Founded in 1683, Monmouth County is one of 21 counties in the state of New Jersey. Historically, Monmouth County was one of four original counties created in East Jersey. The city of Freehold Borough is the county seat. With FIPS code of 25, Monmouth County has a population of 645,354 and area of 472 square miles (1,222 km2).
List of all cities in Monmouth County, NJ alphabetically
| City/Town | Postal Code | Area Code |
| Aberdeen, NJ | 07747 | 732/848 |
| Adelphia, NJ | 07710 | 732/848 |
| Allenhurst, NJ | 07711 | 732/848 |
| Allentown, NJ | 08501 | 609 |
| Allenwood, NJ | 08720 | 732/848 |
| Asbury Park, NJ | 07712 | 732/848 |
| Atlantic Highlands, NJ | 07716 | 732/848 |
| Avon, NJ | 07717 | 732/848 |
| Avon by the Sea, NJ | 07717 | 732/848 |
| Belford, NJ | 07718 | 732/848 |
| Belmar, NJ | 07715 | 732/848 |
| 07719 | 732/848 | |
| Bradevelt, NJ | 07746 | 732/848 |
| Bradley Beach, NJ | 07720 | 732/848 |
| Brielle, NJ | 08730 | 732/848 |
| Cedar Beach, NJ | 07758 | 732/848 |
| Clarksburg, NJ | 08510 | 609 |
| Cliffwood, NJ | 07721 | 732/848 |
| Cliffwood Beach, NJ | 07735 | 732/848 |
| Colts Neck, NJ | 07722 | 732/848 |
| Cream Ridge, NJ | 08514 | 609 |
| Deal, NJ | 07723 | 732/848 |
| Deal Park, NJ | 07723 | 732/848 |
| Earle Naval Weapons Station, NJ | 07722 | 732/848 |
| East Freehold, NJ | 07728 | 732/848 |
| East Keansburg, NJ | 07734 | 732/848 |
| Eatontown, NJ | 07724 | 732/848 |
| 07799 | 732/848 | |
| Elberon, NJ | 07740 | 732/848 |
| Elberon Park, NJ | 07755 | 732/848 |
| Englishtown, NJ | 07726 | 732/848 |
| Fair Haven, NJ | 07704 | 732/848 |
| Farmingdale, NJ | 07727 | 732/848 |
| Fort Hancock, NJ | 07732 | 732/848 |
| Fort Monmouth, NJ | 07703 | 732/848 |
| Freehold, NJ | 07728 | 732/848 |
| Gateway National Recreation, NJ | 07732 | 732/848 |
| Georgia, NJ | 07728 | 732/848 |
| Hazlet, NJ | 07730 | 732/848 |
| Highlands, NJ | 07732 | 732/848 |
| Holmdel, NJ | 07733 | 732/848 |
| Holmdel Village, NJ | 07733 | 732/848 |
| Howell, NJ | 07731 | 732/848 |
| Ideal Beach, NJ | 07734 | 732/848 |
| Imlaystown, NJ | 08526 | 609 |
| Interlaken, NJ | 07712 | 732/848 |
| Jersey Central Power Light, NJ | 07709 | 732/848 |
| Jerseyville, NJ | 07728 | 732/848 |
| Keansburg, NJ | 07734 | 732/848 |
| Keyport, NJ | 07735 | 732/848 |
| Lake Como, NJ | 07719 | 732/848 |
| Leonardo, NJ | 07737 | 732/848 |
| Lincroft, NJ | 07738 | 732/848 |
| Little Silver, NJ | 07739 | 732/848 |
| Little Silver Point, NJ | 07739 | 732/848 |
| Loch Arbour, NJ | 07711 | 732/848 |
| Locust, NJ | 07760 | 732/848 |
| Long Branch, NJ | 07740 | 732/848 |
| Manalapan, NJ | 07726 | 732/848 |
| Manasquan, NJ | 08736 | 732/848 |
| Marlboro, NJ | 07746 | 732/848 |
| Matawan, NJ | 07747 | 732/848 |
| Middletown, NJ | 07748 | 732/848 |
| Millhurst, NJ | 07728 | 732/848 |
| Millstone, NJ | 08510 | 609 |
| 08535 | 732/848 | |
| Monmouth, NJ | 07724 | 732/848 |
| Monmouth Beach, NJ | 07750 | 732/848 |
| Monmouth Hills, NJ | 07732 | 732/848 |
| Monmouth Park, NJ | 07757 | 732/848 |
| Morganville, NJ | 07751 | 732/848 |
| Navesink, NJ | 07752 | 732/848 |
| Neptune, NJ | 07753 | 732/848 |
| 07754 | 732/848 | |
| Neptune City, NJ | 07753 | 732/848 |
| New Monmouth, NJ | 07748 | 732/848 |
| North J Natural Gas Co, NJ | 07715 | 732/848 |
| North Middletown, NJ | 07748 | 732/848 |
| Oakhurst, NJ | 07755 | 732/848 |
| Ocean, NJ | 07712 | 732/848 |
| Ocean Grove, NJ | 07756 | 732/848 |
| Oceanport, NJ | 07757 | 732/848 |
| Perrineville, NJ | 08535 | 732/848 |
| Phalanx, NJ | 07722 | 732/848 |
| Port Monmouth, NJ | 07758 | 732/848 |
| Port-au-Peck, NJ | 07757 | 732/848 |
| Red Bank, NJ | 07701 | 732/848 |
| 07702 | 732/848 | |
| 07703 | 732/848 | |
| 07704 | 732/848 | |
| 07709 | 732/848 | |
| Roosevelt, NJ | 08555 | 609 |
| Rumson, NJ | 07760 | 732/848 |
| Sands Point, NJ | 07757 | 732/848 |
| Sandy Hook, NJ | 07732 | 732/848 |
| Sea Bright, NJ | 07760 | 732/848 |
| Sea Girt, NJ | 08750 | 732/848 |
| Shark River Hills, NJ | 07753 | 732/848 |
| Shark River Manor, NJ | 07719 | 732/848 |
| Shrewsbury, NJ | 07702 | 732/848 |
| Shrewsbury Township, NJ | 07724 | 732/848 |
| South Belmar, NJ | 07719 | 732/848 |
| Spring Heights, NJ | 07762 | 732/848 |
| Spring Lake, NJ | 07762 | 732/848 |
| Spring Lake Heights, NJ | 07762 | 732/848 |
| Strathmore, NJ | 07747 | 732/848 |
| Tennent, NJ | 07763 | 732/848 |
| Tinton Falls, NJ | 07701 | 732/848 |
| 07712 | 732/848 | |
| 07724 | 732/848 | |
| 07727 | 732/848 | |
| 07753 | 732/848 | |
| Union Beach, NJ | 07735 | 732/848 |
| Upper Freehold, NJ | 08501 | 609 |
| Upper Freehold Township, NJ | 08514 | 609 |
| Vail Homes, NJ | 07724 | 732/848 |
| Vanderburg, NJ | 07722 | 732/848 |
| Wall, NJ | 07719 | 732/848 |
| 07727 | 732/848 | |
| 07731 | 732/848 | |
| 07753 | 732/848 | |
| 07762 | 732/848 | |
| 08736 | 732/848 | |
| 08750 | 732/848 | |
| Wanamassa, NJ | 07712 | 732/848 |
| Wayside, NJ | 07712 | 732/848 |
| West Allenhurst, NJ | 07711 | 732/848 |
| West Belmar, NJ | 07719 | 732/848 |
| West End, NJ | 07740 | 732/848 |
| West Keansburg, NJ | 07734 | 732/848 |
| West Long Branch, NJ | 07764 | 732/848 |
| Westboro, NJ | 07701 | 732/848 |
| Wickatunk, NJ | 07765 | 732/848 |