The groundwater chemistry in the shallow aquifers of the coastal zone of Thiruvananthapuram district, Kerala, India have been examined in detail. Results, in general, indicate that the groundwaters is more or less deteriorated.

The present work accentuated the expediency of remote sensing and geographic information system (GIS) applications in groundwater studies, especially in the identification of groundwater potential zones in Ithikkara River Basin (IRB), Kerala, India.