| PEOPLE | McHenry | Augusta-Richmond County | United States |
| Population | 26,992 | 195,844 | 308,035,306 |
| Pop. Density | 1,831 | 647 | 87 |
| Pop. Change | 24.46% | -2.24% | 8.07% |
| Median Age | 37.1 | 33.2 | 37.3 |
| Households | 10,075 | 75,208 | 116,716,292 |
| Household Size | 2.64 | 2.46 | 2.58 |
| Male Population | 48.47% | 48.40% | 49.27% |
| Female Population | 51.53% | 51.60% | 50.96% |
| Married Population | 50.25% | 34.33% | 47.02% |
| Single Population | 49.75% | 65.67% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.70% | 7.43% | 6.56% |
| Age 5 to 9 | 7.21% | 6.68% | 6.61% |
| Age 10 to 14 | 7.26% | 6.28% | 6.71% |
| Age 15 to 17 | 4.70% | 4.18% | 4.21% |
| Age 18 to 20 | 2.49% | 3.63% | 2.95% |
| Age 21 to 24 | 5.45% | 8.96% | 7.01% |
| Age 25 to 34 | 13.18% | 15.21% | 13.33% |
| Age 35 to 44 | 15.01% | 11.55% | 13.33% |
| Age 45 to 49 | 15.75% | 13.62% | 14.61% |
| Age 50 to 54 | 15.75% | 13.62% | 14.61% |
| Age 55 to 59 | 10.81% | 11.16% | 11.84% |
| Age 60 to 64 | 10.81% | 11.16% | 11.84% |
| Age 65 to 74 | 5.85% | 6.28% | 7.05% |
| Age 75 to 84 | 3.55% | 3.70% | 4.24% |
| Age 85 and over | 2.05% | 1.33% | 1.78% |
| RACE | | | |
| White | 90.29% | 39.10% | 72.41% |
| Black | 0.74% | 54.73% | 12.61% |
| Asian | 1.56% | 1.69% | 4.75% |
| American Indian | 0.35% | 0.34% | 0.95% |
| Other | 7.06% | 4.14% | 9.28% |
| Hispanic | 15.72% | 1.69% | 16.35% |
| Non-Hispanic | 84.28% | 98.31% | 83.65% |
| FAMILY | | | |
| Married, w/children | 37.63% | 20.68% | 30.42% |
| Married, no children | 41.18% | 35.19% | 42.46% |
| Single, w/children | 11.75% | 23.77% | 14.39% |
| Single, no children | 9.44% | 20.36% | 12.73% |
| Divorced | 10.19% | 14.08% | 10.62% |
| Separated | 2.84% | 6.28% | 4.97% |
| Widowed | 6.93% | 8.00% | 6.14% |
| Now Married | 50.78% | 34.43% | 46.32% |
| Never Married | 29.25% | 37.22% | 31.95% |
