Duncan is located in Tioga County, Pennsylvania. Duncan has a 2025 population of 190 . Duncan is currently growing at a rate of 1.06% annually and its population has increased by 2.15% since the most recent census, which recorded a population of 186 in 2020.
The average household income in Duncan is $71,642 with a poverty rate of 13.44%. The median age in Duncan is 42.5 years: 47.5 years for males, and 36.2 years for females. For every 100 females there are 116.3 males.
Data after 2023 is projected based on recent change
The racial composition of Duncan includes 98.39% White, and smaller percentages for Two or more races and multiracial populations.
White (98.39%)
Two or more races (1.61%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 183 | 98.39% |
| Two or more races | 3 | 1.61% |
Married
Widowed
Divorced
Separated
Never Married
Duncan's average per capita income is $36,458. Household income levels show a median of $57,917. The poverty rate stands at 13.44%.
Name | Median | Mean |
|---|---|---|
| Married Families | $96,250 | - |
| Families | $71,250 | $88,582 |
| Households | $57,917 | $71,642 |
| Non Families | $31,964 | $47,262 |
Average Income
Median Household Income
Poverty Rate