Nebraska was one of the last states to adopt an official flag. In 1921, a state flag design by a New York Architect was presented to the Legislature, but was turned down as being inappropriate. The design finally accepted for the flag of the State of Nebraska was suggested by State Representative J. Loyed McMaster, who introduced a bill in 1925, designating a design which was adopted in 1925. His bill called for "a reproduction of the Great Seal of the State charged on the center in gold and silver on a field of national blue." The official designation of the design as the state flag occurred in 1963.

The current flag of Nevada was the winner of a design contest announced in 1926. The winning design was submitted by Louis Shellback III, but was slightly revised in the state legislature who argued over where to place the word "Nevada" on the flag. A compromise was reached, and in 1929, Governor Fred Balzar signed into law a bill adopting the new flag. A later law enacted in 1991 directed that the word "Nevada" appear below the star and above the sagebrush sprays, thus producing the current design. The flag of the State of Nevada now consists of a cobalt blue field with a silver star in the upper left hand corner, surrounded by the state name "Nevada." Above this is a golden-yellow scroll with the words "Battle Born," (the state motto) indicating that Nevada became a state during the American Civil War. Below the star are two sprays of green sagebrush (the state flower) with yellow flowers.

Prior to 1909, the State of New Hampshire had no official state but was represented by various regimental flags. In 1909, the State legislature adopted a flag that consisted of the state seal centered on a blue background. The seal depicts the frigate USS Raleigh and is surrounded by a laurel wreath with nine stars. The Raleigh is one of the first 13 warships sponsored by the Continental Congress for a new American navy, built in 1776, at Portsmouth. Vexillologist James Ferrigan noted: "It is interesting that the Hew Hampshire state flag is the only state flag that depicts another state on its flag. The illustration of the seal is of the frigate Raleigh under construction on a sand bar which at the time the seal was made was part of Massachusetts, and is now part of Maine." The flag has only been changed once, in 1931 the state seal was modified.

On March 11, 1896, Charles F. Hopkins of Morris County, on leave, introduced Assembly Joint Resolution No. 2 to define the New Jersey State Flag. According to the minutes of the New Jersey General Assembly they officially approved a flag with the state emblem centered on a the buff color field. This is due indirectly to George Washington, who had ordered on October 2, 1779, that the uniform coats of the New Jersey Continental Line be dark (Jersey) blue, with buff facings. Buff-colored facings had until then been reserved only for his own uniform and those of other Continental generals and their aides. Then, on February 28, 1780, the Continental War Officers in Philadelphia directed that the uniform coat facings of all regiments were to be the same as the background color of the regiments' state flag. Because of this, the flag they approved to be the State of New Jersey flag included the emblem from the Great Seal of the State of New Jersey on a buff-colored background.

In 1920, the Daughters of the American Revolution held a contest to design a contemporary and unique flag for New Mexico. The winner was Harry Mera of Santa Fe. Doctor Mera was an archaeologist who was familiar with the Zia sun symbol that has sacred meaning which symbolizes the Circle of Life: four winds, four seasons, four directions, and four sacred obligations. His winning design consisted of a red sun symbol of the Zia on a field of yellow. The colors honor Isabella I of Castile, her Habsburg heirs and the Conquistadors who explored in her name.

The coat-of-arms used on the New York State Flag was adopted in 1778 and the present flag is a modern version of a Revolutionary War flag. The New York legislature changed the original design of the Revoluntary Flags field from buff to blue by a law enacted on April 2, 1901. The original with the buff field is part of the collection of the Albany Institute of History and Art.

The present state flag of North Carolina is based on the flag of North Carolina that state Adjutant General, Johnstone Jones, a former Confederate soldier, introduced the bill which led the state legislature to adopt a new flag in March of 1885. The only real changes have been perportional (ratio) in nature. The flag has a blue union, containing a centered white star with a gold letter "N" on the left and the gold letter "C" on the right. Above the star is a semi-circular scroll containing in black letters "May 20th, 1775" (Mecklenburg Declaration of Independence) and below the star there is a similar scroll containing in black letters the inscription "April 12th, 1776" (Halifax Resolves). The fly of the flag has two equally proportioned bars, red (top) and white (bottom).

The design for the flag of the State of North Dakota is an almost exact copy of the unit banner carried by the state's troop contingent in the Philippine-American War. It was adopted by the North Dakota Legislative Assembly in 1911. The original troop banner is on display at the North Dakota Heritage Center in Bismarck.

The flag of the State of Ohio was adopted in 1902 and designed by John Eisemann, for the 1901 Pan-American Exposition. It differs from all other United States state flags in its shape. Loosely based upon the design of cavalry guidons of the Civil War and Spanish-American War, the proper name for this type of flag is burgee (broad tapering pennant, often with a swallowtail). It consists of 5 horizontal stripes alternating between red and white. The chevron is azure blue and contains a white and red "O" and 17 white stars.

The flag of the State of Oklahoma consists of a traditional Osage Nation buffalo-skin shield with seven eagle feathers on a sky blue field. In a flag contest sponsored by the Daughters of the American Revolution in 1924, the winning entry was by Louise Fluke. On April 2, 1925, her design was adopted as the state flag, but without the word "Oklahoma" on it, which was added in 2006.

The flag of the State of Oregon is a two-sided flag in navy blue and gold lettering with an optional gold fringe. On the front is the escutcheon from the state seal and on the reverse is a gold figure of a beaver (the state animal). Oregon is the only U.S. state to have a two-sided flag.

The first Pennsylvania State flag was adopted by the Executive Council in 1778. It was used to identify the State's wharf in Philadelphia, but the background color is not stated. One theory is that it may have been red, because red was used as background in the majority of surviving PA revolutionary colors. The current flag was adopted in 1907, and is composed of a blue field on which is embroidered with the State Coat-of-Arms. The use of the blue field dates back to the Civil War when many Pennsylvania regiments carried flags modeled after the canton of the U.S. Flag, but substituted Pennsylvania's Coat-of-Arms for the field of stars.

The present flag of the State of Rhode Island was formally adopted by the Rhode Island General Assembly in 1897, replacing a similar flag, but with a blue background, that had used during the Confederation years (1882-1897). Rhode Island was the third of the original thirteen colonies to formally adopt a state flag, New Jersey and New York having done so in 1896. The colors, white and blue, are the same as those used in the flags carried by the regiments of Rhode Island during the American Revolution and the War of 1812. The anchor has been connected with Rhode Island since its foundation. As early as the 1640s, the word "hope" was found on the Rhode Island Seal. Most experts believe the word was inspired by the biblical phrase of "Hope, we have as an anchor of the soul."

The flag of the State of South Carolina dates back to 1765 when opponents of the Stamp Act marched in protest behind a blue flag bearing three white crescents. In 1775, Colonel William Moultrie was asked by the Revolutionary Council of Safety to design a flag for the South Carolina troops to use during the American Revolutionary War. Moultrie's design had the blue of the militia's uniforms and the crescent from the emblem on their caps. The palmetto tree was officially added in 1861 to honor Moultrie's heroic defense of the palmetto log fort on Sullivan's Island against the attack of the British fleet on June 28, 1776, but the South Carolina Militia Act of 1839 specified flags with palmetto trees on them, with either red fields or blue fields, could be used on Militia flags and the Palmetto Regiment of the Mexican War carried flags of this nature in the mid-1840's.

The flag of the State of South Dakota has a field of sky blue and the state seal in the center, surrounded by gold triangles representing the sun's rays. The inscription in gold sans-serif capitals of "SOUTH DAKOTA" arches over the top and "THE MOUNT RUSHMORE STATE" (the state nickname) revese arches on the bottom. An inscription on the bottom "THE SUNSHINE STATE" was removed in 1992.

The Tennessee State Flag was designed by Captain LeRoy Reeves of the Third Regiment, Tennessee National Guard. The three stars represent the three main geographical divisions of the state, East Tennessee, Middle Tennessee, and West Tennessee. The blue circle around the stars represents the unity of the of the state. The blue bar at the edge of the flag was purely a design consideration and prevents the flag from showing too much crimson when hanging limp. This flag was adopted as the official flag of the State of Tennessee by an act of the Tennessee Legislature and approved April 17, 1905.

The Texas flag is known as the "Lone Star Flag" and was introduced to the Congress of the Republic of Texas on December 28, 1838, by Senator William H. Wharton. It was adopted on January 25, 1839 as the national flag of the Republic of Texas. In 1845 when Texas was admitted to the Union, they kept the same flag as their Texas State Flag.

The flag of the State of Utah was adopted in 1913 and consists of the seal of Utah encircled in a golden circle on a background of navy blue. The Great Seal consists of a thin gold circle, which encloses the coat-of-arms. The coat-of-arms contains a beehive which has the state motto "INDUSTRY" arced above and the word "UTAH" and "1847," the year of Mormon settlement, below, and is flanked by sego lilies, the state flower. Six arrows originate from above "INDUSTRY" and go out past the border of the shield. An eagle is perched on top of the shield, ready to take flight. The shield is flanked by United States flags on both sides, their poles crossed behind the shield, and immediately below the shield is "1896," the year of statehood.

The flag of the Commonwealth of Virginia consists of the seal of Virginia against a blue background. The current version of the flag was adopted at the beginning of the American Civil War in 1861. The flag may be decorated with a white fringe along the fly. However, the Virginia state flag adopted in 1861 is a bit different than the flag adopted afterwards that flies today. The two changes are the laurel wreath that goes around the state coat-of-arms (a post-Civil War addition), as was the bared breast of the lady liberty figure in the coat-of-arms. During the Civil War era she was completely covered up. The Latin motto "Sic semper tyrannis" at the bottom of the state seal means "Thus Always to Tyrants." This quote is attributed to Brutus during the assassination of Julius Caesar in Rome. The woman is "Virtus, the genius of the Commonwealth, dressed as an Amazon" and represents Virginia. The prostrate man represents tyranny; note the fallen crown to the right. The tyrant is holding both a chain and a scourge.

The flag of the State of Washington consists of the Washington State Seal which bears an image of George Washington on a field of dark green. A gold fringe is optional. It is the only U.S. state flag with a field of green, as well as the only state flag with the image of an American president. The design was adopted in 1923, prior to which Washington had no official state flag.

The flag of the State of West Virginia consists of the state's coat-of-arms on a white field with a dark blue border, adopted in 1929. After West Virginia broke away from Virginia in the midst of the Civil War and was admitted to the Union as a separate state in 1863, a committee of the West Virginia State Legislature commissioned Joseph H. Diss Debar, a local artist and political figure, to design a state seal. Debar's design was approved by the legislature on 26 September 1863. The West Virginia coat-of-arms is featured in the flag's center. The coat-of-arms symbolizes the state's principal pursuits and resources. The obverse side of the seal bears the legend "State of West Virginia" together with the state motto Montani Semper Liberi (mountaineers are always free). A farmer stands to the left and miner to the right of a large ivy draped rock bearing the date of the state's admission to the Union, June 20, 1863. The lower half of the coat-of-arms is wreathed by the rhododendron, the state flower.

The flag of the State of Wisconsin is a blue flag charged with the state coat-of-arms. Originally designed in 1863 when regiments from Wisconsin wanted a flag for battlefield use, it wasn't until 1913 that state statutes specified the design of the state flag. In order to distinguish it from the many other blue U.S. state flags, Wisconsin's flag was modified in 1979 to add "Wisconsin" and "1848," the year Wisconsin was admitted to the Union

The flag of the State of Wyoming was designed by 23-year old Veran Keays in 19i6 as an entry to a contest sponsored by the Wyoming Daughters of the American Revolution. Verna Keays won $20.00 for her efforts and competed against 36 other entries. She was 24 years old when her design was officially designated the state flag a year later. Basically her design consisted of the silhouette of an American Bison. The red symbolizes the Native Americans and the blood of pioneers who gave their lives. The white is a symbol of purity and uprightness. The blue is the color of the skies and distant mountains. The bison represents the local fauna while the seal on it symbolizes the custom of branding livestock.