Set in the eastern part of Missouri, Arnold is a close-knit town, home to 21,036 residents as of the latest Census estimates.
Officially, Arnold is an incorporated city with its own municipal government. The community covers 11.53 square miles, giving it a balanced suburban layout with room to breathe at roughly 1,824 residents per square mile.
Live headlines via Google News — updates through the day.
Click a neighborhood to see it on the map.
Local spots mapped by the OpenStreetMap community.
Attractions mapped by the OpenStreetMap community.
Parks mapped by the OpenStreetMap community · "reviews" opens each park's live Google reviews.
Public schools, U.S. Dept. of Education (NCES) 2023–24 directory.