Pacific OceanUnited States
25°00′N 168°00′W
Northwestern Hawaiian Islands
Northwestern Hawaiʻian Islands
Part of Hawaiian Islands
The Northwestern Hawaiian Islands, also known as the Leeward Hawaiian Islands, are a series of mostly uninhabited islands and atolls located northwest of Kauai and Niʻihau in the Hawaiian island chain. S.

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Overview
The Northwestern Hawaiian Islands, also known as the Leeward Hawaiian Islands, are a series of mostly uninhabited islands and atolls located northwest of Kauai and Niʻihau in the Hawaiian island chain. Politically, these islands are part of Honolulu County in the U.S. state of Hawaii, with the exception of Midway Atoll, though they are generally not included on maps and graphic depictions of the State of Hawaii. Midway Atoll is a territory distinct from the State of Hawaii, and is classified as one of the United States Minor Outlying Islands. The United States Census Bureau designates this area, excluding Midway Atoll, as Census Tract 114.98 of Honolulu County. The total land area of these islands is 3.1075 square miles (8.048 km²). With the exception of Nīhoa, all of the islands lie north of the Tropic of Cancer, making them the only islands in Hawaii situated outside the tropics. Almost all of the islands are uninhabited, the main exception being Midway Atoll, which maintains a permanent rotating population of U.S. Fish and Wildlife Service staff and other workers. Kure Atoll and Tern Island have a seasonal population of a small team of environmental staff. At least some of the islands were visited by Ancient Hawaiians, with Nīhoa showing evidence of permanent habitation. The Northwestern Hawaiian Islands are part of the Papahānaumokuākea Marine National Monument, a globally significant marine conservation area. They are home to endangered species like the Hawaiian monk seal and green sea turtle and hold cultural importance for Native Hawaiians. Geologically, they are the oldest in the Hawaiian-Emperor seamount chain, shaped by volcanic activity and erosion over millions of years. The Northwestern or Leeward Hawaiian Islands include
Nīhoa (Moku Manu) at 23°03′38″N 161°55′19″W Necker (Mokumanamana) at 23°34′30″N 164°42′01″W French Frigate Shoals (Kānemilohaʻi) (Lalo) at 23°52′12″N 166°17′06″W Gardner Pinnacles (Pūhāhonu) (ʻŌnūnui and/or ʻŌnūiki) at 24°59′57″N 167°59′56″W Maro Reef (Nalukākala) (Koʻanakoʻa) (Kamokuokamohoaliʻi) at 25°26′15″N 170°35′24″W Laysan (Kauō) (Kamole) at 25°46′12″N 171°44′06″W Lisianski (Papaʻāpoho) (Kapou) at 26°03′45″N 173°57′54″W Pearl and Hermes Atoll (Holoikauaua) (Manawai) at 27°47′24″N 175°49′12″W Midway Atoll (Pihemanu) (Kuaihelani) at 28°12′27″N 177°21′00″W – not part of the State of Hawaii Kure Atoll (Mokupāpapa) (Hōlanikū) at 28°23′24″N 178°17′42″W
From Wikipedia, CC BY-SA 4.0
Census, cataloged
- Major islands8
- Minor islands7
- Islets18
- Rocks & skerries11
Major islands
Sand Island
- Area
- 4.5 km²
- High point
- 30 m
Laysan
- Area
- 4.1 km²
- High point
- 10 m
Laysan (; Hawaiian: Kauō [kɐwˈoː]) is one of the Northwestern Hawaiian Islands, located 808 nautical miles (930 mi; 1,496 km) northwest of Honolulu. 4 km) in size. 9 ft) above sea level, that has a salinity approximately three times greater than the ocean. Laysan's Hawaiian name, Kauō, means "egg".
Johnston Atoll
- Area
- 2.5 km²
- High point
- 17 m
Johnston Atoll is an unincorporated territory of the United States, under the jurisdiction of the United States Air Force (USAF). The island is closed to public entry, and limited access for management needs is only granted by a letter of authorization from the USAF.
Lisianski Island
- Area
- 1.4 km²
- High point
- 7 m
571 ha) and a maximum elevation of 40 feet (12 m) above sea level. It is a low, flat sand and coral island about 905 nautical miles (1,041 mi; 1,676 km) northwest of Honolulu, Hawaii. The island is surrounded by reefs and shoals, including the extensive Neva Shoals.
Nīhoa
- Area
- 0.7 km²
- High point
- 277 m
Nīhoa, also written Nihoa and also known as Bird Island or Moku Manu, is the tallest of ten islands and atolls in the uninhabited Northwestern Hawaiian Islands (NWHI). The island is located at the southern end of the NWHI chain, 296 km (160 nmi) southeast of Necker Island.
Eastern Island
- Area
- 1.3 km²
- High point
- 6 m
Green Island
- Area
- 0.9 km²
- High point
- 6 m
Kure Atoll
- Area
- 0.88 km²
Kure Atoll (; Hawaiian: Hōlanikū, lit. 'bringing forth heaven'; Mokupāpapa, 'flat island') or Ocean Island is an atoll in the Pacific Ocean 48 nautical miles (89 km; 55 mi) west-northwest of Midway Atoll in the Northwestern Hawaiian Islands at 28°25′N 178°20′W. 7 km) across encloses a lagoon several meters deep.
Minor islands
Pearl and Hermes Atoll
- Area
- 0.36 km²
French Frigate Shoals
- Area
- 0.25 km²
- High point
- 36 m

Necker Island
- Area
- 0.18 km²
- High point
- 84 m
Southeast Island
- Area
- 0.17 km²
- High point
- 2 m
Seal Kittery Island
- Area
- 0.12 km²

Tern Island
- Area
- 0.12 km²
- High point
- 4 m
Unnamed island
- Area
- 0.12 km²
Islets
- North Island4 m · 0.07 km²
- Spit Island4 m · 0.05 km²
- Grass Island0 m · 0.03 km²
- Gin Island9 m · 0.02 km²
- Gardner Pinnacles3 m · 0.02 km²
- Little Gin Island9 m · 0.02 km²
- East Island9 m · 0.02 km²
- Little North Island0.02 km²
- Sand Island0.01 km²
- Bird Island0.6 ha
- Disappearing Island0.5 ha
- Shark Island0.5 ha
Rocks & skerries
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
Figures
Comparative heights
To the same scale
Islands by area
| Sand Island | 4.5 km² |
| Laysan | 4.1 km² |
| Johnston Atoll | 2.5 km² |
| Lisianski Island | 1.4 km² |
| Eastern Island | 1.3 km² |
| Green Island | 0.9 km² |
| Kure Atoll | 0.88 km² |
| Nīhoa | 0.7 km² |
| Pearl and Hermes Atoll | 0.36 km² |
| French Frigate Shoals | 0.25 km² |
| Necker Island | 0.18 km² |
| Southeast Island | 0.17 km² |
| Seal Kittery Island | 0.12 km² |
| Tern Island | 0.12 km² |
| Unnamed island | 0.12 km² |
| North Island | 0.07 km² |
| Spit Island | 0.05 km² |
| Grass Island | 0.03 km² |
| Gin Island | 0.02 km² |
| Gardner Pinnacles | 0.02 km² |
| Little Gin Island | 0.02 km² |
| East Island | 0.02 km² |
| Little North Island | 0.02 km² |
| Sand Island | 0.01 km² |
| Bird Island | 0.6 ha |
| Disappearing Island | 0.5 ha |
| Shark Island | 0.5 ha |
| Unnamed island | 0.4 ha |
| La Perouse Pinnacle | 0.3 ha |
| Unnamed island | 0.2 ha |
| Unnamed island | 0.2 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
Groups within
Photographs

Lisianski Island, Northwestern Hawaiian Islands, from 33,000 feet. Looking south

Aerial view of Laysan Island, Northwestern Hawaiian Islands
Robert J. Shallenberger, U.S. Fish and Wildlife Service / Public domain

Nīhoa (Nihoa Island) at sunrise, view at sea aboard Kahana boat, near Nihoa, Hawaii. September 07, 2013 #130907-0555 Image Use Policy

The interior of Laysan, showing its lake and the birds that nest there.

Modern ship wreck at Pearl and Hermes Reef. Propeller. Hawaii, Northwest Hawaiian Islands.

Diver carefully inspecting World War II mine that drifted to Pearl and Hermes Reef. Hawaii, Northwest Hawaiian Islands.

U.S. Government Accountability Office from Washington, DC, United States / Public domain

Photo showing some phantom islands on old Globe west of Hawaii

Cropped and annotated from File:Map of Oceanian Ecoregions.svg
Sources
Facts
Photographs
- Lisianski Island - Hawaiian Chain. 船长八帕拉佐洛 / CC BY-SA 3.0
- Laysan Aerial. Robert J. Shallenberger, U.S. Fish and Wildlife Service / Public domain
- Starr-130907-0555-Nihoa at sunrise-aboard Kahana boat (25222196075). Forest and Kim Starr / CC BY 3.0 us
- Laysan Island Interior. Cindy Rehkemper/USFWS / Public domain
- Reef3641 - Flickr - NOAA Photo Library. Dr. Dwayne Meadows, NOAA/NMFS/OPR. / Public domain
- Reef3646 - Flickr - NOAA Photo Library. Dr. Dwayne Meadows, NOAA/NMFS/OPR. / Public domain
- Figure 43- 500-Pound Bomb and Submarine Torpedo (Property No. S-8), Midway Atoll, Sand Island (April 14, 2015, and April 18, 2015) (25493799263). U.S. Government Accountability Office from Washington, DC, United States / Public domain
- Photo of JRO Globe ca 1960 west of Hawaii. Ratzer / CC BY-SA 4.0
- Ecoregion OC0703. Tom Radulovich / CC BY-SA 4.0