Joypurhat Sadar (Bengali: জয়পুরহাট সদর) is an Upazila of Joypurhat District in the Division of Rajshahi, Bangladesh.
Joypurhat Sadar is located at 25°06′N 89°02′E / 25.100°N 89.033°E / 25.100; 89.033 . It has 45484 households and total area 238.54 km².
As of the 1991 Bangladesh census, Joypurhat Sadar has a population of 225271. Males constitute 52.18% of the population, and females 47.82%. This Upazila's eighteen up population is 123804. Joypurhat Sadar has an average literacy rate of 33.1% (7+ years), and the national average of 32.4% literate.
Joypurhat Sugar Mills Limited is the largest autonomous sugar mill in the country. Pagla Dewan Boddhovumi is one of Bangladesh's most important monuments In the Belamla Village there are both the historical "Barashibalaya Temple" and "Akshibalaya Temple", famous historical places. Shahid doctor Abul Kasem Maidan is the main feature of this upazilla. The central shahid minar of Joypurahat district is also situated here.