The entomological survey was carried out to record different mosquito species in the Coimbatore district. This study was undertaken from January 2018 to December 2019 in selected areas of Coimbatore. The adult mosquitoes were collected using a Biogent-mosquito trap and collected mosquitoes were identified using standard keys. Totally 2474 mosquitoes belong to eight species in four genera. The maximum number of mosquitoes was collected from the Ramalingam colony followed by Thudiyalur and Koundampalayam. Aedes aegypti, Aedes albopictus, Culex quinquefasicatus and Armigeres subalbatus were consistently present throughout the study period. The diversity was found to be seasonal dependent, with some species being observed at a specific time point. Mosquitoes spatial relative abundance shows that Culex quinquefasciatus is the most abundant mosquito species independently of location. Aedes aegypti was predominant in Thudiyalur and Singanallur, Ae. albopictus was dominant in Ramanathapuram. Armigeres subalbatus were dominant in the Ramalingam colony respectively. The current study provides detailed information about the diversity of mosquito species in the selected areas of Coimbatore City. The species richness was high in Thudiyalur. Information on mosquito abundance can help to identify areas at higher risk of disease transmission.