Herrick, IL

ZIP code 62431 encompasses the small town of Hidalgo, Illinois. This rural community is known for its quaint charm and close-knit atmosphere. One of the most significant landmarks in the area is the Hidalgo Mound State Historic Site, a preserved Native American burial mound dating back over 2,000 years. The town also features a few local businesses, a post office, and a park for recreational activities.