 33% of Oakland's residents were of German descent, 11% English, 11% Irish, 6% Italian, 2% Dutch, 2% French, 2% Polish, 2% Scottish, 2% Scotch-Irish and 2% Swedish.People of Swiss, British, Welsh and Hungarian descent each comprised 1% of the population.There were 787 households out of which 25.3% had children under the age of 18 living with them, 43.6% were married couples living together, 9.8% had a female householder with no husband present, and 43.1% were non-families.