Arkansas (borders Missouri, Tennessee, Mississippi. Louisiana, Texas, and Oklahoma).
Iowa (borders Minnesota, Wisconsin, Illinois, Missouri, Nebraska, and South Dakota). Pennsylvania (borders New York, New Jersey, Delaware, Maryland, West Virginia, and Ohio).
Idaho (borders Washington, Oregon, Montana, Wyoming, Utah, and Nevada).
South Dakota (borders Montana, Wyoming, Nebraska, Iowa, Minnesota, and North Dakota).
Utah (borders Nevada, Arizona, New Mexico, Colorado, Idaho, and Wyoming). Wyoming (borders Montana, Idaho, Utah, Colorado, Nebraska, and South Dakota). Oklahoma (borders Texas, Colorado, Kansas, Missouri, Arkansas, and New Mexico). Nebraska (borders South Dakota, Iowa, Missouri, Kansas, Colorado, and Wyoming).
Idaho
Montana is the western state in the US that borders on one foreign country (Canada) and six other states (Idaho, Wyoming, North Dakota, South Dakota, and Minnesota).
Idaho touches Canada and the states of Washington, Oregon, Nevada, Utah, Wyoming, and Montana.
There are eight U.S. states each of which borders five other states. There are also two additional U.S. states each of which borders seven other states, five U.S. states and two Mexican states.Massachusetts borders Rhode Island, Connecticut, New York, Vermont & New Hampshire.Virginia borders North Carolina, Tennessee, Kentucky, West Virginia & Maryland.West Virginia borders Pennsylvania, Maryland, Virginia, Kentucky & Ohio.Ohio borders Pennsylvania, West Virginia, Kentucky, Indiana & Michigan.Georgia borders Florida, Alabama, Tennessee, North Carolina & South Carolina.Michigan borders Ohio, Indiana, Illinois, Wisconsin & Minnesota.Minnesota borders Michigan, Wisconsin, Iowa, South Dakota & North Dakota.Nevada borders Utah, Arizona, California, Oregon & Idaho.New Mexico borders the U.S. States of Arizona, Utah, Colorado, Oklahoma & Texas and the Mexican States of Chihuahua & Sonora.Arizona borders the U.S. States of California, Nevada, Utah, Colorado & New Mexico and the Mexican States of Sonora & Baja California.By the way, Utah borders six other states, Colorado, New Mexico, Arizona, Nevada, Idaho & Wyoming.
The Arctic Ocean borders the Northwest Territories.
Tennessee
Maine is the only state in the United States that is bordered by six states (New Hampshire, Vermont, Massachusetts, and New York) and one foreign country (Canada).
Ohio
Iowa is surrounded by Wisconsin to the northeast, Illinois to the east, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north.
Idaho has a border with six US States plus Canada. Oklahoma has a border with six US States. Utah has a border with six US States. Wyoming has a border with six US States.
Six states of Brazil are Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul. These six states are all in southern Brazil. They all have borders along the Atlantic Ocean.
Colorado don't have a map handy I bet if you looked at one you could figure it out yourself.