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37th Parallel North

Line across the Earth
37th parallel north

The 37th parallel north is a circle of latitude that is 37 degrees north of the Earth's equatorial plane. It crosses Europe, the Mediterranean Sea, Africa, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.

At this latitude the sun is visible for 14 hours, 42 minutes during the summer solstice and 9 hours, 37 minutes during the winter solstice.[1] This is roughly the northern limit of the visibility of Canopus, the second-brightest star of the night sky.


  • Around the world 1
  • United States 2
  • See also 3
  • References 4

Around the world

Starting at the Prime Meridian and heading eastwards, the parallel 37° north passes through:

Co-ordinates Country, territory or sea Notes
Mediterranean Sea
Mediterranean Sea
Mediterranean Sea
Mediterranean Sea Gulf of Tunis
 Tunisia Cap Bon
Mediterranean Sea Strait of Sicily, passing just north of the island of Pantelleria,  Italy
 Italy Island of Sicily
Province of Ragusa
Province of Siracusa
Ionian Sea
 Greece Peloponnese (Messenia)
Ionian Sea Messenian Gulf
 Greece Peloponnese
Aegean Sea Myrtoan Sea
 Greece Island of Sifnos
Aegean Sea
 Greece Islands of Antiparos and Paros
Aegean Sea
 Greece Island of Naxos
Aegean Sea
 Greece Island of Levitha
Aegean Sea
 Greece Island of Kalymnos
Aegean Sea
Aegean Sea
 Turkey Passing through Adana and Nizip
 Turkey Şemdinli district (For about 7 km)
Caspian Sea
 Pakistan Gilgit-Baltistan - claimed by  India
 People's Republic of China Xinjiang - for about 14 km
 Pakistan Gilgit-Baltistan - for about 14 km, claimed by  India
 People's Republic of China Xinjiang
Yellow Sea
 South Korea South Chungcheong Province
Gyeonggi Province
North Chungcheong Province
North Gyeongsang Province
Sea of Japan
 Japan Island of Honshū:
Ishikawa Prefecture
Sea of Japan Toyama Bay
 Japan Island of Honshū:
Niigata Prefecture
Nagano Prefecture
— Niigata Prefecture
Gunma Prefecture − for around 10 km
— Niigata Prefecture − for around 7 km
Fukushima Prefecture
Tochigi Prefecture
Ibaraki Prefecture
— Fukushima Prefecture
Pacific Ocean
 United States California (landfall near Santa Cruz)
Utah / Arizona border
Colorado / New Mexico border
Colorado / Oklahoma border
Kansas / Oklahoma border
Illinois (at its southernmost point)
Virginia West Virginia
Atlantic Ocean
 Portugal Santa Maria Island in the Azores
Atlantic Ocean
 Portugal Sagres Point
Atlantic Ocean
 Portugal Cape Santa Maria
Atlantic Ocean Gulf of Cádiz
Mediterranean Sea

United States

The 37th parallel defining borders between states in the United States.

In the United States, the parallel defines the southern borders of Utah, Colorado, and Kansas, and the northern borders of Arizona, New Mexico, and Oklahoma. It dates to the Kansas–Nebraska Act of 1854 when Congress divided Indian Territory into Kansas and Nebraska north of the 37th parallel and a remainder Indian Territory to the south. Before that the line had been thought to be the boundary between the Cherokee and Osage reservations - The 2.46 miles (3.96 km) descrepancy resulting in the creation of the Cherokee Strip. Congress extended the line west to New Mexico Territory, thus defining which states and territories would contitute The South between the Colorado and Mississippi Rivers, and creating what later became the Oklahoma Panhandle.[2]

Landmarks on the 37th parallel include Santa Cruz, California; Gilroy, California; Madera, California; Ubehebe Crater in Death Valley; Colorado City, Arizona; the Four Corners at the intersection with the 32nd meridian west from Washington (the only place where four U.S. states meet at a point); Cairo, Illinois; Bowling Green, Kentucky; and Newport News, and Hampton,Virginia. It enters the Chesapeake Bay at the northern most tunnel entrance / exit of the Hampton Roads Bridge Tunnel and the southernmost point of Old Point Comfort on the former Army base, Ft. Monroe.

The parallel 37° north formed the southern boundary of the historic and extralegal Territory of Jefferson.

See also


  1. ^
  2. ^ Hubbard, Bill (2009). American Boundaries: The Nation, the States, the Rectangular Survey. University of Chicago Press. p. 158.  
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