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District of Tamil Nadu

Thiruvallur District Population 2026

Population · 1 March 2026

≈ 38.39 lakh Estimate Our estimate, method M1, constrained to the official state projection 1 March 2026 How this is made →

38,39,000 3.84 million 1 March 2026

Thiruvallur district's population is estimated at ≈38.39 lakh (38,39,000) on 1 March 2026. This is our estimate, tied to the official Tamil Nadu projection; Census 2011, the last count, recorded 31,82,032 on the district’s present boundaries.

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

Which number do you mean?

The district, the city and the metro area are three different areas. Pick the one you mean.

City

Ambattur (municipal limits)

Census 2011
4,66,205
2026 Estimate Our estimate, method M1, constrained to the official state projection How this is made →
≈ 5.7 lakh

District

Thiruvallur district

Census 2011
31,82,032
2026 Estimate Our estimate, method M1, constrained to the official state projection How this is made →
≈ 38.39 lakh

Key figures

Population 2026
≈ 38.39 lakh 38,39,000 Estimate Our estimate, method M1, constrained to the official state projection How this is made →
Census 2011
31.82 lakh 31,82,032 Reconstructed Census figures re-added on today’s boundaries How this is made →
Density
≈ 942per km² 2011
Sex ratio
989 Tamil Nadu: 996
Child sex ratio (0–6)
947 Tamil Nadu: 943
Literacy rate
83.3% Male 89.2% · Female 77.3%
Urban share
59.3% Tamil Nadu: 48.4%
Growth 2001–11
+35.3% Tamil Nadu: +15.6%
Area
≈ 3,379km² approx., from 2011 sub-district areas
Households
8.09 lakh 3.9 people per household
Villages
615 Census 2011
Towns
48 Census 2011

Where it ranks

Population over time

Census figures re-added on today’s boundaries (parts of earlier districts apportioned by their 2011 population), then our estimate to 2036.

Thiruvallur: Population over time
  • Reconstructed
  • Estimate
42 L 2026
› Show the numbers as a table
YearPopulation
199119,10,688
200123,51,255
201131,82,032
2016 *34,22,000
2021 *36,40,000
2026 *38,39,000
2031 *40,15,000
2036 *41,68,000

* Estimate

How Thiruvallur'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 Thiruvallur's 2011 population was spread
#
1 Ambattur9,06,58028.5%98091.0%94.0%
2 Poonamallee6,59,92220.7%98088.8%90.1%
3 Thiruvallur4,07,04812.8%99680.2%28.8%
4 Ponneri3,89,86212.3%99779.5%37.5%
5 Pallipattu2,14,0736.7%98874.6%29.0%
6 Tiruttani2,11,2916.6%100173.7%21.2%
7 Gummidipoondi1,90,5416.0%98971.9%16.4%
8 Uthukkottai1,52,6314.8%102269.4%8.3%
9 Mathavaram(part)50,0841.6%99385.9%52.6%

Largest towns in Thiruvallur (Census 2011)

Largest towns in Thiruvallur (Census 2011)
  1. Ambattur 4,66,205
  2. Avadi 3,45,996
  3. Maduravoyal 86,195
  4. Tiruverkadu 64,698
  5. Poonamallee 60,607
  6. Nerkunram CT 59,790
  7. Thiruvallur 56,074
  8. Ramapuram CT 52,295
  9. Valasaravakkam 47,378
  10. Porur 46,690

How people in Thiruvallur worked (Census 2011)

Cultivators

5.4%

Agricultural labourers

20.1%

Household industry

4.0%

Other work

70.5%

Share of all workers, main and marginal. Work participation: 41.9%.

Age structure of Thiruvallur

Population in five-year age groups, Census 2011. Men on the left, women on the right. Census 2011, approx. Census 2011 on today’s boundaries; approximate, because some 2011 units were split between districts and are apportioned by population. How this is made →

Age structure of Thiruvallur
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
0-41,27,7691,20,955
5-91,24,6241,18,877
10-141,34,3361,27,123
15-191,37,3621,28,992
20-241,46,0021,54,825
25-291,55,1101,67,313
30-341,41,8941,39,420
35-391,36,7411,38,980
40-441,17,7101,09,136
45-491,03,46498,287
50-5480,00775,224
55-5963,95061,501
60-6453,61552,750
65-6931,41933,720
70-7423,21824,652
75-7911,34312,378
80+10,67714,888
Children (0–14)
23.7%
Tamil Nadu 23.6%
Working age (15–59)
67.8%
Tamil Nadu 66.0%
Older people (60+)
8.5%
Tamil Nadu 10.4%
Median age
29.2years
Tamil Nadu 29.8
Dependency ratio
40.5
children and 65+ per 100 aged 15–64
Tamil Nadu 43.2

Languages spoken in Thiruvallur

Share of people by mother tongue, grouped into languages as the Census does. 49 languages recorded. Census 2011, approx. Census 2011 on today’s boundaries; approximate, because some 2011 units were split between districts and are apportioned by population. How this is made →

Languages spoken in Thiruvallur
  1. Tamil 83.3%
  2. Telugu 11.7%
  3. Malayalam 1.5%
  4. Urdu 1.4%
  5. Hindi 1.1%
  6. Kannada 0.3%
  7. Marathi 0.2%
  8. Odia 0.1%
  9. All other languages 0.3%

Largest mother tongues

  1. Tamil83.3%
  2. Telugu11.7%
  3. Malayalam1.5%
  4. Urdu1.4%
  5. Hindi1.0%
  6. Kannada0.3%
  7. Marathi0.2%
  8. Odia0.1%

Housing and amenities in Thiruvallur

Share of households, Houselisting Census 2011. Reconstructed Census 2011, added up on today’s boundaries from village, town or sub-district records. How this is made →

Basic services

  • Electricity for lighting 96.6%

    Tamil Nadu 93.4%

  • Tap water 68.1%

    Tamil Nadu 79.8%

  • Water source within premises 35.2%

    Tamil Nadu 35.1%

  • Toilet within premises 63.5%

    Tamil Nadu 48.5%

  • Open defecation (no latrine) (Lower is better for this one.) 34.6%

    Tamil Nadu 45.5%

  • Bathing area within premises 81.5%

    Tamil Nadu 64.3%

  • Closed drainage 32.0%

    Tamil Nadu 25.6%

  • Cooking with LPG/PNG 65.0%

    Tamil Nadu 48.1%

  • Cooking with wood, crop waste or dung (Lower is better for this one.) 26.7%

    Tamil Nadu 44.1%

What households own

  • Mobile phone 74.2%

    Tamil Nadu 69.3%

  • Television 91.4%

    Tamil Nadu 87.0%

  • Scooter or motorcycle 38.9%

    Tamil Nadu 32.4%

  • Computer or laptop 18.5%

    Tamil Nadu 10.7%

  • Car, jeep or van 5.9%

    Tamil Nadu 4.3%

  • Use banking services 56.1%

    Tamil Nadu 52.6%

  • None of the listed assets (Lower is better for this one.) 2.9%

    Tamil Nadu 5.1%

The home itself

  • Own their home 70.8%

    Tamil Nadu 74.4%

  • Rent their home 28.2%

    Tamil Nadu 23.5%

  • Permanent (pucca) house 79.8%

    Tamil Nadu 70.8%

  • House in good condition 74.5%

    Tamil Nadu 70.2%

  • Concrete roof 60.3%

    Tamil Nadu 43.8%

  • Cement or tiled floor 86.0%

    Tamil Nadu 79.8%

  • One room or less (Lower is better for this one.) 40.7%

    Tamil Nadu 48.1%

Tamil Nadu

What the numbers say

  • Thiruvallur district held 4.4% of Tamil Nadu's population in 2011, 4th of 38 districts.
  • Literacy is 83.3%, 3.2 points above the Tamil Nadu average of 80.1%.
  • 59.3% of residents lived in towns in 2011, more urban than Tamil Nadu as a whole (48.4%).
  • The population grew 35.3% in 2001–11, faster than Tamil Nadu's 15.6% (on today’s boundaries).
  • Our 2026 estimate, ≈38.39 lakh, implies growth of about 21% since 2011; it is tied to the official Tamil Nadu projection.
  • Its largest town, Ambattur, had 4.66 lakh people in 2011, 14.7% of the district.

How this district was formed

Thiruvallur covers land that was part of these districts in Census 2011:

  • Thiruvallur (2011) 100.0% of this district
    85.4% of the 2011 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 Thiruvallur, they will appear on this page, at this address. Census 2027 explained →

Population by religion in Thiruvallur (Census 2011)

Official figures as published by the Office of the Registrar General. Shown without commentary. Reconstructed Census 2011 on today’s boundaries; approximate, because some 2011 units were split between districts and are apportioned by population. How this is made →

Population by religion in Thiruvallur (Census 2011)
ReligionPersonsShareTamil Nadu
Hindu ≈ 28,66,400 90.1% 87.6%
Muslim ≈ 1,10,200 3.5% 5.9%
Christian ≈ 1,84,800 5.8% 6.1%
Sikh ≈ 1,100 0.0% 0.0%
Buddhist ≈ 700 0.0% 0.0%
Jain ≈ 2,600 0.1% 0.1%
Other religions and persuasions ≈ 400 0.0% 0.0%
Religion not stated ≈ 15,800 0.5% 0.3%
Total31,82,032100%

Frequently asked questions

What is the population of Thiruvallur district in 2026?
Our estimate for 1 March 2026 is ≈38,39,000 (38.39 lakh). It is not an official figure: it applies Thiruvallur's 2001–2011 trend, damped, to the official Tamil Nadu projection (method M1). Census 2011 counted 31,82,032.

What was the population of Thiruvallur district in Census 2011?
31,82,032: 15,99,884 males and 15,82,148 females, of whom 18,87,957 lived in towns and 12,94,075 in villages. These figures are on the district’s current boundaries, rebuilt from Census 2011 village and town records.

What is the literacy rate and sex ratio of Thiruvallur?
Literacy was 83.3% in 2011 (men 89.2%, women 77.3%). The sex ratio was 989 females per 1,000 males, and 947 among children aged 0–6.

Which is the largest town in Thiruvallur district?
Ambattur, with 4,66,205 people in Census 2011.

How many villages and towns are in Thiruvallur district?
On today's boundaries the district contains 615 Census 2011 villages and 48 towns.

⤓ Download Tamil Nadu district data (CSV)

Sources and method

Data updated: · Report a correction