Edited sentence: Every year residents from many cities outside the boundaries to these schools try to make their children attend these schools but only a limited amount get in.In 2006, Money magazine ranked Rancho Cucamonga as the 42nd-best place to live in the United States.It is the richest city in the entire county of San Bernardino and Riverside county.The three best ranking schools in the entire county of San Bernardino and Riverside country are located in Rancho Cucamonga.These schools are: Alta Loma High School, Rancho Cucamonga High School, and Los Osos High School.Those who are accepted attend these schools under a contract with specified rules