| | Lake Orion, MI | Grand Blanc, MI | United States |
| Population | 2,920 | 8,055 | 329,725,481 |
| Female Population | 55.2% | 51.2% | 50.5% |
| Male Population | 44.8% | 48.8% | 49.5% |
| Median Age | 42.6 | 45.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,040 | 8,229 | 309,327,143 |
| Population - 2000 | 2,715 | 8,242 | 285,036,114 |
| Population - 1990 | 3,057 | 7,760 | 251,960,433 |
| Pop. 2000 to Now | 17.5% | -5.0% | 15.6% |
| Pop. 1990 to Now | 4.4% | 0.9% | 30.8% |
| space4 | | | |
| Population Density | 3,618.3 | 2,231.9 | 93.4 |
| Land Area | 0.8 | 3.6 | 3,531,905.4 |
| Water Area | 0.5 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lake Orion, MI | Grand Blanc, MI | United States |
| Age 0 to 4 | 6.9% | 4.3% | 5.9% |
| Age 5 to 9 | 4.8% | 4.1% | 6.1% |
| Age 10 to 14 | 4.5% | 5.8% | 6.6% |
| Age 15 to 17 | 3.6% | 7.1% | 3.9% |
| Age 18 to 20 | 2.2% | 5.3% | 4.0% |
| Age 21 to 24 | 3.8% | 5.4% | 5.2% |
| Age 25 to 34 | 15.9% | 11.1% | 13.8% |
| Age 35 to 44 | 12.0% | 6.5% | 12.9% |
| Age 45 to 54 | 12.9% | 15.9% | 12.6% |
| Age 55 to 59 | 8.0% | 6.9% | 6.7% |
| Age 60 to 64 | 8.1% | 9.2% | 6.3% |
| Age 65 to 74 | 8.3% | 8.5% | 9.6% |
| Age 75 to 84 | 4.0% | 5.0% | 4.5% |
| Age 85 and over | 5.3% | 4.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lake Orion, MI | Grand Blanc, MI | United States |
| White | 92.7% | 81.3% | 59.4% |
| Black | 0.4% | 13.1% | 12.2% |
| Asian | 2.8% | 1.1% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 1.0% | 3.2% |
| Hispanic | 4.1% | 3.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lake Orion, MI | Grand Blanc, MI | United States |
| Married Population | 53.6% | 43.2% | 49.8% |
| Currently Married | 53.2% | 41.7% | 48.0% |
| Married but Separated | 0.4% | 1.5% | 1.8% |
| Single Population | 46.4% | 56.8% | 50.2% |
| Never Married | 26.0% | 32.7% | 33.8% |
| Divorced | 12.3% | 13.1% | 10.8% |
| Widowed | 8.2% | 10.9% | 5.6% |
| space5 | | | |
| Household Size | 2.31 | 2.19 | 2.60 |
| Households | 1,218 | 3,623 | 124,010,992 |
| Family Households | 698 | 2,026 | 80,755,759 |
| Married couple, w/children | 42.4% | 27.6% | 30.5% |
| Married couple, no children | 44.8% | 42.8% | 42.9% |
| Non Family Households | 520 | 1,597 | 43,255,233 |
| Single householder, w/children | 12.8% | 21.6% | 15.8% |
| Single householder, no children | 0.0% | 7.9% | 10.8% |