St. Louis County, Missouri
St. Louis County is a county in Missouri with an estimated population of 987,059 in 2023. 83 cities, towns and Census places in it are indexed here.
Largest places in St. Louis County
Florissant 51,128Chesterfield 49,166Wildwood 34,851University City 34,096Ballwin 30,410Kirkwood 29,174Maryland Heights 27,575Hazelwood 24,863Webster Groves 23,449Creve Coeur 18,457Manchester 18,012Ferguson 17,996Clayton 17,461Overland 15,496Eureka 13,092Jennings 12,836St. Ann 12,658Crestwood 12,175Town and Country 11,553Bridgeton 11,261Bellefontaine Neighbors 10,370Ellisville 9,801Des Peres 9,099Richmond Heights 9,058Sunset Hills 9,041Ladue 8,880Olivette 8,843Brentwood 8,070Maplewood 8,041Berkeley 8,031Valley Park 6,725Black Jack 6,538St. John 6,460Shrewsbury 6,243Glendale 6,051Dellwood 4,811Rock Hill 4,649Breckenridge Hills 4,348Normandy 4,213Fenton 4,048
About St. Louis County
St. Louis County is one of the counties of Missouri. County governments in Missouri handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.