| | Emporia, KS | Newton, KS | United States |
| Population | 24,220 | 18,576 | 329,725,481 |
| Female Population | 52.2% | 49.0% | 50.5% |
| Male Population | 47.8% | 51.0% | 49.5% |
| Median Age | 29 | 39 | 38.4 |
| space3 | | | |
| Population - 2010 | 24,910 | 19,142 | 309,327,143 |
| Population - 2000 | 26,760 | 17,190 | 285,036,114 |
| Population - 1990 | 25,512 | 16,700 | 251,960,433 |
| Pop. 2000 to Now | -8.4% | 9.0% | 15.6% |
| Pop. 1990 to Now | -4.0% | 12.2% | 30.8% |
| space4 | | | |
| Population Density | 2,021.5 | 1,296.1 | 93.4 |
| Land Area | 12.0 | 14.3 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Emporia, KS | Newton, KS | United States |
| Age 0 to 4 | 6.3% | 5.8% | 5.9% |
| Age 5 to 9 | 6.8% | 5.9% | 6.1% |
| Age 10 to 14 | 5.7% | 6.5% | 6.6% |
| Age 15 to 17 | 3.2% | 4.5% | 3.9% |
| Age 18 to 20 | 10.0% | 3.8% | 4.0% |
| Age 21 to 24 | 12.0% | 5.5% | 5.2% |
| Age 25 to 34 | 12.6% | 13.5% | 13.8% |
| Age 35 to 44 | 10.7% | 11.3% | 12.9% |
| Age 45 to 54 | 9.6% | 11.6% | 12.6% |
| Age 55 to 59 | 3.8% | 6.9% | 6.7% |
| Age 60 to 64 | 5.9% | 7.2% | 6.3% |
| Age 65 to 74 | 7.5% | 9.4% | 9.6% |
| Age 75 to 84 | 4.0% | 6.4% | 4.5% |
| Age 85 and over | 2.0% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Emporia, KS | Newton, KS | United States |
| White | 63.0% | 74.2% | 59.4% |
| Black | 2.4% | 2.6% | 12.2% |
| Asian | 2.0% | 0.3% | 5.6% |
| Native American | 0.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 4.6% | 4.0% | 3.2% |
| Hispanic | 27.7% | 18.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Emporia, KS | Newton, KS | United States |
| Married Population | 44.7% | 50.6% | 49.8% |
| Currently Married | 43.4% | 50.0% | 48.0% |
| Married but Separated | 1.3% | 0.6% | 1.8% |
| Single Population | 55.3% | 49.4% | 50.2% |
| Never Married | 41.9% | 27.8% | 33.8% |
| Divorced | 9.5% | 14.7% | 10.8% |
| Widowed | 3.9% | 6.9% | 5.6% |
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| Household Size | 2.32 | 2.48 | 2.60 |
| Households | 9,943 | 7,316 | 124,010,992 |
| Family Households | 5,262 | 4,970 | 80,755,759 |
| Married couple, w/children | 32.0% | 33.0% | 30.5% |
| Married couple, no children | 46.1% | 42.5% | 42.9% |
| Non Family Households | 4,681 | 2,346 | 43,255,233 |
| Single householder, w/children | 17.0% | 16.0% | 15.8% |
| Single householder, no children | 4.9% | 8.6% | 10.8% |