Welcome to this
St. Louis County Missouri
Genealogy Trails Website
Our goal is to help you track your ancestors through time by transcribing genealogical and historical data and placing it online for the free use of all researchers
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St. LOUIS COUNTY
St. Louis is one of the original districts.
Organized Oct. 1, 1812 and became the first government seat for the Missouri Territory; until 1820.
On Dec. 9, 1822 it was incorporated as a city.
In 1876 the city of St. Louis separated from the county, making two different governments. The city of St. Louis is an independent city, but the information here will cover both the city and county of St. Louis.
Modern-day St. Louis county is the most populous county in Missouri.
The county seat is Clayton
Ballwin * Bella Villa * Bellefontaine Neighbors * Bellerive * Bel-Nor * Bel-Ridge * Berkeley * Beverly Hills * Black Jack * Breckenridge Hills * Brentwood * Bridgeton * Calverton Park * Champ * Charlack * Chesterfield * Clarkson Valley * Clayton (county seat) * Cool Valley * Country Club Hills * Country Life Acres * Crestwood * Creve Coeur * Crystal Lake Park * Dellwood * Des Peres * Edmundson * Ellisville * Eureka * Fenton * Ferguson * Flordell Hills * Florissant * Frontenac * Glencoe * Glendale * Glen Echo Park * Grantwood Village * Greendale * Green Park * Hanley Hills * Hazelwood * Hillsdale * Huntleigh * Jennings * Kinloch * Kirkwood * Ladue * Lakeshire * Mackenzie * Manchester * Maplewood * Marlborough * Maryland Heights * Moline Acres * Normandy * Northwoods * Norwood Court * Oakland * Olivette * Overland * Pacific * Pagedale * Pasadena Hills * Pasadena Park * Pine Lawn * Richmond Heights * Riverview * Rock Hill * Shrewsbury * St. Ann * St. John * Sunset Hills * Sycamore Hills * Town and Country * Twin Oaks * University City * Uplands Park * Valley Park * Velda City * Velda Village Hills * Vinita Park * Vinita Terrace * Warson Woods * Webster Groves * Wellston * Westwood * Wilbur Park * Wildwood * Winchester * Woodson Terrace