Lacon is a city located in Marshall County, Illinois. Lacon has a 2025 population of 1,829 . It is also the county seat of Marshall County . Lacon is currently declining at a rate of -0.49% annually and its population has decreased by -2.24% since the most recent census, which recorded a population of 1,871 in 2020.
The average household income in Lacon is $75,515 with a poverty rate of 14.32%. The median age in Lacon is 41.4 years: 39.3 years for males, and 44 years for females. For every 100 females there are 97.8 males.
Data after 2023 is projected based on recent change
The racial composition of Lacon includes 97.12% White, and smaller percentages for other race, Black or African American, Native Hawaiian or Pacific Islander, Two or more races, Native American, Asian and multiracial populations.
White (97.12%)
Other race (1.53%)
Black or African American (0.57%)
Native Hawaiian or Pacific Islander (0.34%)
Two or more races (0.34%)
Native American (0.06%)
Asian (0.06%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,717 | 97.12% |
| Other race | 27 | 1.53% |
| Black or African American | 10 | 0.57% |
| Native Hawaiian or Pacific Islander | 6 | 0.34% |
| Two or more races | 6 | 0.34% |
| Native American | 1 | 0.06% |
| Asian | 1 | 0.06% |
Married
Widowed
Divorced
Separated
Never Married
Lacon's average per capita income is $39,219. Household income levels show a median of $60,750. The poverty rate stands at 14.32%.
Name | Median | Mean |
|---|---|---|
| Married Families | $72,250 | - |
| Families | $68,790 | $88,704 |
| Households | $60,750 | $75,515 |
| Non Families | $26,691 | $52,232 |
Average Income
Median Household Income
Poverty Rate