Why is a small unincorporated rural community in Pima County, Arizona, United States. It lies near the western border of the Tohono O'Odham Indian Reservation and due north of Organ Pipe Cactus National Monument in Southern Arizona. It is approximately thirty miles north of the Mexican border where Lukeville, Arizona and Sonoita, Sonora, Mexico border each other, and ten miles south of Ajo, Arizona.
The population in Why at the 2000 census was approximately 113.
The unusual name of the town comes from the fact that the two major highways
, State Routes 85
, originally intersected in a Y-intersection. At the time of its naming, Arizona law required all city names to have at least three letters, so the town's founders named the town "Why" as opposed to simply calling it "Y." The Arizona Department of Transportation
(ADOT) later removed the old Y-intersection for traffic safety reasons and built the two highways in a conventional T-intersection
south of the original intersection.
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This is the sum of the populations of Blocks 1131-1153, Census Tract 49, Pima County, Arizona according to US Census Factfinder