Samastipur

District in Bihar

PopulationCensus 2011, the latest complete count; Census 2027 results are expected from 2028
42.6 Lakh
State: 10.4 Crore
Area
2,574 km²
2.8% of state
Literacy RateCensus 2011: literates as a share of people aged 7 and above
61.9%
State: 61.8%
Sex RatioCensus 2011: females per 1,000 males
911
State: 918
DensityCensus 2011 population per km²
1,656 /km²
State: 1,106 /km²
Population RankBy Census 2011 population
6th of 38
In Bihar

Credit Growth (5-Year) in Samastipur: 118.6%, 23rd highest of 38 districts in Bihar

MSME Density in Samastipur: 19.7 per 1,000 people, 10th highest of 38 districts in Bihar

Women Literacy in Samastipur: 54.3%, 23rd highest of 38 districts in Bihar

Health Insurance in Samastipur: 20.5%, 23rd highest of 38 districts in Bihar

60%85%110%140%200%+No data
RBI Bank Credit (BSR-1) · 2026
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5204080150+No data
Udyam Registration (MSME) · 2026
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40%55%65%80%90%+No data
National Family Health Survey (NFHS-5) · 2019–21
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5%20%40%60%85%+No data
National Family Health Survey (NFHS-6) · 2023–24
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Samastipur is a district in Bihar with a population of 42.6 Lakh (Census 2011) spread across 2,574 sq km. Its literacy rate of 61.9% is above the state average of 61.8% and below the national average of 72.9%. The district has a sex ratio of 911 females per 1,000 males, below the state average of 918.


Demographics

IndicatorDistrictState AvgNational
Population Density1,656 /km²▲1,106 /km²366 /km²
Sex Ratio911▼918943
Literacy Rate61.9%▲61.8%72.9%
SC Population18.8%▲15.9%16.6%
ST Population0.0%▼1.3%8.7%
Worker Participation31.5%▼33.4%39.8%

What changed in Samastipur, 2019–21 to 2023–24

NFHS-5 → NFHS-6, changes of 5 points or more.

Health & Development

NFHS-6 (2023–24, provisional) · “was”: the 2019–21 value, where it moved 5 points or more

State Avg and National are population-weighted averages, not official NFHS figures. “Was” is NFHS-5 as reprinted on the NFHS-6 sheet, which can differ from the NFHS-5 layer. Small districts can swing on sampling noise.

Women & Gender

IndicatorDistrictState AvgNational
Child Marriage11th highest of 3839.5%was 49.8%▲34.3%19.2%
Female Work Gap7th highest of 3831.5 pts▲27.4 pts27.9 pts

Economy & Infrastructure

IndicatorDistrictState AvgNational
MSME Density10th highest of 3819.7 per 1k pop▲19.5 per 1k pop39.8 per 1k pop
Women Internet Use18th highest of 3858.5%was 13.9%▲58.3%64.4%

Governance

IndicatorDistrictState AvgNational
Pending Cases25th highest of 372829 per lakh▼3451 per lakh4025 per lakh

Safety & Crime

IndicatorDistrictState AvgNational
Child Abuse (POCSO)8th lowest of 381.1 per lakh▼2.0 per lakh5.3 per lakh
Cyber Crime (IT Act cases)0.0 per lakh▼0.1 per lakh2.7 per lakh

Climate Vulnerability

IndicatorDistrictState AvgNational
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Frequently Asked Questions

What is the population of Samastipur district?

Samastipur has a population of 42.6 Lakh according to the Census 2011, with a density of 1,656 people per sq km across 2,574 sq km.

What is the population of Samastipur in 2026?

There is no official count or district estimate after 2011. The latest figure is the Census 2011 count of 42.6 Lakh. Census 2027 enumeration takes place in February 2027, with results expected from 2028.

What is the literacy rate of Samastipur?

Samastipur has a literacy rate of 61.9% (Census 2011), which is above the Bihar average of 61.8% and below the national average of 72.9%.

How does Samastipur compare to Bihar?

Samastipur is the 6th most populous of 38 districts in Bihar. Its sex ratio of 911 females per 1,000 males is below the state average of 918 (Census 2011).

How many children in Samastipur are stunted or underweight?

In Samastipur, 32.0% of children under 5 are stunted, 20.9% wasted and 38.3% underweight (NFHS-6, 2023–24, provisional). Stunting compares with a Bihar average of 35.6% and an India average of 28.0%.

How many households in Samastipur have health insurance?

20.5% of households in Samastipur have at least one member covered by a health insurance or financing scheme (NFHS-6, 2023–24, provisional), down from 23.3% in 2019–21. The Bihar average is 21.1% and India's 58.1%.

What changed in Samastipur between NFHS-5 and NFHS-6?

Between NFHS-5 (2019–21) and NFHS-6 (2023–24), Samastipur improved most in women internet use (14% to 59%), menstrual hygiene (59% to 76%), pre-school attendance (35% to 51%), and got worse in modern contraception (54% to 47%), male alcohol use (11% to 16%). Changes under 5 percentage points are not counted.

What data sources are used for Samastipur?

Data comes from Census 2011, NFHS-5 (2019–21), NFHS-6 (2023–24), NJDG (2024), Udyam/MSME (2026), NCRB SLL (2022), CVI (2021), Ag Census 2015–16, RBI BSR (2026), and other official sources.

Data Sources

Each indicator keeps its own source and vintage. How they are crosswalked onto one district geography is on the methodology page, with the per-source limits on the caveats page.