
Job growth (2000-2007): 63.69%
A population boom in this rural area just outside of Chicago has meant boom times for businesses. Kendall County's employment growth reflects a healthy restaurant trade, gains in construction and an influx of malls, shopping centers and big-box stores.
The population spike has meant a major infrastructure boost, including highway improvements and a $30 million courthouse expansion. The county is considering extending the commuter rail line from Chicago, which could fuel even more growth. Top employers include home-improvement chain Menard, heavy-equipment maker Caterpillar and energy provider ANR Pipeline. --B.B.
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Last updated July 28 2008: 10:24 AM ET