Map of the United States: A Complete Visual Guide
A map of the United States looks simple at a glance — a familiar outline most people could sketch from memory. But behind that shape is one of the most geographically diverse countries on Earth: swamps and snow-capped peaks, deserts and rainforests, all packed into 50 states spread across a continent and two separate islands in the Pacific and the Arctic.
Whether you're studying for a geography class, planning a road trip, or just curious how the country is actually laid out, this guide walks through the US map piece by piece: the states, the regions, the borders, the geography, and how the whole picture came together over the last 250 years.
Quick Facts About the US Map
- Total area: About 3.8 million square miles (9.8 million km²) — the third or fourth largest country in the world depending on how disputed territories are counted.
- States: 50, plus the federal district of Washington, D.C. and several inhabited territories.
- Coastlines: Borders both the Atlantic and Pacific Oceans, plus the Gulf of Mexico and the Arctic Ocean (via Alaska).
- Land borders: Shares borders with Canada (the longest international border in the world) and Mexico.
- Time zones: Four across the contiguous states, six including Alaska and Hawaii, nine including all territories.
The 50 States, Grouped by Region
Maps of the United States are usually easier to understand once you group the 50 states into broader regions. While there's no single official system, most geographers and atlases use a version of the following four-region model:
| Region | Examples of States | Known For |
|---|---|---|
| Northeast | New York, Massachusetts, Pennsylvania, Maine | Dense cities, colonial history, fall foliage |
| South | Texas, Florida, Georgia, Tennessee | Warm climate, Gulf Coast, Appalachian culture |
| Midwest | Illinois, Ohio, Michigan, Minnesota | Great Lakes, farmland, manufacturing cities |
| West | California, Colorado, Washington, Arizona | Mountains, deserts, Pacific coastline |
Alaska and Hawaii don't fit neatly into any of these four regions geographically, which is why printed maps almost always place them in small inset boxes — usually near the Gulf of Mexico — rather than drawing them at true scale and distance.
Countries and Oceans That Border the US
On the map, the United States is bordered by exactly two countries on land:
- Canada to the north, sharing the longest international land border in the world at over 5,500 miles, including the Alaska–Canada border.
- Mexico to the south, along a roughly 2,000-mile border stretching from California to Texas.
By water, the country touches the Atlantic Ocean to the east, the Pacific Ocean to the west, the Gulf of Mexico to the southeast, and the Arctic Ocean along Alaska's northern coast. Across the Bering Strait, Alaska also sits just over 50 miles from Russia at its closest point.
Major Geographic Features
A few landmarks define the overall shape and feel of the US map:
- The Rocky Mountains — running north to south through the western states, splitting the country into a flatter east and a more mountainous west.
- The Mississippi River — often treated as the rough dividing line between the "eastern" and "western" halves of the country, flowing from Minnesota down to the Gulf of Mexico.
- The Great Lakes — Superior, Michigan, Huron, Erie, and Ontario — forming much of the northern border with Canada in the Midwest.
- The Appalachian Mountains — an older, lower mountain range running along the East Coast from Georgia to Maine.
- The Great Plains and deserts — covering much of the central and southwestern US, including the Mojave and Sonoran Deserts.
Time Zones on the Map
Because the country is so wide, the map is also sliced into time zones from east to west. If you've ever wondered exactly where one zone ends and another begins, or what EST, CST, MST, and PST actually mean, we cover that in detail in our guide to USA time zones explained.
How the US Map Has Changed Over Time
The familiar 50-state outline is actually a fairly recent development in the country's history. In 1776, the map of the United States was just 13 colonies hugging the Atlantic coast. From there, the country expanded west in stages:
- 1803: The Louisiana Purchase roughly doubled the size of the country overnight, adding land that would eventually form all or part of 15 future states.
- 1845–1848: The annexation of Texas and the Mexican-American War added the Southwest, including California, Arizona, and New Mexico.
- 1867: The US purchased Alaska from Russia for about two cents an acre — a deal widely mocked at the time and considered a bargain in hindsight.
- 1959: Alaska and Hawaii became the 49th and 50th states, completing the map most people recognize today.
For a deeper look at exactly how many states make up the country and how that number grew, see our companion guide, how many states are in the USA.
Frequently Asked Questions
How many states are shown on a map of the United States?
A standard map shows all 50 states, though Alaska and Hawaii are usually displayed as inset boxes since they aren't geographically connected to the other 48 states.
What countries border the United States?
The United States borders Canada to the north and Mexico to the south. Alaska also shares a maritime boundary with Russia across the Bering Strait.
What region is the Pacific Northwest?
The Pacific Northwest typically refers to Washington and Oregon, and sometimes includes parts of Idaho and northern California.
What is the largest state by area on the US map?
Alaska is by far the largest US state by area — more than twice the size of Texas, the second largest state.
How many time zones appear on a map of the US?
A full map including territories crosses nine time zones, though the 48 contiguous states alone span four: Eastern, Central, Mountain, and Pacific.
Did the shape of the US map always look the same?
No. The map has changed dramatically since 1776, growing from 13 original colonies on the East Coast to 50 states through purchases, treaties, and annexations.
Final Thoughts
The map of the United States tells a story that goes far beyond geography — it's a record of purchases, wars, treaties, and two unlikely additions across the ocean. Once you can picture the regions, the borders, and the major landmarks, the country stops being just an outline and starts making a lot more sense as a place.
Next, you might want to check out our full list of US states and capitals, or learn how to read a US map like a pro.
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