| | Pittsburg, TX | Sunbury, PA | United States |
| Population | 4,351 | 9,729 | 329,725,481 |
| Female Population | 53.9% | 53.5% | 50.5% |
| Male Population | 46.1% | 46.5% | 49.5% |
| Median Age | 33.4 | 39.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,522 | 9,885 | 309,327,143 |
| Population - 2000 | 4,347 | 10,610 | 285,036,114 |
| Population - 1990 | 4,007 | 11,591 | 251,960,433 |
| Pop. 2000 to Now | 7.7% | -12.1% | 15.6% |
| Pop. 1990 to Now | 16.8% | -19.6% | 30.8% |
| space4 | | | |
| Population Density | 1,209.6 | 4,809.2 | 93.4 |
| Land Area | 3.6 | 2.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Pittsburg, TX | Sunbury, PA | United States |
| Age 0 to 4 | 8.9% | 5.4% | 5.9% |
| Age 5 to 9 | 11.2% | 7.8% | 6.1% |
| Age 10 to 14 | 7.2% | 7.2% | 6.6% |
| Age 15 to 17 | 3.2% | 2.6% | 3.9% |
| Age 18 to 20 | 1.5% | 3.3% | 4.0% |
| Age 21 to 24 | 5.5% | 6.3% | 5.2% |
| Age 25 to 34 | 15.8% | 13.3% | 13.8% |
| Age 35 to 44 | 11.1% | 8.6% | 12.9% |
| Age 45 to 54 | 13.5% | 13.1% | 12.6% |
| Age 55 to 59 | 4.1% | 6.6% | 6.7% |
| Age 60 to 64 | 5.3% | 6.4% | 6.3% |
| Age 65 to 74 | 6.9% | 11.1% | 9.6% |
| Age 75 to 84 | 3.8% | 6.0% | 4.5% |
| Age 85 and over | 2.0% | 2.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Pittsburg, TX | Sunbury, PA | United States |
| White | 34.4% | 89.5% | 59.4% |
| Black | 27.5% | 1.6% | 12.2% |
| Asian | 1.4% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 4.1% | 3.4% | 3.2% |
| Hispanic | 32.2% | 5.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Pittsburg, TX | Sunbury, PA | United States |
| Married Population | 42.1% | 40.3% | 49.8% |
| Currently Married | 38.4% | 37.8% | 48.0% |
| Married but Separated | 3.8% | 2.5% | 1.8% |
| Single Population | 57.9% | 59.7% | 50.2% |
| Never Married | 35.0% | 38.0% | 33.8% |
| Divorced | 12.0% | 13.4% | 10.8% |
| Widowed | 10.8% | 8.2% | 5.6% |
| space5 | | | |
| Household Size | 2.62 | 2.31 | 2.60 |
| Households | 1,646 | 4,094 | 124,010,992 |
| Family Households | 925 | 2,365 | 80,755,759 |
| Married couple, w/children | 27.5% | 19.4% | 30.5% |
| Married couple, no children | 32.1% | 39.0% | 42.9% |
| Non Family Households | 721 | 1,729 | 43,255,233 |
| Single householder, w/children | 32.6% | 23.1% | 15.8% |
| Single householder, no children | 7.8% | 18.5% | 10.8% |