Westley is located close to the center of California. Westley is part of Stanislaus County. Westley has 1.74 square miles of land area and has no water area. As of 2010, the total Westley population is 603, which has shrunk 19.28% since 2000. The population growth rate is much lower than the state average rate of 9.99% and is much lower than the national average rate of 9.71%. Westley median household income is $32,045 in 2008-2012 and has grown by 56.95% since 2000. The income growth rate is much higher than the state average rate of 29.28% and is much higher than the national average rate of 26.32%.