Monaco has the world's oldest population, with more than 36% of residents aged 65 or older, according to World Bank data.

With recent advances in medicine, sanitation, and nutrition, expected lifespans have rapidly risen around the globe—resulting in a rapidly aging global population. The worldwide distribution has seen a nearly 600% jump in the population of people aged 65 and older.

In 1950, people in Norway lived to age 72, on average, while those in Mali lived to just 26. By 2015, the countries with the worst conditions had made such significant progress that the global average life expectancy had surpassed the rate of any nation in 1950.

Studies show the number one indicator of whether someone is a "super-ager" is not diet or genetics, but the extent of their social relationships. Moreover, scans reveal noticeable physical differences in certain parts of the brain in patients with extensive social networks.

While many of these Americans are often working part-time, the share varies significantly by US state. While roughly 29% of those over the age of 65 work in Vermont, only about 17% do the same in West Virginia.

In the US, the average retirement age was 64 as of 2020. The Organization for Economic Co-operation and Development projects a two-year increase in the average retirement age by the mid-2060s.

An estimated 4.3 million people aged 55 or older who have cognitive impairment or dementia live alone in the US. The individuals facing these challenges are more likely to be women, people of color, and to generally be poorer and less educated than other older adults who are also living alone.

Iceland, Luxembourg, and Norway offer some of the highest annual pension payouts at over 30,000 euros. The below chart shows how European nations stack up in terms of which offer the highest annual pension payouts.

A Gallup poll from 2022 found that the percentage of adults between the ages of 55 and 74 who are retired is declining.

Factors thought to contribute to longevity in these regions include diet and social connections, but their legitimacy is often questioned due to a lack of rigorous scientific methodology and potential record inaccuracies.

This list highlights eight demographic trends expected to shape the world in the coming decades. The world’s population is projected to hit 9 billion in 2037. In that time, India will overtake China in population, and the Democratic Republic of...

This UN summary outlines four global trends in shifting demographics. The world’s population is expected to peak by the end of the century as fertility rates continue to decline. Between now and 2050, the global population is projected to become...

This website by the World Bank provides visualizations for demographic data from around the world. Specific demographic data, such as total population, can be viewed through maps, charts, and graphs. Results can be filtered by sex, country, or year....

This 2023 data from the Institute for Health Metrics and Evaluation shows the estimated number of people with complete hearing loss in different age groups per 100,000 people in the population. Individuals aged 70 or older make up the largest group with this type of hearing deficit.

An estimated 25 million women pass through menopause annually, with a projected increase in the number of women in menopause in both lower-resource and higher-income populations in the years ahead, highlighting the social and economic value of focusing on menopause care.

Swiss residents overall have a mean net worth of almost $700K, making them some of the richest in the world, ahead of both the US and Hong Kong. In Switzerland, there is no capital gains tax on financial assets, although the country does have a relatively low wealth tax.

Macy's ranked at number five for the oldest generation alive today, whereas Gen Xers have Apple in their number one slot. This data visualization outlines the most-loved brands among baby boomers.

At age 50, you can make catch-up contributions to retirement accounts. At age 65, you become eligible for Medicare.

This page presents data, charts, and analysis on changes in population growth around the world. Over the last few centuries, the human population has gone through an extraordinary change. In 1800, there were 1 billion people; today, there are more...

Mounting evidence suggests that socialization is a vital component of maintaining good health. Research published in 2024 from Mayo Clinic researchers analyzed the social lives of more than 280,000 adults and concluded that individuals that weren't likely to participate in extracurricular social activities and get-togethers were more likely to have a biological age older than their actual age—meaning that you may be 60 but health indicators would suggest you're older.

Classifying countries by governance type involves leaning into technical systems like the Regimes of the World classification. In this data dive, see a map of the world's oldest and youngest electoral democracies, as well as liberal democracies (which are measured by the protection of minorities and checks on executive power from the legislature).

As of 2025, the four most populous nations—China, India, the US, and Indonesia—are also the ones with the most internet users, collectively accounting for almost half of the 6.04 billion internet users worldwide. This suggests that population size, rather than adoption rate, is a better predictor of online activity.

The 2022 revision of World Population Prospects contains the official population estimates and projections from the United Nations. It presents population estimates from 1950 to present for 237 countries or areas around the world. The data consider...

Though every worker wants to retire, only some have retirement accounts. Data from the Census Bureau shows those who currently own such accounts are disproportionately white and Asian men in the Baby Boomer generation, suggesting access to these crucial retirement plans is not equal. Dive into the numbers and get a sense of who has retirement accounts here.

The World Health Organization estimated in 2019 that by 2020 there would be roughly 195.6 million cases of age-related macular degeneration and projected that the number would continue to grow.

Roughly 1 million Americans retire each year, and a quarter of them relocate. This list showcases twenty of the best small towns—with populations no larger than 100,000—for retirees in the US, evaluating each locale by its affordability, safety,...

With global average life expectancy cresting at 73 years, understanding how the body ages is imperative to effective medical treatment and maintaining a desired quality of life. This 13-minute video dives into how the body and its organs age "from head to toe."

This IMF podcast explores the population booms and busts throughout human history. According to Harvard economist and demographer David Bloom, it took more than 50,000 years for the world population to reach 1 billion. But since 1960, we have added...

The 1789 US Constitution remains the oldest active written national constitution. Older systems exist—such as San Marino’s statutes or the Magna Carta—but they are not single, codified constitutions. See how other countries compare in this visualization.

This tool lets you model the populations of individual countries by adjusting key demographic inputs. See how changes in birth rates, mortality, and migration affect the size and structure of future populations.

That figure, calculated by researchers at the University of Southern California, includes medical and long-term care costs, unpaid family and friend caretaking, lost productivity for patients and their families, and the economic loss in quality of life for patients and their families. In 2025, they estimate there were 5.6 million people living with dementia.

However, others also invest in an annuity contract when they come into a large sum of money, like an inheritance. There are lots of myths surrounding annuities, such as the idea that they're only for the wealthy.

Some states had higher shares of no-income households than others: West Virginia, for instance, had a national high of 34% of households with no income. These states tend to have older populations, higher rates of disability, and lower median incomes overall. In such contexts, a larger portion of households rely on non-earned income sources or report no income during the survey period.

Although no demographic data exist for more than 99% of the time humans have existed, this value can be estimated by tracking approximate population sizes over different periods and the birth rates within those periods. In 2022, about 6.8% of humans that have ever been born were alive.

This extensive report provides quantitative evidence on social well-being trends for 36 countries. Data cover demography and family characteristics, employment and wealth, mobility and housing, health status, social expenditure, subjective...

Did you know that drivers over the age of 74 tend to pay higher car insurance rates than most other age groups? That small fortune in auto insurance payments is just one reason some people give up a car when they retire. If you're curious about the pros of getting rid of your car when you retire, read this article.

Each year, Davos draws one of the most exclusive guest lists in the world. In 2025, attendees included 60 heads of state, over 900 CEOs and corporate chairs, and top leaders from global civil society, who gathered in the Swiss Alps.