Hawaii is the only US state with no incorporated municipalities

Alaska has boroughs instead of counties, and nearly half the state has no borough-level government

Alaska's "Unorganized Borough" covers about 323,440 square miles—larger than the entire state of Texas—and lacks a borough-level government, so the state provides services that would typically be managed by counties or boroughs elsewhere.

Hawaii and New York have the highest tax burdens out of all US states, both exceeding 12% of income

The term "tax burden" in this case refers to property, income, sales, and excise taxes as a share of total personal income. Alaska and New Hampshire have the lowest total tax burdens in the US, both falling below 6%.

American local government comes in five distinct forms

Counties, municipalities, townships, special districts, and school districts are each created for a different purpose, operating under different rules, and answerable to the state in different ways. Special districts, the least known of the group, are created for specific purposes, such as transit or fire protection.

Why Hawaiians live longer

Hawaii has the longest life expectancy at birth out of all 50 states, according to the US Centers for Disease Control and Prevention. Key factors include strong healthcare, lots of sunlight, and active lifestyles.

Louisiana has parishes instead of counties

Louisiana is the only US state that uses parishes rather than counties as its primary local government unit. The distinction traces back to the state's French and Spanish Catholic colonial heritage.

Hawaiians must earn higher annual salaries than anywhere else in the country—roughly $229K—to purchase a typical home

This map of the US shows the annual income required to purchase a typical three-bedroom home in each state. This is based on a 10% down payment, a 6.65% interest rate on a 30-year fixed mortgage, and a 30% income-to-housing cost threshold, including taxes and insurance, according to recent data from Realtor.com. According to the data, Hawaii is the state where you'd need the highest yearly income.

Illinois has more local governments than any other state

As of 2022, there were a reported total of 90,837 local government units across the US. Illinois had the highest number with 6,930, followed by Texas with 5,533. Explore all the data from the 2022 Census of Governments, which takes place every five years.

Hawaii lived under martial law for nearly three years after Pearl Harbor

After the attack, Hawaii was placed under sweeping military rule—curfews, censorship, warrantless arrests, ID papers, and mass detentions transformed everyday life. More than 2,000 people were arrested within 48 hours of the attack, and the islands remained under martial law for nearly three years.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

The US has 575 federally recognized tribal nations, each a sovereign government

Tribal governments are sovereign, with authority to pass laws, run courts, and levy taxes on their lands. Unlike cities or counties, they are not created by states. Their sovereignty predates the United States itself and is recognized in the Constitution, treaties, and federal law.

Hawaii formed from oceanic plate movement over a hot spot in the mantle

Abnormally hot magma rose through the crust and emerged from the seafloor, where it cooled and piled onto layers that became tall enough to form an island. As the plate moved, the existing island moved away and a new one formed over the hot spot, repeating for each Hawaiian island.

Some California cities outsource their public services entirely to the county

Southern California's "contract cities" incorporate as municipalities but pay Los Angeles County for police, fire, and other services rather than running their own departments—a cost-saving model common across the region.

The coolest ghost towns in every US state

Trying to avoid crowds? This list from Thrillist compiles various ghost towns across the United States, highlighting their unique characteristics and explaining why they were abandoned. Peruse this comprehensive list to learn more about why people left these areas and what's still there. If you're looking for additional creepiness, explore and find out which of these spots are particularly haunted!

Global CO2 levels as measured at Hawaii’s Mauna Loa Observatory, managed by the US government’s NOAA.

The Global Monitoring Laboratory conducts research on greenhouse gas and carbon cycle feedbacks, changes in clouds, aerosols, and surface radiation, and recovery of stratospheric ozone.

Read why some states are considering imposing a flat tax rate that isn't adjusted by income

Wisconsin was the first US state to impose a state income tax, close in time to when the federal income tax went into effect. Many states followed suit, but nine states to this day still don't levy wage-related taxes.

37 states today limit how long governors can serve

Most states cap governors to two consecutive four-year terms, though rules vary—Virginia is unique in allowing only one term at a time. These limits reflect a long tradition of restricting executive power at the state level.

Not all public lands are part of the National Park System

The entire National Park System is located on public lands. There are four different land management agencies in the United States, including the National Park Service.

Massachusetts is the only state that bans all non-professional fireworks

See this overview of the firework rules across all 50 states and Washington, D.C. It states that Indiana's rules are relatively loose as compared with other states. Beyond state and local rules on firework purchases and use, there are also regulations about the fuses on fireworks—they must burn between three and nine seconds to help reduce the risk of injury if the user doesn't get away quickly enough.

See the list of monarchs who have addressed a joint session of the US Congress

Only 11 monarchs have ever addressed a joint meeting of Congress, beginning with Hawaii's King Kalakaua in 1874. King Charles III of the United Kingdom became the most recent in April 2026.

There is no clear national standard of laws for autonomous vehicle

Some US states allow self-driving vehicles to operate without a human driver present, while others require a licensed driver to be behind the wheel. As of January 2023, a total of 21 states have legalized autonomous vehicles in public, with six focused solely on semi-trucks.

Inactivated polio virus vaccine is the only one offered in the US—it contains no live virus

Inactivated polio virus vaccines cannot cause illness because the virus isn't alive. It's been the only polio inoculation offered in the United States since 2000 and provides almost complete protection

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

The US lacked a national anthem for the first 8 Olympics

Although songs like “The Star-Spangled Banner” and “America the Beautiful” were informal anthems, the country did not have an official national anthem. That changed in 1931, when President Herbert Hoover signed a bill into law designating the song as the national anthem.

Smart cities like Songdo, South Korea, have created isolating environments

Built as a futuristic, eco-friendly city filled with smart features like pneumatic trash systems and app-controlled homes, the town provides limited opportunities for face-to-face interactions amid sterile backdrops. A focus on high-rise housing amplifies the lonely, disconnected atmosphere.

16 credit unions with almost no membership requirements

One of the hallmarks of credit unions is that they tend to be exclusive. For instance, one of the largest credit unions only does business with Boeing employees. However, this roundup introduces 16 credit unions that have practically no membership requirements. Interested customers may need to guarantee $5 minimum deposits and in some cases, make a donation to an affiliated charitable organization.

Rhode Island skipped the Constitutional Convention

Delegates from 12 of the original 13 states attended the 1787 Constitutional Convention. Rhode Island initially refused to participate, fearing centralized power. The state eventually joined the new republic after its ratification.

The US produces far more waste and recycles far less of it than other developed countries

The US represents just 4% of the world’s population, but it produces 12% of global municipal solid waste. In comparison, China and India make up more than 36% of the world’s population and generate 27% of that waste.

Despite being favored by 87% of Americans, Congress does not have term limits.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

Corals are themselves not coral reefs—the term refers to the tiny marine invertebrates that build the rigid reef.

Hurricanes, which rely on air consistently spinning in the same direction, cannot cross the equator because air curves in opposite directions north and south of it.

44% of Americans say they pray at least once a day—discover how your state's religiosity stacks up against the rest of the country.

Pure water does not conduct electricity because this flow of energy requires the movement of charged particles, and water is a neutral molecule.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.

The United States has had a tumultuous relationship with Cuba since its 1959 revolution, highlighted by a nuclear crisis and a decades-long trade embargo.

Louisiana's 'Cancer Alley' is infamous for having some of the highest industrial pollution, toxic air emissions, and cancer risks in the US.

Human-to-human transmission of hantavirus remains extremely rare, so the 2026 hantavirus cruise ship outbreak doesn't mean we're facing a COVID-style pandemic risk.

Volcanoes 'die' when their supply of magma runs out, if they are shifted away from their underlying magma reservoir, or if they get clogged by collapsing or their magma cooling back into rock.

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

Comedy legend Catherine O'Hara, star of 'Schitt's Creek' and 'Home Alone,' quit 'Saturday Night Live' after just one week to return to her old job.

Recent research found that the brain doesn't seem to massively rewire following amputation—upending earlier beliefs about the cause of phantom limb pain.

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace