| Kirby - Occupational Data | FIPS Code=05030 |
| 1970 | |
| Employed Population | 109 |
| Professional - Technical - Kindred | 0 |
| Non-Farm Manager - Administrator | 0 |
| Sales Worker | 0 |
| Clerical Worker | 0 |
| Craftsperson - Foreperson | 7 |
| Non-Transport Operative | 28 |
| Transport Operative | 16 |
| Non-Farm Laborer | 26 |
| Farmer - Farm Manager | 10 |
| Farm Laborer | 16 |
| Non-Private Service | 6 |
| Household Service | 0 |
| Occupation Not Reported | 0 |
| 1980 | 1990 | |
| Employed Population | 110 | 164 |
| Executive - Administrator | 5 | 24 |
| Professional Speciality | 18 | 24 |
| Technicians - Related Support | 0 | 4 |
| Sales | 10 | 15 |
| Administrative - Clerical | 16 | 21 |
| Private Household Service | 5 | 1 |
| Protective Service | 0 | 0 |
| Non-Household, Non-Protective Service | 7 | 17 |
| Natural Resources | 16 | 17 |
| Precision Production - Craft | 11 | 15 |
| Machine Operators | 16 | 7 |
| Mover | 6 | 9 |
| Labor | 0 | 10 |
| 1980 | 1990 | ||
| Per Cent of Working Population Employed in Town of Residence | 17.27 | 19.50 | |
| 1970 | 1980 | 1990 | |
| Unemployment Rate | 0.00 | 8.33 | 8.89 |