Jefferson County - 2009 Population
Source: United States Census Bureau
| Total | Males | Females | ||||
|---|---|---|---|---|---|---|
| Age Group | Number | Percent | Number | Percent | Number | Percent |
| Total | 118,719 | 100.0 | 60,573 | 100.0 | 58,146 | 100.0 |
| <1 | 1,869 | 1.6 | 955 | 1.6 | 914 | 1.6 |
| 1 | 1,860 | 1.6 | 954 | 1.6 | 906 | 1.6 |
| 2 | 1,727 | 1.5 | 876 | 1.4 | 851 | 1.5 |
| 3 | 1,616 | 1.4 | 873 | 1.4 | 743 | 1.3 |
| 4 | 1,513 | 1.3 | 779 | 1.3 | 734 | 1.3 |
| 5-9 | 7,738 | 6.5 | 3,890 | 6.4 | 3,848 | 6.6 |
| 10-14 | 7,614 | 6.4 | 3,810 | 6.3 | 3,804 | 6.5 |
| 15-17 | 4,875 | 4.1 | 2,546 | 4.2 | 2,329 | 4.0 |
| 18-19 | 3,819 | 3.2 | 2,222 | 3.7 | 1,597 | 2.7 |
| 20-24 | 13,779 | 11.6 | 8,123 | 13.4 | 5,656 | 9.7 |
| 25-29 | 9,746 | 8.2 | 4,782 | 7.9 | 4,964 | 8.5 |
| 30-34 | 4,969 | 4.2 | 2,590 | 4.3 | 2,379 | 4.1 |
| 35-39 | 6,765 | 5.7 | 3,710 | 6.1 | 3,055 | 5.3 |
| 40-44 | 7,790 | 6.6 | 4,047 | 6.7 | 3,743 | 6.4 |
| 45-49 | 8,247 | 6.9 | 4,154 | 6.9 | 4,093 | 7.0 |
| 50-54 | 8,005 | 6.7 | 3,909 | 6.5 | 4,096 | 7.0 |
| 55-59 | 6,921 | 5.8 | 3,493 | 5.8 | 3,428 | 5.9 |
| 60-64 | 5,920 | 5.0 | 2,928 | 4.8 | 2,992 | 5.1 |
| 65-69 | 4,299 | 3.6 | 2,058 | 3.4 | 2,241 | 3.9 |
| 70-74 | 3,123 | 2.6 | 1,440 | 2.4 | 1,683 | 2.9 |
| 75-79 | 2,513 | 2.1 | 1,069 | 1.8 | 1,444 | 2.5 |
| 80-84 | 2,027 | 1.7 | 763 | 1.3 | 1,264 | 2.2 |
| 85+ | 1,984 | 1.7 | 602 | 1.0 | 1,382 | 2.4 |
