The population in Millcreek was 62,139 in 2010, ranking it 10 among 326 places. This represents an increase of 31,762 from 30,377 in 2000. The largest minority group in 2010 in Millcreek was Hispanic/Latino, which accounted for 8.4 percent of the total population. The fastest-growing minority group in Millcreek was non-Hispanic Other Race, with an increase of 245.7 percent from 2000 to 2010. Households with children under 18 made up 30 percent of all households in 2010, a decrease from 30.3 percent in 2000. Owner-occupied housing units accounted for 62.2 percent of all households in 2010, an increase from 2000 when 44.7 percent of all housing units were owner-occupied.