Onchan is situated in
Hooghly District of
West Bengal and is about 4 km south of Meria. The nearest town is Polba, a
taluk headquarters town of the district.
Paunan (west),
Raihat (east) and
Arsapota (south) are the nearby towns.
Bandel Church, Tarakeshwar Temple, Nandadulal Mandir, Chandannagar, Arambagh, Dhaniakhali, Imambara, Shandeswara Temple, Yeats Tomb, Mahisasurmardini Temple, Chinsurah and Bandemataram House are attractions nearby.
Netaji Subhash Chandra Bose International Airport is the nearest airport and Magra Railway Station is the nearest railhead.