There are a total of 52 US Capitals that have been compiled and organized in this comprehensive list. The selection includes the 50 official U.S. state capitals plus Washington, D.C., and U.S. territorial capitals where noted.

US Capitals are the official seats of state governments and the administrative centers where governors, legislatures, and key agencies meet. They range from major metropolitan cities to small towns, and they serve political, legal, and ceremonial roles. Many capitals also act as cultural and historical hubs for their states. Their size, geography, and origins reflect each state’s history and development.

Interesting and little-known facts about US Capitals:
– Phoenix, Arizona, is the largest state capital by population, with more than 1.6 million residents (2020 Census).
– Montpelier, Vermont, is the smallest state capital, with fewer than 10,000 residents.
– Santa Fe, New Mexico, is the oldest capital in continuous use in the United States, established in 1610.
– Juneau, Alaska, is not connected to the rest of the state by road and is accessible only by air or sea.
– Many state capitals were established or moved in the 19th century to be more centrally located or to align with railroad and river networks.

The alphabetical index lists capitals by initial letter for quick reference. Each letter listing includes a compact, sortable table with these columns: capital name, state, and population (with the year of the census or estimate).