| Sainthamaruthu | |
| Native Name: | Tamil: சாய்ந்தமருது Sinhala; Sinhalese: සායින්දමරුදු |
| Native Name Lang: | Tamil |
| Settlement Type: | Town |
| Pushpin Map: | Sri Lanka |
| Pushpin Map Size: | 180px |
| Pushpin Map Caption: | Location in Sri Lanka |
| Pushpin Label Position: | left |
| Coordinates: | 7.3939°N 81.8339°W |
| Subdivision Type: | Country |
| Subdivision Name: | Sri Lanka |
| Subdivision Type1: | Province |
| Subdivision Name1: | Eastern Province |
| Subdivision Type2: | Administrative District |
| Subdivision Name2: | Ampara District |
| Subdivision Type3: | D.S Division |
| Subdivision Name3: | Sainthamarathu Divisional Secretariat |
| Subdivision Type4: | Divisional Secretary |
| Subdivision Name4: | A. L. M. Saleem |
| Leader Title: | Electoral District |
| Leader Name: | Ampara |
| Leader Title1: | Polling Division |
| Leader Name1: | Kalmunai |
| Governing Body: | Kalmunai Municipal Council (Local Authority) |
| Leader Title2: | Member of parliament |
| Leader Name2: | H. M. M. Harees (SLMC) |
| Leader Title3: | Member of Provincial Council |
| Leader Title4: | Mayor |
| Area Total Km2: | 9 |
| Population As Of: | 2011[1] |
| Population Total: | 25,412 |
| Population Density Km2: | 3000 |
| Timezone: | SLST |
| Utc Offset: | +05:30 |
| Elevation M: | 1 |
| Postal Code Type: | Postal code |
| Postal Code: | 32280 |
| Area Code: | 067 |
Sainthamaruthu (Tamil: சாய்ந்தமருது|translit=Cāyntamarutu; Sinhala; Sinhalese: සායින්දමරුදු|translit=Sāyindamarudu) is a coastal town in Sri Lanka, with a population of 25,412.[2] It is located on the east coast of Ampara District of Eastern Province, Sri Lanka. Sri Lankan Muslims are the majority population, according to the Department of Census and Statistics October 2007.[3]
Sainthamaruthu is located in the middle of other municipalities such as Sammanthurai on the west, Kalmunai on the North, Karativu on the south, and the eastern border with the Bay of Bengal.
Sainthamaruthu DS division has 16 Grama Niladhari Divisions.[4] It is bordered by Kalmunai DS division to the north, the sea on the east, Karaitivu DS division to the south and Sammanthurai to the west. 50.4% of the population are men and 49.6% are women. Forty-two percent of the population is less than 18 years old, 48% of the population is between the age of 19-64 and 10% of the population is above 65 years of age. The population density of the division is 3072/sq km.
Sainthamaruthu is highly urbanised and congested due to increasing commercial activities in the main urban areas of the town. The eastern site is potential for fishing and western site is fully engaged with paddy cultivation.
Sainthamaruthu is well endowed with many natural resources. Fisheries, agriculture, and services contribute significantly to the local economy; and trade also plays an important role. It started with petty trade in the early history of the division and nowadays, has expanded to large-scale trading. In early times, fishery activities took place using traditional craft (Katumarang) and ordinary seines and now activity has expanded to deep sea fishing.
Many people living here are engaged in agriculture, fisheries and various other sectors. About 13% of the population is unemployed and many of the workers are poorly paid.
The main agricultural crop is paddy. Around 1132 acres of land are cultivated annually within the division and most of the farmers’ paddy land is situated in the outside of the Sainthamaruthu.
The main sources of income in the local economy of Sainthamaruthu: