Population density in the U.S., by state 2019

In 2019, Washington, D.C. had the highest population density in the United States, with 11,570 people per square mile. As a whole, there were 93 residents per square mile in the U.S., and Alaska was the state with the lowest population density, with 1.3 residents per square mile.

The problem of population density

Simply put, population density is the population of a country divided by the area of the country. While this can be an interesting measure of how many people live in a country and how large the country is, it does not account for the degree of urbanization, or the share of people who live in urban centers.

For example, Russia is the largest country in the world and has a comparatively low population, so its population density is very low. However, much of the country is uninhabited, so cities in Russia are much more densely populated than the rest of the country.

Urbanization in the United States

While the United States is not very densely populated compared to other countries, its population density has increased significantly over the past few decades. The degree of urbanization has also increased, and well over half of the population lives in urban centers.

Population density in the U.S. by federal states including the District of Columbia in 2019

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Release date

December 2019


United States

Survey time period


Supplementary notes

Data has been calculated by dividing the population estimates by total land area in square miles as published by the Census Bureau as part of the Statistical Abstract of the United States: 2012. The data can be accessed here.

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Statistics on "Demographics of the U.S. Part I"

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