Benld is a city in Macoupin County, Illinois, United States. The population was 1,556 at the 2010 census. The name derives from founder Benjamin L. Dorsey (d. June 19, 1895).
Dorsey was responsible for gaining the land on which the town was built and coal mining rights. When it came time to name the village, he took the combination of his first name and his middle and last initial. Benld was declared the "most difficult to pronounce" place name in the state of Illinois by Reader's Digest.
Benld is located at 39°5′37″N 89°48′15″W (39.093555, -89.804260).
According to the 2010 census, Benld has a total area of 1.06 square miles (2.75 km2), all land.
As of the census of 2000, there were 1,541 people, 676 households, and 415 families residing in the city. The population density was 1,455.9 people per square mile (561.3 per km2). There were 772 housing units at an average density of 729.4 per square mile (281.2 per km2). The racial makeup of the city was 98.25% White, 0.52% African American, 0.19% Native American, 0.45% from other races, and 0.58% from two or more races.