Extreme points of U.S. states
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Extreme points are portions of a region which are further north, south, east, or west than any other. This is a list of extreme points in U.S. states.
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Alabama | Approx. 6 miles NW of Waterloo, Lauderdale County, in the far NW corner of the state | Sand Island, Mobile County | Approx. 8 miles SE of Fort Mitchell, in Russell County on the Georgia border | Southern third of the Mississippi state line, ending near Melvin, Choctaw County |
| Alaska | Point Barrow (also the northernmost point in the United States) | Nitrof Point, on Amatignak Island in the Aleutians | Misty Fjords National Monument | Attu Island, in the Aleutians (also the westernmost point in the United States) |
| Arizona | Western two-thirds of the northern border with Utah; formed by the 37th parallel | Eastern third of the southern border with Mexico, running from west of Nogales to the New Mexico border | Eastern border with New Mexico | West of San Luis, Yuma County |
| Arkansas | Northern border with Missouri | On the Mississippi River , approx. 3 miles (5 km) SE of Readland, Chicot County | Near Huffman, Mississippi County | NW corner of the state on Highway 43 NNW of Maysville at Corner Stone tri-state monument (MO-AR-OK) across
road from store on Missouri side. |
| California | Northern border with Oregon; formed by the 42nd parallel | Border Field State Park in Imperial Beach, San Diego County | About three miles south of Parker Dam, San Bernardino County (directly across from Buckskin Mountain State Park, AZ) | Cape Mendocino, Humboldt County |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Colorado | Northern border with Wyoming; formed by the 41st parallel | Southern border with New Mexico, near Chromo (approximately 36.99250°N) | Eastern border with Kansas and Nebraska | Western border with Utah |
| Connecticut | Near the NW corner of the state | Great Captain Island , western Long Island Sound | Near the NE corner of the state | Approx. 1 mile NW of I-684 , Fairfield County (near the intersection of High Hill Road and King Street) |
| Delaware | Pennsylvania border, near Brandywine, New Castle County | Southern border with Maryland | On State Route 1, between Fenwick Island and South Bethany, Sussex County | On the border with Maryland, 1.5 miles south of the MD-DE-PA tri-point, see Arc Line in the article The Wedge (border) |
| Florida | Western third of northern border with Alabama; formed by the 31st parallel | Key West (also the southernmost point of the contiguous 48 States) | Beach opposite Lake Worth, Palm Beach County | On the Perdido River approx. 12 miles WSW of Walnut Hill, Escambia County |
| Georgia | Eastern section of northern border with North Carolina, from North/South Carolina intersection to near Dillard, Rabun County | On the St. Mary's River , approx. 5 miles NE of Macclenny, Florida | Tybee Island , Chatham County | NW corner of the state, approx. 7 miles south of Jasper, Tennessee |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Hawaii | Kure Island | Ka Lae (south cape), Hawaii County (also the southernmost point in the United States) | Cape Kumukahi, Hawaii County | Kure Island |
| Idaho | Northern border with Canada; formed by the 49th parallel | Southern border with Utah and Nevada; formed by the 42nd parallel | Eastern border with Wyoming | On the Snake River, across from Huntington, Oregon |
| Illinois | NW corner of the state, near East Dubuque, Jo Daviess County | Fort Defiance State Park, Alexander County | On the Wabash River, opposite Vincennes, Indiana | Lock & Dam No. 20 on the Mississippi River, near Meyer, Adams County |
| Indiana | Northern border with Michigan | On the Ohio River, opposite Uniontown, Kentucky | On the Ohio River, approx. 2 miles NE of Patriot, Switzerland County | On the Wabash River, opposite New Haven, Illinois |
| Iowa | Northern border with Minnesota and South Dakota | At the mouth of the Des Moines River, near Keokuk, Lee County | On the Mississippi River, between Clinton and Sabula | On the Big Sioux River, approx. 1 mile west of Westfield, Plymouth County |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Kansas | Northern border with Nebraska | Southern border with Oklahoma | On the Missouri River, within Kansas City, Kansas, at the GM Fairfax Assembly Plant, formerly the Fairfax Airport | Western border with Colorado |
| Kentucky | On the Ohio River, opposite North Bend, Ohio | On Kentucky Lake at the Tennessee border, approx. 10 miles SE of New Concord, Calloway County | On the Tug Fork River at the intersection with Virginia and West Virginia, Pike County | On the Ohio River, due south of New Madrid, Missouri, see Kentucky Bend |
| Louisiana | NW corner of the state, near Zylks, Caddo Parish | At the mouth of the Mississippi River, approx. 14 miles south of Venice, Plaquemines Parish | Chandeleur Islands | On the Toledo Bend Reservoir, approx. 5 mi. NW of Logansport, De Soto Parish |
| Maine | Estcourt Station, opposite Pohenegamook, Quebec | Cedar Island Ledge, York County | Quoddy Head (also the easternmost point in the United States) | Intersection with New Hampshire and Quebec, Oxford County |
| Maryland | Northern border with Pennsylvania | Cedar Island W.M.A. | On the Atlantic Ocean at the Maryland-Delaware state line | SW corner of the Maryland Panhandle, approx. 10 miles south of Gnegy Church, Garrett County |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Massachusetts | Approx. 1 mile NW of Salisbury Plains, Essex County | Approx. 4 miles WSW of Siasconset, Nantucket Island | Nauset Light Beach, Cape Cod National Seashore , Barnstable County | Near Alander Mountain, Berkshire County |
| Michigan | Point on Passage Island, within Isle Royale National Park | Intersection of Michigan, Indiana, and Ohio borders, approx. 5 miles SW of Camden, Hillsdale County | Port Huron, St. Clair County | Mouth of the Montreal River along Wisconsin state line, Gogebic County |
| Minnesota | Angle Inlet, Lake of the Woods County (also the northernmost point in the continguous 48 states) | Southern border with Iowa | Pigeon Point, Cook County | Near St. Vincent, Minnesota |
| Mississippi | Central half of the northern border with Tennessee | Approx. 2 miles SE of Ansley, Hancock County | Near Eastport, Tishomingo County | On the Mississippi River, approx. 7 miles west of Pinckneyville, Wilkinson County |
| Missouri | On the Des Moines River, immediately north of the Battle of Athens State Historic Site, Clark County | Southern border of the Missouri Bootheel | On the Mississippi River, approx. 2 miles SE of Cairo, Illinois | On the Missouri River, immediately south of the intersection of Missouri, Iowa, and Nebraska state lines, Atchison County |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Montana | Northern border with Canada; marked by the 49th parallel | In the Beaverhead National Forest, approx. 25 miles SW of Lima (as the crow flies), Beaverhead County | Eastern border with North and South Dakota | "Straight" portion of the western border with Idaho, extending from the Canadian border to approx. 8 miles SW of Heron, Sanders County |
| Nebraska | "Straight" portion of the northern border with South Dakota, from the west bank of the Missouri River to the Wyoming state line (marked by the 43rd parallel) | Southern border with Kansas | SE corner of the state, in the Iowa Indian Reservation, Richardson County | Western border of the state with Wyoming |
| Nevada | Northern border with Idaho and Oregon; marked by the 42nd parallel | On the Colorado River , at the intersection with Arizona and California | Eastern border with Arizona and Utah | Western border with California north of Lake Tahoe |
| New Hampshire | Intersection with Maine and Quebec | Approx. 1 mile NNE of Dracut, Massachusetts | Inhabited: Star Island, Isles of Shoals; Uninhabited: Anderson's Ledge, Isles of Shoals (both are part of the Town of Rye.) | On the Connecticut River , opposite Brattleboro, Vermont. (The entire river is part of New Hampshire.) |
| New Jersey | On the Delaware River, opposite Port Jervis, New York (latitude 41.36 North) | Cape May Point State Park, Cape May County (latitude 38.93 North) | On the Hudson River in Alpine, Bergen County (longitude 73.90 West) | In the Killcohook National Wildlife Refuge (longitude 75.56 West). NJ and Delaware share a short land border in this area. |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| New Mexico | Northern border with Colorado | Southern border of New Mexico's "bootheel" with Mexico, Hidalgo County | Eastern border with Oklahoma (not Texas) | Western border with Arizona |
| New York | Robert Moses State Park, Barnhart Island, St. Lawrence County (latitude 45.01 North) | Southern tip of Staten Island, Richmond County (latitude 40.50 North) | Montauk Point, Suffolk County (longitude 71.86 West) | Western (not southern) border with Pennsylvania (longitude 79.76 West) |
| North Carolina | Intersection of northern border with Virginia and the Atlantic Ocean | Cape Fear, Brunswick County | Rodanthe, Dare County | SW corner of the state, Cherokee County |
| North Dakota | Northern border with Canada (formed by the 49th parallel) | Southern border with South Dakota | On the Bois de Sioux River, approx. 3 miles NE of Fairmount, Richland County | Western border with Montana |
| Ohio | On Lake Erie , approx. 3 miles NE of Conneaut, Ashtabula County | Burlington, Lawrence County | Eastern border with Pennsylvania, from Lake Erie to the Ohio River | At the mouth of the Great Miami River, Hamilton County |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Oklahoma | Northern border with Kansas | On the Red River, at the intersection of the Arkansas and Texas state lines, McCurtain County | Extreme N LeFlore County at Arkoma at N end of State Line Rd/Southern edge of Navy Yard bordering Fort Smith | Western border with New Mexico along 103 deg W, also known as the Cimarron Meridian |
| Oregon | Sand Island, Clatsop County (latitude 46.29 North) | Southern border with California and Nevada (marked by the 42nd parallel) | On the Snake River, Hells Canyon National Recreation Area, approx. 10 miles (as the crow flies) west of Lucile, Idaho (longitude 116.46 West) | Cape Blanco, Curry County (longitude 124.57 West) |
| Pennsylvania | On Lake Erie, approx. 2 miles north of State Line, Erie County | Southern border with Maryland and West Virginia | Matamoras, Pennsylvania | Western border with Ohio and West Virginia |
| Rhode Island | NE corner of the state, in Cumberland, Rhode Island | Southern tip of Block Island | SE corner of the state; intersection of Massachusetts state line and Rhode Island Sound, near Quicksand Pond | Napatree Point |
| South Carolina | Approx. 10 miles south of Flat Rock, North Carolina | Cockspur Island, Jasper County near Georgia coast (20 miles south of Beaufort | Intersection of the North Carolina border and the Atlantic Ocean near Myrtle Beach | Oconee County, near Georgia at Chattooga River at the junctions of Tugaloo and Savannah Rivers nearby Whitewater Falls |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| South Dakota | Northern border with North Dakota | Dakota Dunes, South Dakota, slightly WSW of the intersection of the Big Sioux and Missouri Rivers, Union County | On the Big Sioux River, 1 km Southeast of Hudson, South Dakota, Lincoln County | Western border with Montana and Wyoming |
| Tennessee | NE corner of the state, near the intersection with North Carolina and Virginia | SW corner of the state, at the intersection of the Mississippi state line and the Mississippi River | NE corner of the state | SW corner of the state |
| Texas | Northern border with the Oklahoma Panhandle | Approx. 5 miles SE of Brownsville, on the Rio Grande | On the Sabine River , SW of Burr Ferry, Louisiana | 0.6 miles west of the Rio Grande, near Borderland, El Paso County |
| Utah | Northern border with Idaho; formed by the 42nd parallel | Southern border with Arizona | Eastern border with Colorado | Western border with Nevada |
| Vermont | Northern border with Quebec roughly follows the 45th parallel, mostly running about 1km to 2km north of the parallel. The northernmost segment of the border is in the town of Highgate, Vermont | On the Connecticut River , at the intersection of Vermont, Massachusetts, and New Hampshire | On the Connecticut River, approx. 1 mile east of Beecher Falls, Essex County | On the East Bay of Lake Champlain , approx. 2 miles north of Whitehall, New York |
| State | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| Virginia | Approx. 3 miles NW of Unger, West Virginia | Approx. 1/2 mile west of Whitetop, Grayson County | Intersection of Maryland-Virginia (Eastern Shore ) state line and Atlantic Ocean, Assateague Island National Seashore , Accomack County | Approx. 2 miles E of Middlesboro, Kentucky, in Cumberland Gap National Historical Park |
| Washington | Northern border with Canada, formed by the 49th parallel | Reed Island, Clark County (latitude 45.55 North) | Intersection of Washington, Oregon and Idaho state lines (longitude 116.92 West) | Bodelteh Islands, Clallam county (longitude 124.77 West) (also thewesternmost point in the contiguous 48 states) |
| West Virginia | Intersection of West Virginia-Pennsylvania state line and the Ohio River | Approx. 1 mile NW of Amonate, Virginia | Intersection of West Virginia-Virginia state line and the Potomac River | On the Tug Fork River, approx. 5 miles NNW of Louisa, Kentucky |
| Wisconsin | Devils Island, Apostle Islands National Lakeshore | Intersection of border with Illinois and Lake Michigan | Rock Island, Door County | On the St. Croix River, 1/4 mile south of Polk-Burnett county line |
| Wyoming | Northern border with Montana; formed by the 45th parallel | Southern border with Colorado and Utah; formed by the 41st parallel | Eastern border with Nebraska and South Dakota | Western border with Idaho and Utah |
| State / Territory | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
| American Samoa | Leaumasili Point, Olosega Island | Steps point, Tutuila Island | Area of land near airport of Tau island | Cape Taputapu, Tutuila Island |
| District of Columbia | Near the intersection of E Beach Dr NW and Verbena St NW | Western end of Oxon Hill Farm | Intersection of Eastern Avenue NE and Southern Avenue NE | Western side of C&O Canal National Historical Park, about 2/3 of the way up the island |
| Federated States of Micronesia (Independent Associated State since 1986) | Ulithi Atoll | Kapingamarangi Atoll | Kosrae Island | Ngulu Atoll |
| Guam | Ritidian Point | Aga point (mainland), Cocos Island (offshore) | Pati point | Udall Point (formerly Orote Point) |
| Guantanamo Bay (Naval Base) | Eastern 2/3 of the northern border with the rest of the bay | Winward Point | Eastern border of longitude near 75º05' | Southern 1/3 of Guantanamo Bay's western border (a longitude line west of Leeward Point Field) |
| Northern Mariana Islands | Northern tip of Farallon de Pajaros | Southern tip of Rota island | Eastern tip of Farallon de Medinilla | Western tip of Farallon de Pajaros |
| Puerto Rico | Area of land near San Antonio | Southern tip of Isla Caja de Muertos | Eastern tip of Isla Culebrita | Western tip of Isla Mona |
| U.S. Virgin Islands | Small island off the north coast of Hans Lollik Island | Southwest Cape, St. Croix island | Udall Point (AKA East Point), St. Croix Island | Western tip of Savana Island |
| Territory | Northernmost point | Southernmost point | Easternmost point | Westernmost point |
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