Social Statistics is the use of statistical measurement systems to study human behaviour in a social environment. This can be accomplished through polling a group of people, evaluating a subset of data obtained about a group of people, or by observation and statistical analysis of a set of data that relates to people and their behaviour.
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| Key Social Indicators | Total | Males | Females | Latest Available |
| Population Characteristics | ||||
| Total Population | 100,179 | 48,749 | 51,430 | Census 2021 |
| Urban | 21,185 | 10,229 | 10,956 | Census 2021 |
| Rural | 78,994 | 38,520 | 40,474 | Census 2021 |
| Population density (number of people per square km) | 154 | Census 2021 | ||
| Urban | 1,857 | Census 2021 | ||
| Rural | 124 | Census 2021 | ||
| Median Age | 22 | 19 | 22 | Census 2021 |
| Number of Households | 18,847 | Census 2021 | ||
| Number of Institutions | 248 | Census 2021 | ||
| Average Household Size | 5.3 | Census 2021 | ||
| Education | ||||
| School Enrolment Rates of 5-14 years old (%) | 96.2% | 95.90% | 96.50% | Census 2021 |
| Proportion of population aged 5+ who are able to read and write a simple sentence in Tongan (%) | 96% | 95% | 96% | Census 2021 |
| Proportion of population aged 5+ who are able to read and write a simple sentence in English (%) | 89% | 88% | 90% | Census 2021 |
| Disability (5 years +) | ||||
| Proportion of the population aged 5+ with disability (%) | 6.4% | 5.7% | 7.0% | Census 2021 |
| Disability Seeing | 18.2% | 16.3% | 19.6% | Census 2021 |
| Disability Hearing | 12.3% | 12.9% | 11.8% | Census 2021 |
| Disability Mobility | 35.4% | 33.2% | 37.1% | Census 2021 |
| Disability Memory | 10.4% | 11.1% | 9.9% | Census 2021 |
| Disability Selfcare | 15.6% | 16.2% | 15.1% | Census 2021 |
| Disability Communication | 8.1% | 10.3% | 6.4% | Census 2021 |
| Vital Statistics | ||||
| Average number of births | 2,023 | 1,061 | 962 | Vital Statistics Report 2018-2020 |
| Sex Ratio at Birth | 110 | Vital Statistics Report 2018-2020 | ||
| Total fertility rate | 3.1 | Vital Statistics Report 2018-2020 | ||
| Crude Birth Rate (CBR) | 19.7 | Vital Statistics Report 2018-2020 | ||
| Adolescent Birth Rate | 29.1 | Vital Statistics Report 2018-2020 | ||
| Average number of deaths | 586 | 333 | 253 | Vital Statistics Report 2018-2020 |
| Crude Death Rate (CDR) | 5.7 | Vital Statistics Report 2018-2020 | ||
| Neonatal Moratality Rate (28 days) | 6 | Vital Statistics Report 2013-2018 | ||
| Infant Mortality Rate per 1,000 live births (under 1) | 2.6 | Vital Statistics Report 2018-2020 | ||
| Under-5 Mortality Rate per 1,000 live births | 5 | Vital Statistics Report 2018-2020 | ||
| Estimated life expectancy at birth | 70 | 68 | 72 | Vital Statistics Report 2018-2020 |
| Maternal mortality rate per 100,000 | 41.5 | Vital Statistics Report 2013-2018 | ||
| Migration | ||||
| Total Annual Arrivals | 119,916 | Annual Migration Report 2023 | ||
| Total Annual Departures | 126,866 | Annual Migration Report 2023 | ||
| Net Migration rate | 6,950 | Annual Migration Report 2023 | ||
| Labour Market | ||||
| Working-age Population, age 15+ | 63,189 | 29,527 | 33,662 | Labour Force Survey 2018 |
| Labour Force | 29,504 | 16,589 | 12,914 | Labour Force Survey 2018 |
| Labour Force Participation Rate | 46.7% | 56.2% | 38.4% | Labour Force Survey 2018 |
| Employment | 28,598 | 16153 | 12445 | Labour Force Survey 2018 |
| Unemployment | 906 | 436 | 469 | Labour Force Survey 2018 |
| Unemployment Rate | 3.1% | 2.6% | 3.6% | Labour Force Survey 2018 |
| Poverty – Multi-dimensional Poverty | ||||
| Proportion of the population who are poor (%) | 24% | Assessing Poverty Report 2021 | ||
| Poor Adults | 21% | Assessing Poverty Report 2021 | ||
| Poor Children | 28% | Assessing Poverty Report 2021 |