Peoria is a city in Maricopa and Yavapai counties in the U.S. state of Arizona. Located primarily in Maricopa County, it is a major suburb of Phoenix. According to 2006 Census Bureau estimates, the population of the city is 142,024. Peoria is currently the fourth largest city in the state of Arizona in terms of land area, and the ninth largest city in the state in terms of population. The city was named after Peoria, Illinois. (The word “Peoria” is a corruption of the Illini word for “prairie fire. ”) Peoria is now larger in population than its namesake. It is the spring training home of the San Diego Padres and Seattle Mariners who share the Peoria Sports Complex. In July 2008, Money Magazine listed Peoria in the "Top 100 Places to Live".