| | Colusa, CA | Williams, CA | United States |
| Expend. per Student | $15,748 | $15,748 | $15,905 |
| Educ. Expend. per Student | $11,619 | $11,619 | $13,142 |
| Instr. Expend. per Student | $7,014 | $7,014 | $7,999 |
| Pupil/Teacher Ratio | 20.36 | 20.36 | 16.23 |
| Students per Librarian | 0 | 0 | 4573 |
| Students per Counselor | 489 | 489 | 530 |
| Grade School Educ. | 10.6% | 19.6% | 4.8% |
| Some High School Educ. | 8.8% | 14.4% | 6.3% |
| High School Educ. | 80.6% | 66.0% | 88.9% |
| Some College Educ. | 23.8% | 10.4% | 20.0% |
| 2 yr College Grad. | 10.0% | 8.4% | 8.7% |
| 4 yr College Grad. | 15.7% | 11.7% | 33.7% |
| Masters Grad. | 1.5% | 1.4% | 9.3% |
| Professional Degree | 1.4% | 0.1% | 2.2% |
| Doctorate Degree | 0.4% | 0.4% | 1.5% |