Loudon Flag

Loudon

County:
Fayette County
County Seat:
No
Area (mi²):
59.798
State:
Illinois

Loudon is located in Fayette County, Illinois. Loudon has a 2025 population of 857 . Loudon is currently declining at a rate of -0.23% annually and its population has decreased by -1.72% since the most recent census, which recorded a population of 872 in 2020.

The average household income in Loudon is $89,994 with a poverty rate of 13.35%. The median age in Loudon is 37.1 years: 36 years for males, and 40.3 years for females. For every 100 females there are 99.8 males.

857
Total Population
14
Density (mi²)
-2 -0.23%
Growth

Loudon Population

Loudon Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Loudon includes 96.2% White, and smaller percentages for and multiracial populations.

Population by Race

White (96.2%)

Two or more races (3.8%)

Race
Population
Percentage (of total)
White83696.2%
Two or more races333.8%

Loudon Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Loudon's average per capita income is $48,625. Household income levels show a median of $55,089. The poverty rate stands at 13.35%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$78,438-
Families$61,250$104,634
Households$55,089$89,994
Non Families$23,975$40,022

$48,625

Average Income

$55,089

Median Household Income

13.35%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)