Read this article and answer this question As of the census of 2000, there were 74,563 people, 25,447 households, and 20,154 families residing in the county.  The population density was 346 people per square mile (134/km²).  There were 27,576 housing units at an average density of 128 per square mile (49/km²).  The racial makeup of the county was 83.93% Race (United States Census), 13.11% Race (United States Census) or Race (United States Census), 0.30% Race (United States Census), 0.88% Race (United States Census), 0.03% Race (United States Census), 0.49% from Race (United States Census), and 1.27% from two or more races.  1.52% of the population were Race (United States Census) or Race (United States Census) of any race. 15.5% were of irish people, 15.0% german people, 12.0% english people, 11.5% United States or American and 7.1% italian people ancestry.
Which ancestral groups are at least 10%?
irish