There were 1,204 total businesses in the county zip codes, with 195 construction businesses (16.2%) accounting for the largest proportion of these businesses. 739 businesses (61.4%) had fewer than five employees, and four (0.3%) had 250 or more.
The county with the largest median business size was Campbell County. Median-sized businesses in Campbell County was between five and nine.
The following table shows the median business size in all Wyoming counties.
Median business size in all Wyoming counties (2016)
| County | Total Employees |
|---|---|
| Albany County | 1-4 |
| Big Horn County | 1-4 |
| Campbell County | 5-9 |
| Carbon County | 1-4 |
| Converse County | 1-4 |
| Crook County | 1-4 |
| Fremont County | 1-4 |
| Goshen County | 1-4 |
| Hot Springs County | 1-4 |
| Johnson County | 1-4 |
| Laramie County | 1-4 |
| Lincoln County | 1-4 |
| Natrona County | 1-4 |
| Niobrara County | 1-4 |
| Park County | 1-4 |
| Platte County | 1-4 |
| Sheridan County | 1-4 |
| Sublette County | 1-4 |
| Sweetwater County | 1-4 |
| Teton County | 1-4 |
| Uinta County | 1-4 |
| Washakie County | 1-4 |
| Weston County | 1-4 |
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