Flagg Flag

Flagg

County:
Ogle County
County Seat:
No
Area (mi²):
35.552
State:
Illinois

Flagg is located in Ogle County, Illinois. Flagg has a 2025 population of 13,112. Flagg is currently declining at a rate of -0.21% annually and its population has decreased by -1.44% since the most recent census, which recorded a population of 13,303 in 2020.

The average household income in Flagg is $83,078 with a poverty rate of 9.03%. The median age in Flagg is 37.3 years: 36.5 years for males, and 39.8 years for females.

13.1K
Total Population
369
Density (mi²)
-28 -0.21%
Growth

Flagg Population

Flagg Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Flagg includes 76.14% White, 4.69% other race, and smaller percentages for Black or African American, Native American, Asian and multiracial populations.

Population by Race

White (76.1%)

Two or more races (14.4%)

Other race (4.7%)

Black or African American (2.9%)

Native American (1.2%)

Asian (0.6%)

Race
Population
Percentage (of total)
White10,08176.14%
Two or more races1,90914.42%
Other race6214.69%
Black or African American3892.94%
Native American1631.23%
Asian770.58%

Flagg Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Flagg's average per capita income is $43,511. Household income levels show a median of $70,924. The poverty rate stands at 9.03%.

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$94,940-
Families$85,196$97,870
Households$70,924$83,078
Non Families$38,138$52,319

$43,511

Average Income

$70,924

Median Household Income

9.03%

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)