Keith Foote Nyborg
1930–2019Businessman; US Ambassador to Finland, 1981-86
Each edition grades its towns against each other only.
Closest of all is Keith Foote Nyborg, from Ashton, 32 mi away. No famous person’s birth in Island Park is on record yet. Across Idaho, 94 towns list someone born there. The longest list of any town in Idaho belongs to Boise City, with 39.

The 2 best known born within 35 miles, nearest first.
Businessman; US Ambassador to Finland, 1981-86

Pick one and say why. Your answer becomes a post in Town Square.
Be the first to say who Island Park’s most famous person is.
From Wikidata and Wikipedia: people whose birthplace is Island Park and whose English Wikipedia article agrees, ranked by how many Wikipedia languages cover each person. Nearby people are those born in a town within 35 miles; distances are town center to town center. People known mainly for crimes, and adult performers, aren’t listed. “The usual town” = everyone born in the towns gathered so far.