List of place names of Welsh origin in the United States

This is a list of places in the United States named for places in Wales.

Bangor
Places named after Bangor, Gwynedd:
 * Bangor, Alabama
 * Bangor, Maine
 * Bangor, New York
 * Bangorville, Ohio
 * Bangor, Pennsylvania
 * Bangor Base, Washington
 * Bangor, Wisconsin

Cambria
Places named after Cambria:
 * Cambria Township, Blue Earth County, Minnesota
 * Cambria Township, Cambria County, Pennsylvania
 * Cambria, Illinois
 * Cambria, Indiana
 * Cambria, Iowa
 * Cambria, New York
 * Cambria, Pennsylvania
 * Cambria, Wisconsin
 * Northern Cambria, Pennsylvania

Cardiff
Places named after Cardiff:
 * Cardiff, Alabama
 * Cardiff, Illinois
 * Cardiff, Maryland
 * Cardiff, New York
 * Cardiff-by-the-Sea, Encinitas, California

Monmouth
Places named after Monmouth:
 * Monmouth, California
 * Monmouth, Illinois
 * Monmouth, Indiana
 * Monmouth, Iowa
 * Monmouth, Kansas
 * Monmouth, Maine
 * Monmouth County, New Jersey
 * Monmouth Junction, New Jersey
 * Monmouth, Oregon

Swansea
Places named after Swansea:
 * Swansea, Arizona
 * Swansea, California
 * Swansea, Illinois
 * Swansea, Massachusetts
 * Swansea, Nevada
 * Swansea, South Carolina
 * Swanzey, New Hampshire
 * East Swanzey, New Hampshire
 * West Swanzey, New Hampshire
 * Swanzy, Michigan

Wales
Places named Wales:
 * North Wales, Pennsylvania
 * Wales, Minnesota
 * Wales, Utah

Other

 * Bala, Kansas
 * Bala Cynwyd, Pennsylvania (named for two places: Bala, Gwynedd and Cynwyd, Denbighshire)
 * Berwyn, Pennsylvania
 * Brecknock Township, Lancaster County, Pennsylvania
 * Bryn Mawr, Pennsylvania
 * Caernarvon Township, Lancaster County, Pennsylvania
 * Crum Lynne, Pennsylvania
 * Cumru, Pennsylvania
 * Haverford, Pennsylvania
 * Hawarden, Iowa
 * Llanerch, Pennsylvania
 * Lower Gwynedd Township, Montgomery County, Pennsylvania
 * Lower Merion Township, Montgomery County, Pennsylvania
 * Merion, Pennsylvania
 * Narberth, Pennsylvania
 * North Pembroke, Massachusetts
 * Pembrey, Delaware
 * Pembroke, Massachusetts
 * Penllyn, Pennsylvania
 * Radnor, Pennsylvania
 * St Asaph (Church), Pennsylvania
 * St Davids, Pennsylvania
 * Tredyffrin Township, Pennsylvania
 * Upper Gwynedd Township, Pennsylvania
 * Upper Merion Township, Montgomery County, Pennsylvania
 * Uwchlan Township, Pennsylvania