| | Oulu, WI | Trondhjem, MN | United States |
| Population | 467 | 100 | 329,725,481 |
| Female Population | 48.8% | 60.0% | 50.5% |
| Male Population | 51.2% | 40.0% | 49.5% |
| Median Age | 53.4 | 37.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 526 | 187 | 309,327,143 |
| Population - 2000 | 540 | 171 | 285,036,114 |
| Population - 1990 | 513 | 168 | 251,960,433 |
| Pop. 2000 to Now | -0.2% | 8.8% | 15.6% |
| Pop. 1990 to Now | 5.1% | 10.7% | 30.8% |
| space4 | | | |
| Population Density | 13.2 | 2.9 | 93.4 |
| Land Area | 35.4 | 35.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.8 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Oulu, WI | Trondhjem, MN | United States |
| Age 0 to 4 | 2.4% | 6.0% | 5.9% |
| Age 5 to 9 | 5.6% | 13.0% | 6.1% |
| Age 10 to 14 | 2.1% | 10.0% | 6.6% |
| Age 15 to 17 | 3.6% | 0.0% | 3.9% |
| Age 18 to 20 | 2.8% | 0.0% | 4.0% |
| Age 21 to 24 | 2.6% | 0.0% | 5.2% |
| Age 25 to 34 | 10.7% | 4.0% | 13.8% |
| Age 35 to 44 | 9.0% | 32.0% | 12.9% |
| Age 45 to 54 | 13.9% | 6.0% | 12.6% |
| Age 55 to 59 | 15.6% | 3.0% | 6.7% |
| Age 60 to 64 | 10.1% | 4.0% | 6.3% |
| Age 65 to 74 | 17.8% | 16.0% | 9.6% |
| Age 75 to 84 | 3.4% | 4.0% | 4.5% |
| Age 85 and over | 0.4% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Oulu, WI | Trondhjem, MN | United States |
| White | 92.5% | 100.0% | 59.4% |
| Black | 1.1% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 2.6% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.3% | 0.0% | 3.2% |
| Hispanic | 2.6% | 0.0% | 18.4% |
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| Marriage & Family | | | |
| | Oulu, WI | Trondhjem, MN | United States |
| Married Population | 65.0% | 64.8% | 49.8% |
| Currently Married | 65.0% | 64.8% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 35.0% | 35.2% | 50.2% |
| Never Married | 16.2% | 18.3% | 33.8% |
| Divorced | 13.3% | 8.5% | 10.8% |
| Widowed | 5.5% | 8.5% | 5.6% |
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| Household Size | 2.11 | 2.86 | 2.60 |
| Households | 221 | 35 | 124,010,992 |
| Family Households | 159 | 21 | 80,755,759 |
| Married couple, w/children | 27.7% | 52.4% | 30.5% |
| Married couple, no children | 61.0% | 47.6% | 42.9% |
| Non Family Households | 62 | 14 | 43,255,233 |
| Single householder, w/children | 4.4% | 0.0% | 15.8% |
| Single householder, no children | 6.9% | 0.0% | 10.8% |