What is the difference between a county and a national criminal background check?

5 min read · Updated August 2026

Short answer

A national criminal search scans an aggregated database of records from many sources and is fast but incomplete. A county criminal search pulls directly from the court where a case was filed and is the authoritative source — slower, more accurate, and required to confirm any database hit.

National databaseCounty court search
SourceAggregated third-party recordsThe court of record itself
SpeedMinutes1–3 business days
CoverageBroad but with real gapsComplete for that county
FreshnessCan lag by weeks or monthsCurrent as of the search
Reportable aloneNo — hits must be confirmedYes

How they work together

The national search casts a wide net and surfaces jurisdictions the candidate's address history would not have revealed. The county search then confirms or clears each pointer at the source. Running both is the standard for a defensible program.

  • Address history drives which counties are searched by default.
  • Database hits add counties outside that history.
  • Only source-confirmed records are reported to the employer.

Frequently asked

Is there a true nationwide criminal database?

No. The FBI database is not available for most private employment screening, so commercial national searches are aggregations with gaps.

Keep reading

Screening built on verified identity

Every Ethur check includes ID and biometric verification, with source-connected employment records.