By MIKE SCHNEIDER Immigrants kept the largest urban counties in the U.S. growing last year. Core counties in the Houston, ...

Maricopa County remains the fourth most populous county in the nation taking into account the newest Census data. Here's how ...

Grijalva, the son of a Mexican immigrant who rose to the halls of Congress in a public-service career that stretched more ...

An Arizona man is in the Henderson County Jail after allegedly attempting to solicit a minor for sex while traveling for work ...

Immigration was the biggest factor in population growth for many booming Sun Belt counties as well as for the agricultural Midwest, according to a Stateline analysis of new U.S. Census Bureau county ...

The Arizona Humane Society says this incident serves as a "stark reminder" of Marciopa County's animal welfare crisis.

The National Weather Service has issued a dust storm warning for Pima and Pinal counties through 6 p.m. March 13. The warning includes the Interstate 10 corridor. The weather service reported less ...

Multiple road closures are scattered in northern Arizona because of a winter snow storm that is whitewashing Yavapai, ...

The U.S. government raised concerns the county is encouraging migrants to come to the United States and illegally harboring them.

It's been almost a month since a professional truck driver was brutally attacked at a Cochise County rest area and left in ...

Elected 12 times to Congress, Grijalva was a fixture of Tucson politics and a standard-bearer of progressive Democrats.

Democratic U.S. Rep. Raúl M. Grijalva of Arizona, who championed environmental protection during his 12 terms in Congress, ...