How to search for sex offenders in South Dakota
Two ways to check the South Dakota sex offender registry: manually on the official state site, or programmatically across South Dakota and every other US registry with a single API call.
Option 1 — Search the official South Dakota registry
- Open the official South Dakota sex offender registry public search.
- Search by last name (required), first name, or by city / ZIP / address.
- Open a result to see offenses, registration status, and known addresses.
- Note the record URL — it’s the authoritative source for that person.
The public South Dakota site is best for a one-off, manual lookup. It won’t scale to bulk screening or cover other states in one search.
Option 2 — Search South Dakota with the Offendersearch API
One authenticated request queries the South Dakota registry plus the national NSOPW source, de-duplicates people across sources, scores each match, and returns provenance and freshness on every record.
POST /v1/search
{
"query": { "lastName": "Doe", "state": "SD" },
"jurisdictions": ["SD", "NSOPW"],
"locationScoped": true,
"freshness": "standard"
}This is a live demo of the API shape returning sample data. Real, scored results across every registry require a free account with billing enabled.
South Dakota search FAQ
Is searching the South Dakota sex offender registry free?
Searching the official South Dakota public registry directly is free. The Offendersearch API is for teams that need programmatic, scored, multi-source results across South Dakota and every other jurisdiction in one call.
Can I search sex offenders near an address in South Dakota?
Yes. Provide a city, ZIP, or latitude/longitude with a radius and the API returns registrants near that location in South Dakota, each scored and tagged with its source.
How current is South Dakota registry data?
Every record returns a lastCheckedAt timestamp. Choose the Standard, Weekly, or Daily freshness tier depending on how recently South Dakota data must have been re-verified.