Kershaw’s knives made in American come from their Tualatin, Oregon facility. Some of Kershaw’s knives are made in foreign factories as well.
Kershaw began business in 1974.
You can read about the full company history of Kershaw Knives on their website.
My favorite two resources to find the best deals on Kershaw knives is either Blade HQ or Amazon.
https://kershaw.kaiusaltd.com/