Between 2020 and 2024, the population of people in their 30s rose by 4.5%, and people in their 40s grew by 4.1%. That’s higher than the population of the nation as a whole, which went up 2.6%.

Older adults now outnumber children in almost half of the counties in the U.S., new data released Thursday from the Census Bureau shows. About 45 percent of the nation’s more than 3,100 counties ...

Texas remains younger than other states, but the number of older Texans has outpaced that of any other age group.