Weldon Springs, MO, is a small city located in St. Charles County, Missouri. With a population of approximately 5,000 people, Weldon Springs is a quiet and quaint community located just 25 miles from St. Louis. The city offers a peaceful atmosphere with beautiful neighborhoods, parks, and trails. It is known for its friendly small-town charm and excellent schools. Weldon Springs, MO, is also home to several businesses, including a grocery store, an antique shop, and restaurants.