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District of Bihar

Samastipur District Population 2026

Population · 1 March 2026

≈ 54.16 lakh Estimate Our estimate, method M1, constrained to the official state projection 1 March 2026 How this is made →

54,16,000 5.42 million 1 March 2026

Samastipur district's population is estimated at ≈54.16 lakh (54,16,000) on 1 March 2026. This is our estimate, tied to the official Bihar projection; Census 2011, the last count, recorded 42,61,566.

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

Which number do you mean?

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

District

Samastipur district

Census 2011
42,61,566
2026 Estimate Our estimate, method M1, constrained to the official state projection How this is made →
≈ 54.16 lakh

Urban population

Towns (urban)

Census 2011
1,47,797

Rural

Villages (rural)

Census 2011
41,13,769

Key figures

Population 2026
≈ 54.16 lakh 54,16,000 Estimate Our estimate, method M1, constrained to the official state projection How this is made →
Census 2011
42.62 lakh 42,61,566 Census 2011 Final count, Census of India 2011 (ORGI) How this is made →
Density
1,467per km² 2011
Sex ratio
911 Bihar: 918
Child sex ratio (0–6)
923 Bihar: 935
Literacy rate
61.9% Male 71.3% · Female 51.5%
Urban share
3.5% Bihar: 11.3%
Growth 2001–11
+25.5% Bihar: +25.4%
Area
2,904km² Census 2011
Households
8.35 lakh 5.1 people per household
Villages
1,246 Census 2011
Towns
7 Census 2011

Where it ranks

Population over time

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

Samastipur: Population over time
  • Census
  • Estimate
61 L 2026
› Show the numbers as a table
YearPopulation
195112,57,253
196114,74,177
197117,19,053
198121,16,876
199127,16,929
200133,94,793
201142,61,566
2016 *46,75,000
2021 *50,40,000
2026 *54,16,000
2031 *57,75,000
2036 *60,83,000

* Estimate

How Samastipur'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 Samastipur's 2011 population was spread
#
1 Samastipur3,46,1098.1%89571.6%23.1%
2 Bibhutpur3,38,1497.9%91963.1%0.0%
3 Kalyanpur3,10,4397.3%93559.3%1.7%
4 Ujiarpur2,97,8117.0%90564.2%0.0%
5 Sarairanjan2,54,8356.0%93163.5%0.0%
6 Hasanpur2,27,4215.3%90857.3%0.0%
7 Warisnagar2,16,1235.1%90260.9%3.5%
8 Singhia2,10,0354.9%92252.2%0.0%
9 Dalsinghsarai2,08,8184.9%91164.7%11.4%
10 Rosera2,00,6244.7%90961.6%15.5%
11 Khanpur1,95,7294.6%91857.8%0.0%
12 Shivaji Nagar1,93,8504.5%90558.5%0.0%
13 Morwa1,86,0754.4%91861.6%0.0%
14 Mohiuddinagar1,84,5214.3%89861.6%0.0%
15 Patori1,79,9564.2%89962.3%0.0%
16 Tajpur1,61,6263.8%89769.6%0.0%
17 Vidyapati Nagar1,52,9163.6%90262.2%0.0%
18 Bithan1,48,5653.5%93648.0%0.0%
19 Pusa1,32,9323.1%90871.9%0.0%
20 Mohanpur1,15,0322.7%88155.6%0.0%

Largest towns in Samastipur (Census 2011)

Largest towns in Samastipur (Census 2011)
  1. Samastipur 67,925
  2. Rosera 31,155
  3. Dalsinghsarai 23,862
  4. Mathurapur CT 7,627
  5. Bhuindhara CT 6,614
  6. Bhagirathpur CT 5,323
  7. Dharampur CT 5,291

How people in Samastipur worked (Census 2011)

Cultivators

22.3%

Agricultural labourers

53.7%

Household industry

3.6%

Other work

20.5%

Share of all workers, main and marginal. Work participation: 31.5%.

Age structure of Samastipur

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 Samastipur
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
0-42,80,6892,60,543
5-93,18,2962,94,112
10-143,08,1322,76,764
15-192,15,1621,56,148
20-241,77,6201,63,692
25-291,57,4701,58,302
30-341,45,0971,43,757
35-391,32,4401,21,943
40-441,06,47694,222
45-4986,54182,863
50-5472,35762,976
55-5956,07461,275
60-6464,42061,460
65-6946,27040,443
70-7430,68424,413
75-7912,23110,288
80+13,18512,736
Children (0–14)
40.9%
Bihar 40.2%
Working age (15–59)
51.6%
Bihar 52.3%
Older people (60+)
7.4%
Bihar 7.4%
Median age
20.2years
Bihar 20.4
Dependency ratio
83.1
children and 65+ per 100 aged 15–64
Bihar 81.0

Languages spoken in Samastipur

Share of people by mother tongue, grouped into languages as the Census does. 30 languages recorded. Census 2011 Census 2011, as published. How this is made →

Languages spoken in Samastipur
  1. Hindi 60.7%
  2. Maithili 30.8%
  3. Urdu 8.4%
  4. Arabic/Arbi 0.0%
  5. Punjabi 0.0%
  6. Bengali 0.0%
  7. Others 0.0%
  8. English 0.0%

Largest mother tongues

  1. Hindi52.3%
  2. Maithili30.7%
  3. Urdu8.4%
  4. Magadhi/Magahi0.1%
  5. Thati0.0%
  6. Bhojpuri0.0%
  7. Arabic/Arbi0.0%
  8. Punjabi0.0%

Housing and amenities in Samastipur

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

Basic services

  • Electricity for lighting 10.4%

    Bihar 16.4%

  • Tap water 2.4%

    Bihar 4.4%

  • Water source within premises 41.4%

    Bihar 50.1%

  • Toilet within premises 18.8%

    Bihar 23.1%

  • Open defecation (no latrine) (Lower is better for this one.) 80.3%

    Bihar 75.8%

  • Bathing area within premises 25.1%

    Bihar 37.5%

  • Closed drainage 3.3%

    Bihar 6.7%

  • Cooking with LPG/PNG 5.4%

    Bihar 8.1%

  • Cooking with wood, crop waste or dung (Lower is better for this one.) 92.3%

    Bihar 88.9%

What households own

  • Mobile phone 50.0%

    Bihar 53.2%

  • Television 9.9%

    Bihar 14.5%

  • Scooter or motorcycle 6.6%

    Bihar 8.1%

  • Computer or laptop 6.0%

    Bihar 7.1%

  • Car, jeep or van 1.2%

    Bihar 1.7%

  • Use banking services 44.4%

    Bihar 44.4%

  • None of the listed assets (Lower is better for this one.) 25.7%

    Bihar 25.6%

The home itself

  • Own their home 97.5%

    Bihar 96.8%

  • Rent their home 1.3%

    Bihar 2.1%

  • Permanent (pucca) house 49.0%

    Bihar 48.0%

  • House in good condition 31.9%

    Bihar 36.1%

  • Concrete roof 24.1%

    Bihar 23.8%

  • Cement or tiled floor 9.6%

    Bihar 15.2%

  • One room or less (Lower is better for this one.) 67.7%

    Bihar 47.7%

Bihar

What the numbers say

  • Samastipur district held 4.1% of Bihar's population in 2011, 6th of 38 districts.
  • The gender gap in literacy is wide: 71.3% of men but only 51.5% of women could read and write in 2011.
  • 3.5% of residents lived in towns in 2011, more rural than Bihar as a whole (11.3%).
  • Our 2026 estimate, ≈54.16 lakh, implies growth of about 27% since 2011; it is tied to the official Bihar projection.
  • Its largest town, Samastipur, had 67.9 thousand people in 2011, 1.6% of the district.

Compare with

All districts of Bihar →

Census 2027 status

Results pending

  1. Phase I: houselisting

    Done (2 May 2026 – 31 May 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 Samastipur, they will appear on this page, at this address. Census 2027 explained →

Population by religion in Samastipur (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 Samastipur (Census 2011)
ReligionPersonsShareBihar
Hindu 38,00,598 89.2% 82.7%
Muslim 4,52,370 10.6% 16.9%
Christian 2,126 0.0% 0.1%
Sikh 554 0.0% 0.0%
Buddhist 292 0.0% 0.0%
Jain 231 0.0% 0.0%
Other religions and persuasions 112 0.0% 0.0%
Religion not stated 5,283 0.1% 0.2%
Total42,61,566100%

Frequently asked questions

What is the population of Samastipur district in 2026?
Our estimate for 1 March 2026 is ≈54,16,000 (54.16 lakh). It is not an official figure: it applies Samastipur's 2001–2011 trend, damped, to the official Bihar projection (method M1). Census 2011 counted 42,61,566.

What was the population of Samastipur district in Census 2011?
42,61,566: 22,30,003 males and 20,31,563 females, of whom 1,47,797 lived in towns and 41,13,769 in villages.

What is the literacy rate and sex ratio of Samastipur?
Literacy was 61.9% in 2011 (men 71.3%, women 51.5%). The sex ratio was 911 females per 1,000 males, and 923 among children aged 0–6.

Which is the largest town in Samastipur district?
Samastipur, with 67,925 people in Census 2011.

How many villages and towns are in Samastipur district?
On today's boundaries the district contains 1,246 Census 2011 villages and 7 towns.

⤓ Download Bihar district data (CSV)

Sources and method

Data updated: · Report a correction