| Rank | County | Private Non-Farm Establishments | 
|---|---|---|
| 1 | Fairfield County, Connecticut | 26,725 | 
| 2 | Hartford County, Connecticut | 22,470 | 
| 3 | New Haven County, Connecticut | 19,261 | 
| 4 | New London County, Connecticut | 5,675 | 
| 5 | Litchfield County, Connecticut | 4,909 | 
| 6 | Middlesex County, Connecticut | 4,139 | 
| 7 | Tolland County, Connecticut | 2,398 | 
| 8 | Windham County, Connecticut | 2,097 | 
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