Caroline County is a United States county located in the eastern part of the Commonwealth of Virginia. The northern boundary of the county borders on the Rappahannock River, notably at the historic town of Port Royal. The Caroline county seat is Bowling Green.

Caroline County was established in 1728 and was named in honor of the British queen Caroline of Ansbach. Developed in the colonial and antebellum years for tobacco and later mixed crops, worked by generations of enslaved African Americans, such agriculture gradually became less important. In the 20th century it was known for thoroughbred horse farms. It is the birthplace of the renowned racehorse Secretariat, winner of the 1973 Triple Crown: the Kentucky Derby, Preakness Stakes and Belmont Stakes.

As of the 2020 census, the county population was 30,887. It has doubled in the last fifty years. Caroline is now considered part of the Greater Richmond Region and benefited by suburban and related development.

According to the U.S. Census Bureau, the county has a total area of 537 square miles (1,390 km2), of which 528 square miles (1,370 km2) is land and 9 square miles (23 km2) (1.7%) is water. Caroline County is 30 miles (48 km) north of the capital in Richmond and 32 miles (51 km) south of Fredericksburg.

Caroline County is bounded on the north by Spotsylvania and King George counties; on the south by Hanover County; on the east by King William, King and Queen, and Essex counties; and on the west by Spotsylvania County.

The county is home to a quarry that has proved a rich source of pre-historic whale and shark skeletons. The whole county is located in what was in ancient times land under an ocean. It is known to paleontologists as the middle Miocene Calvert Formation of Virginia. A whale skeleton discovered there in 1990 was proved to be a new whale species (see Eobalaenoptera harrisoni).

Caroline County is served by Interstate 95, US 1 and US 301. These three routes are important for inter-regional travel.

Adjacent counties

  • King George County – north
  • Hanover County – south
  • King William County – east
  • King and Queen County – east
  • Essex County – east
  • Spotsylvania County – northwest

The town of Bowling Green was earlier known as New Hope Village. One of the earliest stage roads in the colony ran through the area from Richmond to the Potomac River, where a ferry crossing was operated to Charles County, Maryland. One of the first stage lines in America to maintain a regular schedule operated along this road. New Hope Tavern was built along the road prior to 1700, and the area around it became known as New Hope Village.

The town was renamed for “Bowling Green”, the plantation of town founder, Colonel John Hoomes. He donated considerable land when the community became the county seat in 1803. The Bowling Green estate took its name from the Hoomes family’s ancestral seat in England, “Bolling Green”. Such naming was a tradition in the Colony of Virginia. The Bowling Green estate was the site of one of the first tracks for horse racing in North America.

The manor home of the Hoomes family, built on plantation land patented by Major Thomas Hoomes in 1667, was constructed in 1741. A prominent town landmark, it is one of the oldest residences in original condition in Virginia. Bowling Green Farm is now on the Virginia Landmarks Register and the National Register of Historic Places.

The present Caroline County Court House was built in 1835, and Bowling Green was incorporated as a town in 1837. The town is best known as the “cradle of American horse racing”. It also is the site of the second oldest Masonic Lodge in the nation.

The Richmond, Fredericksburg and Potomac Railroad (chartered in 1834) was built through nearby Milford (just west of town) and reached Fredericksburg by 1837. This important rail link between several major northern railroads at Washington, D.C. and other major southern railroads at Richmond was partially owned by the Commonwealth of Virginia for years. It was purchased by CSX Transportation in the 1990s. A major freight railroad line for north–south traffic, the corridor also carries many Amtrak trains. Although the closest Virginia Railway Express (VRE) commuter passenger rail service to Northern Virginia is accessed at Spotsylvania, future VRE extensions southward may include service at Milford. This would increase convenience for Bowling Green and the surrounding area.

Bowling Green is located along Virginia State Route 2, one of the two earlier highways between Richmond and Fredericksburg. In later years, U.S. Route 301 was built through the area, connecting Richmond with Baltimore, Maryland by what was effectively an eastern bypass of the Washington, D.C. area. A new road, Virginia State Route 207, was established from Bowling Green west to Carmel Church. It intersects Interstate 95 and U.S. Route 1, major north–south highways.

In 1941, the United States government acquired 77,000 acres (310 km2) of Caroline County to the north and east of Bowling Green. It established the A.P. Hill Military Reservation. Known in modern times as Fort A.P. Hill, the facility was named for Virginia military hero of the United States Army and later Confederate General Ambrose Powell Hill. Thousands of regular military and reserve troops undergo training at the complex each year. It was also the site of national Jamboree gatherings of the Boy Scouts of America for 29 years between 1981 and 2010.

Port Royal is one of the area’s more historic towns. It was first established in 1652 as a port on a navigable portion of the Rappahannock River during an era when waterways were the major method of transportation of people and property in the British Colony of Virginia. It was an important point for export of tobacco, Virginia’s cash crop.

Local tradition holds that Port Royal was named after the Roy family. Dorothy Roy and her husband John owned a warehouse chartered by the crown, a ferry service across the Rappahannock River to King George County and a tavern. In the 21st century, the chimneys of the Roy house are preserved landmarks in the town.

Port Royal was incorporated as a town in 1744. The “town green”, upon which stands today the Town Hall and the firehouse, was forever reserved “for public and civic use”.

Shipping of property from the port began to decline after completion of railroads which began in Virginia in the 1830s. The last scheduled passenger ship service ended in 1932, supplanted by highways. However, Port Royal was served by the new highways which became U.S. Route 17 and U.S. Route 301, with their crossroads at Port Royal.

There are two incorporated towns in Caroline County. They are:

  • Bowling Green
  • Port Royal

Census-designated places
There are two unincorporated census-designated places in Caroline County:

  • Lake Caroline
  • Lake Land’Or

Nearby Communities