Vadnais Heights is a city in Ramsey County, Minnesota, United States. The population was 12,302 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 8.24 square miles (21.34 km2), of which 6.98 square miles (18.08 km2) is land and 1.26 square miles (3.26 km2) is water. It borders the cities of Shoreview, Little Canada, White Bear Lake, Maplewood, North Oaks, and Gem Lake.
Interstate 35E, Interstate 694, U.S. Highway 61, and County Highway 96 are four of the main routes in Vadnais Heights.
Vadnais Heights has a humid continental climate. This hot-summer subtype is typical of south-central Minnesota and includes wet summers and dry cold winters.
White Bear Lake Area Public Schools (ISD 624) serves the majority of the area of Vadnais Heights, with the exception of the northwestern portion of the city served by Mounds View Public Schools (ISD 621). An elementary school in the White Bear Lake School District, Vadnais Heights Elementary, is located at Centerville Road and County Road E. Contrary to popular belief, the elementary school mascot is a wolf, not a bear. An independent charter school, the Academy for Sciences and Agriculture High School, is located by Vadnais Lake.
The city of Vadnais Heights has over 100 acres (0.40 km2) of parkland spread across 14 different parks.