The present study was on attempt to investigate the academic learning environment at home and school, of coeducational high school students from English and Kannada medium schools and its influence on academic achievement. The study also aimed to know the influence of socio-economic factors on academic learning environment at home and school. The sample consisted of 240 students, selected from 8 coeducational high schools in Dharwad city, Karnataka state. The results revealed that students with English medium of instruction were significantly higher in students involvement, had higher qualified teachers in schools, received significantly better parental encouragement and care and had significantly better facilities in home (separate room to study, table, light, ventilation, and surrounding environment), had significantly better academic achievement than students of Kannada medium schools.. Further, home learning environment had positive and significant influence on school learning environment of students among Kannada medium schools. Socio-economic status of the family exhibited positive and significant influence on home learning environment and school learning environment of students of both Kannada and English medium schools.