 About 1.0% of families and 2.0% of the population were below the poverty line, including 1.1% of those under age 18 and 1.4% of those age 65 or over.Midland Park is governed under the Borough form of New Jersey municipal government, one of 218 of 565 municipalities statewide that use this form, the most commonly used form of government in the state.The governing body consists of a Mayor and a Borough Council, with all positions elected at-large on a partisan basis as part of the November general election.