Land Area:

• Land: 3,537,436 sq miles (9,161,923 sq km)
• Water: 181,274 sq miles (469,497 sq km)
• Total: 3,718,710 sq miles (9,631,420 sq km)
• Land Area: (individual states)
• Land Area: (all countries)
• Horizontal Width: 2,680 miles
• Vertical Length: 1,582 miles
• Geographic Center: In the continental 48 states, it is a point 2 miles to the northwest of Lebanon, Kansas; with Alaska and Hawaii included, that point is near Belle Fourche, South Dakota.

Note: Maximum lengths and widths are point-to-point, straight-line measurements from a Mercator map projection, and will vary some using other map projections

Elevations:

• Highest Point:
  Mt. McKinley, (Alaska) 20,320 ft. (6,194 m).
• Highest Point: (continental 48 states)
  Mount Whitney, (California) is the highest point at 14,495ft (4,418 m)
• Lowest Point:
  Death Valley, (California)(-282 ft.) (-86 m)
• Mean Elevation: (average) 2,512 feet

Land Borders:

• Alaska, USA - Canada 1,538 miles (2,475 km)
• Canada - USA 3,145 miles (5,061 km)
• Mexico - USA 1,951 miles (3,141 km)
• Bordering Countries (2) Canada and Mexico

Land Divisions:
The U.S. is divided into 50 states and 1 district.

• States:  
  • Alabama
  • Alaska
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Connecticut
  • Delaware
  • Florida
  • Georgia
  • Hawaii
  • Idaho
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Louisiana
  • Maine
  • Maryland
  • Massachusetts
  • Michigan
  • Minnesota
  • Mississippi
  • Missouri
  • Montana
  • Nebraska
  • Nevada
  • New Hampshire
  • New Jersey
  • New Mexico
  • New York
  • North Carolina
  • North Dakota
  • Ohio
  • Oklahoma
  • Oregon
  • Pennsylvania
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • Utah
  • Vermont
  • Virginia
  • Washington
  • West Virginia
  • Wisconsin
  • Wyoming
   
• District: District of Columbia (Washington, DC)

Land: (most northern-southern-eastern-western)

• Most northern state: Alaska
• Most southern state: Hawaii
• Most eastern state: Alaska (it's true)
• Most western state: Alaska

If you exclude Alaska and Hawaii.......

• Most Northern Pt: Angle, Minnesota, at 49º 23'N
• Most Southern Pt: East Cape, Florida, at 25º 7'N
• Most Eastern Pt: West Quoddy Head, ME,
  at 66º 57'W
• Most Western Pt: Cape Alva, WA, at 124º 44

Coastlines:

• Coastlines: 12,383 miles (19,928 km)
• Atlantic coastline: 2,069 miles (3,330 km)
• Pacific coastline:+ Hawaii: 7,623 miles (12,268 km)
• Gulf of Mexico coastline: 1,631 miles (2,625 km)
• Alaska coastline: 1,060 miles (1,706 km)

Counties:

• Counties in the U.S.: 3,066
• Counties map
• Largest County: (by population) Los Angeles,
  9.2 million