| Arimalam | |
| Settlement Type: | Town panchayat |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 10.2574°N 78.8894°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Pudukkottai |
| Unit Pref: | Metric |
| Elevation M: | 66 |
| Population Total: | 7811 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil, English |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 622201 |
| Area Code Type: | Telephone code |
| Area Code: | 04333 |
| Registration Plate: | TN 55 |
| Website: | www.arimalam.in |
Arimalam is a Town Panchayath in the district of Pudukkottai, in the state of Tamil Nadu, India. As of 2011 Census, the town had a population of 19,948.
Arimalam is located at 10.2574°N 78.8894°W. It has an average elevation of 66 metres (216 feet). It is 22 kilometers away from Pudukkottai and is well connected by public transport.
Arimalam is part of an area that saw rulers from the Chola dynasty, Pandyan dynasty, and the Thondaiman dynasty. It became part of the princely state of Pudukkottai under British rule.
As of the 2011 Indian census, The Arimalam city is divided into 15 wards for which elections are held every 5 years. The Arimalam Town Panchayat has population of 19,948 of which 10,552 are males while 9,448 are females as per report released by Census India 2015.
Population of Children with age of 0-6 is 890 which is 9.95% of total population of Arimalam (TP). In Arimalam Town Panchayat, Female Sex Ratio is of 1004 against state average of 996. Moreover, Child Sex Ratio in Arimalam is around 1,055 compared to Tamil Nadu state average of 943.
Literacy rate of Arimalam city is 78.98% lower than state average of 80.09%. In Arimalam, Male literacy is around 87.25% while female literacy rate is 70.69%.
Arimalam Town Panchayat has total administration over 2,184 houses to which it supplies basic amenities like water and sewerage. It is also authorized to build roads within Town Panchayat limits and impose taxes on properties coming under its jurisdiction.