Category:1840 establishments in the United States

• American companies established in 1840 (7 P)

A

• 1840 establishments in Alabama (6 P)
• 1840 establishments in Arkansas (7 P)

C

• 1840 establishments in Connecticut (5 P)

F

• 1840 establishments in Florida Territory (2 P)

G

• 1840 establishments in Georgia (U.S. state) (3 P)

I

• 1840 establishments in Illinois (9 P)
• 1840 establishments in Indiana (14 P)
• 1840 establishments in Iowa Territory (21 P)

K

• 1840 establishments in Kentucky (18 P)

L

• 1840 establishments in Louisiana (23 P)

M

• 1840 establishments in Maine (7 P)
• 1840 establishments in Maryland (11 P)
• 1840 establishments in Massachusetts (11 P)
• 1840 establishments in Michigan (31 P)
• 1840 establishments in Missouri (1 P)

N

• 1840 establishments in New Hampshire (6 P)
• 1840 establishments in New Jersey (8 P)
• 1840 establishments in New York (state) (23 P)
• 1840 establishments in North Carolina (4 P)

O

• 1840 establishments in Ohio (20 P)

P

• 1840 establishments in Pennsylvania (16 P)

R

• Railway stations in the United States opened in 1840 (4 P)

S

• 1840 establishments in South Carolina (4 P)

T

• 1840 establishments in Tennessee (6 P)

V

• 1840 establishments in Vermont (6 P)
• 1840 establishments in Virginia (11 P)

W

• 1840 establishments in Washington, D.C. (3 P)
• 1840 establishments in Wisconsin Territory (7 P)