According to Census 2011, Tamil Nadu has population of 7.21 Crores, an increase from figure of 6.24 Crore in 2001 census. Total population of Tamil Nadu as per 2011 census is 72,147,030 of which male and female are 36,137,975 and 36,009,055 respectively. In 2001, total population was 62,405,679 in which males were 31,400,909 while females were 31,004,770. The total population growth in this decade was 15.61 percent while in previous decade it was 11.19 percent. The population of Tamil Nadu forms 5.96 percent of India in 2011. In 2001, the figure was 6.07 percent.
 Male |
36,137,975 | 50.08% |
 Female |
36,009,055 | 49.91% |
| Male |
28,040,491 | 86.77% | |
| Female |
23,797,016 | 73.44% |
| Male |
15.09% | |||||
| Female |
16.14% |
| Male |
38,20,276 | 51.45% |
| Female |
36,03,556 | 48.54% |
 Sex Ratio |
943/1000 |
 Rural |
37,229,590 | 51.60% | |
 Urban |
34,917,440 | 48.40% | |
 Total |
72,147,030 | 100% |
 Hindu |
6.31 Crores | 87.58% | |
.svg) Muslim |
42.29 Lakhs | 5.86% | |
 Christian |
44.18 Lakhs | 6.12% |
| Chennai | 4,646,732 | |||||
| Kancheepuram | 3,998,252 | |||||
| Vellore | 3,936,331 | |||||
| Thiruvallur | 3,728,104 | |||||
| Salem | 3,482,056 |
| Kanniyakumari | 91.75% | ||||
| Chennai | 90.18% | ||||
| Thoothukkudi | 86.16% | ||||
| The Nilgiris | 85.20% | ||||
| Kancheepuram | 84.49% |
| The Nilgiris | 1041 | |||||
| Thanjavur | 1031 | |||||
| Nagapattinam | 1025 | |||||
| Thoothukkudi | 1024 | |||||
| Tirunelveli | 1024 |
tamilnadu Population Census 2011
As per details from Census 2011, Tamil Nadu has population of 7.21 Crores, an increase from figure of 6.24 Crore in 2001 census. Total population of Tamil Nadu as per 2011 census is 72,147,030 of which male and female are 36,137,975 and 36,009,055 respectively. In 2001, total population was 62,405,679 in which males were 31,400,909 while females were 31,004,770. The total population growth in this decade was 15.61 percent while in previous decade it was 11.19 percent. The population of Tamil Nadu forms 5.96 percent of India in 2011. In 2001, the figure was 6.07 percent.
tamilnadu Literacy Rate Census 2011
Literacy rate in Tamil Nadu has seen upward trend and is 80.09 percent as per 2011 population census. Of that, male literacy stands at 86.77 percent while female literacy is at 73.44 percent. In 2001, literacy rate in Tamil Nadu stood at 73.45 percent of which male and female were 82.42 percent and 64.43 percent literate respectively. In actual numbers, total literates in Tamil Nadu stands at 51,837,507 of which males were 28,040,491 and females were 23,797,016.
tamilnadu Decadal Growth Rate Census 2011
In 2011, population decadal growth for tamilnadu was 15.61 %. Population decadal growth of tamilnadu male 15.09% and female 16.14%.
According to the Census of India, Ministry of Home Affairs, the decade of 2001 to 2011 is the 1st decade post Indian Independence, which added least number of people to the country's population. The percentage of decadal growth in the nation, for the first time, showed a decrease by 3.90 % since, the present Census of India 2011 has registered the rate to be 17.64 % from the rate of 21.54 % in the earlier Census conducted in the year 2001
tamilnadu Sex Ratio and child sex ratio Census 2011
Sex Ratio in tamilnadu is 996 i.e. for each 1000 male, which is below national average of 940 as per census 2011.
Child Sex Ratio in tamilnadu is 943 i.e. for each 1000 male,In the census 2001 the child sex ratio of India was 927 which declined to 919 in the census 2011. As per the census 2011, Arunachal Pradesh has the highest child sex ratio among the Indian states i.e. 972 while Haryana has the lowest child sex ratio i.e.834 per thousand males.
Religious Data in tamilnadu census 2011
The Registrar General and Census Commissioner, India today released the data on Population by Religious Communities of Census 2011. The distribution is total population by six major religious communities namely, Hindu, Muslim, Christian, Sikh, Buddhist, Jain besides “Other Religions and Persuasions” and “Religion not stated”. The data are released by sex and residence up to sub-districts and towns. Total Population in 2011 is 121.09 crores ; Hindu 96.63 crores (79.8%); Muslim 17.22 crores (14.2%); Christian 2.78 crores (2.3%); Sikh 2.08 crores (1.7%); Buddhist 0.84 crores (0.7%); Jain 0.45 crores (0.4%), Other Religions & Persuasions (ORP) 0.79 crores (0.7%) and Religion Not Stated 0.29 crores (0.2%).
Hinduism is majority religion in state of Tamil Nadu with 87.58 % followers. Christianity is second most popular religion in Tamil Nadu state with 6.12 % following it. In Tamil Nadu state, Islam is followed by 5.86 %, Jainism by 0.12 %, Sikhism by 0.02 % and Buddhism by 0.02 %. Around 0.01 % stated 'Other Religion', approximately 0.26 % stated 'No Particular Religion'.
Rural population in tamilnadu census 2011
Of the total population of Tamil Nadu state, around 51.60 percent live in the villages of rural areas. In actual numbers, males and females were 18,679,065 and 18,550,525 respectively. Total population of rural areas of Tamil Nadu state was 37,229,590. The population growth rate recorded for this decade (2001-2011) was 51.60%. In rural regions of Tamil Nadu state, female sex ratio per 1000 males was 993 while same for the child (0-6 age) was 936 girls per 1000 boys. In Tamil Nadu, 3,911,302 children (0-6) live in rural areas. Child population forms 10.51 percent of total rural population. In rural areas of Tamil Nadu, literacy rate for males and female stood at 82.04 % and 64.55 %. Average literacy rate in Tamil Nadu for rural areas was 73.54 percent. Total literates in rural areas were 24,502,195.
Urban population in tamilnadu census 2011
Out of total population of Tamil Nadu, 48.40% people live in urban regions. The total figure of population living in urban areas is 34,917,440 of which 17,458,910 are males and while remaining 17,458,530 are females. The urban population in the last 10 years has increased by 48.40 percent. Sex Ratio in urban regions of Tamil Nadu was 1000 females per 1000 males. For child (0-6) sex ratio the figure for urban region stood at 952 girls per 1000 boys. Total children (0-6 age) living in urban areas of Tamil Nadu were 3,512,530. Of total population in urban region, 10.06 % were children (0-6). Average Literacy rate in Tamil Nadu for Urban regions was 87.04 percent in which males were 91.80% literate while female literacy stood at 82.31%. Total literates in urban region of Tamil Nadu were 27,335,312.