The present study was conducted to understand the Physico-chemical parameters viz., Temperature, Salinity, pH, Dissolved Oxygen, Alkalinity, Hardness, Nitrite- Nitrogen, Nitrate-Nitrogen and Ammonia in 15 semi-intensive shrimp culture ponds (5 at Ananthavaram, 5 at Madanur and 5 at Pakala villages) of Prakasam district, Andhra Pradesh, India. Temperature ranged from 26.5 ºC to 28 ºC in the ponds. Low salinity (10.5ppt) was observed in Madanur ponds and high (39.0ppt) in Pakala ponds. PH varied from 7.56 to 8.7. Dissolved oxygen varied from 4.4 to 8.6 mg/l. Minimum values of dissolved oxygen were recorded at Madanur village pond and maximum in Ananthavaram ponds. The alkalinity was minimum (124mg/l) in the ponds of Pakala and maximum (230mg/l) in Madanur ponds. The hardness ranged from 2640 to 6722mg/l. The nitrite-nitrogen was minimum (0.01) in Madanur ponds and maximum (0.80) in Ananthavaram ponds. The nitrate- nitrogen was minimum (2.48mg/l) in Pakala ponds and maximum (6.34mg/l) in Madanur ponds. The ammonia values were 0.02 to 2.0 mg/l.