Olive Branch Flag

Olive Branch

County Seat:
No
Area (mi²):
9.447
State:
Illinois

Olive Branch is a CDP located in Alexander County, Illinois. Olive Branch has a 2026 population of 343. Olive Branch is currently declining at a rate of -8.78% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median age in Olive Branch is 56.2 years: 59.6 years for males, and 49.2 years for females. For every 100 females there are 65.8 males.

343
Total Population
36
Density (mi²)
-33 -8.78%
Growth

Olive Branch Population

Olive Branch Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026343-33-8.78%
2025376-32-7.84%

Median Age

Overall: 56.2 years
Female: 49.2 years
Male: 59.6 years

Olive Branch Adults

There are 429 adults, (117 of whom are seniors) in Olive Branch.

Sex Ratio

Female: 301 (60.3%)
Male: 198 (39.7%)

Demographics

The racial composition of Olive Branch includes 95.99% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White47995.99%
Two or more races204.01%
Race
Population ↓
Percentage (of total)
White47995.99%
Two or more races204.01%

Olive Branch Marital Status

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)