How Airports Serve Hawaii
Mark Pearson
This map displays the major airports in and around Hawaii. It shows how the state can divided according to which airport is the closest as the crow flies.
The flags are a sample of 321 census tracts (of 321 tracts total) within the state.
Some census tract flags may look like they are colored for one airport's region but are actually in another airport's region. The census tract flags are colored with which airport they are closest to as the crow flies along the surface of the earth (the Haversine distance formula). The region boundaries that are displayed on map were computed assuming assuming the earth is flat. (The lines that divide regions are a Voronoi diagram, and I couldn't find any algorithm that calculate the lines on a sphere such as the earth.) In short, although a few census tracts may look like they're mislabeled near a boundary, it's actually the boundary that is slightly wrong.
For more information, see the full report:
http://www.mark-pearson.com/airport-distances/

HNL serves 953,207 people in HI
Honolulu International Airport / Hickam AFB

OGG serves 154,924 people in HI
Kahului Airport

ITO serves 104,807 people in HI
Hilo International Airport

KOA serves 80,272 people in HI
Kona International Airport at Keahole

LIH serves 67,091 people in HI
Lihue Airport (Lihu'e Airport)

dividing line

3,715 people
closest airport: LIH

2,005 people
closest airport: HNL

8,426 people
closest airport: OGG

closest airport: OGG

closest airport: KOA

closest airport: HNL

closest airport: ITO

1 people

904 people

closest airport: LIH

374 people