|Time zone||IST (UTC+5:30)|
|Sex ratio||8746:9311 ♂/♀|
As of 2001[update] it had a population of 18,057 in 4,117 households. Males constitute 48% of the population and females 52%. Mulagumoodu has an average literacy rate of 82%, higher than the national average of 59.5%: male literacy is 83%, and Female Literacy is 80%. In Mulagumudu, 10% of the population is under 6 years of age.
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The Block Development Office of Thuckalay Union is located in between Mulagumoodu and Kozhipor Vilai. It is 1.5 km from Mulagumoodu Junction. Mulagumoodu-Colachel Road of 8 km length is the shortest land line connecting the NH 47 to the natural harbour Colachel. Mulagumoodu is known for its delicious Jack Fruits. St.Mary's Church Mulagumoodu is the Vicariate headquarters of the Catholic Diocese of Kottar. St.Mary's Church celebrated its 150 years of meaningful existence in September 2009. Belgium based ICM Sisters Foundation house is located in Mulagumoodu. Mother Marie Louise De Meester founded the Religious - Missionary Sisters of the Immaculati Cordis Mariae or the Immaculate Heart of Mary (ICM) in Mulagumoodu, India in 1897. St.Mary's Church and ICM Convent have considerably contributed to the socio-economic development of Mulagumoodu and its neighbourhood. Infant Jesus Training School with its solid presence has taken primary education to greater heights by training a lot of women teachers from Tamil Nadu. Pope John Paul College of Education, Mulagumoodu Community College, St.Joseph's Higher Secondary School, St.Joseph's Matriculation School and other academic institutions decorate Mulagumoodu as the Academic Centre of Kanyakumari District. Mulagumoodu Milk Producers Co-operative and Nanjil Dairy Centre are creating White Revolution in the District. The skill of local women in lace-making, trained by ICM sisters creates new records. There are a good number of cashew nut factories around. Mulagumoodu Tile Works dominated the market in the yester-years.
Vayakkarai one of the villages in mulagumoodu town panchayat is vayakkarai. This village was once considerably producing paddy grains dhals. Now those paddy fields are converted into rubber cultivating lands. There is a common pond called "pudhukulam" is storing the water during rainy season and panchayat channel water from pachiparai dam. Once the reservoir is full it will overflow. This overflowed water is cascading through some huge rocks which was naturally staked. This overflowed stream is called "kavarambu". In summer this reservoir water will be empty due to drought, overconsumption by using banana fields etc. That time the mass fishing by villagers using small net and some indigenous fishing equipment like "thoori".
- "View Population". Office of the Registrar General & Census Commissioner, India.
- "Census of India 2001: Data from the 2001 Census, including cities, villages and towns (Provisional)". Census Commission of India. Archived from the original on 2004-06-16. Retrieved 2008-11-01.