| Williston - Occupational Data | FIPS Code=07085 |
| 1970 | |
| Employed Population | 1289 |
| Professional - Technical - Kindred | 387 |
| Non-Farm Manager - Administrator | 103 |
| Sales Worker | 88 |
| Clerical Worker | 251 |
| Craftsperson - Foreperson | 111 |
| Non-Transport Operative | 42 |
| Transport Operative | 25 |
| Non-Farm Laborer | 45 |
| Farmer - Farm Manager | 52 |
| Farm Laborer | 23 |
| Non-Private Service | 128 |
| Household Service | 9 |
| Occupation Not Reported | 25 |
| 1980 | 1990 | |
| Employed Population | 1981 | 2865 |
| Executive - Administrator | 297 | 588 |
| Professional Speciality | 381 | 591 |
| Technicians - Related Support | 117 | 165 |
| Sales | 244 | 290 |
| Administrative - Clerical | 270 | 470 |
| Private Household Service | 9 | 11 |
| Protective Service | 22 | 13 |
| Non-Household, Non-Protective Service | 157 | 229 |
| Natural Resources | 105 | 45 |
| Precision Production - Craft | 184 | 227 |
| Machine Operators | 110 | 79 |
| Mover | 54 | 70 |
| Labor | 31 | 87 |
| 1980 | 1990 | ||
| Per Cent of Working Population Employed in Town of Residence | 20.64 | 22.70 | |
| 1970 | 1980 | 1990 | |
| Unemployment Rate | 4.04 | 4.30 | 2.68 |