Guadalajara is a city and municipality in Castilla–La Mancha, an autonomous community in central Spain. It serves as the capital of the Province of Guadalajara, making it the administrative center for the region.
The city is situated in the interior of Spain, part of the larger Castilian plateau region. As the provincial capital, Guadalajara functions as the primary urban center for its province, though it remains considerably smaller and less internationally known than Spain's major metropolitan areas.