Altamont Flag

Altamont

County Seat:
No
Area (mi²):
1.537
State:
Illinois

Altamont is a city located in Effingham County, Illinois. Altamont has a 2026 population of 2,190. Altamont is currently declining at a rate of -0.23% annually and its population has decreased by -1.31% since the most recent census, which recorded a population of 2,219 in 2020.

The median household income in Altamont is $75,510 with a poverty rate of 15.12%. The median age in Altamont is 38.9 years: 37.8 years for males, and 41.5 years for females. For every 100 females there are 90.8 males.

2.2K
Total Population
1,425
Density (mi²)
-5 -0.23%
Growth

Altamont Population

Altamont Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20262,190-5-0.23%
20252,195-5-0.23%
20242,20050.23%
20232,19550.23%
20222,190-9-0.41%
20212,199-20-0.9%
20202,219-1-0.05%
20192,363512.21%
20182,31210.04%
20172,31100%
20162,311-8-0.34%
20152,31970.3%
20142,312-10-0.43%
20132,322-5-0.21%
20122,327-2-0.09%
20112,329100.43%
20102,33710.04%

Median Age

Overall: 38.9 years
Female: 41.5 years
Male: 37.8 years

Altamont Adults

There are 1,698 adults, (495 of whom are seniors) in Altamont.

Sex Ratio

Female: 1,196 (52.4%)
Male: 1,086 (47.6%)

Demographics

The racial composition of Altamont includes 91.63% White, 4.34% Asian, and smaller percentages for Two or more races, Black or African American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White2,09191.63%
Asian994.34%
Two or more races612.67%
Black or African American180.79%
Other race130.57%
Race
Population ↓
Percentage (of total)
Other race80.35%
Race
Population ↓
Percentage (of total)
White2,09191.63%
Asian994.34%
Two or more races612.67%
Black or African American180.79%
Other race50.22%

Altamont Marital Status

Economics and Income Statistics

Altamont 's average per capita income is $43,066. Household income levels show a median of $75,510. The poverty rate stands at 15.12%.

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$97,708-
Families$78,750$82,539
Households$75,510$77,754
Non Families$46,023$62,047

$43,066

Average Income

$75,510

Median Household Income

15.12%

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)