Gangnapur is located at 23°07′51″N 88°38′28″E / 23.130861°N 88.641167°E / 23.130861; 88.641167 NORTH 24 PGS district is mostly alluvial plains lying to the east of Hooghly River, locally known as Bhagirathi.

[1] The Ranaghat subdivision has the Bhagirathi on the west, with Purba Bardhaman and Hooghly districts lying across the river.

Topographically, Ranaghat subdivision is spread across the Krishnanagar-Santipur Plain, which occupies the central part of the district, and the Ranaghat-Chakdaha Plain, the low-lying area found in the south-eastern part of the district.

Gangnapur police stations have jurisdiction over Cooper's Camp and Ranaghat II CD block.

Among the civic amenities, it had 17 km roads with open drains, the protected water supply involved overhead tank, hand pump.

Among the social, recreational and cultural facilities it had 1 auditorium/ community hall, 1 public library.