| | East Grand Rapids, MI | Batavia, IL | United States |
| Population | 11,381 | 26,261 | 329,725,481 |
| Female Population | 50.0% | 50.7% | 50.5% |
| Male Population | 50.0% | 49.3% | 49.5% |
| Median Age | 37.7 | 38.5 | 38.4 |
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| Population - 2010 | 10,699 | 26,260 | 309,327,143 |
| Population - 2000 | 10,764 | 23,866 | 285,036,114 |
| Population - 1990 | 10,807 | 17,076 | 251,960,433 |
| Pop. 2000 to Now | 11.4% | 10.8% | 15.6% |
| Pop. 1990 to Now | 11.0% | 54.9% | 30.8% |
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| Population Density | 3,887.0 | 2,505.8 | 93.4 |
| Land Area | 2.9 | 10.5 | 3,531,905.4 |
| Water Area | 0.5 | 0.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | East Grand Rapids, MI | Batavia, IL | United States |
| Age 0 to 4 | 8.1% | 8.0% | 5.9% |
| Age 5 to 9 | 9.8% | 6.0% | 6.1% |
| Age 10 to 14 | 9.3% | 7.3% | 6.6% |
| Age 15 to 17 | 5.5% | 5.1% | 3.9% |
| Age 18 to 20 | 1.2% | 2.9% | 4.0% |
| Age 21 to 24 | 1.7% | 2.9% | 5.2% |
| Age 25 to 34 | 9.9% | 11.9% | 13.8% |
| Age 35 to 44 | 16.9% | 13.6% | 12.9% |
| Age 45 to 54 | 14.6% | 14.4% | 12.6% |
| Age 55 to 59 | 8.9% | 7.4% | 6.7% |
| Age 60 to 64 | 3.8% | 4.9% | 6.3% |
| Age 65 to 74 | 7.6% | 8.6% | 9.6% |
| Age 75 to 84 | 2.7% | 4.8% | 4.5% |
| Age 85 and over | 0.4% | 2.1% | 1.9% |
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| Race | | | |
| | East Grand Rapids, MI | Batavia, IL | United States |
| White | 93.1% | 83.0% | 59.4% |
| Black | 0.8% | 2.3% | 12.2% |
| Asian | 1.4% | 1.4% | 5.6% |
| Native American | 0.1% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.2% | 2.1% | 0.4% |
| Two or More Races | 2.4% | 2.3% | 3.2% |
| Hispanic | 2.0% | 8.8% | 18.4% |
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| Marriage & Family | | | |
| | East Grand Rapids, MI | Batavia, IL | United States |
| Married Population | 73.3% | 63.1% | 49.8% |
| Currently Married | 72.5% | 62.3% | 48.0% |
| Married but Separated | 0.8% | 0.9% | 1.8% |
| Single Population | 26.7% | 36.9% | 50.2% |
| Never Married | 18.0% | 23.4% | 33.8% |
| Divorced | 6.6% | 8.4% | 10.8% |
| Widowed | 2.1% | 5.1% | 5.6% |
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| Household Size | 2.90 | 2.66 | 2.60 |
| Households | 3,910 | 9,836 | 124,010,992 |
| Family Households | 3,294 | 6,887 | 80,755,759 |
| Married couple, w/children | 51.6% | 45.9% | 30.5% |
| Married couple, no children | 38.4% | 43.0% | 42.9% |
| Non Family Households | 616 | 2,949 | 43,255,233 |
| Single householder, w/children | 7.3% | 7.9% | 15.8% |
| Single householder, no children | 2.7% | 3.2% | 10.8% |