Colorado was approved as the 38th state of the United States on August 1, 1876, coinciding with the 100th anniversary of American independence.

For this reason, it has the nickname "Centennial State." This area was originally the homeland of Native Americans, and before European settlement, it was inhabited by the Ute, Arapaho, and Cheyenne tribes.

In the mid-1800s, the discovery of gold mines led to a rapid increase in population, and particularly the Pikes Peak Gold Rush of 1859 was a major catalyst for the state's development. Subsequently, railroad construction and agriculture played a central role in the state's economy, and in the 20th century, mining, tourism, and the energy industry further developed.

As of 2025, Colorado's population is approximately 5.9 million, making it the 21st most populous state in the United States. Colorado has experienced a rapid rise in the real estate market in recent years, facing many challenges. Particularly, the metropolitan areas centered around Denver and Colorado Springs have seen housing prices steadily increase due to high demand and limited supply.

The capital is Denver, which is the most densely populated area. Major cities include Colorado Springs, Aurora, and Boulder.

The racial composition is as follows:

  • White: about 67%
  • Hispanic and Latino: about 22%
  • Black or African American: about 4%
  • Asian: about 3%
  • Other: about 4%

Colorado's economy is primarily based on energy, technology, agriculture, and tourism. In particular, the tourism industry centered around the Rocky Mountains attracts many visitors from around the world. The Denver and Boulder areas are also known as centers for technology and startups, with active IT and aerospace industries.

Agriculture focuses on wheat, corn, cattle, and crop cultivation in mountainous areas, while mining resources include coal, natural gas, uranium, and precious metals.

As of 2025, the median household income in Colorado is about $85,000, which is higher than the national average. This is attributed to a high level of education and the growth of the technology industry.

Colorado is regarded as a state with a high quality of life based on its rich nature and economic diversity, continuously attracting many immigrants.