Special Report

This is the Youngest County in South Carolina

Sean Pavone / Getty Images

As the baby boomer generation continues to age into retirement and birth rates slow nationwide, the U.S. population is rapidly growing older. The number of Americans older than 55 grew by 27% in the last decade, 20 times faster than the growth rate of the under 55 population, according to census data analysis. Currently, the median age in the United States is about 38. By 2060, the median age is projected to be 43.

Though the United States as a whole is aging rapidly, there are parts of the country where the number of young people is a defining demographic characteristic. In nearly every state, there is at least one county where the median age is below the national figure.

The median age in Richland County is 33.4 years, making it the youngest county or county equivalent in South Carolina. For context, the median age across the state as a whole is 39.4.

Of the 411,357 people living in Richland County, 21.5% are under age 18 and 12.3% are 65 or older. Meanwhile, 22.0% of all South Carolina residents are under 18 and 17.2% are at least 65 years old.

All data for this story are five-year estimates from the U.S. Census Bureau’s 2019 American Community Survey. Counties were ranked based on the median age of all residents. In the case of a tie, the county with the largest share of the population under age 18 ranked as the youngest. This is the youngest county in every state.

Youngest county or county equivalent Median age (years) State median age (years) County population
Alabama: Pike County 31.2 39.0 33,333
Alaska: Kusilvak Census Area 24.1 34.3 8,250
Arizona: Coconino County 30.7 37.7 141,274
Arkansas: Washington County 32.0 38.1 232,289
California: Tulare County 31.0 36.5 461,898
Colorado: Alamosa County 31.8 36.7 16,107
Connecticut: Tolland County 37.7 41.0 151,063
Delaware: Kent County 37.7 40.6 176,699
Florida: Leon County 31.0 42.0 289,770
Georgia: Chattahoochee County 24.5 36.7 10,560
Hawaii: Honolulu County 37.9 39.1 984,821
Idaho: Madison County 23.5 36.4 39,100
Illinois: Champaign County 30.1 38.1 209,922
Indiana: Tippecanoe County 28.2 37.7 191,553
Iowa: Story County 26.6 38.2 96,941
Kansas: Riley County 25.1 36.7 75,056
Kentucky: Christian County 28.3 38.9 71,414
Louisiana: Lincoln Parish 28.3 36.9 47,246
Maine: Androscoggin County 41.0 44.7 107,602
Maryland: Baltimore 35.4 38.7 609,032
Massachusetts: Suffolk County 32.8 39.5 796,605
Michigan: Isabella County 28.1 39.7 70,688
Minnesota: Blue Earth County 31.0 38.0 66,795
Mississippi: Oktibbeha County 26.1 37.5 49,512
Missouri: Pulaski County 27.6 38.6 52,425
Montana: Roosevelt County 30.2 39.9 11,175
Nebraska: Thurston County 27.5 36.5 7,181
Nevada: Elko County 34.1 38.0 52,297
New Hampshire: Strafford County 36.9 42.9 129,124
New Jersey: Hudson County 35.3 39.9 670,046
New Mexico: Roosevelt County 30.0 37.8 18,888
New York: Tompkins County 31.1 38.8 102,642
North Carolina: Onslow County 26.4 38.7 195,069
North Dakota: Sioux County 28.2 35.1 4,373
Ohio: Athens County 29.6 39.4 65,917
Oklahoma: Payne County 27.3 36.6 81,815
Oregon: Benton County 33.0 39.3 91,107
Pennsylvania: Centre County 32.3 40.8 161,960
Rhode Island: Providence County 37.4 39.9 635,737
South Carolina: Richland County 33.4 39.4 411,357
South Dakota: Todd County 23.8 37.0 10,195
Tennessee: Montgomery County 30.8 38.7 200,180
Texas: Brazos County 26.5 34.6 222,981
Utah: Utah County 24.8 30.8 605,490
Vermont: Chittenden County 36.5 42.9 162,646
Virginia: Lexington 22.3 38.2 7,241
Washington: Whitman County 24.7 37.7 49,231
West Virginia: Monongalia County 31.7 42.5 105,474
Wisconsin: Menominee County 32.0 39.5 4,558
Wyoming: Albany County 27.6 37.7 38,390

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