What was India's approximate population according to Census 2011?

1.21 billion. Census 2011 recorded India's population at approximately 1.21 billion, making it the world's second most populous country at the time. Read more: Census 2011: India's Population Data and the Population Pyramid.

Census 2011: India’s Population Data and the Population Pyramid

Census 2011 remains India’s most recent full population count. Its numbers still shape planning, and its “pyramid” shows the country’s changing age structure.

📑 Contents

1Population, Literacy, the Pyramid, Sex Ratio, and Urban Growth
2What the Pyramid Means, Census Scope, and the Delayed Next Count
3Age Composition, Dependency Ratio and the National Population Policy
4Test Yourself
5The Demographic Dividend Argument, NSSO Gaps, and Reading Critically
6Census 2027: The Next Full Count Is Already Underway

✊ Must Know

1. Population, Literacy, the Pyramid, Sex Ratio, and Urban Growth

Data Census 2011 recorded India’s population at approximately 1.21 billion, making it the world’s second most populous country at the time.
Data The Census showed a literacy rate of about 74%, with a persistent gap between male and female literacy rates. Male literacy stood at 80.9%, against 64.6% for females.
Broad-Base Pyramid India’s population pyramid in 2011 showed a broad base, reflecting a young population with a large share under 25 years old.
Data The overall sex ratio stood at 943 females per 1,000 males, an improvement over the previous 2001 Census figure. Urban population grew significantly between 2001 and 2011, though a majority of Indians still lived in rural areas.

📘 Good to Know

2. What the Pyramid Means, Census Scope, and the Delayed Next Count

Why A broad-based population pyramid, like India’s, indicates high past fertility and a large working-age population entering the labour force.
Beyond Headcounts The Census also collects detailed data on religion, language, disability, and migration, beyond basic population counts.
Instead The next full Census was delayed well past its usual ten-year cycle, making 2011 figures the base for planning far longer than intended.

Age Composition, Dependency Ratio and the National Population Policy

Age Composition Census 2011 grouped India’s population into children (below 15, about 34.4%), working age (15-59, about 58.7%), and the aged (above 59, about 6.9%).
Dependency Ratio The dependency ratio compares children and the aged, who aren’t producers, against the working-age population that supports them.
National Population Policy 2000 The NPP 2000 built on the Family Welfare Programme launched in 1952. It targets free schooling to age 14, an infant mortality rate below 30 per 1,000 live births, and universal child immunisation.
Adolescent Focus Adolescents (aged 10-19) make up about a fifth of India’s population. The NPP 2000 specifically targets their nutrition needs and protection from early marriage.

Test Yourself

📝 Test Yourself

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💎 Great to Know

3. The Demographic Dividend Argument, NSSO Gaps, and Reading Critically

Link A young, broad-based population pyramid is often cited as the basis for India’s “demographic dividend” argument. Realizing that dividend, though, requires matching job creation.
Filling the Gaps Census data’s decade-long gaps mean policymakers often rely on interim surveys, like the NSSO, to estimate more recent demographic trends.
Instead Reading Census 2011 data critically means recognizing it reflects conditions from over a decade ago, not India’s current demographic reality.

📰 Current Affairs

Census 2027: The Next Full Count Is Already Underway

The Schedule Houselisting for Census 2027 runs from April to September 2026. The population enumeration phase itself is set for 27 February to 1 March 2027. (Source: Business Standard)
A First Since 1931 Census 2027 will collect caste data beyond just SC/ST categories, for the first time since 1931. It will also be India’s first fully digital census. (Source: PWOnlyIAS)
Linked to Delimitation This census is expected to feed the next Delimitation Commission exercise, the first since 2011. That exercise will redraw constituency boundaries using updated population data.

📝 Exam Point of View

Exam Point of View

NDA-NA-2 2016, Q93Punjab genuinely has the highest SC percentage (~32%), and UP has the highest total SC population. But Bihar is NOT second by total SC population; West Bengal is. The lowest SC percentage is Mizoram (0.03%), not Goa. View this question on the full NDA-NA (II) 2016 paper →.
NDA-NA-2 2016, Q60By 2011 Census population, among Maharashtra, Bihar, West Bengal, and undivided Andhra Pradesh, the decreasing order is Maharashtra (~112 million), then Bihar. West Bengal and Andhra Pradesh follow. View this question on the full NDA-NA (II) 2016 paper →.
NDA-NA-2 2016, Q129As per Census 2011, Uttar Pradesh has the highest number of inhabited villages of any Indian state. It has well over a lakh. Test yourself on this question.
NDA-NA-I&II 2020, Q80Among Maharashtra, Madhya Pradesh, Odisha and Punjab, Census 2011 shows Punjab as the least populated, at about 27.7 million. Test yourself on this question.