Venn diagram
Venn Diagram: US States
Three circles, eight states. Click where each state belongs: in one circle, two, all three, or none. Coasts, neighbours, regions, big and small states, the Mississippi and the original 13, in a new diagram every time.
- Left
- 8
- Score
- 0/8
- Time
- Time left: 3:00
Three circles, three categories. One state at a time, click the region where it belongs: inside one, two or all three circles, or outside them all. Each of the eight regions holds exactly one state of the round. Right or wrong, you see the answer and the three facts behind it straight away. Keyboard: Tab moves between the regions, Enter picks one.
Finding your next challenge…
How it works, data and sources
Every round is generated for you: three circles, each a category, and eight places named one at a time. Click the region where each one belongs: inside one, two or all three circles, or outside the diagram. Each of the eight regions holds exactly one of the eight places. You score a point for each place in the right region; right or wrong, the answer shows at once, with the three facts behind it, and the place stays in its region. A challenge link replays the same round in the same language.
Each round is checked as it is made: every place asked is clearly in or clearly out of each circle, so exactly one region is right, and a place named in a category (“Borders Germany”) is never asked. Figures only count when they are clear: “more than 10 million people” means at least a quarter more (under 8 million is clearly fewer), and “more people” or “larger” than a named country means at least one and a half times as much.
Regions are the four US Census Bureau regions. Borders are those of our Border Blitz (river boundaries count; Four Corners states and states facing each other across a lake or a sound are never asked about each other), and the same rules give the number of neighbouring states. Coastlines follow our landlocked states quiz: the Atlantic, Pacific and Arctic Oceans and the Gulf of Mexico, bays and sounds included; Great Lakes shores are not ocean coast. The ten most populous states are the Census Bureau’s Vintage 2025 estimates (1 July 2025), and the ten largest and smallest are by total area, land and water, from Census TIGERweb (January 2026), as in our ranking quizzes. The 13 original states ratified the Constitution in 1787–1790.
Never asked: states whose Census region often surprises people (such as Delaware, Maryland, Texas, Oklahoma, Missouri and the Dakotas) with a region circle; Pennsylvania with a coast (its only tidal shore is the Delaware River estuary); Ohio and Pennsylvania with Canada (they meet it only in Lake Erie); Minnesota and Louisiana with the Mississippi (it runs through them; small pieces of other states cut off by changes in the river’s course do not count); states within 10% of tenth place with a top ten (Michigan and New Jersey by population; Oregon, Wyoming and Michigan by area).
Letter categories read the names shown, in this language. A letter with an accent is not the same letter, and a name that has it only with an accent is never asked with it; Y counts as neither a vowel nor a consonant; a name with a hyphen or an apostrophe is never counted in words. Because names differ between languages, the same challenge link can give a different round in another language.
US Census Bureau: Census Regions and Divisions of the United States
Census Bureau: Vintage 2025 state population estimates