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DeLand, Florida
DeLand is a city in Volusia County, Florida, and its county seat. Founded in 1876 by Henry Addison DeLand, it is home to Stetson University, Florida's first private university.
Delray Beach, Florida
Delray Beach is a coastal city in Palm Beach County, Florida, formerly named Linton, incorporated 1911/1923 and merged 1927; about 69,800 residents, three-time All-America City, two-mile public beach, Atlantic Avenue downtown.
Delta, British Columbia
Delta is a city in the Metro Vancouver region of British Columbia, on the south side of the Fraser River's mouth, with three communities: Ladner, Tsawwassen, and North Delta.
Denton, Texas
Denton, Texas: county seat of Denton County in north-central Texas, a university town home to UNT and Texas Woman's University. 139,869 residents in 2020, 169,431 estimated 2025; known for its courthouse square and music scene.
Denver
Denver, the capital and largest city of Colorado, the Mile High City, founded November 22, 1858 as a gold-rush town at Cherry Creek and the South Platte River and named for Kansas territorial governor James W. Denver.
Des Moines, Iowa
Des Moines, Iowa, the state capital and most populous city (212,086 est. 2025), incorporated 1851-1857, capital since 1857, a global insurance center third after London and Hartford, with a council-manager government and recurring flood history.
Des Plaines, Illinois
Des Plaines, Illinois: a Cook County city 17 miles northwest of Chicago on the Des Plaines River; 60,675 residents (2020 census), median household income $97,875, home to Rivers Casino and near O'Hare airport.
Destin, Florida
Destin, Florida: resort city in Okaloosa County on the Emerald Coast, founded by fisherman Leonard Destin, incorporated 1984, about 14,000 residents, home to Florida's largest charter fishing fleet.
Detroit
Detroit, the largest city in Michigan, was founded by the French in 1701 and grew into the heart of the American automotive industry as the Motor City.
Diamond Bar, California
Diamond Bar is a city in eastern Los Angeles County, California, incorporated in 1989 and named for the Diamond Bar cattle ranch brand registered in 1918. Population about 55,000; master-planned by Transamerica from 1956.
Dodge City, Kansas
Dodge City, Kansas: Ford County city founded 1872 as a Santa Fe Railroad buffalo-trade town, then the "Queen of the Cowtowns" (1875-1886); now a meatpacking and immigrant hub of about 27,700 people.
Dollard-des-Ormeaux
Dollard-des-Ormeaux (DDO) is a city of 48,200 in western Montreal Island, Quebec, founded 1924 from Sainte-Geneviève, named for soldier Adam Dollard des Ormeaux, a city since 1960, demerged from Montreal in 2006.
Doral, Florida
Doral is a city in Miami-Dade County, Florida, incorporated January 28, 2003, near Miami International Airport. Known as Doralzuela for its large Venezuelan community, it is a logistics and Latin American commerce hub of about 81,600 residents.
Dosquebradas
Dosquebradas, Risaralda, Colombia: industrial satellite municipality of Pereira in the Eje Cafetero, named for the Santa Teresita and Las Garzas streams. Founded 1844, municipality since 1972; about 225,540 people, 70.58 km², 1,460 m elevation.
Dothan, Alabama
Dothan, Alabama: seat of Houston County in the Wiregrass region, incorporated 1885 as renamed Poplar Head, self-proclaimed Peanut Capital of the World since 1938, home of the National Peanut Festival, about 72,000 residents.
Dover, Delaware
Dover, Delaware: capital of Delaware and Kent County seat, founded by William Penn in 1683, plotted 1717, permanent capital since 1779. Population 39,403 (2020); economy based on state government and Dover Air Force Base.
Downey, California
Downey, California: a Los Angeles County city of about 108,000 southeast of Los Angeles, incorporated 1956, former aerospace hub where Apollo and space shuttle craft were built, largest employer Kaiser Permanente.
Doylestown, Pennsylvania
Doylestown, Pennsylvania: county seat of Bucks County, a borough of about 8,300 surrounded by Doylestown Township; known for Henry Mercer's Fonthill Castle, Mercer Museum, and walkable downtown.
Dripping Springs, Texas
Dripping Springs, Texas: a fast-growing Hays County city on US 290 about 25 miles west of Austin, founded in the 1850s, known as the Wedding Capital of Texas, a Dark Sky Community, and a Hill Country winery and tourism destination.
Dublin, California
Dublin, California is a city in Alameda County in the eastern San Francisco Bay Area, incorporated in 1982 and home to 72,589 people at the 2020 census.
Dublin, Ohio
Dublin, Ohio is a Columbus-area city founded in 1810 by John Sells and named by surveyor John Shields after Dublin, Ireland. Population 49,328 (2020); home to Cardinal Health, Muirfield Village, and the Dublin Irish Festival.
Dubuque, Iowa
Dubuque, Iowa: oldest city in Iowa, on the Mississippi at the Iowa-Illinois-Wisconsin junction. Founded by lead miner Julien Dubuque (1785), chartered 1837; 2020 population 59,667, council-manager government since 1920.
Duck, North Carolina
Duck, North Carolina: Outer Banks town in Dare County known for its MSD-funded beach nourishment program (first project 2017, next in 2027) and award-winning NC 12 living shoreline resiliency project completed in 2024.
Duitama
Duitama is a municipality in Boyacá, Colombia, named for the Muisca cacique Tundama, founded by the Spanish in 1602 and made a municipality in 1819 by Simón Bolívar.
Duluth, Georgia
Duluth, Georgia, a Gwinnett County city of about 31,873 (2020) northeast of Atlanta, founded as Howell's Cross Roads in 1821 and renamed in 1873 after Duluth, Minnesota.
Duluth, Minnesota
Duluth, Minnesota: Great Lakes port city at the western tip of Lake Superior, founded 1854, fifth-largest Minnesota city (88,330 in 2025), known for iron ore shipping, the Aerial Lift Bridge, and the Twin Ports harbor with Superior, Wisconsin.
Dunedin, Florida
Dunedin, Florida, a Gulf Coast city in Pinellas County between Tampa and Clearwater, founded by Scottish merchants J.O. Douglas and James Somerville, named for Dùn Èideann, home of Toronto Blue Jays spring training, Honeymoon and Caladesi islands, and the Pinellas Trail.
Duque de Caxias
Duque de Caxias, Baixada Fluminense municipality in Rio de Janeiro state, Brazil, created 1943 from Nova Iguaçu and named for the Duke of Caxias; 808,161 people (2022), oil refining and industrial economy.
Durango, Colorado
Durango, Colorado: county seat of La Plata County in the Animas River valley near Four Corners, founded 1880 by the Denver & Rio Grande Railroad, home to the Durango & Silverton Narrow Gauge Railroad and a tourism-driven economy.
Durham, North Carolina
Durham, North Carolina: Piedmont city and Durham County seat, nicknamed the Bull City for Bull Durham tobacco. Grew from an 1850s railroad station; home to Duke University, NC Central, and Research Triangle Park; population about 305,000.