Overall & key sector Chicago workforce statistics:

Total Employment: 4.1 million
Total Private Sector: 3.6 million
Construction: 205,000
Manufacturing: 464,000
Transportation and Utilities: 185,000
Information: 94,000
Financial Activities: 319,000
Professional and Business Services: 646,000
Education and Health Services: 504,000
Leisure and Hospitality: 353,000
Other Services: 177,000
Government: 520,000

Based on Chicago PMSA. The PMSA (primary metropolitan statistical area) consists of the nine-county Chicago region. Data is for 2004.