As of the census of 2010, there were 4,634 people, 1,882 households, and 934 families residing in the city. The population density was . There were 2,111 housing units at an average density of . The racial makeup of the city was 94.7% White (U.S. Census), 1.2% African American (U.S. Census), 1.0% Native American (U.S. Census), 1.7% Asian (U.S. Census), 0.1% Race (U.S. Census), 0.1% from Race (U.S. Census), and 1.3% from two or more races. Hispanic (U.S. Census) or Latino (U.S. Census) of any race were 1.4% of the population.
Question: How many more housing units are there than households?
Answer: 229