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Mapped: U.S. Population Change by State Through 2040

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Mapped: U.S. Population Change by State Through 2040

Key Takeaways:

  • 14 states are projected to have smaller populations in 2040 than in 2025.
  • Idaho (+24.1%) and Utah (+21.9%) are projected to see the fastest percentage growth.
  • The South accounts for roughly 78% of projected U.S. population gains through 2040.

The U.S. population is projected to add roughly 21.5 million people between 2025 and 2040, an increase of 6.3%.

This visualization maps projected state-level population change over the period using projections from the Weldon Cooper Center for Public Service at the University of Virginia, benchmarked to the 2020 Census and 2025 Census Bureau population estimates.

Where America’s Population Is Growing Fastest

The table below shows projected population changes for all 50 states and Washington, D.C., through 2040, based on the Cooper Center projections.

RankingState or DistrictPopulation ChangePercentage Change
1Idaho488,61924.1%
2Utah773,46721.9%
3Texas6,559,67020.7%
4Florida4,621,61919.7%
5South Carolina894,82816.1%
6Nevada482,69214.7%
7Arizona1,057,83213.9%
8Delaware141,13413.3%
9North Carolina1,477,22713.2%
10Colorado768,29812.8%
11North Dakota99,52112.5%
12Washington968,10112.1%
13Georgia1,284,01811.4%
14Montana124,69310.9%
15Tennessee791,95210.8%
16South Dakota100,46010.7%
17District of Columbia44,9776.5%
18Oklahoma250,5856.1%
19Nebraska119,5825.9%
20Virginia506,9055.7%
21Minnesota270,6234.6%
22Oregon196,1944.6%
23New Jersey409,8934.3%
24Alabama219,7904.2%
25Massachusetts278,6693.9%
26Indiana232,2693.3%
27Arkansas100,2773.2%
28Maryland192,4843.1%
29Maine42,2133.0%
30New Hampshire41,6322.9%
31Iowa63,0071.9%
32Kentucky84,8111.8%
33Rhode Island15,6561.4%
34Missouri45,2670.7%
35Wisconsin29,0480.5%
36Wyoming2,1980.4%
37Kansas8,7690.3%
38Connecticut-3960.0%
39California-144,900-0.4%
40Ohio-122,089-1.0%
41Alaska-8,841-1.2%
42Hawaii-20,429-1.4%
43Pennsylvania-184,685-1.4%
44New Mexico-36,278-1.7%
45Michigan-183,820-1.8%
46Vermont-12,213-1.9%
47New York-456,879-2.3%
48Louisiana-153,837-3.3%
49Mississippi-138,951-4.7%
50Illinois-649,689-5.1%
51West Virginia-147,952-8.4%
--🇺🇸 United States21,528,0196.3%

Texas stands out in absolute terms, adding nearly 6.6 million residents, while Idaho leads by percentage at 24.1%. At the other end, West Virginia is projected to experience the steepest percentage decline at -8.4%.

Texas and Florida alone are projected to add about 11.2 million residents, accounting for more than half of total U.S. population growth through 2040. North Carolina (+1.48M) and Georgia (+1.28M) follow, helping the South capture roughly 78% of the nation’s projected gains.

The projections extend a decades-long shift toward the Sun Belt. Looking back at population growth since 1970 shows how dramatically the country’s population center has moved south and west.

14 States Are Projected to Lose Population

While the country overall grows, 14 states are projected to have fewer residents in 2040 than in 2025. Illinois is expected to record the largest absolute decline at roughly 650,000 people, followed by New York at 457,000.

West Virginia is projected to see the steepest percentage decline at 8.4%, followed by Mississippi at 4.7% and Louisiana at 3.3%. Connecticut, by contrast, remains essentially flat.

The Northeast and Midwest combined account for barely 1% of projected U.S. population growth. At the national level, slower natural growth could add further pressure: the U.S. fertility rate fell to a record low in 2025.

A Slower-Growing America

The Cooper Center emphasizes that population projections are scenarios rather than precise forecasts. Migration, fertility, and mortality trends can shift, changing the outlook substantially before 2040.

Beyond the U.S., demographic trajectories are diverging sharply. Some of the world’s fastest-growing countries are expanding rapidly even as aging economies face much slower population growth.

Learn More on the Voronoi App

To explore how aging is reshaping major economies, see Senior Populations of the World’s Largest Economies on the Voronoi app.

Money

Ranked: U.S. Wealth by Generation in 2026

Baby Boomers make up 30% of U.S. households but hold 52% of America’s $185.7 trillion in household net worth.

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Chart comparing each generation's share of U.S. households with its share of U.S. household net worth in Q2 2026, with Baby Boomers holding 52% of the $185.7 trillion total.

How U.S. Wealth Breaks Down by Generation

Key Takeaways

  • Baby Boomers hold $97.4 trillion, or 52% of U.S. household net worth, despite making up just 30% of households.
  • Millennials and Gen Z account for 37% of U.S. households, more than any other generation, but hold only 11% of household wealth.

American households are worth a combined $185.7 trillion, and more than half of that belongs to a single generation.

This graphic compares each generation’s share of U.S. households with its share of household net worth as of Q2 2026, using data from the Federal Reserve’s Distributional Financial Accounts.

Net worth is assets such as homes, stocks, and pensions minus debts like mortgages and credit cards. The Fed assigns each household to a generation based on the birth year of its reference person, typically the head of household, and counts everyone born in 1981 or later as a Millennial, so Gen Z is included in that group.

Why Baby Boomers Hold So Much U.S. Wealth

Decades of accumulating stocks, homes, and pension savings have left Baby Boomers, born between 1946 and 1964, with the largest share of U.S. household wealth.

Generation X is the only generation whose share of wealth closely matches its share of households, at 26% for each, with $47.7 trillion in net worth.

The table below shows each generation’s share of U.S. households and household net worth as of Q2 2026:

GenerationBirth YearsU.S. Household Wealth by Generation, Q2 2026
Share of Households (%)Share of Net Worth (%)Net Worth ($T)
Silent Generation
and older
Before 19466.610.719.78
Baby Boomers1946–196430.452.597.40
Generation X1965–198025.825.747.66
Millennials
(incl. Gen Z)
1981 or later37.211.220.80
All U.S. households--100.0100.0185.65

The Silent Generation and older now head just 7% of households, but those households hold 11% of U.S. household wealth, averaging about $2.2 million in net worth each.

Stock ownership helps set Boomers’ wealth apart. They hold $35.2 trillion in stocks and mutual funds, or 55% of the household total. Their net worth rose by $7.9 trillion in Q2 2026 alone, with $5.5 trillion of that increase coming from equities. That quarterly equity gain alone was equal to more than a quarter of all Millennial and Gen Z wealth.

Millennial Wealth Is Growing, but Boomers Are Adding More

Millennials and Gen Z have grown from 4.9% of U.S. household net worth in Q2 2020 to 11.2% today, as their wealth nearly quadrupled from $5.3 trillion to $20.8 trillion.

Even so, Boomer net worth rose by $38.2 trillion over the same six years, compared with $15.5 trillion for Millennials and Gen Z, who make up the largest generational group in America. A smaller percentage gain on a much larger base can still add more dollars.

The table below shows each generation’s share of U.S. household net worth in the second quarter of every sixth year since 1990:


GenerationShare of U.S. Household Net Worth by Year (%)
1990199620022008201420202026
Silent Generation and older79.767.752.339.527.315.910.7
Baby Boomers19.830.142.251.655.554.352.5
Generation X0.52.25.58.615.724.925.7
Millennials (incl. Gen Z)0.00.00.10.31.64.911.2
Total100.0100.0100.0100.0100.0100.0100.0

The Silent Generation held 80% of household wealth in 1990 and holds 11% today. The Boomer share peaked at 55.5% in 2014 and has slipped only three percentage points since, even as Boomers’ share of households fell from 36% to 30%.

Millennial balance sheets also look very different. Real estate makes up 38% of their assets, compared with 20% for Boomers, and they owe $8.6 trillion, or 43% of all household debt. That is more than Boomers and the Silent Generation owe combined, and equal to 29% of Millennial assets versus 4% for Boomers.

The generational wealth picture will continue to change as Boomers age and assets are transferred to younger generations. How quickly that reshapes the chart will depend not only on inheritances, but also on asset prices, debt, homeownership, and how wealth is distributed within each generation.

Learn More on the Voronoi App

If you enjoyed today’s post, check out Wealth by Generation in the United States on Voronoi.

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China

Ranked: The World’s Best Countries at Reading in 2026

Which countries are best at reading? See the latest PISA scores and how the world’s top education systems compare.

Published

Which countries are best at reading? See the latest PISA scores and how the world's top education systems compare.

Which Countries Have the Highest Reading Scores?

Key Takeaways

  • Singapore leads the ranking with an average PISA reading score of 535, followed by China at 527.
  • Asian education systems occupy all six of the top positions, with Taiwan, Japan, Macao, and Korea rounding out the group.
  • Ireland leads Europe with a score of 500, while the United States and Canada are tied at 490.

Reading performance is declining across many OECD countries, raising concerns about how well students can interpret and evaluate information in an increasingly digital environment.

This visualization ranks 40 countries and economies by their average reading scores in the 2025 PISA assessment, with results published in September 2026.

Conducted by the OECD, PISA measures how well 15-year-olds can apply their knowledge and skills to real-world problems. The 2025 assessment included more than 760,000 students representing roughly 33 million 15-year-olds.

Asian Education Systems Lead the Ranking

Singapore ranks first globally in PISA reading. Its literacy curriculum takes a highly structured approach, combining guided reading, discussion, and targeted support for weaker readers from primary school onward.

The country’s English curriculum also emphasizes higher-order skills such as inference, evaluating arguments, identifying evidence, and critically interpreting information across different types of texts.

China, Taiwan, Japan, Macao, and Korea complete the top six, underscoring the strong showing by Asian education systems.

RankCountryAverage Reading PISA Score
1🇸🇬 Singapore535
2🇨🇳 China527
3🇹🇼 Taiwan508
4🇯🇵 Japan503
5🇲🇴 Macao501
5🇰🇷 Korea501
7🇮🇪 Ireland500
8🇪🇪 Estonia499
9🇳🇿 New Zealand497
10🇬🇧 United Kingdom494
11🇦🇺 Australia491
12🇨🇦 Canada490
12🇺🇸 United States490
14🇵🇱 Poland482
15🇭🇰 Hong Kong480
16🇫🇮 Finland474
16🇮🇹 Italy474
18🇹🇷 Türkiye472
19🇨🇭 Switzerland470
20🇨🇿 Czechia468
21🇦🇹 Austria467
22🇧🇪 Belgium466
22🇸🇪 Sweden466
24🇩🇪 Germany465
25🇱🇹 Lithuania464
26🇵🇹 Portugal462
27🇩🇰 Denmark460
28🇫🇷 France456
29🇭🇷 Croatia453
29🇳🇴 Norway453
31🇭🇺 Hungary452
32🇪🇸 Spain451
33🇸🇰 Slovakia448
34🇸🇮 Slovenia445
35🇱🇺 Luxembourg443
36🇳🇱 Netherlands441
37🇨🇱 Chile436
37🇮🇱 Israel436
39🇦🇪 United Arab Emirates433
40🇱🇻 Latvia430

Ireland Leads Europe

Ireland has the highest reading score among European countries in the dataset, at 500 points. Estonia follows closely at 499, while the United Kingdom rounds out Europe’s top three at 494.

Several major European economies sit much closer to the OECD average of 461. Germany scores 465, while France and Spain come in below the average at 456 and 451, respectively.

North America’s two entries are tied at 490. That puts both the United States and Canada behind the United Kingdom, Australia, Ireland, and Estonia, but 29 points above the OECD average.

Recent research shows that reading for pleasure is declining in the U.S., with just 16.1% of Americans ages 15 and older reading for leisure on an average day in 2025, down from 27% in 2005.

Reading Scores Are Falling

Reading performance has declined significantly across OECD countries over the past decade. Average reading scores fell from 489 points in 2015 to 461 in 2025, a 28-point drop and a steeper decline than in math or science over the same period.

The OECD notes that strong reading skills are increasingly important for finding, evaluating, interpreting, and reflecting on information in a digital environment.

It also reports that weakening reading performance predates the COVID-19 pandemic in many countries, while increased digitalization, longer screen time, and declining reading for enjoyment have coincided with weaker outcomes.

As AI makes information easier to generate and access, the ability to critically evaluate what we read may become even more important.

Learn More on the Voronoi App

If you enjoyed today’s post, check out Countries by Education Spending as % of GDP on Voronoi.

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