As of 2011[update] India census, A Medihalli had a population of 451. Males constitute 236 of the population and females 215. Kannada is the official and most widely spoken language in A Medihalli. A Medihalli has an average literacy rate of 77 percent, higher than the national average of 59.5 percent, with 76.69 percent of the males and 58.60 percent of females literate.