Showing General Location of National System of Interstate Highways : Including All Additional Routes at Urban Areas Designated in September 1955 by United States Bureau of *
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Important places
- Albany (92)
- Allentown (9)
- Atlanta (448)
- Baltimore (390)
- Bangor (13)
- Baton Rouge (62)
- Battle Creek (5)
- Bethlehem (3)
- Birmingham (87)
- Boston (1,284)
- Bristol (7)
- Buffalo (140)
- Burlington (21)
- Butte (28)
- Camden (13)
- Chattanooga (61)
- Chicago (1,722)
- Cincinnati (193)
- Cleveland (210)
- Columbia (26)
- Columbus (57)
- Covington (5)
- Dallas (315)
- Davenport (8)
- Denver (305)
- Des Moines (39)
- Detroit (313)
- East St. Louis (5)
- Erie (18)
- Eugene (35)
- Flint (23)
- Fort Smith (18)
- Fort Worth (69)
- Gary (13)
- Grand Rapids (27)
- Great Falls (6)
- Greenville (12)
- Hammond (4)
- Harrisburg (46)
- Hartford (60)
- Holyoke (5)
- Houston (225)
- Indianapolis (101)
- Jackson (46)
- Kansas City (140)
- Kingston (11)
- Knoxville (60)
- Lake Charles (4)
- Lansing (9)
- Lincoln (32)
- Little Rock (40)
- Louisville (69)
- Macon (37)
- Manchester (6)
- Memphis (168)
- Miami (303)
- Milwaukee (150)
- Minneapolis (185)
- Moline (6)
- Monroe (8)
- Montgomery (68)
- Nashville (156)
- New Orleans (908)
- New York (7,400)
- Norfolk (35)
- Oklahoma City (45)
- Omaha (74)
- Pensacola (35)
- Peoria (15)
- Philadelphia (1,090)
- Phoenix (111)
- Pittsburgh (1,171)
- Pocatello (8)
- Portland (67)
- Portland (271)
- Portsmouth (3)
- Providence (91)
- Rapid City (11)
- Reading (13)
- Richmond (196)
- Roanoke (30)
- Rochester (76)
- Rock Island (40)
- Saginaw (9)
- Salem (16)
- San Antonio (145)
- San Francisco Bay Area (38)
- Schenectady (14)
- Seattle (804)
- Shreveport (31)
- Sioux Falls (8)
- Spartanburg (22)
- Springfield (11)
- St. Joseph (7)
- St. Louis (272)
- St. Paul (104)
- St. Petersburg (25)
- Syracuse (30)
- Tampa (87)
- Toledo (33)
- Topeka (15)
- Trenton (41)
- Troy (17)
- Tucson (85)
- Tulsa (47)
- Tuscaloosa (7)
- Utica (12)
- Vancouver (14)
- Washington (2,457)
- Wheeling (27)
- Wichita (37)
- Wilmington (19)
- Worcester (22)
Counties
- Bexar (163)
- Saginaw (9)
- Dauphin (58)
- Mercer (121)
- Greenville (13)
- Ingham (15)
- Richland (26)
- Spartanburg (27)
- Silver Bow (27)
- Minnehaha (8)
- Kent (31)
- Hampden (22)
- Erie (27)
- Onondaga (37)
- Oklahoma (49)
- Fulton (457)
- Bibb (38)
- Erie (151)
- St. Louis (275)
- Calhoun (6)
- Hamilton (65)
- Sedgwick (38)
- Lancaster (37)
- Hillsborough (18)
- Norfolk (36)
- Marion (106)
- Jefferson (101)
- Ramsey (112)
- Rensselaer (41)
- Harris (242)
- Shelby (190)
- Allegheny (1,224)
- Pulaski (44)
- Northampton (17)
- Monroe (92)
- Hennepin (234)
- Pennington (61)
- Cumberland (79)
- Worcester (41)
- Douglas (78)
- Richmond (201)
- Calcasieu (4)
- Maricopa (169)
- Portsmouth (4)
- Jackson (182)
- Hillsborough (94)
- Penobscot (20)
- Miami-Dade (358)
- Chittenden (22)
- Jefferson (78)
- Denver (307)
- Lake (16)
- Providence (103)
- Lane (43)
- Cook (1,792)
- Lucas (48)
- New York (8,072)
- Milwaukee (154)
- Clark (18)
- Oneida (38)
- Pinellas (44)
- Baltimore (440)
- Albany (100)
- Marion (25)
- Shawnee (14)
- Lehigh (20)
- Camden (21)
- Hinds (49)
- Escambia (42)
- Bannock (11)
- Sullivan (23)
- Wayne (345)
- Davidson (183)
- Tulsa (53)
- Berks (32)
- Roanoke (30)
- New Castle (22)
- Tarrant (77)
- Polk (43)
- Buchanan (7)
- Hamilton (202)
- Genesee (23)
- Tuscaloosa (11)
- Knox (66)
- Scott (9)
- District of Columbia (2,673)
- Ohio (29)
- King (831)
- St. Clair (23)
- Kenton (6)
- Caddo (32)
- Suffolk (1,359)
- Schenectady (14)
- Montgomery (73)
- Dallas (338)
- Contra Costa (56)
- Peoria (16)
- Hartford (110)
- Franklin (61)
- Multnomah (274)
- Philadelphia (1,109)
- Rock Island (42)
- East Baton Rouge (65)
- Cuyahoga (223)
- Sebastian (19)
- Orleans (933)
- Ouachita (17)
- Pima (93)
- Cascade (6)
- Ulster (36)
Regions
- Kansas (511)
- Rhode Island (430)
- Colorado (1,596)
- Connecticut (867)
- Idaho (520)
- Washington (1,134)
- Missouri (930)
- Virginia (2,431)
- Wisconsin (731)
- West Virginia (543)
- Delaware (162)
- District of Columbia (2,676)
- Maryland (1,306)
- Arizona (1,022)
- Arkansas (680)
- Nebraska (466)
- Oklahoma (380)
- South Dakota (315)
- New Hampshire (499)
- Vermont (463)
- Alabama (831)
- Indiana (687)
- Ohio (1,283)
- Tennessee (979)
- New Jersey (1,469)
- Pennsylvania (4,458)
- Massachusetts (3,085)
- Minnesota (828)
- Montana (730)
- Florida (2,551)
- Georgia (1,485)
- Oregon (944)
- California (7,435)
- Iowa (567)
- Louisiana (1,489)
- Texas (2,882)
- Mississippi (774)
- South Carolina (671)
- Illinois (2,704)
- Kentucky (814)
- Maine (1,075)
- Michigan (1,031)
- New York (9,763)
Countries
- United States (64,950)
Other geographical areas
- Ouachita Mountains (7)
- Black Hills (32)
- Columbia Plateau (47)
- Sonoran Desert (54)
- Blue Ridge Mountains (74)
- Ozark Plateau (77)
- Edwards Plateau (159)
- Allegheny Plateau (173)
- Cumberland Plateau (211)
- Gulf Of Mexico (243)
- The Bay Area (313)
- Rocky Mountains (370)
- Coast Ranges (USA) (388)
- Piedmont (USA) (1,063)
- Appalachian Mountains (1,111)
- Central Lowlands (North America) (1,334)
- Southwestern United States (1,729)
- Carolinas (2,142)
- Great Plains (2,255)
- Gulf Coast (USA) (2,573)
- Southern California (2,840)
- Upper Midwest (2,971)
- Northern California (3,440)
- Deep South (4,776)
- West Coast (USA) (5,046)
- New England (5,830)
- North Atlantic Ocean (8,812)