Early settlers

According to missionary reports, several thousand Hurons occupied present-day West Virginia, including the Eastern Panhandle region, during the late 16th and early 17th centuries. During the 17th century, the Iroquois Confederacy (then consisting of the Mohawk, Onondaga, Cayuga, Oneida, and Seneca tribes) drove the Hurons from the state. The Iroquois Confederacy was headquartered in New York and was not interested in occupying present-day West Virginia. Instead, they used it as a hunting ground during the spring and summer months.

During the early 18th century, West Virginia's Eastern Panhandle region was inhabited by the Tuscarora. They eventually migrated northward into New York and, in 1712, became the sixth nation formally admitted into the Iroquois Confederacy. The Eastern Panhandle region was also used as a hunting ground by several other Indian tribes, including the Shawnee (then known as the Shawanese) who resided near present-day Winchester, Virginia and Moorefield, West Virginia until 1754 when they migrated into Ohio. The Mingo, who resided in the Tygart Valley and along the Ohio River in present-day West Virginia's Northern Panhandle region, and the Delaware, who lived in present-day eastern Pennsylvania, New Jersey and Delaware, but had several autonomous settlements as far south as present-day Braxton County, also used the area as a hunting ground.

Following the French and Indian War, the Mingo retreated to their homes along the banks of the Ohio River and were rarely seen in the Eastern Panhandle region. Although the French and Indian War was over, many Indians continued to view the British as a threat to their sovereignty and continued to fight them. In the summer of 1763, Pontiac, an Ottawa chief, led raids on key British forts in the Great Lakes region. Shawnee chief Keigh-tugh-qua, also known as Cornstalk, led similar attacks on western Virginia settlements, starting with attacks in present-day Greenbrier County and extending northward to Berkeley Springs, and into the northern Shenandoah Valley. By the end of July, Indians had destroyed or captured all British forts west of the Alleghenies except Fort Detroit, Fort Pitt, and Fort Niagara. The uprisings were ended on August 6, 1763, when British forces, under the command of Colonel Henry Bouquet, defeated Delaware and Shawnee forces at Bushy Run in western Pennsylvania.

During the American Revolutionary War (1775–1783), the Mingo and Shawnee, headquartered at Chillicothe, allied themselves with the British. In 1777, a party of 350 Wyandots, Shawnees and Mingos, armed by the British, attacked Fort Henry, near present-day Wheeling. Nearly half of the soldiers manning the fort were killed in the three-day assault. The Indians then left the area celebrating their victory. For the remainder of the war, smaller raiding parties of Mingo, Shawnee, and other Indian tribes terrorized settlers throughout northern and eastern West Virginia. As a result, European settlement throughout present-day West Virginia, including the Eastern Panhandle, came to a virtual standstill until the war's conclusion.

Following the war, the Mingo and Shawnee, once again allied with the losing side, returned to their homes. As the number of settlers in present-day West Virginia began to grow, both the Mingo and Shawnee moved further inland, leaving their traditional hunting ground to the white settlers.

17th-century European explorers

In 1670, John Lederer, a German physician and explorer employed by Sir William Berkeley, colonial governor of Virginia, became the first European to set foot in present-day Berkeley County; their safety was not guaranteed. John Howard and his son also passed through present-day Berkeley County a few years later, and discovered the valley of the South Branch Potomac River at Green Spring.

The 18th century

The next known explorer to traverse the county was John Van Meter (1683–1745) in the 1730s. He came across the Potomac River, at what is now known as Shepherdstown, then he made his way to the South Branch Potomac River. In 1726, Morgan Morgan moved from Delaware and founded the first permanent English settlement of record in West Virginia on Mill Creek near the present-day Bunker Hill in Berkeley County. The state of West Virginia erected a monument in Bunker Hill commemorating the event, and placed a marker at Morgan's grave, which is located in a cemetery near the park. Morgan Morgan and his wife, Catherine Garretson, had eight children. His son, Zackquill Morgan, later founded present-day Morgantown.

In 1730, John Van Meter, with his brother Isaac (1692–1757),^[9] secured a patent for 40,000 acres (160 km²) at the South Branch Potomac River, much of it in present-day Berkeley County, from Virginia's Colonial Lieutenant Governor William Gooch. Part of the land was sold the following year to Hans Yost Heydt, also known as Joist Hite or Jost Hite. In 1732, Heydt (Hite) and fifteen families set out from York, Pennsylvania, passed through present-day Berkeley County, and settled near present-day Winchester, Virginia. In 1744 Isaac Van Meter moved to a site near Moorefield — then part of Hampshire County, but now in Hardy County (see Fort Pleasant) — where he was later scalped and killed by Indians. (His brother John settled and died in Winchester, Virginia.)

In 1748, George Washington, then just sixteen years old, surveyed present-day Berkeley County for Thomas Fairfax, 6th Lord Fairfax of Cameron. He later returned to Bath (Berkeley Springs), West Virginia several times over the next several years with his half-brother, Lawrence, who was ill and hoped that the warm springs might improve his health. The springs, and their rumored medicinal benefits, attracted numerous Native Americans as well as Europeans to the area.

The 19th century

Berkeley County was reduced in size twice during the 19th century. On January 8, 1801, Jefferson County was formed out of the county's eastern section. Then, on February 9, 1820, Morgan County was formed out of the county's western section and parts of Hampshire County.

Berkeley County was strategically important to both the North and the South during the American Civil War (from 1861 to 1865). The county, and Martinsburg, its seat, lay at the northern edge of the Shenandoah Valley, and Martinsburg was important because the main line of the Baltimore and Ohio Railroad ran through it. The B&O was valuable to both armies for moving men and materiel. Increasing Martinsburg's strategic value was its proximity to the United States Arsenal and Armory at Harpers Ferry. Control over Martinsburg changed hands many times during the war, especially prior to the Battle of Gettysburg in July 1863. After Gettysburg, the city remained mostly under Union control.

Most of Berkeley County's residents were loyal to the South during the American Civil War. There were seven companies of soldiers recruited from the county: five for the Confederate Army and two for the Union Army.

Yet it was (then-Colonel) Stonewall Jackson who wrote to Robert E. Lee, "... I regret to say that in Berkeley things are growing worse, and that the threats from Union men are calculated to curb the expression of Southern feeling."^[10]

A member of the Stonewall Brigade also wrote, "We left Winchester the first of this week [in June, 1861] and came to Berkeley County, the meanest Abolition hole on the face of the earth, Martinsburg especially."^[11]

At least six hundred men from Berkeley County served in either the Confederate Army or the Union Army. When the vote for separation from Confederate Virginia was held, the majority voted for the Union creation of the state of West Virginia.

Berkeley County was also the home of Maria Isabella "Belle" Boyd, a famous spy for the Confederacy. She was born in Bunker Hill on May 9, 1844, moved to Martinsburg before 1850, and lived there until the outbreak of the war. Her espionage career began on July 4, 1861 when a band of drunken Union soldiers broke into her Martinsburg home intent on raising the United States flag over the house. As the soldiers forced their way into the house (one account has a soldier pushing Belle's mother), Belle drew a pistol and killed him. A board of inquiry exonerated her actions as justifiable homicide, but sentries were posted around the house and officers kept close track of her activities. She befriended the officers, and at least one of them, Captain Daniel Keily, shared military secrets with her. She conveyed those secrets to Confederate officers via her slave, Eliza Hopewell, who carried the messages in a hollowed-out watch case. She later moved to Front Royal, Virginia to live with an aunt. One evening in mid-May, 1862 General James Shields and his staff conferred in the parlor of the local hotel. Belle hid upstairs and overheard Shields mentioning that he had been ordered east, a move that would reduce the Union Army's strength at Front Royal. Belle reported the news to Colonel Turner Ashby, a Confederate scout. He relayed the information to General Thomas "Stonewall" Jackson, commander of the Confederate Army. After Jackson took Front Royal on May 23, he penned a note of gratitude to Belle, and named her a Captain and an honorary Aide de Camp. Belle was later arrested by the Union Army for espionage, spent a month in the Old Capitol Prison in Washington, D.C., and was freed in a prisoner exchange. In June 1863, she was arrested again for espionage by the Union Army during a visit to Martinsburg. She remained in the Old Carroll Prison in DC until December 1, 1863 when, suffering from typhoid, she was allowed to travel South to regain her strength. Later, she was running the sea blockade, was captured and under guard to Lt. Samuel Wylde Harding. He fell in love and asked Belle to marry him. She said she would if he helped her get the captains code book and let him escape. Also to join the Confederate army when he could, to all of which he agreed. Belle was escorted and deported to Canada, told if she returned she would be shot. She then went to London, while Samuel left the navy and also went to England. They had a large wedding which the future King and ambassadors attended. While there, she began a stage career and penned her memoirs. After the war, she returned to the United States, Divorced Sam, and toured the western states recounting her exploits as a spy during the war. She died in 1900 in Evansville, Wisconsin. A group from the Grand Army of the Republic (GAR) paid for her burial gown and funeral. Belle, her 3rd husband (an actor), and the GAR were in partnership.^[12]

Joining West Virginia

During the American Civil War (1861–1865), Berkeley and Jefferson counties, both lying on the Potomac River east of the mountains, with the consent of the Reorganized Government of Virginia, voted in favor of annexation to West Virginia in 1863. The occupying Federal troops in the area ensured the desired outcome. Many voters absent in the Confederate Army when the vote was taken refused to acknowledge the transfer upon their return. The Virginia General Assembly repealed the Act of Secession and in 1866 brought suit against West Virginia, asking the court to declare the counties a part of Virginia. Meanwhile, Congress, on March 10, 1866, passed a joint resolution recognizing the transfer. In 1871, the U.S. Supreme Court decided Virginia v. West Virginia,^[13] upholding the secession of West Virginia, including Berkeley and Jefferson counties, from Virginia.

In 1863, West Virginia's counties were divided into civil townships, with the intention of encouraging local government. This proved impractical in the heavily rural state, and in 1872 the townships were converted into magisterial districts.^[14] Berkeley County was divided into seven districts: Arden, Falling Waters, Gerrardstown, Hedgesville, Martinsburg, Mill Creek, and Opequon.^{[lower-roman 1]} The town of Martinsburg was originally co-extensive with Martinsburg District, but later spread into adjoining districts. Between 1990 and 2000, Berkeley County was redivided into six magisterial districts: Adam Stephens, Norborne, Potomac, Shenandoah, Tuscarora, and Valley.^[15]

Mountains and hills

• Third Hill Mountain – highest and most topographically prominent peak in the county

Sleepy Creek Mountain

North Mountain

Rivers and streams

• Potomac River
• Back Creek
• Tilhance Creek
• Cherry Run
• Meadow Branch (tributary of Sleepy Creek in Morgan County)
• Opequon Creek
• Middle Creek
• Mill Creek
• Tuscarora Creek

Agricultural land and conservation easements

As of 2017, Berkeley County had 53 farmland easements which place permanent restrictions on development, covering 5,133 acres of land, according to the Berkeley County Farmland Protection Board.^[17]

Major highways

I-81 in Berkeley County

• I-81
• US 11
• WV 9
• WV 45
• WV 51
• WV 115
• WV 901

Adjacent counties

• Washington County, Maryland (north)
• Jefferson County (southeast)
• Frederick County, Virginia (south)
• Morgan County (northwest)

2020 census

As of the 2020 census, there were 122,076 people and 50,841 households residing in the county. There were 50,868 housing units in Berkeley. The racial makeup of the county was 80.5% White, 7.7% African American, 1.2% Asian, 0.3% Native American, 2.3% from other races, and 8% from two or more races. Hispanics or Latinos of any race were 5.6% of the population.

Of the 50,841 households, 48.6% were married couples living together, 23.5% had a female householder with no spouse present, 17.6% had a male householder with no spouse present. The average household and family size was 2.96. The median age in the county was 38.5 years with 22.9% of the population under 18. The median income for a household was $71,733 and the poverty rate was 9.2%.^[23]

2010 census

As of the 2010 United States Census, there were 104,169 people, 39,855 households, and 27,881 families residing in the county.^[24] The population density was 324.4 people per square mile (125.3 people/km²). There were 44,762 housing units at an average density of 139.4 units per square mile (53.8 units/km²).^[25] The racial makeup of the county was 87.8% white, 7.1% black or African American, 0.8% Asian, 0.3% American Indian, 1.2% from other races, and 2.6% from two or more races. Those of Hispanic or Latino origin made up 3.8% of the population.^[24] In terms of ancestry, 27.0% were German, 14.8% were Irish, 12.3% were English, 10.2% were American, and 5.1% were Italian.^[26]

Of the 39,855 households, 35.7% had children under the age of 18 living with them, 52.3% were married couples living together, 12.0% had a female householder with no husband present, 30.0% were non-families, and 23.4% of all households were made up of individuals. The average household size was 2.59 and the average family size was 3.04. The median age was 37.6 years.^[24]

The median income for a household in the county was $52,857 and the median income for a family was $64,001. Males had a median income of $45,654 versus $34,239 for females. The per capita income for the county was $25,460. About 7.0% of families and 10.1% of the population were below the poverty line, including 13.2% of those under age 18 and 6.5% of those age 65 or over.^[27]

2000 census

As of the census^[28] of 2000, there were 75,905 people, 29,569 households, and 20,698 families residing in the county. The population density was 236 people per square mile (91 people/km²). There were 32,913 housing units at an average density of 102 units per square mile (39 units/km²). The racial makeup of the county was 92.74% White, 4.69% Black or African American, 0.25% Native American, 0.46% Asian, 0.02% Pacific Islander, 0.56% from other races, and 1.28% from two or more races. 1.52% of the population were Hispanic or Latino of any race.

There were 29,569 households, out of which 33.40% had children under the age of 18 living with them, 54.60% were married couples living together, 10.70% had a female householder with no husband present, and 30.00% were non-families. 24.20% of all households were made up of individuals, and 8.20% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 2.99.

In the county, the population was spread out, with 25.70% under the age of 18, 8.30% from 18 to 24, 31.30% from 25 to 44, 23.60% from 45 to 64, and 11.20% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 99.10 males. For every 100 females age 18 and over, there were 96.40 males.

The median income for a household in the county was $38,763, and the median income for a family was $44,302. Males had a median income of $32,010 versus $23,351 for females. The per capita income for the county was $17,982. About 8.70% of families and 11.50% of the population were below the poverty line, including 14.60% of those under age 18 and 10.10% of those age 65 or over.

County government

Berkeley County has an elected five member County Commission.^[29]

Berkeley County Sheriff

The Sheriff's Office operates the county jail, provides court protection, provides county building and facility security, and provides patrol and detective services for unincorporated areas of the county.^[30] Martinsburg has a municipal police department.

Berkeley County Emergency Ambulance Authority

Emergency medical services for the county are provided by career employees of the BCEAA. A third service organization with an independent agency council which includes an elected member of the county council. BCEAA is responsible for all EMS throughout the county and is separate from the volunteer fire departments in the area.

City

• Martinsburg (county seat)

Town

• Hedgesville

Census-designated places

• Falling Waters
• Inwood

Unincorporated communities

Magisterial districts

• Adam Stephen
• Norborne
• Potomac
• Shenandoah
• Tuscarora
• Valley