Eliza is located in Mercer County, Illinois. Eliza has a 2025 population of 405. Eliza is currently declining at a rate of -0.25% annually and its population has decreased by -1.22% since the most recent census, which recorded a population of 410 in 2020.
The average household income in Eliza is $133,239 with a poverty rate of 0%.The median age in Eliza is 40.2 years: 42.9 years for males, and 17.6 years for females.
Data after 2023 is projected based on recent change
The racial composition of Eliza includes 95.62% White, and smaller percentages for and multiracial populations.
White (95.6%)
Two or more races (4.4%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 415 | 95.62% |
| Two or more races | 19 | 4.38% |
Married
Widowed
Divorced
Separated
Never Married
Eliza's average per capita income is $49,444. Household income levels show a median of $122,917. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Families | $138,438 | $162,499 |
| Married Families | $138,438 | $162,499 |
| Households | $122,917 | $133,239 |
| Non Families | $35,938 | $42,530 |
Average Income
Median Household Income
Poverty Rate