The average household size was 2.35 and the average family size was 3.02. In the city the population was spread out, with 20.0% under the age of 18, 7.1% from 18 to 24, 29.6% from 25 to 44, 23.6% from 45 to 64, and 19.8% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 91.0 males. For every 100 females age 18 and over, there were 87.4 males. The median income for a household in the city was $42,478, and the median income for a family was $52,701. Males had a median income of $31,300 versus $26,788 for females. The per capita income for the city was $22,631. About 3.4% of families and 7.0% of the population were below the poverty line, including 7.8% of those under age 18 and 6.0% of those age 65 or over. On September 17, 1968, the existing Mayor-Council form of government was changed to a Commission form of government, under the Walsh Act, one of 7 of 565 municipalities statewide that use this form. The governing body is comprised of three Commissioners who are elected at-large to serve four-year terms on a concurrent basis in non-partisan elections held as part of the May municipal election. After each election, the three elected commissioners are each assigned a department to oversee and choose one of their members to serve as Mayor.  , the members of the Ventnor City Board of Commissioners are  Mayor Beth Holtzman (Commissioner of Revenue and Finance),  Tim Kriebel (Commissioner of Public Affairs and Public Safety) and  Lance B. Landgraf Jr. (Commissioner of Public Works, Parks and Public Property), all serving terms of office that end on May 15, 2020. In the 2016 municipal elections, the Imagine Ventnor slate of Beth Holtzman, Tim Kriebel and Lance Landgraf won election in a field of five candidates, with none of the incumbents running for re-election. In the May 2012 elections, challengers Mike Bagnell (with 1,213 votes) and Frank Sarno (1,175) won seats on the commission, while incumbent Theresa Kelly won the third seat with 1,164 votes, putting her two votes ahead of Albert Battaglia after provisional ballots were counted.