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District of Tamil Nadu

Theni District Population 2026

Population · 1 March 2026

≈ 13.21 lakh Estimate Our estimate, method M1, constrained to the official state projection 1 March 2026 How this is made →

13,21,000 1.32 million 1 March 2026

Theni district's population is estimated at ≈13.21 lakh (13,21,000) on 1 March 2026. This is our estimate, tied to the official Tamil Nadu projection; Census 2011, the last count, recorded 12,45,899.

Estimate: method M1, constrained to the RGI projection for Tamil Nadu. Census: ORGI.

Which number do you mean?

District totals include villages. Here is how the 2011 population splits between towns and villages.

District

Theni district

Census 2011
12,45,899
2026 Estimate Our estimate, method M1, constrained to the official state projection How this is made →
≈ 13.21 lakh

Urban population

Towns (urban)

Census 2011
6,70,481

Rural

Villages (rural)

Census 2011
5,75,418

Key figures

Population 2026
≈ 13.21 lakh 13,21,000 Estimate Our estimate, method M1, constrained to the official state projection How this is made →
Census 2011
12.46 lakh 12,45,899 Census 2011 Final count, Census of India 2011 (ORGI) How this is made →
Density
434per km² 2011
Sex ratio
991 Tamil Nadu: 996
Child sex ratio (0–6)
934 Tamil Nadu: 943
Literacy rate
77.3% Male 85.0% · Female 69.5%
Urban share
53.8% Tamil Nadu: 48.4%
Growth 2001–11
+13.9% Tamil Nadu: +15.6%
Area
2,868km² Census 2011
Households
3.38 lakh 3.7 people per household
Villages
98 Census 2011
Towns
28 Census 2011

Where it ranks

Population over time

Census counts on 2011 boundaries, then our estimate to 2036.

Theni: Population over time
  • Census
  • Estimate
13 L 2026
› Show the numbers as a table
YearPopulation
19515,84,430
19616,54,303
19718,10,065
19819,28,745
199110,49,323
200110,93,950
201112,45,899
2016 *12,83,000
2021 *13,08,000
2026 *13,21,000
2031 *13,23,000
2036 *13,16,000

* Estimate

How Theni's 2011 population was spread

Sub-districts (tehsils, talukas, mandals or blocks) as they were in Census 2011. “Part” means only some of it now lies in this district.

How Theni's 2011 population was spread
#
1 Uthamapalayam4,35,06934.9%100477.9%67.3%
2 Periyakulam2,17,35817.4%97877.4%52.7%
3 Andipatti2,12,70017.1%97271.5%12.8%
4 Theni 1,99,98316.1%99382.1%62.8%
5 Bodinayakanur1,80,78914.5%99977.0%60.9%

Largest towns in Theni (Census 2011)

Largest towns in Theni (Census 2011)
  1. Theni Allinagaram 94,453
  2. Bodinayakanur 75,675
  3. Kambam 68,090
  4. Periyakulam 42,976
  5. Chinnamanur 42,305
  6. Gudalur 41,915
  7. Uthamapalayam 29,050
  8. Andipatti Jakkampatti 27,287
  9. Devadanapatti 19,285
  10. Veerapandi 16,158

How people in Theni worked (Census 2011)

Cultivators

6.5%

Agricultural labourers

53.3%

Household industry

2.5%

Other work

37.7%

Share of all workers, main and marginal. Work participation: 47.5%.

Age structure of Theni

Population in five-year age groups, Census 2011. Men on the left, women on the right. Census 2011 Census 2011, as published. How this is made →

Age structure of Theni
MenWomen
  1. 80+
  2. 75-79
  3. 70-74
  4. 65-69
  5. 60-64
  6. 55-59
  7. 50-54
  8. 45-49
  9. 40-44
  10. 35-39
  11. 30-34
  12. 25-29
  13. 20-24
  14. 15-19
  15. 10-14
  16. 5-9
  17. 0-4
› Show the numbers as a table
AgeMenWomen
0-443,23940,721
5-949,03744,788
10-1459,46353,202
15-1958,28051,755
20-2453,06453,260
25-2955,16656,948
30-3447,91749,401
35-3949,18353,954
40-4445,09544,652
45-4942,64340,719
50-5432,55831,488
55-5926,36628,034
60-6424,73326,822
65-6915,60117,740
70-7412,03713,470
75-795,4765,822
80+5,2306,890
Children (0–14)
23.3%
Tamil Nadu 23.6%
Working age (15–59)
65.9%
Tamil Nadu 66.0%
Older people (60+)
10.8%
Tamil Nadu 10.4%
Median age
30.2years
Tamil Nadu 29.8
Dependency ratio
42.7
children and 65+ per 100 aged 15–64
Tamil Nadu 43.2

Languages spoken in Theni

Share of people by mother tongue, grouped into languages as the Census does. 19 languages recorded. Census 2011 Census 2011, as published. How this is made →

Languages spoken in Theni
  1. Tamil 79.0%
  2. Telugu 12.7%
  3. Kannada 7.9%
  4. Urdu 0.1%
  5. Malayalam 0.1%
  6. Gujarati 0.1%
  7. Marathi 0.0%
  8. Hindi 0.0%

Largest mother tongues

  1. Tamil79.0%
  2. Telugu12.7%
  3. Kannada7.9%
  4. Urdu0.1%
  5. Malayalam0.1%
  6. Saurashtra/Saurashtri0.1%
  7. Marathi0.0%
  8. Hindi0.0%

Housing and amenities in Theni

Share of households, Houselisting Census 2011. Census 2011 Census 2011, as published. How this is made →

Basic services

  • Electricity for lighting 91.6%

    Tamil Nadu 93.4%

  • Tap water 93.9%

    Tamil Nadu 79.8%

  • Water source within premises 39.3%

    Tamil Nadu 35.1%

  • Toilet within premises 39.3%

    Tamil Nadu 48.5%

  • Open defecation (no latrine) (Lower is better for this one.) 40.1%

    Tamil Nadu 45.5%

  • Bathing area within premises 80.8%

    Tamil Nadu 64.3%

  • Closed drainage 22.4%

    Tamil Nadu 25.6%

  • Cooking with LPG/PNG 43.3%

    Tamil Nadu 48.1%

  • Cooking with wood, crop waste or dung (Lower is better for this one.) 45.2%

    Tamil Nadu 44.1%

What households own

  • Mobile phone 57.9%

    Tamil Nadu 69.3%

  • Television 85.6%

    Tamil Nadu 87.0%

  • Scooter or motorcycle 17.0%

    Tamil Nadu 32.4%

  • Computer or laptop 5.6%

    Tamil Nadu 10.7%

  • Car, jeep or van 1.9%

    Tamil Nadu 4.3%

  • Use banking services 43.4%

    Tamil Nadu 52.6%

  • None of the listed assets (Lower is better for this one.) 7.7%

    Tamil Nadu 5.1%

The home itself

  • Own their home 71.4%

    Tamil Nadu 74.4%

  • Rent their home 22.9%

    Tamil Nadu 23.5%

  • Permanent (pucca) house 74.6%

    Tamil Nadu 70.8%

  • House in good condition 66.0%

    Tamil Nadu 70.2%

  • Concrete roof 40.8%

    Tamil Nadu 43.8%

  • Cement or tiled floor 85.7%

    Tamil Nadu 79.8%

  • One room or less (Lower is better for this one.) 49.6%

    Tamil Nadu 48.1%

Tamil Nadu

What the numbers say

  • Theni district held 1.7% of Tamil Nadu's population in 2011, 29th of 38 districts.
  • Literacy is 77.3%, 2.8 points below the Tamil Nadu average of 80.1%.
  • The gender gap in literacy is wide: 85.0% of men but only 69.5% of women could read and write in 2011.
  • 53.8% of residents lived in towns in 2011, more urban than Tamil Nadu as a whole (48.4%).
  • Our 2026 estimate, ≈13.21 lakh, implies growth of about 6% since 2011; it is tied to the official Tamil Nadu projection.
  • Its largest town, Theni Allinagaram, had 94.5 thousand people in 2011, 7.6% of the district.

Compare with

All districts of Tamil Nadu →

Census 2027 status

Results pending

  1. Phase I: houselisting

    Done (1 August 2026 – 30 August 2026)

  2. Phase II: counting people

    February 2027 (reference date 1 March 2027)

  3. Results

    Not yet released. In 2011, first figures came about a month after counting ended.

When the Registrar General publishes Census 2027 figures for Theni, they will appear on this page, at this address. Census 2027 explained →

Population by religion in Theni (Census 2011)

Official figures as published by the Office of the Registrar General. Shown without commentary. Census 2011 Census 2011, as published. How this is made →

Population by religion in Theni (Census 2011)
ReligionPersonsShareTamil Nadu
Hindu 11,48,990 92.2% 87.6%
Muslim 56,751 4.6% 5.9%
Christian 37,574 3.0% 6.1%
Sikh 152 0.0% 0.0%
Buddhist 79 0.0% 0.0%
Jain 28 0.0% 0.1%
Other religions and persuasions 74 0.0% 0.0%
Religion not stated 2,251 0.2% 0.3%
Total12,45,899100%

Frequently asked questions

What is the population of Theni district in 2026?
Our estimate for 1 March 2026 is ≈13,21,000 (13.21 lakh). It is not an official figure: it applies Theni's 2001–2011 trend, damped, to the official Tamil Nadu projection (method M1). Census 2011 counted 12,45,899.

What was the population of Theni district in Census 2011?
12,45,899: 6,25,683 males and 6,20,216 females, of whom 6,70,481 lived in towns and 5,75,418 in villages.

What is the literacy rate and sex ratio of Theni?
Literacy was 77.3% in 2011 (men 85.0%, women 69.5%). The sex ratio was 991 females per 1,000 males, and 934 among children aged 0–6.

Which is the largest town in Theni district?
Theni Allinagaram, with 94,453 people in Census 2011.

How many villages and towns are in Theni district?
On today's boundaries the district contains 98 Census 2011 villages and 28 towns.

⤓ Download Tamil Nadu district data (CSV)

Sources and method

Data updated: · Report a correction