CBP data indicates that there were 263 total businesses in Martin County zip codes.
The following table gives a breakdown of businesses in Martin County by total employees in 2017.
Businesses in Martin County (2017) by total employees
| Total employees | Total businesses |
|---|---|
| 0 to 4 | 144 |
| 5 to 9 | 58 |
| 10 to 19 | 32 |
| 20 to 49 | 20 |
| 50 to 99 | 3 |
| 100 to 249 | 0-2 |
| 250 to 499 | 0-2 |
| more than 500 | 0-2 |