| | Avoca, IA | Avoca, NY | United States |
| Population | 1,263 | 2,075 | 329,725,481 |
| Female Population | 52.8% | 43.9% | 50.5% |
| Male Population | 47.2% | 56.1% | 49.5% |
| Median Age | 44.7 | 37.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,509 | 2,262 | 309,327,143 |
| Population - 2000 | 1,610 | 2,314 | 285,036,114 |
| Population - 1990 | 1,497 | 2,269 | 251,960,433 |
| Pop. 2000 to Now | -4.5% | -8.3% | 15.6% |
| Pop. 1990 to Now | 2.7% | -6.5% | 30.8% |
| space4 | | | |
| Population Density | 530.2 | 57.2 | 93.4 |
| Land Area | 2.4 | 36.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Avoca, IA | Avoca, NY | United States |
| Age 0 to 4 | 7.8% | 7.4% | 5.9% |
| Age 5 to 9 | 4.8% | 6.1% | 6.1% |
| Age 10 to 14 | 4.4% | 6.8% | 6.6% |
| Age 15 to 17 | 4.0% | 1.4% | 3.9% |
| Age 18 to 20 | 4.4% | 2.5% | 4.0% |
| Age 21 to 24 | 3.3% | 7.7% | 5.2% |
| Age 25 to 34 | 9.9% | 15.7% | 13.8% |
| Age 35 to 44 | 11.6% | 7.8% | 12.9% |
| Age 45 to 54 | 11.1% | 13.2% | 12.6% |
| Age 55 to 59 | 5.9% | 8.0% | 6.7% |
| Age 60 to 64 | 5.5% | 5.7% | 6.3% |
| Age 65 to 74 | 15.6% | 10.1% | 9.6% |
| Age 75 to 84 | 8.7% | 4.6% | 4.5% |
| Age 85 and over | 3.0% | 3.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Avoca, IA | Avoca, NY | United States |
| White | 97.9% | 93.1% | 59.4% |
| Black | 0.0% | 1.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 1.2% | 0.4% |
| Two or More Races | 0.9% | 2.7% | 3.2% |
| Hispanic | 0.6% | 2.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Avoca, IA | Avoca, NY | United States |
| Married Population | 54.2% | 56.6% | 49.8% |
| Currently Married | 53.4% | 54.2% | 48.0% |
| Married but Separated | 0.9% | 2.4% | 1.8% |
| Single Population | 45.8% | 43.4% | 50.2% |
| Never Married | 24.0% | 26.1% | 33.8% |
| Divorced | 12.7% | 11.9% | 10.8% |
| Widowed | 9.1% | 5.4% | 5.6% |
| space5 | | | |
| Household Size | 2.05 | 2.64 | 2.60 |
| Households | 616 | 771 | 124,010,992 |
| Family Households | 361 | 555 | 80,755,759 |
| Married couple, w/children | 23.5% | 22.2% | 30.5% |
| Married couple, no children | 53.7% | 53.0% | 42.9% |
| Non Family Households | 255 | 216 | 43,255,233 |
| Single householder, w/children | 13.6% | 20.5% | 15.8% |
| Single householder, no children | 9.1% | 4.3% | 10.8% |