| | Salina, OK | Altoona, IA | United States |
| Population | 1,255 | 19,345 | 329,725,481 |
| Female Population | 53.1% | 51.8% | 50.5% |
| Male Population | 46.9% | 48.2% | 49.5% |
| Median Age | 32.2 | 36.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,400 | 14,703 | 309,327,143 |
| Population - 2000 | 1,422 | 10,345 | 285,036,114 |
| Population - 1990 | 1,153 | 7,191 | 251,960,433 |
| Pop. 2000 to Now | -1.8% | 88.5% | 15.6% |
| Pop. 1990 to Now | 21.1% | 171.2% | 30.8% |
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| Population Density | 1,271.5 | 1,788.2 | 93.4 |
| Land Area | 1.0 | 10.8 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Salina, OK | Altoona, IA | United States |
| Age 0 to 4 | 10.0% | 6.2% | 5.9% |
| Age 5 to 9 | 6.5% | 8.9% | 6.1% |
| Age 10 to 14 | 6.9% | 7.4% | 6.6% |
| Age 15 to 17 | 4.9% | 4.5% | 3.9% |
| Age 18 to 20 | 4.2% | 2.6% | 4.0% |
| Age 21 to 24 | 5.5% | 4.5% | 5.2% |
| Age 25 to 34 | 14.0% | 14.3% | 13.8% |
| Age 35 to 44 | 11.2% | 16.1% | 12.9% |
| Age 45 to 54 | 8.9% | 11.6% | 12.6% |
| Age 55 to 59 | 7.0% | 5.5% | 6.7% |
| Age 60 to 64 | 5.4% | 5.4% | 6.3% |
| Age 65 to 74 | 10.0% | 7.4% | 9.6% |
| Age 75 to 84 | 3.1% | 4.0% | 4.5% |
| Age 85 and over | 2.2% | 1.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Salina, OK | Altoona, IA | United States |
| White | 43.3% | 88.5% | 59.4% |
| Black | 0.4% | 3.2% | 12.2% |
| Asian | 0.1% | 0.6% | 5.6% |
| Native American | 33.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 1.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 19.5% | 1.9% | 3.2% |
| Hispanic | 3.7% | 4.7% | 18.4% |
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| Marriage & Family | | | |
| | Salina, OK | Altoona, IA | United States |
| Married Population | 45.8% | 53.9% | 49.8% |
| Currently Married | 40.3% | 53.4% | 48.0% |
| Married but Separated | 5.5% | 0.5% | 1.8% |
| Single Population | 54.2% | 46.1% | 50.2% |
| Never Married | 29.3% | 28.5% | 33.8% |
| Divorced | 14.5% | 14.1% | 10.8% |
| Widowed | 10.4% | 3.5% | 5.6% |
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| Household Size | 2.69 | 2.69 | 2.60 |
| Households | 445 | 7,159 | 124,010,992 |
| Family Households | 297 | 5,017 | 80,755,759 |
| Married couple, w/children | 24.9% | 35.1% | 30.5% |
| Married couple, no children | 32.7% | 41.0% | 42.9% |
| Non Family Households | 148 | 2,142 | 43,255,233 |
| Single householder, w/children | 34.3% | 17.5% | 15.8% |
| Single householder, no children | 8.1% | 6.3% | 10.8% |