You didn't specify which state, so here is all of them in the order in which they were admitted (courtesy of Wikipedia).
Delaware Friday, December 7, 1787 ‡
Pennsylvania Wednesday, December 12, 1787 ‡
New Jersey Tuesday, December 18, 1787 ‡
Georgia Wednesday, January 2, 1788 ‡
Connecticut Wednesday, January 9, 1788 ‡
Massachusetts Wednesday, February 6, 1788 ‡
Maryland Monday, April 28, 1788 ‡
South Carolina Friday, May 23, 1788 ‡
New Hampshire Saturday, June 21, 1788 ‡
Virginia Wednesday, June 25, 1788 ‡
New York Saturday, July 26, 1788 ‡
North Carolina Saturday, November 21, 1789 ‡
Rhode Island Saturday, May 29, 1790 ‡
Vermont Friday, March 4, 1791
Kentucky Friday, June 1, 1792
Tennessee Wednesday, June 1, 1796
Ohio Tuesday, March 1, 1803*
Louisiana Thursday, April 30, 1812
Indiana Wednesday, December 11, 1816
Mississippi Wednesday, December 10, 1817
Illinois Thursday, December 3, 1818
Alabama Tuesday, December 14, 1819
Maine Wednesday, March 15, 1820
Missouri Friday, August 10, 1821
Arkansas Wednesday, June 15, 1836
Michigan Thursday, January 26, 1837
Florida Monday, March 3, 1845
Texas Monday, December 29, 1845
Iowa Monday, December 28, 1846
Wisconsin Monday, May 29, 1848
California Monday, September 9, 1850
Minnesota Tuesday, May 11, 1858
Oregon Monday, February 14, 1859
Kansas Tuesday, January 29, 1861
West Virginia Saturday, June 20, 1863
Nevada Monday, October 31, 1864
Nebraska Friday, March 1, 1867
Colorado Tuesday, August 1, 1876
North Dakota Saturday, November 2, 1889
South Dakota Saturday, November 2, 1889
Montana Friday, November 8, 1889
Washington Monday, November 11, 1889
Idaho Thursday, July 3, 1890
Wyoming Thursday, July 10, 1890
Utah Saturday, January 4, 1896
Oklahoma Saturday, November 16, 1907
New Mexico Saturday, January 6, 1912
Arizona Wednesday, February 14, 1912
Alaska Saturday, January 3, 1959
Hawaii Friday, August 21, 1959
‡ Original 13 states. All became states on July 4, 1776. They are listed here, however, by their dates of ratifying the Constitution.
* Congress recognized the state of Ohio on February 19, 1803[1], but no formal date of statehood was set by the act of admission or a later resolution, as occurred with all other new states. On August 7, 1953, Congress passed a law retroactively setting the date of Ohio's statehood at March 1, 1803, the date when Ohio's first legislature convened.
† The actual statehood proclamations for North and South Dakota were intentionally shuffled so that no one actually knows which was admitted first; President Benjamin Harrison always refused to tell the order in which he signed the two statehood bills. However, North Dakota's proclamation was published first in the Statutes at Large (since it is first alphabetically).
Oregon was admitted into the Union on February 14, 1859 becoming the 33rd state to join the union.
Feburary 14th 1859
1859
feb 14 1859
California was added to the United States on September 9, 1850. This made the state the 39th in the US.
1871
July 10, 1890 is when Wyoming joined the union Most of land that is now part of Wyoming was acquired by the United States with the Louisiana Purchase April 30, 1803. The northwestern part of what is now Wyoming was originally part of the "Oregon Country" which was claimed by both the United States and Britain. The Oregon Treaty, signed on June 15, 1846 in Washington, D.C., gave control of the part that is now in Wyoming to the United States. What is now southwestern Wyoming became nominally a part of the Spanish, and later Mexican, territory of Alta California, until it was ceded to the United States February 2, 1848 at the end of the Mexican-American war. It could be said that Wyoming "joined" the United States in 1803, 1846, and 1848, but the STATE of Wyoming didn't join the union until 1890; the United States admitted Wyoming into the Union as the 44th state on July 10, 1890.
At the time of the Texas revolution, most Texans and Americans assumed that the Republic of Texas would swifly be annexed to the United States. On December 29, 1845, the U.S. Congress admitted Texas as the 28th state.
It became the 27th US State on 3 March 1845.
Minnesota was admitted into the Union on May 11, 1858 becoming the 32nd state to join the Union. Oregon was admitted into the Union on February 14, 1859 becoming the 33rd state to join the union.
In 1848 it was admitted into the United States Of America.
The last state in the continental United States to be admitted to the Union was Arizona. It was admitted on February 14, 1912. Not long before that, New Mexico was the 47th state to be admitted on January 6, 1912. Of course, Alaska and Hawaii were admitted after Arizona in 1959, but they are not part of the continental states.
NC was one of the original thirteen states admitted in 1789.
From 1912 to 1959 the US had 48 states. Alaska was admitted to the Union in January 1959 and Hawaii joined in August of that year.
California was added to the United States on September 9, 1850. This made the state the 39th in the US.
Kansas was an organized territory of the United States from May 30, 1854, until January 29, 1861 when it was admitted to the Union as the 34th State.
The US State of South Dakota entered the United States as a State on November 2, 1889. It became the 40th State.
New Mexico and Arizona became states in the United States on January 6, 1912. As of 2014, they were the last states admitted to the Union.
Oregon was admitted into the Union on February 14, 1859 becoming the 33rd state to join the union.
1871
Oregon was admitted into the Union on February 14, 1859 becoming the 33rd state to join the union.