Population & Demographics of UP

Census 2011 — The Foundation

Almost all demographic questions in UPSSSC and other state-level exams are based on Census 2011 data. Since the 2021 Census was postponed, the 2011 figures remain the official reference. You must know UP’s numbers and how they compare with national averages.

Exam Tip: UP’s population is approximately 1/6th of India (16.51%). The density of 829/sq km is more than double the national average. Both are favourite exam questions.

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Population Distribution — Urban vs Rural

Uttar Pradesh remains a predominantly rural state. The urbanization level is significantly below the national average.

The major urban centres include Lucknow, Kanpur, Ghaziabad, Agra, Varanasi, Meerut, Prayagraj, and Noida. The Ghaziabad-Noida belt is the most rapidly urbanizing zone due to proximity to Delhi.

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Sex Ratio Analysis

The sex ratio (females per 1000 males) is a critical social indicator and a staple of exam questions.

District Extremes — Sex Ratio

Exam Tip: Jaunpur is often cited as having the best sex ratio in UP. Industrialized/NCR districts like Gautam Buddha Nagar tend to have the lowest due to migrant male populations.

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Literacy — The Gender Gap

UP’s literacy rate of 67.72% is below the national average of 73%. The gender gap in literacy is particularly striking — a difference of about 20 percentage points between male (77.28%) and female (57.18%) literacy.

District Extremes — Literacy

The Terai belt districts (Shravasti, Bahraich, Balrampur) consistently show the lowest literacy rates, reflecting challenges of remoteness, poverty, and limited infrastructure.

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Scheduled Castes & Scheduled Tribes

UP has a very significant SC population but a negligible ST population.

Key SC/ST Facts

• UP has the highest absolute number of SC population in India — approximately 4.13 crore
• In percentage terms, Punjab has a higher SC proportion, but UP leads in absolute numbers
• The ST population is concentrated mainly in Sonbhadra district (Kol, Gond, Baiga, and Chero tribes)
• The Tharu tribe in the Terai region (Lakhimpur Kheri, Bahraich, Shravasti) is the most well-known tribal group of UP

Exam Tip: “Highest SC population in India” = UP (absolute numbers). Don’t confuse with percentage — Punjab leads by percentage.

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District-Level Population Records

Interesting Patterns

• Ghaziabad has the highest density because of its small area and massive urban population as part of NCR
• Sonbhadra has the lowest density — it is the second-largest district by area but largely forested and tribal
• Gautam Buddha Nagar (Noida) saw explosive 44% growth due to real estate and IT industry migration
• Kanpur Nagar had the slowest growth, reflecting industrial decline and outward migration

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Comparison with National Averages

UP is above the national average only in population density and decadal growth — both of which indicate demographic pressure. It falls below on all development indicators like literacy, sex ratio, and urbanization.

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Key Takeaways

• UP population: 19.98 crore (16.51% of India) — 1st rank
• Density: 829/sq km (more than double national average)
• Sex ratio: 912 (below national 943); Child sex ratio: 902
• Literacy: 67.72%; Gender gap of ~20 percentage points
• SC population: 20.69% — highest absolute count in India (~4.13 crore)
• ST population: only 0.57%, mainly in Sonbhadra
• Most populous district: Prayagraj; Least: Mahoba
• Highest density: Ghaziabad; Lowest: Sonbhadra
• UP is predominantly rural (~77.7% rural population)
• Decadal growth: 20.23% (above national average)

Summary Cheat Sheet