The naming of Monmouth County has different historical theories. It is thought that the county received its name from the Rhode Island Monmouth Society. This is likely, due to many of the county's earliest settlers orig… See more

According to the U.S. Census Bureau, as of the 2020 Census, the county had a total area of 661.40 square miles (1,713.0 km ), of which 468.18 square miles (1,212.6 km ) was land (70.8%) and 193.22 square miles (500.4 km … See more

As of the 2020 census, the county had 643,615 people, 240,377 households, and 161,545 families. The population density was 1,372.9 inhabitants per square mile (530.1/km ). There were 268,912 housing units at an … See more

Monmouth County is governed by a five-member Board of County Commissioners, who are elected at-large for three-year terms of office on a staggered basis, with either one or two seats up for election each year. Each … See more

Monmouth County has generally leaned Republican by small margins in federal, state, and local races, though registered Republicans only outnumber registered Democrats by 2.5%. All of its County Commissio… See more