Columbus is near the Ohio coal and iron-fields, and has an extensive trade in coal, but its largest industrial interests are in manufactures, among which the more important are foundry and machine-shop products (1905 value, $6,259,579); boots and shoes (1905 value, $5,425,087, being more than one-sixtieth of the total product value of the boot and shoe industry in the United States, and being an increase from $359,000 in 1890); patent medicines and compounds (1905 value, $3,214,096); carriages and wagons (1905 value, $2,197,960); malt liquors (1905 value, $2,133,955); iron and steel; regalia and society emblems; steam-railway cars, construction and repairing; and oleo-margarine.
Among other important manufactures are foundry and machine shop products ($6,944,392 in 1905); flour and grist-mill products ($4,428,664); cars and shop construction and repairs by steam railways ($2,502,789); saws; waggons and carriages ($2,049,207); printing and publishing (book and job, $1,572,688; and newspapers and periodicals, $2,715,666); starch; cotton and woollen goods; furniture ($2,528,238); canned goods ($1,693,818); lumber and timber ($1,556,466); structural iron work ($1,541,732); beer ($1,300,764); and planing-mill products, sash, doors and blinds ($1,111,264).
Parkersburg is the see of a Protestant Episcopal bishop. Oil, coal, natural gas and fire-clay abound in the neighbouring region, and the city is engaged in the refining of oil and the manufacture of pottery, brick and tile, glass, lumber, furniture, flour, steel, and foundry and machine-shop products.
Foundry and machine-shop products, consisting largely of engines, boilers, metal-working machinery, wood-working machinery, pumping machinery, mining machinery and stoves, rank second among the state's manufactures; their value increased from $43,617,07 2 in 1890 to $72,399,632 in 1900, and to $94,507,691 in 1905.
The principal manufactures are hardware, foundry and machine shop products, ammunition and fire-arms (the Winchester Company), carriages and wagons, malt liquors, paper boxes and corsets.