Hilo, Hawaii
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Hilo, Hawaii
Hilo, Hawaii
From top to bottom, left to right: S. Hata Building, Hilo Masonic Lodge Hall-Bishop Trust Building, Hilo Bay with Mauna Kea, Rainbow (Wai?nuenue) Falls, Federal Building, Post Office and Courthouse and Liliuokalani Park and Gardens.
Location in Hawaii County and the U.S. state of Hawaii.
Location in Hawaii County and the U.S. state of Hawaii.
Hilo is located in Hawaii
Location in Hawaii County and the U.S. state of Hawaii.
Coordinates: 19°42?20?N 155°5?9?W / 19.70556°N 155.08583°W / 19.70556; -155.08583Coordinates: 19°42?20?N 155°5?9?W / 19.70556°N 155.08583°W / 19.70556; -155.08583
Country United States
State Hawaii
County Hawaii
 o MayorMitch Roth
 o Total58.3 sq mi (151.0 km2)
 o Land53.4 sq mi (138.3 km2)
 o Water4.9 sq mi (12.7 km2)
59 ft (18 m)
 o Total43,263
 o Density810/sq mi (312.9/km2)
Time zoneUTC−10 (Hawaii-Aleutian)
ZIP codes
Area code(s)808
FIPS code15-14650

Hilo (Hawaiian pronunciation: ['hilo]) is a census-designated place (CDP) and the largest city in Hawaii County, Hawaii, United States, which encompasses the Island of Hawaiʻi. The population was 43,263 according to the 2010 census.[1]

Hilo is the county seat of the County of Hawaiʻi and is in the District of South Hilo.[2] The city overlooks Hilo Bay, at the base of two shield volcanoes, Mauna Loa, an active volcano, and Mauna Kea, a dormant volcano. Mauna Kea is the site of some of the world's most important ground-based astronomical observatories. Much of Hilo is at risk from lava flows from Mauna Loa, with the bay-front being twice destroyed by tsunamis. The majority of human settlement in Hilo stretches from Hilo Bay to Wai?kea-Uka, on the flanks of the volcanoes.

Hilo is home to the University of Hawaiʻi at Hilo, ?Imiloa Astronomy Center, as well as the Merrie Monarch Festival, a week-long celebration of ancient and modern hula that takes place annually after Easter. Hilo is also home to the Mauna Loa Macadamia Nut Corporation, one of the world's leading producers of macadamia nuts. Hilo is served by Hilo International Airport.[3]


Around 1100 AD, the first Hilo inhabitants arrived, bringing with them Polynesian knowledge and traditions. Although archaeological evidence is scant, oral history has many references to people living in Hilo, along the Wailuku and Wailoa rivers during the time of ancient Hawaii.[4] Oral history gives the meaning of Hilo as "to twist".[5]

Originally, the name "Hilo" applied to a district encompassing much of the east coast of the island of Hawaiʻi, now divided into the District of South Hilo and the District of North Hilo. When William Ellis visited in 1823, the main settlement there was Wai?kea on the south shore of Hilo Bay.[6] Missionaries came to the district in the early-to-middle 19th century, founding Haili Church.

Hilo expanded as sugar plantations in the surrounding area created jobs and drew in many workers from Asia. For example, by 1887, 26,000 Chinese workers worked in Hawai'i's sugar cane plantations,[7] one of which was the Hilo Sugar Mill. At that time, the Hilo Sugar Mill produced 3,500 tons of sugar annually.[8]

A breakwater across Hilo Bay was begun in the first decade of the 20th century and completed in 1929. On April 1, 1946, a 7.8-magnitude earthquake near the Aleutian Islands created a 46-foot-high (14 m) tsunami that hit Hilo 4.9 hours later, killing 160 people. In response, an early warning system, the Pacific Tsunami Warning Center, was established in 1949 to track these killer waves and provide warning. This tsunami also caused the end of the Hawaii Consolidated Railway, and instead the Hawaii Belt Road was built north of Hilo using some of the old railbed.[9]

On May 22, 1960, another tsunami, caused by a 9.5-magnitude earthquake off the coast of Chile that day, claimed 61 lives,[10] allegedly due to the failure of people to heed warning sirens. Low-lying bayfront areas of the city on Wai?kea peninsula and along Hilo Bay, previously populated, were rededicated as parks and memorials.

Hilo expanded inland beginning in the 1960s. The downtown found a new role in the 1980s as the city's cultural center with several galleries and museums opening; the Palace Theater reopened in 1998 as an arthouse cinema.

Closure of the sugar plantations (including those in H?m?kua) during the 1990s hurt the local economy, coinciding with a general statewide slump.[11] Hilo in recent years has seen commercial and population growth.[12]


Hilo is on the eastern and windward side of the island.[13] It is classified by the U.S. Census Bureau as a census-designated place (CDP), and has a total area of 58.3 square miles (151.0 km2), 53.4 square miles (138.3 km2) of which is land and 4.9 square miles (12.7 km2) of which (8.4%) is water.[14]


Hilo has a tropical rainforest climate (Köppen Af), with substantial rainfall throughout the year. Its location on the windward coast (relative to the trade winds), makes it the fourth-wettest city in the United States, behind the southeast Alaskan cities of Whittier, Ketchikan and Yakutat, and one of the wettest in the world. An average of around 126.72 inches (3,220 mm) of rain fell at Hilo International Airport annually between 1981 and 2010, with 272 days of the year receiving some rain.[15] Rainfall in Hilo varies with altitude, with more at higher elevations. At some weather stations in upper Hilo the annual rainfall is above 200 inches (5,100 mm).[16]

Monthly mean temperatures range from 71.2 °F (21.8 °C) in February to 76.4 °F (24.7 °C) in August.[15] The highest recorded temperature was 94 °F (34 °C) on May 20, 1996, and the lowest 53 °F (12 °C) on February 21, 1962.[17] The wettest year was 1994 with 182.81 inches (4,643.4 mm), and the driest was 1983, with 68.09 inches (1,729.5 mm). The most rainfall in one month was 50.82 inches (1,290.8 mm) in December 1954. The most rainfall in 24 hours was 27.24 inches (691.9 mm) on November 2, 2000.[18]

Hilo's location on the shore of the funnel-shaped Hilo Bay also makes it vulnerable to tsunamis.[19]

Climate data for Hilo International Airport, Hawaii (1991-2020 normals,[20] extremes 1949-present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 92
Mean maximum °F (°C) 85
Average high °F (°C) 78.7
Daily mean °F (°C) 71.4
Average low °F (°C) 64.1
Mean minimum °F (°C) 59
Record low °F (°C) 54
Average rainfall inches (mm) 7.86
Average rainy days 15.7 16.6 21.8 24.5 22.9 25.4 26.6 27.2 23.3 23.4 23.3 22.3 273.0
Average relative humidity (%) 76.6 76.0 78.1 80.2 78.9 77.4 79.5 79.5 79.2 80.0 80.3 78.7 78.7
Mean monthly sunshine hours 161.0 152.0 152.7 135.9 155.0 176.9 167.2 174.9 161.5 136.3 115.0 129.0 1,817.4
Percent possible sunshine 47 47 41 36 38 44 41 44 44 38 34 38 41
Source: NOAA (relative humidity and sun 1961-1990)[17][15][21]


As of the census of 2010, 43,263 people lived in 15,483 households in the census-designated place. The population density was 796.7 people per square mile (307.7/km²). The 16,905 housing units reflected an average density of 311.3 per square mile (120.2/km²).

The racial makeup was 34.3% Asian, 17.6% White, 14.2% Native Hawaiian & Pacific Islander, 0.5% African American, 0.3% American Indian & Alaska Native, 0.6% from other races, and 32.5% from two or more races. Hispanic or Latino of any race were 10.4% of the population.[1]

24.3% of the households had children under the age of 18 living with them. The average household size was 2.79.[1]

The age distribution was 21.3% under age 18, 11.3% from 18 to 24, 11.5% from 25 to 34, 16.9% from 35 to 49, 20.9% from 50 to 64, and 18.0% 65 or older. The ratio of females to males was 100:95.5.[1]

The median household income at the 2000 census was $39,139, while the median family income was $48,150. Males had a median income in 2000 of $36,049 compared to $27,626 for females. The per capita income was $18,220. About 11.1% of families and 17.1% of the population were below the poverty line, including 23.5% of those under age 18 and 6.7% of those age 65 or over.


Pride of America docked at Hilo Harbor; Hilo International Airport runway is visible in the background


Hilo is served by Hilo International Airport, where Hawaiian Airlines, Southwest Airlines, and United Airlines operate.


Hilo is served by the county Hele-On Bus.[23]


Hilo is served by the Big Island's largest harbor, Hilo Harbor, on Hilo Bay.[24]


Hilo is home to a number of educational institutions, including two post-secondary institutions, the University of Hawaiʻi at Hilo and Hawaiʻi Community College, and the Hilo and Waiakea primary and secondary school districts. Charter schools in the area serve primary and secondary students.


Although sometimes called a city, Hilo is not an incorporated city, and does not have a municipal government. The entire island, which is between the slightly larger state of Connecticut and smaller Rhode Island in size, is under the jurisdiction of the County of Hawaiʻi, of which Hilo is the county seat.

Hilo is home to county, state, and federal offices.


Parks and attractions near Hilo Bay and downtown Hilo, Hawaii
  •  Points of interest 
  •  Parks and open spaces 
  •  Transportation 

Lyman House Memorial Museum
Haili Church
Kal?kaua Park / East Hawaii Cultural Center
Pacific Tsunami Museum
Moʻoheau County Park (Hele-On Bus Terminal) / S. Hata Building / Mokup?papa Discovery Center
Russell Carroll Soccer Fields
Aupuni Center / County of Hawaiʻi offices
Hilo Bayfront Beach Park
Wailoa River State Recreation Area / Wai?kea Pond
Coconut Island / Moku Ola
Queen Liliʻuokalani Park and Gardens / Banyan Drive
Grand Naniloa Hotel / Naniloa Golf Course
Reed's Bay Beach Park
Hoʻolulu Complex (Merrie Monarch Festival site): Afook-Chinen Civic Auditorium · Aunty Sally Kaleohano's Luʻau Hale · Edith Kanakaʻole Stadium · 'Sparky' Kawamoto Swim Stadium · Walter Victor Baseball Complex · Francis Wong Stadium
Hilo Harbor
Hilo International Airport

The oldest city in the Hawaiian archipelago, Hilo's economy was historically based on the sugar plantations of its surrounding areas, prior to their closure in the 1990s.[11]

Tourism and events

While Hilo has a fairly significant tourism sector,[25] it gets less than half the annual visitors as the western coast of the Big Island, which has much sunnier weather and significantly less rain, with sandy and swimmable beaches and numerous major resorts.[11]

A main source of tourism in Hilo is the annual week-long Merrie Monarch Festival, the world's preeminent hula competition and festival, which brings in visitors and participants from all over the world.[25] It is held in the spring of each year beginning on Easter Sunday.

The local orchid society hosts the largest and most comprehensive orchid show in the state, the annual Hilo Orchid Show, which has been presented since 1951 and draws visitors and entrants worldwide.[26][27][28]

Hilo is home to Hawaii's only tsunami museum, mostly dedicated to the 1946 Pacific tsunami, and is notable for the banyan trees planted by Babe Ruth, Amelia Earhart and other celebrities. It is home to the Pana'ewa Rainforest Zoo, shopping centers, cafés and other eateries, movie theaters, hotels, restaurants, and a developed downtown area with a Farmers Market.[11] Downtown Hilo is bounded approximately by the Wailuku River, Kamehameha Avenue, Ponahawai Street, and Kapiolani Street.[29]

Corporations and science

The Mauna Loa Macadamia Nut Corporation is in Hilo, south of the main town off Hawaii Route 11, north of Keaʻau.

Hilo is home to most of the astronomical observatories on Mauna Kea as well as the ?Imiloa Planetarium and Museum. Astronomy has an economic impact of $100 million annually on the island.[30] Astronomy on Mauna Kea was developed at the invitation of the Hawaii Chamber of Commerce following the collapse of the sugar cane industry.[31]



Points of interest


Hilo is served by KWXX (94.7FM Hilo/101.5FM Kona), B93/B97 (93.1FM Kona/97.1FM Hilo), The Wave (KHBC 92.7FM Hilo), and KPUA (970AM Hilo) radio stations.

Public Access television is provided through N? Leo TV.

The Hawaii Tribune-Herald, of Oahu Publications Inc., a subsidiary of Black Press,[33] is Hilo's primary newspaper distribution company along with other newspapers like the Honolulu Star-Advertiser.

Sister cities


Asteroid (342431) Hilo is named after Hilo.[34]

Hilo District

(3) North Hilo and (2) South Hilo Districts are located in the east coast of Hawaii County (the Big Island). They are bordered by Hamakua District (4) in the north, and by Kau District (9) in the south and Puna District (1) in the southeast. The far inland areas are largely unpopulated, being forest reserves on the slopes of Mauna Kea and Mauna Loa.

Hilo also referred to the District of Hilo when the Big Island was divided into six districts by the traditional moku land division. Hilo is now divided in two: North and South Hilo Districts.[35]

North Hilo District

The District of North Hilo, along Hawaii State Highway 19 from north to south, encompasses the following unincorporated towns and localities:

and others. Inland, along State Highway 200, are Mauna Kea mountain road and Puu Huluhulu and others.

South Hilo District

In the District of South Hilo, along State Highway 19, are the following unincorporated towns and localities:

Along State Highway 11, are:

and others. Along State Highway 200 and its extension, are:

and others.


  1. ^ a b c d e "US Census Bureau - 2010 Population Finder - Hilo CDP -". Archived from the original on 2014-01-16. Retrieved .
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved .
  3. ^ "Hilo CDP, Hawaii Archived 2011-11-24 at the Wayback Machine." U.S. Census Bureau. Retrieved on May 21, 2009.
  4. ^ Lloyd J. Soehren (2010). "lookup of Hilo ". in Hawaiian Place Names. Ulukau, the Hawaiian Electronic Library. Retrieved 2011.
  5. ^ Hapai, Charlotte (1920-01-01). Legends of the Wailuku: as told by old Hawaiians. Honolulu, The Charles R. Frazier company. Archived from the original on 2017-07-05. Retrieved .
  6. ^ Ellis, W. A Narrative of an 1823 Tour through Hawai'i, republished 2004, Mutual Publishing, Honolulu ISBN 1-56647-605-4, chapters 11 and 12
  7. ^ "Hawaii". Immigration to the United States. Archived from the original on 2019-09-05. Retrieved .
  8. ^ Laitinen, Denise (2013-09-18). "Then & Now: Hilo Sugar Mill/Wainaku Center". Ke Ola Magazine. Archived from the original on 2019-11-14. Retrieved .
  9. ^ Johnston, Jeanne Branch (2003). Personal Accounts from Survivors of the Hilo Tsunamis of 1946 and 1960: Toward a Disaster Communications Model (M.A.). University of Hawaii at Manoa. hdl:10125/7104.
  10. ^ Gates, Alexander E.; Ritchie, David (2006). Encyclopedia of Earthquakes and Volcanoes. Infobase Publishing. ISBN 9780816072705.
  11. ^ a b c d "Hello, Hilo". The Washington Post. 2004-05-23. Archived from the original on 2014-07-01. Retrieved .
  12. ^ Lauer, Nancy Cook (December 22, 2019). "Hawaii Island leads state in population growth, despite some towns seeing declines". Hawaii Tribune-Herald. Retrieved 2020.
  13. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved .
  14. ^ "Geographic Identifiers: 2010 Demographic Profile Data (G001): Hilo CDP, Hawaii". American Factfinder. U.S. Census Bureau. Retrieved 2017.[dead link]
  15. ^ a b c "Station: Hilo INTL AP, HI". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). National Oceanic and Atmospheric Administration. Retrieved 2021.
  16. ^ Hilo, Hawaiʻi information Archived 2009-01-15 at the Wayback Machine on NOAA web site
  17. ^ a b "NowData - NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved 2021.
  18. ^ Record 24-hour rainfall Archived 2009-05-09 at the Wayback Machine on NOAA web site
  19. ^ "Where is Hilo Hawai'i?". Frequently Asked Questions. The Pacific Tsunami Museum web site. Archived from the original on 2009-05-28. Retrieved .
  20. ^ Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.
  21. ^ "WMO climate normals for Hilo/WSO AP 87, HI 1961-1990". National Oceanic and Atmospheric Administration. Retrieved 2015.
  22. ^ "Census of Population And Housing". U.S. Census Bureau. Retrieved .
  23. ^ "Hawai'i Island Hele-On Bus". County of Hawai'i Mass Transit Agency. Archived from the original on 2009-05-03. Retrieved .
  24. ^ "Hilo Harbor (Harbor Division, Hawaii Department of Transportation)" (PDF). Archived (PDF) from the original on 2017-01-07. Retrieved .
  25. ^ a b Yamanaka, Katie Young. "Hilo: The Hub of Natural Wonders". Hawaii.com. Retrieved 2020.
  26. ^ Richard, Crystal (5 June 2017). "Jewels of the jungle sparkle at Hilo Orchid Show". Arts & Entertainment. Big Island Now. Retrieved 2017.
  27. ^ largest and most comprehensive in the state
  28. ^ https://www.voitstudios.com/blog/63rd-annual-hilo-orchid-society-show-and-sale
  29. ^ "Walking Tour". Hilo Downtown Improvement Association. Retrieved 2021.
  30. ^ "Hawaii's astronomy sector brought an economic impact of $168 million in 2012". bizjournals.com. Archived from the original on 2019-05-31. Retrieved .
  31. ^ "Origins of astronomy in Hawaii » Malama Mauna Kea Library Catalog". malamamaunakea.org. Archived from the original on 2018-04-16. Retrieved .
  32. ^ "Education - Discovery Center". Papah?naumoku?kea Marine National Monument web site. NOAA. Archived from the original on 2009-10-18. Retrieved .
  33. ^ "Hawaii Tribune-Herald". official web site. Black Press. Archived from the original on 2009-09-06. Retrieved .
  34. ^ "HORIZONS System". ssd.jpl.nasa.gov. Archived from the original on 2019-06-24. Retrieved .
  35. ^ James A. Bier, Cartographer, Map of Hawai'i, the Big Island, Eighth Edition (University of Hawai'i Press)
  36. ^ "Laupahoehoe Train Museum - Take a Trip Back in Time". www.thetrainmuseum.com. Archived from the original on 2017-12-16. Retrieved .
  37. ^ "Shopping Mall in Hilo, HI | Prince Kuhio Plaza". www.princekuhioplaza.com. Archived from the original on 2019-06-24. Retrieved .
  38. ^ "Home | Puainako Center - Hilo, Hawaii Shopping Center". www.puainakocenter.com. Archived from the original on 2017-12-14. Retrieved .

Further reading

External links

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