Mineral Ridge is an unincorporated community and census-designated place in southern Trumbull and northern Mahoning counties in the U.S. state of Ohio.

Mineral Ridge was named for valuable coal deposits near the original town site.

[5] The area of Mineral Ridge was primarily a farming community, with some coal mining in the 1830s.

In the mid-1850s, John Lewis, superintendent of the Mineral Ridge Coal Mines, discovered black band iron ore beneath the layers of coal ore, leading to a boom of companies working with the blast furnaces of Brier Hill, Niles, and later, Mineral Ridge itself.

[6] The main deposit of iron for Youngstown’s growing steel industry, this iron was known as “American Scotch Pig” and “Warner’s Scotch Pig.”[6] By the late 19th century, the mining industry was largely in decline and Mineral Ridge disincorporated in 1917.