A study is the first to use a large range of instruments/ tools and include older adults from many ethnic groups to determine factors affecting their physical activity. Results showed that age, education, social network, pain and depression accounted for a statistically significant proportion of unique variance in physical activity in this diverse older population living independently. Those who reported lower physical activity tended to be older, have less years of education and reported lower social engagement, networking, resilience, mental health, self-health rating, and higher levels of depression, anxiety, pain, and body mass index compared to the moderate to high physical activity groups.