As of the census of 2000, there were 120,546 people, 41,668 households, and 32,292 families residing in the county.  The population density was 262 people per square mile (101/km²).  There were 43,903 housing units at an average density of 95 per square mile (37/km²).  The racial makeup of the county was 68.51% Race (United States Census), 26.06% Race (United States Census) or Race (United States Census), 0.75% Race (United States Census), 1.82% Race (United States Census), 0.06% Race (United States Census), 0.72% from Race (United States Census), and 2.08% from two or more races.  2.26% of the population were Race (United States Census) or Race (United States Census) of any race. 11.6% were of german people, 10.8% irish people, 10.2% english people, 9.3% American and 5.3% italian people ancestry.. How many more housing units are there than households?