Old Mill Creek Flag

Old Mill Creek

County:
Lake County
County Seat:
No
Area (mi²):
10.664
State:
Illinois

Old Mill Creek is a village located in Lake County, Illinois. Old Mill Creek has a 2026 population of 158. Old Mill Creek is currently declining at a rate of -0.63% annually and its population has decreased by -3.07% since the most recent census, which recorded a population of 163 in 2020.

The median household income in Old Mill Creek is $108,333 with a poverty rate of 4.9%. The median age in Old Mill Creek is 47.3 years: 42.7 years for males, and 49.8 years for females. For every 100 females there are 101.4 males.

158
Total Population
15
Density (mi²)
-1 -0.63%
Growth

Old Mill Creek Population

Old Mill Creek Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026158-1-0.63%
2025159-1-0.62%
2024160-2-1.23%
202316200%
202216200%
2021162-1-0.61%
202016300%
2019167-2-1.18%
2018169-2-1.17%
2017171-1-0.58%
201617200%
2015172-1-0.58%
201417300%
201317300%
201217300%
2011173-5-2.81%
201017300%

Median Age

Overall: 47.3 years
Female: 49.8 years
Male: 42.7 years

Old Mill Creek Adults

There are 113 adults, (44 of whom are seniors) in Old Mill Creek.

Sex Ratio

Female: 71 (49.7%)
Male: 72 (50.3%)

Demographics

The racial composition of Old Mill Creek includes 82.52% White, 9.79% other race, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White11882.52%
Other race149.79%
Two or more races106.99%
Native American10.7%
Race
Population ↓
Percentage (of total)
Other race149.79%
Two or more races10.7%
Race
Population ↓
Percentage (of total)
White11882.52%
Two or more races96.29%
Native American10.7%

Old Mill Creek Marital Status

Economics and Income Statistics

Old Mill Creek 's average per capita income is $53,542. Household income levels show a median of $108,333. The poverty rate stands at 4.9%.

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
Families$130,000$199,071
Married Families$125,000-
Households$108,333$147,483
Non Families$48,750$60,881

$53,542

Average Income

$108,333

Median Household Income

4.9%

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)