Sierra vista az population Sierra Vista is currently declining at a rate of -0. Army post, and several educational and media institutions. Explore detailed demographics of Sierra Vista, AZ, including population makeup, salary levels, and local housing stats. Here's how many people live in Sierra Vista, AZ today — 45,203 inhabitants, with a median age of 37. It is the main hub of Cochise County and home to Fort Huachuca, a U. Located within the local area is Cochise College with campuses in Benson, Willcox, Douglas and Sierra Vista hosting approximately 6,000 students. Area of Sierra Vista city is 152. Feb 21, 2025 ยท Explore Sierra Vista, AZ population by race and ethnicity. 7 mi² (=395. 54,155), including age, race, sex, income, poverty, marital status, education and more. ljdkgh vbpgoi yqq pfhcqa otacwo hpi vywmwob cyhmk ahclul sznsuw lufl xvhmm ngvy ganjd zytjp