There were 13,375 total businesses in the county zip codes, with 2,144 retail trade businesses (16%) accounting for the largest proportion of these businesses. 7,989 businesses (59.7%) had fewer than five employees, and 130 (1%) had 250 or more.
The county with the largest median business size was Cumberland County. Median-sized businesses in Cumberland County was between five and nine.
The following table shows the median business size in all New Jersey counties.
Median business size in all New Jersey counties (2016)
| County | Total Employees |
|---|---|
| Atlantic County | 1-4 |
| Bergen County | 1-4 |
| Burlington County | 1-4 |
| Camden County | 1-4 |
| Cape May County | 1-4 |
| Cumberland County | 5-9 |
| Essex County | 1-4 |
| Gloucester County | 1-4 |
| Hudson County | 1-4 |
| Hunterdon County | 1-4 |
| Mercer County | 1-4 |
| Middlesex County | 1-4 |
| Monmouth County | 1-4 |
| Morris County | 1-4 |
| Ocean County | 1-4 |
| Passaic County | 1-4 |
| Salem County | 1-4 |
| Somerset County | 1-4 |
| Sussex County | 1-4 |
| Union County | 1-4 |
| Warren County | 1-4 |
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