# South Dakota Secretary of State — Authentications

South Dakota Secretary of State — Authentications is an apostille authority in Pierre, South Dakota, United States.

The South Dakota Secretary of State issues apostilles for South Dakota public documents for use abroad. See the official page for what to send and the current fee.

## Details

- Address: Pierre, South Dakota, United States
- Website: [sdsos.gov/general-services/apostilles-authentications.aspx](<https://sdsos.gov/general-services/apostilles-authentications.aspx>)
- What this office covers: Apostilles for South Dakota public documents
- Source note: South Dakota Secretary of State apostille page. Official page, checked 2026-10-07.

## Questions

### Where is South Dakota Secretary of State — Authentications?

South Dakota Secretary of State — Authentications is at Pierre, South Dakota, United States.

### How do I contact South Dakota Secretary of State — Authentications?

To contact South Dakota Secretary of State — Authentications, visit https://sdsos.gov/general-services/apostilles-authentications.aspx.

### Should I post my original document to South Dakota Secretary of State — Authentications?

Read the official page linked in the listing first. Many offices take documents by post, some see walk-ins, and a few take requests online. Never send an original you cannot replace until the office confirms what it needs.

## Source

From [HCCH Apostille Section: status table and authority records](https://www.hcch.net/en/instruments/conventions/status-table/?cid=41), license © HCCH 1951-2026. Plain facts restated (membership, office names and contact details); no open licence stated., checked 2026-10-07.

Last updated October 7, 2026.

## Links

- This apostille authority on the [web page](<https://apostilles.fyi/us/south-dakota/pierre/south-dakota-secretary-of-state-authentications>)
- [State and regional apostille offices in Pierre](<https://apostilles.fyi/us/south-dakota/pierre/category/regional-apostille-offices.md>)
- [Apostille offices in Pierre](<https://apostilles.fyi/us/south-dakota/pierre/category/apostille-offices.md>)
- [More apostille authorities in Pierre](<https://apostilles.fyi/us/south-dakota/pierre.md>)

> **Not legal advice.** Apostille Finder lists the government offices that issue apostilles and what their official pages state. It is not legal advice, and rules, hours and fees change. Confirm every detail on the official page linked in each listing before you send a document. The source note on each record shows when we last checked it. To report a mistake, write to hello@apostilles.fyi.