Guinea-Bissau Population Pyramid (2026)
Guinea-Bissau has a population of 2,297,808 in 2026, according to the UN World Population Prospects 2024 (projection for 1 July). That is the 145th-largest population in the world and 0.03% of the global total of 8.30 billion. Children under 15 make up 37.8% of the population and people aged 65 and over 3.3%, with 97.9 males for every 100 females.
Guinea-Bissau Demographics
Guinea-Bissau has 2.3 million people in 2026, up 293.2% from 584,403 in 1970.
Births outnumber deaths by 50,074 (UN projection for 2026).
65+ share 3.3% — the 31st-lowest of 194 countries.
Under-15 share 37.8% — the 31st-highest of 194 countries.
Largest generation: Gen Z — 31.4% (722,504)
All generations in Guinea-Bissau →Population pyramid, 1950 to 2026
Watch how Guinea-Bissau's population structure evolved from 1950 to 2026
Page Navigation(Quick jump to sections)
Sex Ratio & Gender Distribution
Guinea-Bissau has 97.9 males per 100 females (sex ratio)
Women outnumber men by 24,540 (1.1% of the population).
Male Statistics
- Population:1,136,634
- Percentage:49.5%
Female Statistics
- Population:1,161,174
- Percentage:50.5%
- Ratio Format:1:1.022
Sex Ratio Analysis
The sex ratio of Guinea-Bissau indicates more females than males.
Birth Statistics & Natality Data
Estimated births today
Simulated from the UN WPP 2024 projection of 66,031 births in 2026.
Current Birth Metrics (2026)
Temporal Distribution
Averages from the UN annual births, 2026 projection
Historical Birth Rate Trends, 1950 to 2026
Birth Statistics, 2021 to 2026
| Year | Births | Birth Rate (per 1,000) | TFR (children/woman) | Type |
|---|---|---|---|---|
| 2021 | 63,759 | 31.0 | 4.00 | estimate |
| 2022 | 64,131 | 30.5 | 3.91 | estimate |
| 2023 | 64,679 | 30.0 | 3.84 | estimate |
| 2024 | 65,072 | 29.6 | 3.76 | projection |
| 2025 | 65,468 | 29.1 | 3.68 | projection |
| 2026 | 66,031 | 28.7 | 3.62 | projection |
Historical Analysis
Global Context (2026)
Source: UN WPP 2024: births, birth rate and fertility for 2024 and later are medium-variant projections; 1950–2023 are estimates. The live counter is a uniform simulation of the 2026 projection (66,031 births), not a real-time feed.
Median Age Analysis
Guinea-Bissau's median age is 19.6 years
Half the population is younger than 19.6 years, half is older — indicating a very young society
Complete Age Distribution & Youth Demographics
| Age Group | Population | % | Category |
|---|---|---|---|
| 0-4 | 305,404 | 13.3% | Youth |
| 5-9 | 286,337 | 12.5% | Youth |
| 10-14 | 277,934 | 12.1% | Youth |
| 15-19 | 251,224 | 10.9% | Young Adult |
| 20-24 | 218,196 | 9.5% | Young Adult |
| 25-29 | 189,301 | 8.2% | Working Age |
| 30-34 | 163,378 | 7.1% | Working Age |
| 35-39 | 139,989 | 6.1% | Working Age |
| 40-44 | 119,755 | 5.2% | Working Age |
| 45-49 | 96,560 | 4.2% | Working Age |
| 50-54 | 78,383 | 3.4% | Working Age |
| 55-59 | 55,567 | 2.4% | Working Age |
| 60-64 | 40,427 | 1.8% | Working Age |
| 65-69 | 31,547 | 1.4% | Senior |
| 70-74 | 22,442 | 1.0% | Senior |
| 75-79 | 12,723 | 0.6% | Senior |
| 80-84 | 5,780 | 0.3% | Senior |
| 85-89 | 2,176 | 0.1% | Senior |
| 90-94 | 583 | 0.0% | Senior |
| 95-99 | 93 | 0.0% | Senior |
| 100+ | 7 | 0.0% | Senior |
Demographic Transition Model (DTM) Stage
Stage 3 (falling birth rate): 3.62 children per woman and 28.7 births per 1,000, with a low death rate (6.9). Read more about Stage 3 of the Demographic Transition Model.
Fertility Rate & Birth Statistics
Guinea-Bissau Total Fertility Rate: 3.62 children per woman
Above the replacement level of 2.1
Fertility Rate Trends
Historical data (solid line) and future projections (dashed line)
Historical Fertility Trends
| Year | Total Fertility Rate | Birth Rate | Change |
|---|---|---|---|
| 2021 | 4.00 | 31.0 | |
| 2022 | 3.91 | 30.5 | ↓0.09 |
| 2023 | 3.84 | 30.0 | ↓0.07 |
| 2024 | 3.76 | 29.6 | ↓0.08 |
| 2025 | 3.68 | 29.1 | ↓0.08 |
| 2026 | 3.62 | 28.7 | ↓0.06 |
Global Context
- • World Average: 2.23 children per woman
- • Comparison: Above global average
- • UN projection for 2030: 3.37
Guinea-Bissau's total fertility rate is 3.62 children per woman in 2026 (above replacement), above the replacement level of 2.1. Guinea-Bissau ranks 34 of 194 for fertility rate (1 = highest), in the highest third of countries. The fertility rate has changed by −38.7% since 1950.
Historical Demographic Changes
Between 1950 and 2026, Guinea-Bissau's population has increased by 322.7%.
The median age is almost unchanged: 20.4 in 1950, 19.6 in 2026.
Understanding Guinea-Bissau's Demographics
Guinea-Bissau has an expansive population pyramid — a broad base of children that narrows steadily toward older ages.
Children under 15 make up 37.8% of the population and people aged 65 and over 3.3%.
The largest five-year age band is 0–4, at 13.3% of the population.
Demographic Analysis: Guinea-Bissau's Population Structure
Demographic Dividend Window
The working-age share is still rising, from 55.2% in 2016 to 58.9% in 2026 (dependency ratio 69.9).
Fertility Transition Stage
Guinea-Bissau is in a period of above replacement, with a total fertility rate of 3.62 children per woman (2026, UN WPP 2024).
Population Aging Speed
Guinea-Bissau's median age changed by +1.9 years from 2016 to 2026, slower than the world average (+2.6 years).
Key Demographics
| Total Population | 2,297,808 |
| Male Population | 1,136,634(49.5%) |
| Female Population | 1,161,174(50.5%) |
| Median Age | 19.6 years |
| Sex Ratio | 97.9 males per 100 females |
| Youth (0-14) | 869,675(37.8%) |
| Working Age (15-64) | 1,352,782(58.9%) |
| Elderly (65+) | 75,351(3.3%) |
| Total Dependency Ratio | 69.9 |
| Youth Dependency Ratio | 64.3 |
| Old Age Dependency Ratio | 5.6 |
| Pyramid Type | Expansive |
Dependency Ratios: Number of dependents per 100 working-age individuals.
Demographic Data Visualizations
Total population, 1950–2026 (UN WPP 2024; 2024 onward are projections).
Median age, 1950–2026 (UN WPP 2024; 2024 onward are projections).
Youth, working-age and elderly shares, 1950 vs 2026 (UN WPP 2024).
Age distribution in 2026: youth, working-age and elderly shares (UN WPP 2024; projection).
Life Expectancy in Guinea-Bissau
How long the average person in Guinea-Bissau is expected to live · sourced from UN WPP 2024
Historical Trend, 1950 → 2026 (plus UN projection to 2100)
Solid: actual · Dashed: medium-variant projectionFuture Demographic Trends
Guinea-Bissau is projected to grow to 3.4 million people by 2050 (+49.6% from 2026).
The median age rises from 19.6 in 2026 to 25.7 by 2050.
Guinea-Bissau's Demographic Evolution by Decade
The population increased by 41.9%, growing from 0.6 million in 1970 to 0.8 million by 1980
The median age decreased by 1.4 years, indicating a younger demographic profile during this period
The youth population share expanded by 3.2 percentage points
Meanwhile, the elderly population proportion grew by 0.5 percentage points.
Key Demographic Highlights
- • Population changed from 584K to 829K
- • Growth rate of 41.9% over the decade
- • Median age shifted from 18.0 to 16.6 years (−1.4y)
- • 65+ share changed by +0.5 points; under-15 share by +3.2 points
Frequently Asked Questions About Guinea-Bissau
How does Guinea-Bissau rank globally by population?
Guinea-Bissau ranks 145th in the world by population with 2.30 million people as of 2026, representing 0.03% of the global total of 8.30 billion.
What does Guinea-Bissau's age structure reveal about its development?
Guinea-Bissau's age structure — 37.8% under 15, 58.9% working-age (15–64) and 3.3% aged 65+ — is that of a country in Stage 3 of the demographic transition, with an expansive population pyramid. The median age is 19.6 years.
What is the dependency ratio in Guinea-Bissau?
Guinea-Bissau has 69.9 people under 15 or aged 65+ per 100 people aged 15–64 in 2026.
Is Guinea-Bissau experiencing a demographic dividend?
Guinea-Bissau is opening its demographic-dividend window. The working-age share is still rising, from 55.2% in 2016 to 58.9% in 2026 (dependency ratio 69.9). The demographic dividend occurs when falling fertility creates a bulge in the working-age population while dependency ratios stay manageable.
What are the gender dynamics in Guinea-Bissau's population?
Guinea-Bissau has more females than males, with 97.9 males per 100 females.
Compare with Other Countries
Data Sources & Methodology
All population data is sourced from the United Nations Department of Economic and Social Affairs, Population Division. The data represents UN medium-variant projections.
Cite this page: Population Pyramids. (2026). Guinea-Bissau Population Pyramid and Demographic Analysis. Retrieved from https://www.populationpyramids.org/guinea-bissau
View UN World Population Prospects Data →