Berthold is a city in Ward County, North Dakota, United States. The population was 454 at the 2010 census.
Berthold was founded in 1900.
Berthold is located at 48°18′58″N 101°44′9″W (48.316025, -101.735776). According to the United States Census Bureau, the city has a total area of 0.37 square miles (0.96 km2), all land.
Berthold is part of the Minot Micropolitan Statistical Area.
At the 2010 census there were 454 people in 166 households, including 120 families, in the city. The population density was 1,227.0 inhabitants per square mile (473.7/km2). There were 178 housing units at an average density of 481.1 per square mile (185.8/km2). The racial makup of the city was 98.7% White, 0.2% African American, and 1.1% from two or more races. Hispanic or Latino of any race were 1.8%.
Of the 166 households 37.3% had children under the age of 18 living with them, 63.3% were married couples living together, 5.4% had a female householder with no husband present, 3.6% had a male householder with no wife present, and 27.7% were non-families. 25.3% of households were one person and 9.6% were one person aged 65 or older.