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The United States is home to 349,035,494 people in 2026. That is a 2.3-fold increase on the 154,202,680 recorded in 1950. It is growing modestly, at +0.49% a year, adding about 1.7M people a year. Population density sits at 38 people/km². Half the population is younger than 38.7 years, and the age structure is steadily tilting older: the median is projected to reach 41.9 by 2050. The sexes are close to evenly balanced, at 101 males per 100 females. By 2100, UN projections see it rising to 421,278,889, up +21% from 2026.
Total population
349,035,494
Density
38 people/km²
Median age
38.7 years
Growth rate
+0.49%
The United States' population continues to grow, though at a moderate pace. The population is gradually aging, with median age projected to reach 42 by 2050 (up from 39 in 2026).