Population in households in Salt Lake County ; Total Population: 1,015,649; Male Population: 508,289; Under 5 years: 46,213; 5 to 9 years: 43,519; 10 to 14 years: 40,214; 15 to 17 years: 23,101; 18 and 19 years: 14,224; 20 years: 6,932; 21 years: 7,677; 22 to 24 years: 24,708; 25 to 29 years: 45,497; 30 to 34 years: 43,441; 35 to 39 years: 36,166; 40 to 44 years: 31,654; 45 to 49 years: 30,411