| Udayarpalayam | |
| — city — | |
| Coordinates | |
| Country | India |
| State | Tamil Nadu |
| District(s) | Ariyalur |
| Population | 11,325 (2001[update]) |
| Time zone | IST (UTC+05:30) |
Udayarpalayam is a panchayat town in Ariyalur district in the Indian state of Tamil Nadu.
As of 2001[update] India census,[1] Udayarpalayam had a population of 11,325. Males constitute 51% of the population and females 49%. Udayarpalayam has an average literacy rate of 62%, higher than the national average of 59.5%: male literacy is 73%, and female literacy is 52%. In Udayarpalayam, 13% of the population is under 6 years of age.