| | Primghar, IA | Orange City, IA | United States |
| Population | 934 | 6,214 | 329,725,481 |
| Female Population | 47.3% | 53.3% | 50.5% |
| Male Population | 52.7% | 46.7% | 49.5% |
| Median Age | 39.4 | 34.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 909 | 6,066 | 309,327,143 |
| Population - 2000 | 891 | 5,582 | 285,036,114 |
| Population - 1990 | 950 | 4,940 | 251,960,433 |
| Pop. 2000 to Now | -3.7% | 12.2% | 15.6% |
| Pop. 1990 to Now | -9.7% | 26.7% | 30.8% |
| space4 | | | |
| Population Density | 675.3 | 1,472.2 | 93.4 |
| Land Area | 1.4 | 4.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Primghar, IA | Orange City, IA | United States |
| Age 0 to 4 | 7.3% | 5.6% | 5.9% |
| Age 5 to 9 | 11.0% | 7.2% | 6.1% |
| Age 10 to 14 | 4.0% | 5.7% | 6.6% |
| Age 15 to 17 | 6.5% | 2.5% | 3.9% |
| Age 18 to 20 | 1.6% | 9.8% | 4.0% |
| Age 21 to 24 | 5.7% | 10.1% | 5.2% |
| Age 25 to 34 | 8.5% | 9.2% | 13.8% |
| Age 35 to 44 | 11.5% | 13.1% | 12.9% |
| Age 45 to 54 | 10.1% | 8.3% | 12.6% |
| Age 55 to 59 | 10.6% | 3.8% | 6.7% |
| Age 60 to 64 | 6.0% | 6.4% | 6.3% |
| Age 65 to 74 | 7.9% | 11.1% | 9.6% |
| Age 75 to 84 | 5.1% | 5.4% | 4.5% |
| Age 85 and over | 4.3% | 1.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Primghar, IA | Orange City, IA | United States |
| White | 89.0% | 92.9% | 59.4% |
| Black | 5.1% | 0.9% | 12.2% |
| Asian | 2.0% | 0.1% | 5.6% |
| Native American | 0.4% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.6% | 2.8% | 3.2% |
| Hispanic | 2.8% | 3.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Primghar, IA | Orange City, IA | United States |
| Married Population | 53.2% | 56.1% | 49.8% |
| Currently Married | 50.7% | 56.1% | 48.0% |
| Married but Separated | 2.5% | 0.0% | 1.8% |
| Single Population | 46.8% | 43.9% | 50.2% |
| Never Married | 25.5% | 34.9% | 33.8% |
| Divorced | 13.9% | 5.9% | 10.8% |
| Widowed | 7.4% | 3.1% | 5.6% |
| space5 | | | |
| Household Size | 2.52 | 2.54 | 2.60 |
| Households | 353 | 2,143 | 124,010,992 |
| Family Households | 227 | 1,422 | 80,755,759 |
| Married couple, w/children | 30.4% | 38.5% | 30.5% |
| Married couple, no children | 45.4% | 57.7% | 42.9% |
| Non Family Households | 126 | 721 | 43,255,233 |
| Single householder, w/children | 21.1% | 2.7% | 15.8% |
| Single householder, no children | 3.1% | 1.2% | 10.8% |