Kapurthala district is a district of Punjab state in northern India. The city of Kapurthala is the district headquarters.
Kapurthala District is one of the smallest districts of Punjab in terms of both area and population, with 754,521 people by the 2001 census. The district is divided into two noncontiguous parts, the main Kapurthala-Sultanpur Lodhi portion and the Phagwara tehsil or block.
The Kapurthala-Sultanpur Lodhi part lies between north latitude 31° 07' and 31° 22' and east longitude 75° 36'. In the north it is bound by Hoshiarpur, Gurdaspur, and Amritsar districts, in the west by the Beas River and Amritsar district, and in south by the Sutlej River, Jalandhar district, and Hoshiarpur district.
The district has three subdivisions/tehsils: Kapurthala, Phagwara, and Sultanpur Lodhi.