Bornholm County

The county was established in 1662, replacing the former Hammershus Len.

It was the only county unchanged by the administrative reforms of 1793 and 1970 consequently occupying the same territory from 1662 until 2002.

The 6 market city municipalities were supervised by the county, differing from the situation in the rest of Denmark where the market city municipalities were supervised by the Interior ministry.

Decided in a referendum on the island May 29, 2001, as of January 1, 2003, the county and the island's five municipalities merged forming the new Bornholm Regional Municipality (Bornholms Regionskommune).

It is supervised by the State Administration of Greater Copenhagen (Statsforvaltningen Hovedstaden).