| | Casa Blanca, AZ | Ottosen, IA | United States |
| Population | 1,273 | 28 | 329,725,481 |
| Female Population | 45.8% | 46.4% | 50.5% |
| Male Population | 54.2% | 53.6% | 49.5% |
| Median Age | 28.7 | 56.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,300 | 55 | 309,327,143 |
| Population - 2000 | 881 | 61 | 285,036,114 |
| Population - 1990 | 580 | 72 | 251,960,433 |
| Pop. 2000 to Now | 59.8% | -41.0% | 15.6% |
| Pop. 1990 to Now | 142.8% | -50.0% | 30.8% |
| space4 | | | |
| Population Density | 80.6 | 49.4 | 93.4 |
| Land Area | 15.8 | 0.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Casa Blanca, AZ | Ottosen, IA | United States |
| Age 0 to 4 | 5.7% | 7.1% | 5.9% |
| Age 5 to 9 | 8.9% | 3.6% | 6.1% |
| Age 10 to 14 | 5.0% | 10.7% | 6.6% |
| Age 15 to 17 | 1.3% | 0.0% | 3.9% |
| Age 18 to 20 | 6.7% | 0.0% | 4.0% |
| Age 21 to 24 | 17.5% | 0.0% | 5.2% |
| Age 25 to 34 | 13.7% | 0.0% | 13.8% |
| Age 35 to 44 | 7.5% | 7.1% | 12.9% |
| Age 45 to 54 | 16.6% | 10.7% | 12.6% |
| Age 55 to 59 | 5.2% | 17.9% | 6.7% |
| Age 60 to 64 | 2.3% | 14.3% | 6.3% |
| Age 65 to 74 | 4.9% | 7.1% | 9.6% |
| Age 75 to 84 | 3.8% | 14.3% | 4.5% |
| Age 85 and over | 0.8% | 7.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Casa Blanca, AZ | Ottosen, IA | United States |
| White | 2.0% | 92.9% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 93.9% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.9% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 0.0% | 3.2% |
| Hispanic | 3.2% | 7.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Casa Blanca, AZ | Ottosen, IA | United States |
| Married Population | 14.5% | 68.2% | 49.8% |
| Currently Married | 13.0% | 68.2% | 48.0% |
| Married but Separated | 1.5% | 0.0% | 1.8% |
| Single Population | 85.5% | 31.8% | 50.2% |
| Never Married | 61.6% | 9.1% | 33.8% |
| Divorced | 11.9% | 0.0% | 10.8% |
| Widowed | 12.0% | 22.7% | 5.6% |
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| Household Size | 2.91 | 2.33 | 2.60 |
| Households | 437 | 12 | 124,010,992 |
| Family Households | 219 | 10 | 80,755,759 |
| Married couple, w/children | 16.0% | 30.0% | 30.5% |
| Married couple, no children | 5.5% | 50.0% | 42.9% |
| Non Family Households | 218 | 2 | 43,255,233 |
| Single householder, w/children | 50.2% | 10.0% | 15.8% |
| Single householder, no children | 28.3% | 10.0% | 10.8% |