Track a letter

Mailing address for Sidney High School

To reach Sidney High School, address your envelope to Sidney High School, 200 3rd Ave SE, Sidney, MT 59270. Sidney High School is a public school district in Sidney, Montana, serving grade 09 through grade 12 across 1 school.

District office — Sidney High School

Sidney High School
200 3rd Ave SE
Sidney, MT  59270

Add the specific recipient above the district name — e.g. "Attn: Registrar" for a records or transcript request, or "Attn: Superintendent" / "Attn: Board of Education" for district correspondence.

Verified September 2026nces.ed.govmt01001320.schoolwires.net

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.

Mail a letter to the district — $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

Sidney High School200 3rd Ave SESidney, MT 59270

Your letter, printed and mailed for you.

Key facts

  • Send mail to Sidney High School, 200 3rd Ave SE, Sidney, MT 59270 — the district's central office.
  • Sidney High School serves grade 09 through grade 12 across 1 school (NCES LEA ID 3024230).
  • District office phone: (406)433-4080.
  • Official district website: http://mt01001320.schoolwires.net.
  • A written request for a student's education records under FERPA should include the student's full name, date of birth, and the years they attended, plus your signature and a callback number.
  • PostPal prints and mails your letter for you the next business day for $5 — with your return address printed, no printer, envelope, or stamp needed.

How to send your letter

  1. 1

    Confirm who should receive it

    Records and transcript requests usually go to the registrar or records office; general correspondence goes to the superintendent or board. Check http://mt01001320.schoolwires.net if you're not sure of the right department.

  2. 2

    Address it correctly

    Write the recipient or department first, then Sidney High School, 200 3rd Ave SE, Sidney, MT 59270.

  3. 3

    Include what they need

    For a records request: the student's full name, date of birth, years attended, and your signature — schools generally require written authorization under FERPA before releasing education records. For general correspondence, state your request or concern clearly and include a way to reach you back.

  4. 4

    Send it without a printer

    Write or upload your letter in PostPal with this address prefilled, and we print, envelope, and mail it via USPS the next business day for $5.

Common questions

What is the mailing address for Sidney High School?

Sidney High School, 200 3rd Ave SE, Sidney, MT 59270 — the district's central administrative office.

How do I request a student's records or transcript from Sidney High School by mail?

Write to the district's registrar or records office at the address above. Include the student's full name, date of birth, years attended, and your signature — schools generally require written authorization under FERPA before releasing education records.

Where do I mail a letter to the superintendent or school board of Sidney High School?

Address it "Attn: Superintendent" or "Attn: Board of Education", then Sidney High School, 200 3rd Ave SE, Sidney, MT 59270.

How many schools does Sidney High School operate?

1 as of the most recent NCES Common Core of Data directory, serving grade 09 through grade 12.

Sources

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

See the full Montana school districts rules — what you can and can’t send, photos & more →

Related pages