Monmouth County, New Jersey
Check your Monmouth County registration.
Confirm what New Jersey has on file first, then use Monmouth County's official election channels below.
Stop 1: County
About Monmouth County
Monmouth County is a county located in the central portion of the U.S. state of New Jersey. It is bordered to its west by Mercer and Middlesex Counties, to its south by Ocean County, to its east by the Atlantic Ocean, and to its north by the Raritan Bay. Monmouth County's geographic area comprises 30% water. The county forms part of the New York metropolitan area. Monmouth County calls itself The Place You Want to Be. The county is part of the Jersey Shore region of the state.
Description adapted from Wikipedia, CC BY-SA 4.0.
Stop 2: Facts
Monmouth County at a glance
- County seat
- Freehold
- Population
- 643,615 (2020)
- Land area
- 665 sq mi
- Founded
- 1683
Stop 3: Places
Largest communities in Monmouth County
- Middletown67,106
- Howell53,537
- Marlboro41,502
- Manalapan Township40,905
- Freehold Township35,369
Stop 4: History
History of Monmouth County
As of the 2020 United States census, the county was the state's fifth-most-populous county with a population of 643,615, its highest decennial count ever and an increase of 13,235 (+2.1%) from the 2010 census count of 630,380, which in turn reflected an increase of 15,079 from 615,301 at the 2000 census. As of 2010, the county fell to the fifth-most populous county in the state, having been surpassed by Hudson County. The United States Census Bureau's Population Estimates Program estimated a 2025 population of 651,035, an increase of 7,420 (+1.2%) from the 2020 decennial census. Monmouth's county seat is Freehold Borough, though many county offices are also located in neighboring Freehold Township.
Adapted from Wikipedia, CC BY-SA 4.0.
Stop 5: Check
Start here
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Run a guided check
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Ask Monmouth County directly
Your county election office handles registration, mail ballots, and polling places.
Stop 6: Resources
Official channels
Monmouth County election resources
Statewide tools and every New Jersey resource in one place: the New Jersey page at Scan Check Protect →
Stop 7: Neighbors
Neighboring counties
Stop 8: About
Part of New Jersey Voter Check
This is the Monmouth County page of New Jersey Voter Check, a project of True the Vote, pointing New Jersey voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Monmouth County or the New Jersey Division of Elections publishes, they are right and this page is not.