As of 2001 India census, Pachapalayam had a population of 5937. Males constitute 50% of the population and females 50%. Pachapalayam has an average literacy rate of 69%, higher than the national average of 59.5%: male literacy is 76%, and female literacy is 61%. In Pachapalayam, 10% of the population is under 6 years of age.
| Coordinates | 10°58′N 76°54′ECoordinates: 10°58′N 76°54′E |
| Country | India |
| State | Tamil Nadu |
| District(s) | Coimbatore |
| Population | 7,937 (2001) |
| Time zone | IST (UTC+5:30) |
| Area | • 418 metres (1,371 ft) |
