| | Piedmont, OK | Kingfisher, OK | United States |
| Population | 7,306 | 4,810 | 329,725,481 |
| Female Population | 50.5% | 51.8% | 50.5% |
| Male Population | 49.5% | 48.2% | 49.5% |
| Median Age | 36.1 | 36 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,785 | 4,624 | 309,327,143 |
| Population - 2000 | 3,650 | 4,380 | 285,036,114 |
| Population - 1990 | 2,522 | 4,095 | 251,960,433 |
| Pop. 2000 to Now | 146.1% | 11.7% | 15.6% |
| Pop. 1990 to Now | 256.1% | 19.4% | 30.8% |
| space4 | | | |
| Population Density | 167.6 | 1,186.2 | 93.4 |
| Land Area | 43.6 | 4.1 | 3,531,905.4 |
| Water Area | 0.4 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Piedmont, OK | Kingfisher, OK | United States |
| Age 0 to 4 | 9.5% | 6.1% | 5.9% |
| Age 5 to 9 | 7.7% | 11.9% | 6.1% |
| Age 10 to 14 | 6.6% | 7.1% | 6.6% |
| Age 15 to 17 | 5.2% | 3.8% | 3.9% |
| Age 18 to 20 | 2.3% | 3.7% | 4.0% |
| Age 21 to 24 | 1.2% | 4.9% | 5.2% |
| Age 25 to 34 | 13.9% | 12.2% | 13.8% |
| Age 35 to 44 | 14.6% | 13.6% | 12.9% |
| Age 45 to 54 | 10.5% | 11.7% | 12.6% |
| Age 55 to 59 | 7.0% | 3.7% | 6.7% |
| Age 60 to 64 | 6.6% | 5.1% | 6.3% |
| Age 65 to 74 | 8.5% | 7.4% | 9.6% |
| Age 75 to 84 | 4.3% | 5.3% | 4.5% |
| Age 85 and over | 2.1% | 3.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Piedmont, OK | Kingfisher, OK | United States |
| White | 75.2% | 66.7% | 59.4% |
| Black | 3.3% | 0.4% | 12.2% |
| Asian | 4.1% | 5.7% | 5.6% |
| Native American | 2.4% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.8% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 7.4% | 6.0% | 3.2% |
| Hispanic | 7.6% | 20.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Piedmont, OK | Kingfisher, OK | United States |
| Married Population | 76.8% | 58.6% | 49.8% |
| Currently Married | 75.1% | 54.7% | 48.0% |
| Married but Separated | 1.7% | 3.9% | 1.8% |
| Single Population | 23.2% | 41.4% | 50.2% |
| Never Married | 12.9% | 26.9% | 33.8% |
| Divorced | 6.5% | 7.1% | 10.8% |
| Widowed | 3.7% | 7.3% | 5.6% |
| space5 | | | |
| Household Size | 2.76 | 2.80 | 2.60 |
| Households | 2,645 | 1,667 | 124,010,992 |
| Family Households | 2,172 | 1,200 | 80,755,759 |
| Married couple, w/children | 40.9% | 38.4% | 30.5% |
| Married couple, no children | 50.3% | 45.8% | 42.9% |
| Non Family Households | 473 | 467 | 43,255,233 |
| Single householder, w/children | 5.6% | 11.8% | 15.8% |
| Single householder, no children | 3.1% | 4.0% | 10.8% |