Millennials were the largest generation group in the United States in 2024, with an estimated population of ***** million. Born between 1981 and 1996, Millennials recently surpassed Baby Boomers as the biggest group, and they will continue to be a major part of the population for many years. The rise of Generation Alpha Generation Alpha is the most recent to have been named, and many group members will not be able to remember a time before smartphones and social media. As of 2024, the oldest Generation Alpha members were still only aging into adolescents. However, the group already makes up around ***** percent of the U.S. population, and they are said to be the most racially and ethnically diverse of all the generation groups. Boomers vs. Millennials The number of Baby Boomers, whose generation was defined by the boom in births following the Second World War, has fallen by around ***** million since 2010. However, they remain the second-largest generation group, and aging Boomers are contributing to steady increases in the median age of the population. Meanwhile, the Millennial generation continues to grow, and one reason for this is the increasing number of young immigrants arriving in the United States.

In 2024, Millennials were the largest generation group in the United States, making up about 21.81 percent of the population. However, Generation Z was not far behind, with Gen Z accounting for around 20.81 percent of the population in that year.

In 2023, there were approximately 14.69 million millennials in the United Kingdom, making it the largest generational cohort at that time. Millennials surpassed the Baby Boomer generation as the largest generation for the first time in 2019. The two youngest generations, Gen Z and Gen Alpha, numbered approximately 13.2 million, and 8.3 million respectively. Gen X are, as of the most recent year, the second-largest generation in the UK at 14.04 million people, with their parent's generation, the Silent Generation, numbering around 4.3 million people in the same year. There were estimated to be 85,920 people who belonged to the Greatest Generation, the parents of the Baby Boomer generation, who lived through major events such as the Great Depression and World War Two. Post-War Baby Boom The baby boomer generation was the largest generation for much of this period due to the spike in births that happened after the Second World War. In 1947 for example, there were over one million live births in the United Kingdom, compared with just 657,038 live births just thirty years later in 1977. Members of this generation are typically the parents of millennials, and were the driving force behind the countercultural movement of the 1960s, due to their large numbers relative to older generations at the time. The next generational cohort after Boomers are Generation X, born between 1965 and 1980. This generation had fewer members than the Boomer generation for most of its existence, and only became larger than it in 2021. Millennials and Gen Z As of 2022, the most common single year of age in the United Kingdom in 2020 was 34, with approximately 944,491 people this age. Furthermore, people aged between 30 and 34 were the most numerous age group in this year, at approximately 4.67 million people. As of 2022, people in this age group were Millennials, the large generation who came of age in the late 1990s and early 2000s. Many members of this generation entered the workforce following the 2008 financial crash, and suffered through high levels of unemployment during the early 2010s. The generation that followed Millennials, Generation Z, have also experienced tough socio-economic conditions recently, with key formative years dominated by the COVID-19 pandemic, climate change, and an increasingly unstable geopolitical situation.

The statistic shows the number of people in the U.S. in 2011 and 2030, by generation. By 2030, the Millennial generation will have 78 million people whereas the Boomer generation will only have 56 million people in the United States.

In 2023, there were about 72.7 million Millennials estimated to be living in the United States, making them the largest generation group in the country. In comparison, there were 69.31 million Gen Z and 65.35 million Gen X estimated to be in the United States in that year.

There were approximately 14.69 million millennials in the United Kingdom in 2023. This generation, sometimes called Generation Y were born between 1981 and 1996 and are mainly the children of the post-war Baby Boomer generation. As of 2023, Millennials were the largest generational cohort in the UK, followed by Generation X at 14.04 million people, Baby Boomers at 13.57 million, and then by Generation Z at 13.2 million. The most numerous single-year of age for Millennials, and the UK as a whole, was 35 at 956,116. Boomerang generation The first cohort of millennials came of age at the turn of the century and have almost certainly been heavily influenced by the growth of internet accessibility during this time. The economic challenges faced by this generation may have a relation to the increasing share of young adults who live with their parents in the UK. This has led to the perhaps unfair, characterization of millennials as the boomerang generation, who failed to grow-up and mature. Some of these negative stereotypes regarding Millennials have since shifted to the next youngest generation, Generation Z, who have started to enter the workplace since the mid-2010s. Generation Remain One of the main challenges that British millennials currently face are their prospects after Brexit. Although the United Kingdom voted to leave the European Union in June 2016, there were clear divisions between regions, classes and age-groups. Most millennials voted to remain in the Brexit referendum with 73 percent of people aged 18 to 24, and 62 percent of those aged 25 to 34 voting to remain. In the next UK election, the majority of 25 to 49-year-olds intend to vote for the Labour Party, with only a slight majority of those over 65 planning to vote for the Conservative Party. Millennials also still appear to oppose Brexit, with approximately 65 percent of 25 to 49-year-olds believing Brexit to have been the wrong decision.

As of 2021, Millennials and Baby Boomers made up an equal share of the Australian population at around 21.5 percent each, making them the largest generational groups at the time. Those aged 75 years and over made up the smallest portion of the population, followed by Gen Alpha, or those aged 0 to 9 years at the time.

In the first quarter of 2024, 51.8 percent of the total wealth in the United States was owned by members of the baby boomer generation. In comparison, millennials own around 9.4 percent of total wealth in the U.S. In terms of population distribution, there is almost an equal share of millennials and baby boomers in the United States.

During a survey conducted in 2024, it was revealed that millennials represented the biggest share of pet owners in the United States (32 percent), followed in second place by Generation X (24 percent). Baby Boomer's came in third, representing some 24 percent of pet owners. Pet ownership in the United States Despite some fluctuations, household penetration rates for pet ownership in the United States have generally increased over the years, going from 56 percent in 1988 to approximately 66 percent in 2023. With millennials constituting the largest group of pet owners in the United States, they also constituted the generational group that planned to spend the most on their pets during the holidays in 2020, with an average spending of 51 U.S. dollars, compared to only 28 U.S. dollars of average planned spending on pets for Baby Boomers. Pet expenditure in the U.S. Pet food and treats constituted the highest selling category for pet products in the United States, with total food and treats sales reaching 58.1 billion U.S. dollars in 2022. Vet care and product sales were the second biggest pet market category that year, generating around 35.9 billion U.S. dollars in sales. Generally, average annual pet expenditure was higher for dog owners than for cat owners across all pet market categories in 2020.

In 2023, half of Generation Z in the United States were white. In comparison, 48 percent of Gen Alpha were white in that year, making it the first generation that does not have a majority white population in the United States.

In 2022, among the working age population of the United Kingdom, there were approximately 3.71 million people employed from the Baby Boomer Generation, followed by 11.4 million Gen X employed, 12.2 million Millennials, and 4.3 million Gen Z.

56.8% of the world’s total population is active on social media.

As of September 2023, YouTube as the most popular social media platform for global users, with 97 percent of respondents reporting to use the popular video platform. YouTube was also the most popular social media among Gen Z users, with 96 percent of respondents in this age group reporting to have used the video platform as of the examined period. Facebook's usage kept steady among among the general digital population, with around eight in 10 reporting to have used the platform. In comparison, the social media's popularity was in free fall among gen Z users with only four in 10 among those surveyed reporting to engage with the Meta-powered platform.

As of September 2024 in the United Kingdom, 98 percent of Generation Z, those born between 1995 and 2012, were using social media. The same was true for 97 percent of millennials in the country. Overall, 92 percent of Gen X were on social networks, as were 86 percent of Baby boomers.

By 2028, it is estimated that Gen Z and millennial voters will comprise the majority of eligible voters in the United States. In the upcoming 2024 presidential election, Gen Z and millennial voters will make up around 48.5 percent of eligible voters in the country.

In 2023, the disposable income of a household led by a Millennial in the United States was 97,866 U.S. dollars per year. Households led by someone born in Generation X, however, had a disposable income of around 113,886 U.S. dollars in 2023.

Data from a survey held in August 2022 in the United States revealed that the most popular news source among millennials was social media, with 45 percent of respondents reporting daily news consumption on social networks. This was more than double the share who got their news via radio. When it comes to trust, though, social media does not fare well.

Social media and news consumption

As adults of all ages spend more and more time on social media, news consumption via this avenue is likely to increase, but something which could affect this trend is the lack of trust in the news consumers encounter on social platforms. Although now the preferred option for younger audiences, social networks are among the least trusted news sources in the United States, and concerns about fake news remain prevalent.

Young audiences and fake news

Inaccurate news is a major problem which worsened during the 2016 and 2020 presidential election campaigns and the COVID-19 pandemic. A global study found that most Gen Z and Millennial news consumers ignored fake coronavirus news on social media, but almost 20 percent interacted with such posts in the comments section, and over seven percent shared the content. Younger news consumers in the United States were also the most likely to report feeling overwhelmed by COVID-19 news. As younger audiences were the most likely to get their updates on the outbreak via social media, this also made them the most susceptible to fake news, and younger generations are also the most prone to ‘doomscrolling’, an addictive act where the reader pursues and digests multiple negative or upsetting news articles in one sitting.

A 2022 survey found that younger consumers were most likely to use social media as a news source, with 50 percent of Gen Z and 44 percent of millennials reporting daily usage. By contrast, 43 percent of Boomers said that they never used social networks for news.

According to a global survey conducted in 2023, roughly two-thirds of Millennials followed and purchased goods from the social media accounts of brands. Overall, about half of Gen Z users followed and purchased from influencers, whilst just 11 percent of Baby boomers did. Additionally, six out of ten respondents belonging to the Gen X age group followed and purchased from the social media accounts of retailers. A booming market In recent years, social commerce has exploded in popularity among online shoppers. Consumers can now purchase items directly on social media platforms, going from discovery to purchase in a matter of minutes. Social commerce is estimated to reach over one trillion U.S. dollars in revenue by 2028, up from 699 billion in 2024. This new form of e-commerce is the most popular in Thailand, where around 91 percent of online consumers use social sites as a purchase channel. In comparison, this share stood at 57 percent in the United States. Chinese platforms dominate the social space Chinese social shopping sites are the most successful ones worldwide. For example, Douyin, a short-form video sharing app, ranked as the highest revenue-generating platform in 2024, raking in approximately 199 billion U.S. dollars. WeChat, a messaging app, came in second with a revenue of 152 billion dollars, followed by Little Red Book, a picture sharing app, with a revenue of 94 billion dollars. TikTok, which is owned by the Chinese company ByteDance, came in sixth place, pulling in 20 billion dollars in revenue. While TikTok's popularity extends globally, its on-app purchase store, TikTok Shop, primarily caters to the Asian market. Thus, it is clear that China is the global leader in social selling.

As of 2023, Baby Boomers made up 65 percent of the United States Senate, and 44.8 percent of the United States House of Representatives. Millennial members made up considerably less of the 118th U.S. Congress, representing 11.8 percent of the House of Representatives and three percent of the Senate.