How Airports Serve Nevada
Mark Pearson
This map displays the major airports in and around Nevada. It shows how the state can divided according to which airport is the closest as the crow flies.
The flags are a sample of 500 census tracts (of 680 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/

LAS serves 1,877,901 people in NV
McCarran International Airport

RNO serves 642,690 people in NV
Reno-Tahoe International Airport

BVU serves 110,238 people in NV
Boulder City Municipal Airport

BOI serves 31,972 people in NV
Boise Airport (Boise Air Terminal) (Gowen Field)

SLC serves 26,876 people in NV
Salt Lake City International Airport

IFP serves 7,546 people in NV
Laughlin/Bullhead International Airport

FAT serves 3,328 people in NV
Fresno Yosemite International Airport

dividing line

3,113 people
closest airport: LAS

4,018 people
closest airport: LAS

2,343 people
closest airport: BOI

closest airport: LAS

closest airport: RNO

909 people

711 people

closest airport: BVU

closest airport: IFP

8 people

closest airport: BOI

closest airport: SLC

closest airport: FAT