St. Charles County, with a population of 337,572, has been one of the fastest-growing counties in the country for decades, with 55 percent growth in the 1980s, 33 percent in the 1990s, and another 13 percent between 2000 and 2004. The county features a cross-section of industry, as well as extensive retail and some agriculture. With the Missouri River on the south and the Mississippi on the north and east, the county is bisected east to west by Interstate 70. St. Charles County has two small airports and two ferries that cross the Mississippi River. The City of St. Charles is the county seat.
| Demographics |
| Population |
| Population |
356,206 |
| Households |
131,884 |
| Average Age |
36 |
| Educational Attainment |
| High School Graduates |
48.6% |
| Associate Degree |
7.9% |
| Bachelor's Degree |
23.8% |
| Graduate Degree |
11.7% |
| Income |
| Median Household Income |
$71,617 |
| Per Capita Income |
$30,007 |
| Employment by Industry |
| Agriculture, Mining |
0.5% |
| Construction |
7.7% |
| Trade, Transp., Utilities |
23.4% |
| Manufacturing |
16.2% |
| Public Administration |
3.2% |
| Financial services |
5.8% |
| Information |
3.7% |
| Education and Health |
16.7% |
| Leisure and Hospitality |
7.5% |
| Professional Bus. Services |
7.5% |
| Other services |
7.9% |
| Labor Characteristics |
| Labor Force |
200,393 |
| Population, 16+ |
275,354 |
| Unemployment Rate: |
4.6% |
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|
 |
| Largest Employers |
| Company |
Industry |
Employment |
| MasterCard International Inc. |
Financial Services |
2700 |
| Ameristar Casinos Inc. |
Entertainment |
2200 |
| Verizon |
Telecom |
2070 |
| Citimortgage |
Financial Services |
1900 |
| Francis Howell School District |
Education |
1416 |
| MEMC Electronic Materials Inc. |
Manufacturing |
1200 |
| Fort Zumwalt School District |
Education |
1188 |
| Wentzville R-IV School District |
Education |
827 |
| St. Charles City R-VI School District |
Education |
800 |
| LMI Aerospace Inc. |
Manufacturing |
800 |
| St. Charles Community College |
Education |
750 |
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| Commuting Patterns (www.census.gov) |
County of Residence |
Workplace County |
Number of Employees |
% of Commuters |
| St. Charles County, MO |
St. Charles County, MO |
70,058 |
71% |
| St. Louis County, MO |
St. Charles County, MO |
12,859 |
13.03% |
| Lincoln County, MO |
St. Charles County, MO |
5,529 |
5.60% |
| Warren County, MO |
St. Charles County, MO |
2,967 |
3.01% |
| St. Louis City, MO |
St. Charles County, MO |
1,439 |
1.46% |
| Jefferson County, MO |
St. Charles County, MO |
1,291 |
1.31% |
| Madison County, IL |
St. Charles County, MO |
1,051 |
1.07% |
| Franklin County, MO |
St. Charles County, MO |
766 |
.78% |
| St. Clair County, IL |
St. Charles County, MO |
640 |
.65% |
| Montgomery County, MO |
St. Charles County, MO |
362 |
.37% |
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