| | Beloit, KS | Piedmont, MO | United States |
| Population | 3,223 | 2,865 | 329,725,481 |
| Female Population | 47.0% | 54.2% | 50.5% |
| Male Population | 53.0% | 45.8% | 49.5% |
| Median Age | 39.6 | 37.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,818 | 1,989 | 309,327,143 |
| Population - 2000 | 4,019 | 1,992 | 285,036,114 |
| Population - 1990 | 4,066 | 2,166 | 251,960,433 |
| Pop. 2000 to Now | -11.3% | -5.7% | 15.6% |
| Pop. 1990 to Now | -12.4% | -13.3% | 30.8% |
| space4 | | | |
| Population Density | 822.8 | 1,341.3 | 93.4 |
| Land Area | 3.9 | 2.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Beloit, KS | Piedmont, MO | United States |
| Age 0 to 4 | 6.7% | 5.9% | 5.9% |
| Age 5 to 9 | 4.4% | 6.1% | 6.1% |
| Age 10 to 14 | 6.3% | 9.6% | 6.6% |
| Age 15 to 17 | 2.9% | 3.7% | 3.9% |
| Age 18 to 20 | 7.3% | 4.0% | 4.0% |
| Age 21 to 24 | 5.8% | 8.0% | 5.2% |
| Age 25 to 34 | 9.6% | 8.8% | 13.8% |
| Age 35 to 44 | 12.3% | 12.4% | 12.9% |
| Age 45 to 54 | 9.4% | 10.3% | 12.6% |
| Age 55 to 59 | 5.9% | 5.2% | 6.7% |
| Age 60 to 64 | 6.6% | 8.1% | 6.3% |
| Age 65 to 74 | 9.2% | 7.5% | 9.6% |
| Age 75 to 84 | 9.4% | 5.8% | 4.5% |
| Age 85 and over | 4.2% | 4.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Beloit, KS | Piedmont, MO | United States |
| White | 93.4% | 93.9% | 59.4% |
| Black | 0.8% | 1.4% | 12.2% |
| Asian | 0.0% | 0.7% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.7% | 3.5% | 3.2% |
| Hispanic | 3.9% | 0.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Beloit, KS | Piedmont, MO | United States |
| Married Population | 44.2% | 45.2% | 49.8% |
| Currently Married | 44.1% | 41.0% | 48.0% |
| Married but Separated | 0.1% | 4.2% | 1.8% |
| Single Population | 55.8% | 54.8% | 50.2% |
| Never Married | 34.5% | 26.6% | 33.8% |
| Divorced | 13.3% | 19.6% | 10.8% |
| Widowed | 7.9% | 8.6% | 5.6% |
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| Household Size | 2.20 | 3.10 | 2.60 |
| Households | 1,397 | 914 | 124,010,992 |
| Family Households | 805 | 499 | 80,755,759 |
| Married couple, w/children | 18.3% | 25.7% | 30.5% |
| Married couple, no children | 54.4% | 50.9% | 42.9% |
| Non Family Households | 592 | 415 | 43,255,233 |
| Single householder, w/children | 24.6% | 11.8% | 15.8% |
| Single householder, no children | 2.7% | 11.6% | 10.8% |