Maps of the US
Most people know California and Texas used to be Mexico. But did you know half of Colorado was too? Nevada, Arizona, New Mexico, and Utah were completely Mexican. Even bits of Wyoming, Kansas, and Oklahoma. This map shows all 447 counties that became American in the 1840s and 1850s.
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Four maps breaking down the 2024 election by education and gender show how dramatically voting patterns differ across America. College-educated women favored Harris 61-37%, while college-educated men split more evenly at 51-47% for Harris. Non-college women went narrowly for Trump 52-46%, but non-college men backed Trump decisively at 61-37%.
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How does the poorest U.S. state look next to nations around the world? Life expectancy, HDI, and GDP per person show some unexpected contrasts.
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Remember when October actually felt cool? Those days are fading. New climate data reveals every US county now has warmer falls than in 1970. The Southwest saw the biggest jumps – Reno warmed by 7.7°F (4.3°C). Explore interactive maps to see exactly how much your area changed.
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Air conditioning transformed American homes in the 20th century. Here’s how it began, where it’s most common today, and which states hardly use it at all.
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From the current 2024–2028 electoral map to a “what-if” version based purely on population, these maps offer a fresh look at how political power is distributed across the United States.
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A side-by-side world maps show how global trade has changed since 2000. China has rapidly expanded its influence, becoming the top trading partner for much of the world – overtaking both the U.S. and the EU in many regions.
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China started building railways in the 19th century – just like the Untied States – but when it comes to high-speed rail, it’s left the U.S. in the dust.
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It’s hard to believe, but until 1967, marrying someone of a different race was still illegal in parts of the U.S. This map shows where those bans were still in place just one year before the Supreme Court struck them down for good.
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Steel or concrete? A closer look at 743,398 bridges across the U.S. reveals which material wins out – by county. This colorful map based on the latest 2025 National Bridge Inventory shows how bridge-building choices differ from place to place.
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