Hilo is a city located in the state of Hawaii. It serves as the county seat for Hawaii County. Hilo is home to two volcanoes, including Mauna Loa which is active. It is also the site of the University of Hawaii at Hilo and is known for the Merrie Monarch Festival and is one of the largest producers of macadamia nuts in the world. The last census in 2010 showed a population of 43,263.
City Size and Population Density
The city’s total area is over 58 square miles, and it has a population density of 810 people square mile.
Hilo Gender and Age Statistics
There are more females than males residing in Hilo, with 95.5 men for every 100 women. People under the age of 18 make up the city’s largest age group—over 21% of the population.
Hilo Population Growth
The city’s population throughout the 20th century grew until 1960 when the census that year showed that a population drop had occurred. However, by the next poll, that number had bounced back, and substantial growth was recorded at the next 10-year census in 1980. The city is continuing to see slow but steady growth, a trend that is expected to continue through the future.
Hilo, Hawaii's estimated population is according to the most recent United States census estimates. Hilo, Hawaii is the -th largest city in Hawaii based on official 2017 estimates from the US Census Bureau.
The population density is 0.00 people/mi² (0.00 people/km²).
The overall median age is 40 years, 37 years for males, and 41.7 years for females. For every 100 females there are 97.6 males.
Based on data from the American Community Survey, in 2017 there were 18,337 households in the city, with an average size of 2.78 people per household. The homeowner vacancy rate was 1.6%, with a median rent of $988/month. The median house has 5.1 rooms, and has a value of $305,900.
The median income for households in Hilo, Hawaii is $57,151, while the mean household income is $69,790.
According to the most recent ACS, the racial composition of Hilo was:
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
Born in Hawaii
Place of Birth
92.51% of Hilo residents were born in the United States, with 75.77% having been born in Hawaii. 3.41% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.