Mercer County Guide

Mercer County, New Jersey

Mercer County is New Jersey’s capital county — home to Trenton, Princeton, major colleges and universities, Revolutionary War history, county parks, family attractions, golf, farms, trails, and transportation connections across Central Jersey.

The county is named for Continental Army General Hugh Mercer, who died after the Battle of Princeton in 1777.

Mercer County Guide Categories

Use these county guide links to explore Mercer County by topic.

County Snapshot

Capital County

Trenton is New Jersey’s state capital and one of Mercer County’s major civic, historic, and employment centers.

College & Innovation Corridor

Princeton University, The College of New Jersey, Rider University, Mercer County Community College, Princeton Theological Seminary, Thomas Edison State University, and other schools give the county a strong education and research presence.

Parks, Farms & Trails

Mercer County combines big public recreation areas such as Mercer County Park and Mercer Meadows with historic and rural destinations such as Howell Living History Farm, Baldpate Mountain, and Terhune Orchards.

Mercer County Towns

The original NJTGO page listed Mercer County municipalities and community destinations including East Windsor, Ewing, Hamilton, Hightstown, Hopewell, Lawrence, Pennington, Princeton, Robbinsville, Titusville, Trenton, and West Windsor. The refreshed page keeps those locations while using current wording where needed.

Princeton note: the older source page listed Princeton Borough and Princeton Township separately. The refreshed guide presents Princeton as the current destination while preserving the historic context of the older list.
East Windsor Ewing Hamilton Hightstown Hopewell Borough Hopewell Township Lawrence Pennington Princeton Princeton Junction Robbinsville Titusville Trenton West Windsor

Education & Library

Colleges and Universities in Mercer County

Library

Mercer County Library System

The county library system supports local research, community programming, digital resources, reading programs, and branches serving Mercer County residents.

Mercer County Government

Mercer County is governed by a County Executive and a seven-member Board of County Commissioners. The refreshed page updates older county-government terminology to the current Board of County Commissioners wording.

County Executive

County Executive Dan Benson

Mercer County Administration Building
640 South Broad Street
P.O. Box 8068
Trenton, NJ 08650-0068

Board of County Commissioners

The Board of County Commissioners provides the county’s legislative oversight.

Current official county listing includes Terrance Stokes as Chair, Cathleen M. Lewis as Vice-Chair, and Commissioners John A. Cimino, Samuel T. Frisby Sr., Kristin L. McLaughlin, Nina D. Melker, and Lucylle R.S. Walter.

Public Information / County Administrator / Clerk to the Board

McDade Administration Building
640 South Broad Street
Trenton, NJ
609-989-6584

These offices support county public information, day-to-day administration, and board administrative functions.

Mercer County Prosecutor

Mercer County Courthouse
209 South Broad Street, Third Floor
Trenton, NJ 08650
609-989-6351

The county’s chief law enforcement officer.

County Counsel

609-989-6511

Manages legal matters for the county and represents the county in litigation.

Mercer County Sheriff

175 South Broad Street
Trenton, NJ 08608
609-989-6100

Provides specialized law enforcement support and services to local agencies and the public.

Parks, Trails & Outdoor Places

Mercer County’s original NJTGO page included a strong parks section. The refreshed guide preserves those locations and fixes legacy typos while presenting the parks in a cleaner layout.

Baldpate Mountain

Fiddlers Creek Road or Pleasant Valley Road, Titusville, NJ · 609-989-6559

The mountain offers more than 12 miles of marked natural trails for hiking and horseback riding, ranging from shorter loops to steep rocky trails.

Howell Living History Farm

70 Woodens Lane, Lambertville, NJ 08530

A 130-acre living history farm in the Pleasant Valley Rural Historic District, interpreted as a working farm from a century ago with hands-on seasonal programs.

Herrontown Woods Arboretum

Snowden Lane & Herrontown Road, Princeton, NJ

A wooded Princeton park with mature trees, rolling terrain, and hiking opportunities.

Millyard Park & South River Walk Park

Off South Clinton Avenue near Roebling Marketplace, Trenton, NJ

A Trenton riverfront setting for street fairs, small concerts, art fairs, and downtown lunch stops.

Mercer County Park

West Windsor, Hamilton, and Lawrence

More than 2,500 acres with year-round active and passive recreation opportunities.

Mercer Meadows

Keefe Road and Cold Soil Road, Hopewell and Lawrence Township

Passive recreation, walking, biking, horse trails, scenic nature areas, cross-country skiing, environmental education, farming, fishing, and wildlife observation.

John A. Roebling Park

Trenton-Hamilton Marsh area

A 257-acre natural park in an urban setting with freshwater marsh, tidal Delaware River connection, and Spring Lake.

Rosedale Park

Off Federal City Road, Hopewell Township, NJ · 609-448-3694

472 acres with a 38-acre stocked lake, playgrounds, family picnic areas, boating/canoeing with non-gasoline engines, and reservable recreation areas.

Sports & Recreation

Family / Outdoor Fun

  • Lee Turkey Farm
    201 Hickory Corner Road, East Windsor, NJ 08520 · 609-448-0629
  • Trenton Thunder / Waterfront Park
    One Thunder Road, Trenton, NJ 08611
  • Mercer County Equestrian Center
    431 Federal City Road, Pennington, NJ
  • Stony Brook-Millstone Watershed
    31 Titus Mill Road, Pennington, NJ 08534
  • Terhune Orchards
    330 Cold Soil Road, Princeton, NJ 08540

Hockey & Skating

Mercer County Skating Center

Regional hockey links preserved from the original page:

Golf

  • Bunker Hill Golf Course — 220 Bunker Hill Rd, Princeton, NJ 08540 · 908-359-6335
  • Cranbury Golf Course — 49 South Field Rd, West Windsor, NJ 08550 · 609-799-0341
  • Greenacres Country Club — 2170 Lawrenceville Rd, Lawrenceville, NJ 08648 · 609-896-0276
  • Hopewell Valley Golf Club — 114 Pennington Hopewell Rd, Hopewell, NJ 08525 · 609-466-9070
  • Lawrenceville School Golf Course — Route 206, Lawrenceville, NJ 08648 · 609-896-1481
  • Mercer Oaks Golf Course — 785 Village Rd W, West Windsor, NJ 08550 · 609-936-9603
  • Miry Run Country Club — 106-B Sharon Rd, Robbinsville, NJ 08691 · 609-259-1010
  • Mountain View Golf Course — Bear Tavern Rd, West Trenton, NJ 08628 · 609-882-4093
  • Peddie School Golf Course — S Main St, Hightstown, NJ 08520 · 609-490-7542
  • Princeton Country Club — 1 Wheeler Way, Princeton, NJ 08540 · 609-452-9382
  • Springdale Golf Club — 26 College Rd W, Princeton, NJ 08540 · 609-924-3198
  • Stonybrook Golf Club — Stonybrook Rd, Hopewell, NJ 08525 · 609-466-2215
  • TPC at Jasna Polana — 8 Lawrenceville Rd, Princeton, NJ 08540 · 609-688-0500
  • Trenton Country Club — 201 Sullivan Way, Trenton, NJ 08628 · 609-883-3566

Visitor Center & Planning Resources

Visit Princeton-Mercer

Princeton Regional Convention & Visitors Bureau

Visitor planning, hotels, dining, events, arts, culture, college-town destinations, and regional itineraries.

Mercer Regional Chamber of Commerce

Mercer Chamber

Business, networking, community, and regional economic resources.

Mercer County Tourism

Visit Mercer County

County visitor links include historic sites, agritourism, family fun, music, sports and recreation, outdoors and trails, arts, culture, entertainment, colleges, shopping, events, and town guides.

Related Mercer County Pages