text: ethnic groups in michigan? can someone tell me the ethnic groups in michigan? or possibly give me a link that shows the percentage of the ethnic groups in michigan? well, there are a lot of arabs around detroit... i think it is the highest percentage of arabs in the entire us. there are also a lot of african-americans, hispanics, and caucasians throughout the entire state, although there are fewer african-americans in the upper peninsula. in the up and in the northern part of the lp, there are a lot of native american reservations, and although there are not a lot of native americans the population percentage is relatively high.