This was 7.8 percent lower than the state average of 38.1 percent. In 2020 the total municipality population reached 14,824.
78.1 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Kilgore for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 2,080 | 21.9 |
| Regular high school diploma | 1,980 | 20.9 |
| GED or alternative credential | 499 | 5.3 |
| Some college, less than 1 year | 600 | 6.3 |
| Some college, 1 or more years, no degree | 1,447 | 15.3 |
| Associate's degree | 969 | 10.2 |
| Bachelor's degree | 1,188 | 12.5 |
| Master's degree | 515 | 5.4 |
| Professional school degree | 105 | 1.1 |
| Doctorate degree | 96 | 1 |
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