The capital of Deux-Sèvres is the town of Niort which boasts a rich architectural heritage with buildings spanning the Renaissance and medieval eras. The city is home to a castle with an impressive donjon (castle keep), which dates from the 12th century. \

The Donjon de Niort boasts an impressive collection of local artifacts and spectacular views across the town and Sèvre Niortaise.

Textiles, leather tanning and flour milling were once the traditional industries of Niort, but today it is an important centre in France for insurance and banking companies.