 6.03% of the population were Hispanic or Latino of any race.According to the 2000 Census the largest European ancestry groups in Marion County were English (18.7%), German (16.7%) and Irish (14.0%).There were 106,755 households out of which 24.70% had children under the age of 18 living with them, 55.60% were married couples living together, 10.70% had a female householder with no husband present, and 30.10% were non-families.