Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2017 Census estimate, the county’s population was 125,059, making it the state’s 18th-most populous county,representing a 2.6% decrease from the 128,349 enumerated in the 2010 United States Census,in turn increasing by 6,360 (+5.2%) from the 121,989 counted in the 2000 Census, retaining its position as the state’s 14th-most populous county. The percentage increase in the population of 13.2% between 1990 and 2000 was the largest in New Jersey, almost triple the statewide increase of 4.5%, and the absolute increase in residents was the third highest. Its county seat is Flemington.
In 2015, the county had a per capita personal income of $80,759, the third-highest in New Jersey and ranked 33rd of 3,113 counties in the United States. The Bureau of Economic Analysis ranked the county as having the 19th-highest per capita income of all 3,113 counties in the United States (and the highest in New Jersey) as of 2009. Hunterdon County is noted for having the second-lowest level of child poverty of any county in the United States.