Niagara County - 2009 Population
Source: United States Census Bureau
| Total | Males | Females | ||||
|---|---|---|---|---|---|---|
| Age Group | Number | Percent | Number | Percent | Number | Percent |
| Total | 214,557 | 100.0 | 104,188 | 100.0 | 110,369 | 100.0 |
| <1 | 2,400 | 1.1 | 1,227 | 1.2 | 1,173 | 1.1 |
| 1 | 2,310 | 1.1 | 1,189 | 1.1 | 1,121 | 1.0 |
| 2 | 2,352 | 1.1 | 1,157 | 1.1 | 1,195 | 1.1 |
| 3 | 2,190 | 1.0 | 1,104 | 1.1 | 1,086 | 1.0 |
| 4 | 2,241 | 1.0 | 1,129 | 1.1 | 1,112 | 1.0 |
| 5-9 | 12,271 | 5.7 | 6,324 | 6.1 | 5,947 | 5.4 |
| 10-14 | 13,353 | 6.2 | 6,904 | 6.6 | 6,449 | 5.8 |
| 15-17 | 9,112 | 4.2 | 4,731 | 4.5 | 4,381 | 4.0 |
| 18-19 | 6,126 | 2.9 | 3,086 | 3.0 | 3,040 | 2.8 |
| 20-24 | 13,754 | 6.4 | 6,793 | 6.5 | 6,961 | 6.3 |
| 25-29 | 13,411 | 6.3 | 6,655 | 6.4 | 6,756 | 6.1 |
| 30-34 | 11,281 | 5.3 | 5,647 | 5.4 | 5,634 | 5.1 |
| 35-39 | 12,187 | 5.7 | 6,048 | 5.8 | 6,139 | 5.6 |
| 40-44 | 14,986 | 7.0 | 7,219 | 6.9 | 7,767 | 7.0 |
| 45-49 | 17,732 | 8.3 | 8,650 | 8.3 | 9,082 | 8.2 |
| 50-54 | 18,198 | 8.5 | 9,022 | 8.7 | 9,176 | 8.3 |
| 55-59 | 14,935 | 7.0 | 7,442 | 7.1 | 7,493 | 6.8 |
| 60-64 | 12,428 | 5.8 | 6,045 | 5.8 | 6,383 | 5.8 |
| 65-69 | 9,277 | 4.3 | 4,318 | 4.1 | 4,959 | 4.5 |
| 70-74 | 7,406 | 3.5 | 3,309 | 3.2 | 4,097 | 3.7 |
| 75-79 | 6,373 | 3.0 | 2,683 | 2.6 | 3,690 | 3.3 |
| 80-84 | 5,363 | 2.5 | 2,076 | 2.0 | 3,287 | 3.0 |
| 85+ | 4,871 | 2.3 | 1,430 | 1.4 | 3,441 | 3.1 |
