There are hundreds of sites on the Internet with information about where to dance. Below is a SHORT list. Be aware that the listings are not always up-to-date and you should use any contact information prior to attending any group listed.
The sites below are fairly broad in scope. There tend to be international folk dance clubs and classes in the major city(ies) of most states. Most of those clubs/classes have a website, which is in blue.
If you use a good search engine and type in “international folk dance” and the state or city, you should get results that will connect you to dancing in that area.
New England: Folk Arts Center of New England
Maine, New Brunswick: Folk Dance Brunswick
Massachusetts, Bridgewater Bridgewater Community Dancers
Washington, DC area: Larry Wiener
New York, Brooklyn Heights: Brooklyn Heights Folk Dancers
New York, Central Park: Walter Fischer 917-873-2026
New Jersey, central: Ginny Brandmaier 201-768-4268
New Jersey, Smithville (Irish): Mist of Ireland
Virginia, Richmond: Scottish Country Dancers of Richmond
Pennsylvania, Philadelphia and surrounding areas: Phillydance.com
Pennsylvania, Delaware Valley: Folk Dance Council of Delaware Valley
Louisiana, New Orleans: Crescent City International Dancer; New Orleans Israeli Dancers
Florida and Georgia: Florida Folk Dance Council
Florida, Sarasota: International Folk Dance Sarasota
Florida, Gainesville: Gainesville International Folk Dancers
Florida, Melbourne (English, Scottish, contra): Dance Web Florida
Ohio, Columbus and Central Ohio: Recreational Folk Dancers of Columbus
Iowa, Des Moines (contra dance): Ames-Des Moines Contra Dance Friends
Arkansas: Fayetteville International Folk Dancers. www.fifd.org email@example.com, 479-283-9947.
Missouri, St. Louis: International Folk Dance Association of University City
Illinois, Chicago and the Midwest generally: Ethnic Dance Chicago and this PDF listing
Wisconsin, Madison: Joanna Thompson — email or 608-238-9951
Texas: Texas International Folk Dancers
New Mexico, Albuquerque (central/northern): Albuquerque International Folk Dance Foundation
New Mexico, Las Cruces (southern): Mesilla Valley International Folk Dancers
Montana: International Folk Dancing in Montana
Michigan: Ann Arbor Community for Traditional Music and Dance and Ann Arbor Folk Dancers
Minnesota: Tapestry Folkdance Center
Utah: Salt Lake City International Folk Dancers
Northwestern United States: Northwest Folk Dancer, Inc.
Washington, Richland: email Gretchen Makinson or Facebook
Oregon (Portland area): Heidi Vorst Email
California, Northern: Folk Dance Federation of California (North)
California, Southern: Folk Dance Federation of California (South)
Arizona, Phoenix: Contact Alice Chong 623-428-9666
Hawaii: Mandala International Folk Dancers, Hawaii Israeli Recreational Dance, International Folk Dancers of Hawaii, and Contra Dance in Hawaii
Surrey, British Columbia, Canada: Surrey International Folk Dancing, surreyfolkdance.org, or email: firstname.lastname@example.org
A good site for folkdance in Germany is http://www.folkclubfrankfurt.de Not only does the site have a list of all the locations in the Frankfurt area, it also provides many links concerning events in the rest of Germany and the main links for France!
If you want a site added or edited or deleted, please contact the website manager.