With 998,954 residents, St. Louis County is the most populous of the metropolitan-area counties. There is still some agriculture along the Missouri River in the north, but overall the area is thoroughly suburban with many corporate offices and service businesses. Clayton, the county seat, is often called the St. Louis area's "second downtown".
| Demographics |
| Population |
| Population |
998,954 |
| Households |
404,765 |
| Average Age |
40 |
| Educational Attainment |
| High School Graduates |
90.7% |
| Associate Degree |
6.8% |
| Bachelor's Degree |
23.5% |
| Graduate Degree |
15.6% |
| Income |
| Median Household Income |
$57,561 |
| Per Capita Income |
$33,344 |
| Employment by Industry |
| Agriculture, Mining |
0.4% |
| Construction |
4.7% |
| Trade, Transp., Utilities |
19.4% |
| Manufacturing |
10.5% |
| Public Administration |
3.1% |
| Financial services |
9.2% |
| Information |
2.9% |
| Education and Health |
24.1% |
| Leisure and Hospitality |
8.9% |
| Professional Bus. Services |
12.1% |
| Other services |
4.7% |
| Labor Characteristics |
| Labor Force |
527,140 |
| Population, 16+ |
793,932 |
| Unemployment Rate: |
7.1% |
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| Largest Employers |
| Company |
Industry |
Employment |
| Boeing Defense, Space & Security |
Manufacturing |
15600 |
| Washington University in St. Louis |
Education |
13483 |
| SSM Health Care |
Health Care |
12548 |
| Schnuck Markets Inc. |
Retail |
10951 |
| Wal-Mart Stores Inc. |
Retail |
10800 |
| Sisters of Mercy Health System |
Health Care |
8926 |
| Special School District of St. Louis |
Education |
5894 |
| National Geospatial Intelligence Agency |
Government |
5300 |
| Enterprise Holdings |
Transportation |
4887 |
| Edward Jones |
Financial Services |
4873 |
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