US Population By State, 2018
Updated on January 27, 2024.
The US Census Bureau estimated that there were 326,838,199 people living in the United States in 2018. The chart below shows the state level population for each US state. California was the most populated state (39,437,463), followed by Texas (28,624,564), and then Florida (21,254,926). Wyoming was the least populated state with a population of 579,054.
Hover over the states to see the number and percentage of the US population that lives in each of the states. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further. We also have links to the county level population for each state in a section below.
Hover/Click on the states to see the details.
Data Source: US Census Bureau (NST-EST2019-01).
US Population By State, 2018
less than 1M
1M - 2M
2M - 5M
5M - 10M
10M - 15M
Over 15M
See also Population estimate for other years:
Table of US 2018 Population by State
State | Population | % US Population |
|---|---|---|
| Alabama | 4,891,628 | 1.50% |
| Alaska | 736,624 | 0.23% |
| Arizona | 7,164,228 | 2.19% |
| Arkansas | 3,012,161 | 0.92% |
| California | 39,437,463 | 12.07% |
| United States Total | 326,838,199 | 100% |
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US Population By County for Each State
We also have the county level population for each US state. Use the following links to find them.