Arnold, MO

united states

Arnold is a Jefferson County suburb about 20 miles south of St. Louis via I-55, with exits at Richardson Road and Jeffco Boulevard. Route 21 runs north-south through town, connecting to other county communities. Most residents commute north on I-55 to St. Louis for work, while long-distance travelers use Arnold as a stop between St. Louis and southern destinations. The Meramec River forms the city's southern border and provides fishing opportunities at Arnold City Park.