your return address

The Honorable Patrick DiegnanNew Jersey Senate908 Oak Tree Ave. Unit PSouth Plainfield, NJ 07080

Your letter, printed and mailed for you.

Key facts

  • Address mail to The Honorable Patrick Diegnan, New Jersey Senate, 908 Oak Tree Ave. Unit P, South Plainfield, NJ 07080. Letters you send need normal postage.
  • Patrick Diegnan is the Democratic senator representing New Jersey's 18th senate district.
  • Say who you are and where you live: include your full name and home address so Diegnan's office can confirm you're a constituent — that's who casework and replies are prioritized for.
  • This is Diegnan'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 Diegnan's official page and other contact options at https://www.njleg.state.nj.us/legislative-roster/387/senator-diegnan.
  • 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 Patrick Diegnan is your senator

    Patrick Diegnan represents District 18 in the New Jersey 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 Patrick Diegnan'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 Patrick Diegnan's mailing address?

The Honorable Patrick Diegnan, New Jersey Senate, 908 Oak Tree Ave. Unit P, South Plainfield, NJ 07080. This is Diegnan'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 Diegnan's standing, year-round address — the one New Jersey's legislature itself publishes for constituent mail.

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

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

Will Patrick Diegnan 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 New Jersey state legislators rules — what you can and can’t send, photos & more →

Related pages