Weldon Spring is a city in eastern Missouri, located in St. Charles County about 30 miles west of downtown St. Louis. The community sits near the Missouri River and is part of the growing St. Louis metropolitan area. Weldon Spring is known for its parks, nearby Katy Trail, historic Weldon Spring Ordnance Works, and easy access to the Missouri River hills and valleys.
Location Map of Weldon Spring, St. Charles County, Missouri
About Map: The map shows the location of Weldon Spring in St. Charles County, in the U.S. state of Missouri.
Weldon Spring Map, Missouri
About Weldon Spring Map: The Google Map highlights the location of Weldon Spring in St. Charles County, Missouri. Use the zoom, satellite, and street-view options to explore the city's neighborhoods, roads, and nearby places.
Where is Weldon Spring Located?
Weldon Spring is a city located in St. Charles County, Missouri, the United States. It is in eastern Missouri, about 30 miles west of downtown St. Louis, 12 miles southwest of St. Charles, and near the Missouri River. Weldon Spring lies at approximately 38.713° North latitude and 90.690° West longitude. The city had 5,607 residents in the 2020 Census and covers about 8.09 square miles, or 20.95 square kilometers. Weldon Spring developed from a rural community into a suburban city as the western St. Louis metropolitan area expanded. The area has a distinctive history connected to the Weldon Spring Ordnance Works, which produced explosives during World War II. Today, the site is part of a federal cleanup area with a large disposal cell and interpretive trail. The surrounding landscape includes rolling hills, forests, limestone formations, and streams. Nearby attractions include the Katy Trail State Park, Missouri Bluffs State Park, Busch Wildlife Conservation Area, and the Missouri River. Interstate 64 and Missouri Route 94 provide important connections to St. Louis, St. Charles, and communities farther west.
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Weldon Spring City Facts
| Fact | Details |
|---|---|
| City | Weldon Spring |
| State | Missouri |
| County | St. Charles County |
| Country | United States |
| Region | Eastern Missouri / St. Louis Metropolitan Area |
| Incorporated | 1979 |
| Founded | 19th century |
| Total Area | 8.09 sq mi (20.95 sq km) |
| Land Area | 8.00 sq mi (20.72 sq km) |
| Water Area | 0.09 sq mi (0.23 sq km) |
| Elevation | Approximately 650 ft (198 m) |
| Population (2023 estimate) | Approximately 5,700 |
| Population (2020 Census) | 5,607 |
| Population Density | Approximately 701 people per sq mi |
| Time Zone | Central Time Zone (CST/CDT) |
| ZIP Codes | 63304, 63366 |
| Area Code | 636 |
| Major Highways | Interstate 64, Missouri Route 94, Missouri Route 40 |
| Public Transit | St. Charles County regional transportation services |
| Major Attractions | Weldon Spring Site Interpretive Center, Katy Trail State Park, Missouri Bluffs State Park, Busch Wildlife Conservation Area |
| Official Website | https://www.weldonspring.org/ |
Distance from Weldon Spring, MO to Nearby Cities
- Defiance, MO – 5 miles (8 km)
- St. Charles, MO – 12 miles (19 km)
- O'Fallon, MO – 12 miles (19 km)
- Wentzville, MO – 15 miles (24 km)
- Chesterfield, MO – 15 miles (24 km)
- Lake Saint Louis, MO – 17 miles (27 km)
- St. Peters, MO – 15 miles (24 km)
- Maryland Heights, MO – 20 miles (32 km)
- Florissant, MO – 28 miles (45 km)
- St. Louis, MO – 30 miles (48 km)
- Washington, MO – 35 miles (56 km)
- Warrenton, MO – 40 miles (64 km)
- Union, MO – 45 miles (72 km)
- Hermann, MO – 45 miles (72 km)
- Alton, IL – 45 miles (72 km)
- Jefferson City, MO – 90 miles (145 km)
- Columbia, MO – 105 miles (169 km)
- Springfield, MO – 195 miles (314 km)
Top Attractions in Weldon Spring
- Weldon Spring Site Interpretive Center – An educational site explaining the history and environmental cleanup of the former Weldon Spring Ordnance Works and nearby uranium processing areas.
- Weldon Spring Conservation Area – A large natural area with wooded hills, streams, limestone features, hiking opportunities, and wildlife habitat.
- Katy Trail State Park – A major Missouri trail following the former railroad corridor along the Missouri River, popular for hiking, cycling, and scenic recreation.
- Missouri Bluffs State Park – A nearby state park featuring wooded hills, hiking trails, scenic overlooks, and views of the Missouri River valley.
- Busch Wildlife Conservation Area – A large conservation area with lakes, forests, grasslands, trails, fishing, hunting, and wildlife viewing.
- August A. Busch Memorial Conservation Area – A major outdoor destination near St. Charles with numerous lakes, trails, and habitats for birds and other wildlife.
- Historic Defiance – A nearby village along the Missouri River known for historic buildings, wineries, restaurants, and connections to early Missouri history.
- Daniel Boone Home – A nearby historic site preserving the home associated with frontiersman Daniel Boone and his family.
- Missouri River – The river forms a major geographic feature north of Weldon Spring and provides opportunities for fishing, boating, birdwatching, and scenic recreation.
- Historic Main Street St. Charles – A nearby historic district featuring preserved 19th-century buildings, museums, shops, restaurants, and riverfront attractions.
Airports Near Weldon Spring, MO
- Spirit of St. Louis Airport (SUS) – 15 miles
- St. Louis Lambert International Airport (STL) – 30 miles
- Warrenton Regional Airport (1MO) – 35 miles
- Washington Regional Airport (FYG) – 40 miles
- Columbia Regional Airport (COU) – 105 miles
Sources:
Population and area data sourced from the United States Census Bureau (2020 Census). General city information referenced from the official City of Weldon Spring website and local government records.
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