Lacon is a city located in Marshall County Illinois. It is also the county seat of Marshall County. With a 2020 population of 1,866, it is the 511th largest city in Illinois and the 11324th largest city in the United States. Lacon is currently declining at a rate of -0.32% annually and its population has decreased by -0.64% since the most recent census, which recorded a population of 1,878 in 2020. Spanning over 2 miles, Lacon has a population density of 1,166 people per square mile.
The average household income in Lacon is $70,230 with a poverty rate of 12.72%. The median rental costs in recent years comes to $773 per month, and the median house value is $92,900. The median age in Lacon is 50.2 years, 44.4 years for males, and 54.2 years for females.
According to the most recent ACS, the racial composition of Laconwas:
Rate of Home Ownership
Average Family Size
Average Household Size
The highest rate of high school graduation is among white people with a rate of 94.26%.
The highest rate of bachelors degrees is among white people with a rate of 15.13%.
99.33% of Lacon residents speak only English, while 0.67% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.37% of the population.
Overall Poverty Rate
Male Poverty Rate
Female Poverty Rate
The race most likely to be in poverty in Lacon is White, with 12.05% below the poverty level.
The race least likely to be in poverty in Lacon is Hispanic, with 34.38% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 5.27%. Among those working part-time, it was 16.88%, and for those that did not work, the poverty rate was 12.22%.
Number of Veterans
Veteran Poverty Rate
Veteran Disability Rate
Labor Force Participation
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Born in Lacon
99.66% of Lacon residents were born in the United States, with 89.05% having been born in Illinois. 0.34% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.