In the period preceding the Municipal Reform of 1970, Denmark was divided into around 170 hundreds (Danish: herred, plural: herreder). In the timeframe 1793 through 1970, each parish was functioning as a municipality within their respective hundreds. The hundreds were in turn part of a county. This was changed in 1970, when the parishes were merged into larger municipalities sometimes crossing hundred borders, and the hundreds fell out of administrative use.
Today, hundreds are used mostly for purposes of genealogy research.