Flag of Las Vegas

The Las Vegas flag consists of a blue field with a diagonal gray stripe running from the top of the hoist to the bottom of the fly. The Las Vegas city seal, adopted in 1966, is located in the canton (i.e., top left) that breaks the stripe.

Meaning

The dominant color of the flag is royal blue, symbolizing the blue skies of the state of Nevada.
The grey stripe alludes to Nevada's nickname "The Silver State ".
On the same day the flag was adopted, these two colors were also adopted as the official colors of Las Vegas.
The seal shows three tall buildings - the middle one is the tallest, the left one is the shortest, and the right one is half the height between the two. Each of these buildings has yellow awnings running down from left to right. The buildings and marquees symbolize tourism, an important industry in the city.
To the left of the buildings is the Hoover Dam, also in white. The dam is an important landmark in Clark County- At the base of the dam is the Colorado River, which runs to about the middle of the seal.
To the far left is a small portion of a brown cliff, symbolizing the mountainous terrain. To the right of the three buildings is a silhouette of Sunrise Mountain, symbolizing the mountains surrounding Las Vegas and environs.
In front of the mountain is a green Joshua tree with four branches, a reference to the desert landscape of the area. The sun, in yellow with orange rays, rises behind the mountains and is about level with the building on the far right.
The sky above is a lighter shade of blue than royal blue. A black jet and a black contrail above the scene allude to the importance of civil and military aviation in the region.
The outer ring of the seal bears the words "City Of Las Vegas" in the upper portion and "Nevada" in the lower portion, both in silver lettering.

History of the Las Vegas Flag

The Las Vegas City Council authorized a contest for a city flag on April 7, 1965. The winning design was created by Kenneth A. Bouton, an assistant to the city manager. The winning flag was not officially adopted until after another three years on October 2, 1968.

In a 2004 North American Vexillological Association survey of American city flags, Las Vegas ranked 93rd out of 150.