There were 14 health care and social assistance businesses in Custer County ZIP Codes with between five and nine employees in 2021, according to County Business Patterns (CBP) statistics provided by the United States Census Bureau.
CBP data indicates no other industry had more establishments with between five and nine employees in Custer County ZIP Codes than health care and social assistance businesses.
The following table shows industries of total establishments with between five and nine employees in Custer County in 2021.
| Industry | Total Establishments |
|---|---|
| Health care and social assistance businesses | 14 |
| Retail trade businesses | 11 |
| Construction businesses | 8 |
| Accommodation and food services businesses | 6 |
| Professional, scientific and technical services businesses | 5 |
| Administrative, support, waste management and remediation services businesses | 5 |
| Real estate, rental and leasing businesses | 3 |



