| | Langlois, OR | Falls City, OR | United States |
| Population | 347 | 1,678 | 329,725,481 |
| Female Population | 47.3% | 46.1% | 50.5% |
| Male Population | 52.7% | 53.9% | 49.5% |
| Median Age | 64.8 | 33.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 145 | 955 | 309,327,143 |
| Population - 2000 | 165 | 966 | 285,036,114 |
| Population - 1990 | 179 | 818 | 251,960,433 |
| Pop. 2000 to Now | -52.1% | 10.8% | 15.6% |
| Pop. 1990 to Now | -55.9% | 30.8% | 30.8% |
| space4 | | | |
| Population Density | 243.3 | 1,396.0 | 93.4 |
| Land Area | 1.4 | 1.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Langlois, OR | Falls City, OR | United States |
| Age 0 to 4 | 4.0% | 5.4% | 5.9% |
| Age 5 to 9 | 0.0% | 4.5% | 6.1% |
| Age 10 to 14 | 9.2% | 10.3% | 6.6% |
| Age 15 to 17 | 0.0% | 3.6% | 3.9% |
| Age 18 to 20 | 0.0% | 3.0% | 4.0% |
| Age 21 to 24 | 0.0% | 6.0% | 5.2% |
| Age 25 to 34 | 0.0% | 19.4% | 13.8% |
| Age 35 to 44 | 6.9% | 10.4% | 12.9% |
| Age 45 to 54 | 19.6% | 10.1% | 12.6% |
| Age 55 to 59 | 0.0% | 6.3% | 6.7% |
| Age 60 to 64 | 11.5% | 8.5% | 6.3% |
| Age 65 to 74 | 42.4% | 9.3% | 9.6% |
| Age 75 to 84 | 0.0% | 2.3% | 4.5% |
| Age 85 and over | 6.3% | 1.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Langlois, OR | Falls City, OR | United States |
| White | 100.0% | 72.0% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 5.5% | 5.6% |
| Native American | 0.0% | 1.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 5.1% | 3.2% |
| Hispanic | 0.0% | 16.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Langlois, OR | Falls City, OR | United States |
| Married Population | 70.4% | 47.5% | 49.8% |
| Currently Married | 70.4% | 45.7% | 48.0% |
| Married but Separated | 0.0% | 1.7% | 1.8% |
| Single Population | 29.6% | 52.5% | 50.2% |
| Never Married | 8.0% | 29.7% | 33.8% |
| Divorced | 14.3% | 16.7% | 10.8% |
| Widowed | 7.3% | 6.1% | 5.6% |
| space5 | | | |
| Household Size | 1.91 | 2.98 | 2.60 |
| Households | 182 | 563 | 124,010,992 |
| Family Households | 130 | 399 | 80,755,759 |
| Married couple, w/children | 0.0% | 29.8% | 30.5% |
| Married couple, no children | 81.5% | 31.6% | 42.9% |
| Non Family Households | 52 | 164 | 43,255,233 |
| Single householder, w/children | 18.5% | 18.5% | 15.8% |
| Single householder, no children | 0.0% | 20.1% | 10.8% |