Gillam is located in Jasper County, Indiana. Gillam has a 2025 population of 589 . Gillam is currently declining at a rate of 0% annually and its population has increased by 2.08% since the most recent census, which recorded a population of 577 in 2020.
The median age in Gillam is 40.1 years: 45.1 years for males, and 32.1 years for females. For every 100 females there are 89.1 males.
Data after 2023 is projected based on recent change
The racial composition of Gillam includes 58.85% White, 24.62% other race, and smaller percentages for and multiracial populations.
White (58.85%)
Other race (24.62%)
Two or more races (16.54%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 306 | 58.85% |
| Other race | 128 | 24.62% |
| Two or more races | 86 | 16.54% |
Married
Widowed
Divorced
Separated
Never Married