Rhestr prifddinasoedd yr Unol Daleithiau

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Cromen adeilad y United States Capitol

Mae Washington, D.C., wedi bod yn brifddinas Unol Daleithiau America ers 1800. Mae Cyngres yr Unol Daleithiau wedi cyfarfod wyth gwaith hyd yma mewn dinasoedd eraill, felly fe'u hystyrir yn brifddinasoedd hanesyddol. Ceir hefyd 50 o brifddinasoedd y taleithiau a phum prif rhanbarth, gyda'u prifddinasoedd eu hunain.

Prif Drefi Siroedd Unol Daleithiau America
Talaith Talf. Dyddiad creu'r dalaith Prifddinas Dyddiad
sefydlu'r
brifddinas
Arwynebedd (mi²) Dinas mwyaf poblog Poblogaeth y fwrdeisdref Poblogaeth y metropol
Baner Alabama Alabama AL 1819 Montgomery 1846 155.4 Na 205,764 374,536
Baner Alaska Alaska AK 1959 Juneau 1906 2716.7 Na 31,275
Baner Arizona Arizona AZ 1912 Phoenix 1889 474.9 Ie 1,445,632 4,192,887
Baner Arkansas Arkansas AR 1836 Little Rock 1821 116.2 Ie 193,524 877,091
Baner Califfornia Califfornia CA 1850 Sacramento 1854 97.2 Na 466,488 2,527,123
Baner Colorado Colorado CO 1876 Denver 1867 153.4 Ie 600,158 2,552,195
Baner Connecticut Connecticut CT 1788 Hartford 1875 17.3 Na 124,512 1,212,381
Baner De Carolina De Carolina SC 1788 Columbia 1786 125.2 Ie 129,272 805,106
Baner De Dakota De Dakota SD 1889 Pierre 1889 13.0 Na 13,646
Baner Delaware Delaware DE 1787 Dover 1777 22.4 Na 32,135
Efrog Newydd Efrog Newydd NY 1788 Albany 1797 21.4 Na 97,856 857,592
Baner Florida Florida FL 1845 Tallahassee 1824 95.7 Na 181,412 367,413
Georgia Georgia GA 1788 Atlanta 1868 131.7 Ie 420,003 5,268,860
Baner Gogledd Carolina Gogledd Carolina NC 1789 Raleigh 1794 114.6 Na 403,892 1,130,490
Baner Gogledd Dakota Gogledd Dakota ND 1889 Bismarck 1883 26.9 Na 61,272 108,779
Baner Gorllewin Virginia Gorllewin Virginia WV 1863 Charleston 1885 31.6 Ie 51,400 304,214
Baner Hawaii Hawaii HI 1959 Honolulu 1845 85.7 Ie 337,256 953,207
Baner Idaho Idaho ID 1890 Boise 1865 63.8 Ie 205,671 616,561
Baner Illinois Illinois IL 1818 Springfield 1837 54.0 Na 116,250 208,182
Baner Indiana Indiana IN 1816 Indianapolis 1825 361.5 Ie 829,718 1,756,221
Baner Iowa Iowa IA 1846 Des Moines 1857 75.8 Ie 203,433 562,906
Baner Kansas Kansas KS 1861 Topeka 1856 56.0 Na 127,473 230,824
Baner Kentucky Kentucky KY 1792 Frankfort 1792 14.7 Na 25,527 70,758
Baner Louisiana Louisiana LA 1812 Baton Rouge 1880 76.8 Na 229,553 802,484
Baner Maine Maine ME 1820 Augusta 1832 55.4 Na 19,136 117,114
Baner Maryland Maryland MD 1788 Annapolis 1694 6.73 Na 38,394
Baner Massachusetts Massachusetts MA 1788 Boston 1630 48.4 Ie 617,594 4,522,858
Baner Mecsico Newydd Mecsico Newydd NM 1912 Santa Fe 1610 37.3 Na 75,764 183,732
Baner Michigan Michigan MI 1837 Lansing 1847 35.0 Na 114,297 464,036
Baner Minnesota Minnesota MN 1858 Saint Paul 1849 52.8 Na 285,068 3,502,891
Mississippi Mississippi MS 1817 Jackson 1821 104.9 Ie 173,514 539,057
Baner Missouri Missouri MO 1821 Dinas Jefferson 1826 27.3 Na 43,079 149,807
Baner Montana Montana MT 1889 Helena 1875 14.0 Na 28,190 74,801
Baner Nebraska Nebraska NE 1867 Lincoln 1867 74.6 Na 258,379 302,157
Baner Nevada Nevada NV 1864 Carson City 1861 143.4 Na 55,274
Baner New Hampshire New Hampshire NH 1788 Concord 1808 64.3 Na 42,695
Baner New Jersey New Jersey NJ 1787 Trenton 1784 7.66 Na 84,913 366,513
Baner Ohio Ohio OH 1803 Columbus 1816 210.3 Ie 787,033 1,836,536
Baner Oklahoma Oklahoma OK 1907 Dinas Oklahoma 1910 607.0 Ie 580,000 1,252,987
Baner Oregon Oregon OR 1859 Salem 1855 45.7 Na 154,637 390,738
Baner Pennsylvania Pennsylvania PA 1787 Harrisburg 1812 8.11 Na 49,528 647,390
Baner Rhode Island Rhode Island RI 1790 Providence 1900 18.5 Ie 178,042 1,630,956
Baner Tennessee Tennessee TN 1796 Nashville 1826 473.3 Na 635,710 1,582,264
Baner Texas Texas TX 1845 Austin 1839 251.5 Na 790,390 1,716,291
Baner Utah Utah UT 1896 Salt Lake City 1858 109.1 Ie 186,440 1,124,197
Baner Vermont Vermont VT 1791 Montpelier 1805 10.2 Na 7,855
Baner Virginia Virginia VA 1788 Richmond 1780 60.1 Na 204,214 1,231,675
Washington Washington WA 1889 Olympia 1853 16.7 Na 46,478 234,670
Baner Wisconsin Wisconsin WI 1848 Madison 1838 68.7 Na 233,209 561,505
Baner Wyoming Wyoming WY 1890 Cheyenne 1869 21.1 Ie 59,466 91,738