The population was spread out with 31,471 people (30.4%) under the age of 18, 9,891 people (9.6%) aged 18 to 24, 28,144 people (27.2%) aged 25 to 44, 23,555 people (22.8%) aged 45 to 64, and 10,405 people (10.1%) who were 65 years of age or older.
30,4 % населения Мурриеты были младше 18 лет, 9,6 % — в возрасте от 18 до 24 лет, 27,2 % — от 25 до 44 лет, 22,8 % — от 45 до 64 лет и 10,1 % жителей были старше 65 лет.