What is the capital of United States?
The capital of United States is Washington D.C.
Washington D.C. is the capital city and seat of government of United States, a country in North America. United States uses the ISO codes US and USA, and its international dialling code is +1201. The currency in use is the United States dollar (USD).
For the full profile of United States, including its flag, currency, calling code, population and the countries it borders, see the United States country page. The country has an estimated population of 341,784,857 as of 2025.
Quick facts about United States
- Capital: Washington D.C.
- Region: North America
- Currency: United States dollar (USD)
- Calling code: +1201, +1202, +1203, +1205, +1206, +1207, +1208, +1209, +1210, +1212, +1213, +1214, +1215, +1216, +1217, +1218, +1219, +1220, +1223, +1224, +1225, +1227, +1228, +1229, +1231, +1234, +1239, +1240, +1248, +1251, +1252, +1253, +1254, +1256, +1260, +1262, +1267, +1269, +1270, +1272, +1274, +1276, +1279, +1281, +1283, +1301, +1302, +1303, +1304, +1305, +1307, +1308, +1309, +1310, +1312, +1313, +1314, +1315, +1316, +1317, +1318, +1319, +1320, +1321, +1323, +1325, +1326, +1327, +1330, +1331, +1332, +1334, +1336, +1337, +1339, +1341, +1346, +1347, +1351, +1352, +1360, +1361, +1364, +1380, +1385, +1386, +1401, +1402, +1404, +1405, +1406, +1407, +1408, +1409, +1410, +1412, +1413, +1414, +1415, +1417, +1419, +1423, +1424, +1425, +1430, +1432, +1434, +1435, +1440, +1442, +1443, +1445, +1447, +1448, +1458, +1463, +1464, +1469, +1470, +1475, +1478, +1479, +1480, +1484, +1500, +1501, +1502, +1503, +1504, +1505, +1507, +1508, +1509, +1510, +1512, +1513, +1515, +1516, +1517, +1518, +1520, +1521, +1522, +1523, +1524, +1525, +1526, +1527, +1528, +1529, +1530, +1531, +1532, +1533, +1534, +1535, +1538, +1539, +1540, +1541, +1542, +1543, +1544, +1545, +1546, +1547, +1549, +1550, +1551, +1552, +1553, +1554, +1556, +1557, +1558, +1559, +1561, +1562, +1563, +1564, +1566, +1567, +1569, +1570, +1571, +1572, +1573, +1574, +1575, +1577, +1578, +1580, +1582, +1585, +1586, +1588, +1589, +1601, +1602, +1603, +1605, +1606, +1607, +1608, +1609, +1610, +1612, +1614, +1615, +1616, +1617, +1618, +1619, +1620, +1623, +1626, +1628, +1629, +1630, +1631, +1636, +1640, +1641, +1646, +1650, +1651, +1656, +1657, +1659, +1660, +1661, +1662, +1667, +1669, +1678, +1679, +1680, +1681, +1682, +1689, +1700, +1701, +1702, +1703, +1704, +1706, +1707, +1708, +1710, +1712, +1713, +1714, +1715, +1716, +1717, +1718, +1719, +1720, +1724, +1725, +1726, +1727, +1730, +1731, +1732, +1734, +1737, +1740, +1743, +1747, +1754, +1757, +1760, +1762, +1763, +1765, +1769, +1770, +1771, +1772, +1773, +1774, +1775, +1779, +1781, +1785, +1786, +1801, +1802, +1803, +1804, +1805, +1806, +1808, +1810, +1812, +1813, +1814, +1815, +1816, +1817, +1818, +1820, +1826, +1828, +1830, +1831, +1832, +1838, +1839, +1840, +1843, +1845, +1847, +1848, +1850, +1854, +1856, +1857, +1858, +1859, +1860, +1862, +1863, +1864, +1865, +1870, +1872, +1878, +1901, +1903, +1904, +1906, +1907, +1908, +1909, +1910, +1912, +1913, +1914, +1915, +1916, +1917, +1918, +1919, +1920, +1925, +1928, +1929, +1930, +1931, +1934, +1936, +1937, +1938, +1940, +1941, +1943, +1945, +1947, +1948, +1949, +1951, +1952, +1954, +1956, +1959, +1970, +1971, +1972, +1973, +1975, +1978, +1979, +1980, +1983, +1984, +1985, +1986, +1989
- Flag emoji: 🇺🇸
Frequently asked questions
What is the capital of United States?
The capital of United States is Washington D.C..
Is Washington D.C. the largest city in United States?
Washington D.C. is the capital of United States and its seat of government. In many countries the capital is also the largest city, though not always, so the biggest city by population can differ.
What currency is used in Washington D.C.?
Washington D.C., like the rest of United States, uses the United States dollar (USD, symbol $).
Capitals of neighbouring countries
Capital and country data from open datasets. Full sources on the data page.