The parties did not release terms.
Gannett says the site has more unique users than the mass of other sites in the field.
The site focuses on schedules, results and other information for particular schools. For Gannett, with its struggling newspaper operations, Internet ventures with local appeal are an expected growth engine. The announcement of the acquisition came on the same day that Gannett reported disappointing third-quarter results.
"HighSchoolSports.net's network of thousands of high school sites--in communities of all sizes--is an unmatched experience for users, as well as a national and hyper-local platform for advertisers," said Jack Williams, president of Gannett Digital.
"When partnered with Gannett's local newspapers, television stations and Web sites, HighSchoolSports.net will offer national and local advertisers an exciting, best-of-class vehicle to reach teens and parents."