Silsbee is a town in Hardin County, Texas, United States. This city is one hundred and three miles northeast of Houston. The population was 6,611 at the 2010 census. It is part of the Beaumont–Port Arthur metropolitan area.
Silsbee is located in eastern Hardin County at 30°20′53″N 94°10′49″W (30.348095, -94.180220). U.S. Route 96, a four-lane bypass, forms the southeast border of the city; the highway leads northeast 50 miles (80 km) to Jasper and south 20 miles (32 km) to Beaumont. Houston is 104 miles (167 km) southwest of Silsbee via Beaumont. Texas State Highway 327 runs through downtown Silsbee south of the city center, leading east to US 96 and west 9 miles (14 km) to Kountze, the Hardin county seat.
According to the United States Census Bureau, Silsbee has a total area of 7.7 square miles (20.0 km2), of which 0.04 square miles (0.1 km2), or 0.64%, are water.
Silsbee was first referred to as "Mill Town" when the site was reached by the Gulf, Beaumont, and Kansas City Railway in 1894. The town was renamed in recognition of Nathaniel Silsbee, an investor from Boston, Massachusetts, who helped provide funds for the railway.