phone book, or the business directory.

Colorado

Colorado, a western U.S. state, has a diverse landscape of arid desert, river canyons and snow-covered Rocky Mountains, which are partly protected by Rocky Mountain National Park. Elsewhere, Mesa Verde National Park features Ancestral Puebloan cliff dwellings. Perched a mile above sea level, Denver, Colorado’s capital and largest city, features a vibrant downtown area.

The state of Colorado has a population of 4,977,319, and is formerly abbreviated as CO. Colorado has 1,909,037 households in the state, with an average of 2.55 people living in each of them. Of the 4,977,319 people living in Colorado, 50.32% are male, 49.68% are female, 59.16% are married and 40.84% are single. 61.73% of existing homes are owned by inhabitants, with a median home cost of $214,530 in the state.

Air quality in Colorado is rated at 68.8/100, and water quality at 80/100. There are 226.3 physicians in Colorado per 100,000 of the population. Unemployment rates average 6.60% in the state and the sales tax rate is 6.50%.

Average income per household in Colorado is $56,713. 9.43% of households have income levels less than $15,000 per year. 20.84% of households have income levels between $50,000 and $75,000 annually, and 0.69% earn more than $500,000 per year.

Colorado Area Codes

Area code 303 serves the state of Colorado. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 303 is a General Purpose Code. 303 service area does overlap with 720 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.

Area code 719 serves the state of Colorado. This area code was assigned on March 27th, 1987. On March 5th, 1988 it went into service. 719 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.

Area code 720 serves the state of Colorado. This area code was assigned on March 3rd, 1998. On June 1st, 1998 it went into service. 720 is a General Purpose Code. 720 service area does overlap with 303 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.

Area code 970 serves the state of Colorado. This area code was assigned on September 21st, 1994. On April 2nd, 1995 it went into service. 970 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.