List of extreme points of U.S. states and territories

Template:Short description Template:Use mdy dates Template:Side box 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, territories, and the District of Columbia.

Although many borders were initially defined by treaty or other agreement to be along a specific line of latitude or longitude, inaccuracies with surveying equipment/techniques caused the surveyed lines to deviate slightly from the true boundaries. Even as equipment/techniques improved, the initial surveyed line still remains the official border, which is why the extreme points may be either side of the agreed-upon line.

File:US-Canadian border along the 49th parallel.png

The 49th parallel was agreed to be the border between the United States and British North America (later Canada) from Lake of the Woods to the Strait of Juan de Fuca in the Treaty of 1818 and Oregon Treaty. However, the true boundary line as surveyed deviates several seconds from the true parallel, as seen in this significantly exaggerated depiction

State / Territory	Northernmost point	Southernmost point	Easternmost point	Westernmost point
Alabama	Water: Tennessee border at the northwest corner of the state in Pickwick Lake northwest of Waterloo Land: Tennessee border on an unnamed island in Pickwick Lake	Sand Island (on which Sand Island Light sits)	Template:Efn Georgia border on the Chattahoochee River southeast of Fort Mitchell	Mississippi border southwest of Melvin
AlaskaTemplate:Efn	Template:EfnTemplate:Efn Point Barrow northeast of Utqiaġvik	Unnamed archipelago south of Amatignak Island in the Aleutian Islands	By direction, water: British Columbia border on the Portland Canal east of Ketchikan By direction, land: Camp Point, in the Misty Fjords National Monument Wilderness, east of Ketchikan By longitude: Pochnoi Point on Semisopochnoi Island in the Aleutian Islands	By direction: Template:Efn Peaked Island in the Aleutian Islands, west of Attu Island in the Aleutian Islands By longitude: Amatignak Island in the Aleutian Islands
American Samoa	Swains IslandTemplate:Efn Excluding disputed islands: Faumasili Point, Olosega Island	Template:Efn Rose Atoll	Rose Atoll	Swains IslandTemplate:Efn Excluding disputed islands: Luania Rocks, off Tutuila Island
Arizona	Utah border west of Oljato-Monument Valley	Sonora border west of Nogales	AZ-CO-NM-UT quadripoint	Baja California border northwest of San Luis
Arkansas	Missouri border northwest of Bella Vista	AR-MS-LA tripoint	Water: Tennessee border on the Mississippi River east of Armorel Land: Barfield Bar, an island in the Mississippi River east of Armorel	AR-MO-OK tripoint
California	Oregon border northeast of Hornbrook	Baja California border where it meets the Pacific Ocean in Border Field State Park	Template:Efn Arizona border on the Colorado River southeast of Parker Dam	Sugar Loaf Island
Colorado	Wyoming border north of Hahns Peak Village	Southern border with New Mexico south of Chromo	Kansas border east of Walsh	Utah border southwest of Paradox
Connecticut	Massachusetts border north of Salisbury	Water: New York border in Long Island Sound south of Greenwich Land: Great Captain Island	Rhode Island border southeast of Sterling	New York border northwest of Greenwich
Delaware	Pennsylvania border east of Beaver Valley	Maryland border south of Williamsville	On Fenwick Island	Maryland border southwest of Newark
District of Columbia	Near the intersection of E Beach Dr NW and Verbena St NW	Water: DC-MD-VA tripoint on the Potomac River Land: Western end of Oxon Hill Farm	Intersection of Eastern Avenue NE and Southern Avenue NE	Template:Efn DC-MD-VA tripoint on the Potomac River at Little Falls
Florida	Alabama border north of Malone	Template:Efn Ballast Key in the Mule Keys	Palm Beach Shores	Template:Efn Alabama border on the Perdido River west of Walnut Hill
Template:Flagicon Georgia	North Carolina border near GA-NC-SC tripoint	Template:Efn Florida border on the St. Marys River south of St. George	Tybee Island	AL-GA-TN tripoint
Guam	Ritidian Point	Cocos Island	Pati point	Template:Efn Point Udall
Hawaii	Kure Atoll	Template:Efn Ka Lae, Big Island	Cape Kumukahi, Big Island	Kure Atoll
Idaho	BC-ID-MT tripoint	Utah border south of Oakley	Wyoming border northeast of Soda Springs	Template:Efn Oregon border on the Snake River northwest of Weiser
Illinois	Template:Efn IL-IA-WI tripoint on Mississippi River	Template:Efn Missouri border on the Mississippi River off of Angelo Towhead, an island south of Cairo	Water: IL-MI-WI tripoint in Lake Michigan Land: Indiana border southeast of Russellville	Template:Efn Missouri border on the Mississippi River west of Lima
Indiana	Water: Michigan border in Lake Michigan north of Burns Harbor Land: Michigan border north of Granger	Template:Efn Kentucky border on the Ohio River near the IL-IN-KY border	Template:Efn Kentucky border on the Ohio River northeast of Patriot	Template:Efn Illinois border on the Wabash River west of Mt. Vernon
Iowa	Minnesota border northeast of Lake Park	Missouri border southwest of Keokuk	Water: Illinois border on the Mississippi River east of Andover Land: Unnamed island in the Mississippi River east of Andover	Template:Efn South Dakota border on the Big Sioux River southwest of Westfield
Kansas	Nebraska border near the CO-KS-NE tripoint	CO-KS-OK tripoint	Missouri border on the Missouri River within Kansas City	Colorado border near the CO-KS-NE tripoint
Kentucky	Template:Efn Ohio border on the Ohio River north of Francisville	Template:Efn Tennessee border in Kentucky Lake southeast of New Concord	West Virginia border on the shore of the Tug Fork River near the KY-VA-WV tripoint	Missouri border on the Mississippi River at the Madrid Bar in the Kentucky Bend
Louisiana	Arkansas border northwest of Ida	Unnamed island between Southwest Pass (a distributary of the Mississippi River) and West Bay, southwest of Port Eads	Chandeleur Islands	Texas border southwest of Vivian
Maine	Template:Efn Quebec border on the St. Francis River at Estcourt Station	Cedar Island Ledge, in the Isles of Shoals	Template:EfnTemplate:Efn Sail Rock, off of West Quoddy Head	ME-NH-QC tripoint
Maryland	Pennsylvania border northeast of Bowmans Addition	Water: Virginia border in Chesapeake Bay southeast of Scotland Land: Watkins Point, southwest of Crisfield	Delaware border, where it meets the Atlantic Ocean	West Virginia border southwest of Crellin
Massachusetts	New Hampshire border in Salisbury	Nantucket Island	Cape Cod National Seashore in Orleans	New York border west of Mount Washington
Michigan	Water: Ontario border in Lake Superior north of Passage Island Land: Gull Islands	IN-MI-OH tripoint	Water: Ontario border in Lake Huron northeast of Point Sanilac Land: Shore of the St. Clair River in Port Huron	Template:Efn Wisconsin border on the Montreal River where it meets Lake Superior
Minnesota	Template:EfnTemplate:Efn MB-MN-ON tripoint in Lake of the Woods	Iowa border south of Glenville	Water: MI-MN-ON tripoint in Lake Superior Land: Pigeon Point	Template:Efn North Dakota border on the Red River of the North in St. Vincent
Mississippi	Tennessee border north of Walnut	Lighthouse Point, southeast of Ansley	Alabama border on the Tennessee River northeast of Eastport	Template:Efn Louisiana border on the Mississippi River northwest of Fort Adams
Missouri	Template:Efn Iowa border on the Des Moines River northeast of Anson	Arkansas border southwest of Cardwell	Template:Efn Kentucky border on the Mississippi River northeast of Wyatt	Template:Efn Nebraska border on the Missouri River near the IA-MO-NE tripoint
Montana	British Columbia border northeast of Eureka in Glacier National Park	Idaho border at a sister of Italian Peak southwest of Lima	South Dakota border near the MT-SD-WY tripoint	Idaho border southwest of Heron
Nebraska	South Dakota border near the KS-SD-WY tripoint	Kansas border southeast of Rulo	Template:Efn MO-KS-NE tripoint on the Missouri River	Wyoming border southwest of Bushnell
Nevada	Idaho border northwest of Jackpot	Template:Efn AZ-CA-NV tripoint on the Colorado River	Utah border northeast of Montello	California border northwest of Incline Village
New Hampshire	Quebec border near the ME-NH-QC tripoint	Massachusetts border southeast of Pelham	Anderson Ledge, in the Isles of Shoals	Template:Efn Vermont border on the Connecticut River northwest of Hinsdale
New Jersey	Template:Efn NJ-NY-PA tripoint on the Delaware River in Montague Township, Sussex County	Broadway Beach in Cape May, Cape May County	Water: New York border on the Hudson River in Alpine, Bergen County Land: Station Rock, The Palisades in Alpine, Bergen County	Delaware border in the former Killcohook National Wildlife Refuge in Pennsville Township, Salem County
New Mexico	CO-NM-OK tripoint	Sonora border near the Chihuahua-New Mexico-Sonora tripoint	Oklahoma border northeast of Seneca	AZ-NM-Sonora tripoint
Template:Country data New York	Template:Efn Ontario border on the St. Lawrence River north of Robert Moses State Park - Thousand Islands	Ward's Point, Staten Island	Montauk Point, Camp Hero State Park	Water: Pennsylvania border in Lake Erie west of Dunkirk Land: Pennsylvania border west of Mina
North Carolina	NC-TN-VA tripoint	Cape Fear, Bald Head Island	Rodanthe Beach, Rodanthe	GA-NC-TN tripoint
North Dakota	Manitoba border northwest of Neche	MN-ND-SD tripoint	Template:Efn Minnesota border on the Bois de Sioux River northeast of Fairmount	Montana border west of Fortuna
Northern Mariana Islands	Farallon de Pajaros	Puntan Pona, Rota	Farallon de Medinilla	Farallon de Pajaros
Ohio	Water: OH-PA-ON tripoint in Lake Erie Land: Pennsylvania border where it meets Lake Erie	West Virginia border on the shore of the Ohio River in Burlington	Pennsylvania border north of West Hill	Indiana border west of Elizabethtown
Oklahoma	Kansas border north of Knowles	Template:Efn Gunn Lake, on the Texas border near the AR-OK-TX tripoint	Template:Efn Arkansas border on the Arkansas River east of Moffett	New Mexico border southwest of Wheeless
Oregon	Template:Efn Washington border on the Columbia River north of Sand Island	Nevada border south of Fields	Template:Efn Oregon border on the Snake River east of Imnaha	Northwest Rock, southwest of Cape Blanco
Pennsylvania	Water: NY-ON-PA tripoint, in Lake Erie Land: New York border where it meets Lake Erie	Maryland border south of Hanover	Template:Efn New York border on the Delaware River in Matamoras	Water: OH-ON-PA tripoint in Lake Erie Land: West Virginia border west of New Freeport
Puerto Rico	Shacks Beach northwest of Jobos	Isla Morillito	Punta del Este, Isla Culebrita	Isla Monito
Rhode Island	Massachusetts border northeast of Cumberland	Black Rock Point, Block Island	Massachusetts border where it meets Rhode Island Sound	Water: CT-NY-RI tripoint in Block Island Sound Land: Connecticut border on Sandy Point Island
South Carolina	North Carolina border north of Tigerville	Template:Efn Georgia border on the Savannah River southwest of Hilton Head Island	North Carolina border where it meets the Atlantic Ocean on Bird Island	Template:Efn Georgia border in Lake Yonah southwest of Long Creek
South Dakota	North Dakota border northwest of Ludlow	Template:Efn Nebraska border on the Missouri River south of Dakota Dunes	Template:Efn Iowa border on the Big Sioux River southeast of Hudson	MT-SD-WY tripoint
Tennessee	Water: Kentucky border in Kentucky Lake northwest of Dover Land: Land Between the Lakes National Recreation Area, northwest of Dover	Georgia border west of Lookout Mountain	Virginia border northeast of the NC-TN-VA tripoint	Arkansas border southwest of Memphis (west of the Mississippi River)
Texas	NM-OK-TX tripoint	Template:Efn Tamaulipas border on the Rio Grande River south of South Point	Louisiana border on the coast of the Sabine River northeast of Burkeville	New Mexico border west of Prado Verde
Template:Flagicon United States Minor Outlying Islands	Sand Island, Midway Atoll	Jarvis Island	Navassa IslandTemplate:Efn Excluding disputed islands:Template:Efn Jarvis Island	Wilkes Island, Wake IslandTemplate:Efn Excluding disputed islands: Sand Island, Midway Atoll
Utah	ID-UT-WY tripoint	Arizona border west of Oljato-Monument Valley	Utah border southeast of La Sal	Nevada border west of Enterprise
Vermont	Quebec border northwest of Berkshire	MA-NH-VT tripoint on the shore of the Connecticut River	Template:Efn New Hampshire border on the Connecticut River east of Beecher Falls	Water: New York border in Lake Champlain northwest of Bridport Land: Crane Point on Lake Champlain, northwest of Bridport
Template:Flagicon Virgin Islands (U.S.)	Pelican Cay off the north coast of Little Hans Lollik Island	Southwest Point, Saint Croix	Template:Efn Point Udall, St. Croix	Tip Rock, off of Savana Island
Virginia	West Virginia border northwest of Reynolds Store	North Carolina border southwest of Danville	Maryland border where it meets the Atlantic Ocean on Assateague Island	KY-TN-VA tripoint, in Cumberland Gap National Historical Park
Template:Country data Washington	British Columbia east of Sumas	Template:Efn Oregon border on the Columbia River south of Reed Island State Park	Template:Efn ID-OR-WA tripoint on the Snake River	Template:Efn Bodelteh Islands, northwest of Beaver
West Virginia	Template:Efn OH-PA-WV tripoint on the Ohio River	Virginia border south of Berwind	MD-VA-WV tripoint	Template:Efn Kentucky border on the Tug Fork River northwest of Fort Gay
Wisconsin	Water: Minnesota border north of the Apostle Islands in Lake Superior Land: Devils Island, Apostle Islands	Illinois border west of Sharon	Water: Michigan border in Lake Michigan east of Newport State Park Land: Fish Island	Template:Efn Minnesota border on the St. Croix River south of Benson
Wyoming	Montana border northwest of Ralston	Utah border west of Lonetree	Nebraska border southeast of Albin	Montana border at the northwest corner of the state in Yellowstone National Park

See also

• Extreme points of the United States
• Extreme points of Canadian provinces
• List of U.S. states by elevation
• Geographic centers of the United States