Knob Noster Flag

Knob Noster

County:
Johnson County
County Seat:
No
Area (mi²):
2.881
State:
Missouri

Knob Noster is a city located in Johnson County, Missouri. Knob Noster has a 2025 population of 2,962. Knob Noster is currently growing at a rate of 1.23% annually and its population has increased by 6.39% since the most recent census, which recorded a population of 2,784 in 2020.

The average household income in Knob Noster is $68,287 with a poverty rate of 11.25%. The median age in Knob Noster is 31 years: 30 years for males, and 33.1 years for females.

3K
Total Population
1,028
Density (mi²)
36 1.23%
Growth

Knob Noster Population

Knob Noster Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Knob Noster includes 76.52% White, 9.1% Black or African American, 4.53% Asian, and smaller percentages for Native Hawaiian or Pacific Islander, other race, Native American and multiracial populations.

Population by Race

White (76.5%)

Black or African American (9.1%)

Two or more races (7.4%)

Asian (4.5%)

Native Hawaiian or Pacific Islander (1.4%)

Other race (0.6%)

Native American (0.5%)

Race
Population
Percentage (of total)
White2,16176.52%
Black or African American2579.1%
Two or more races2087.37%
Asian1284.53%
Native Hawaiian or Pacific Islander391.38%
Other race170.6%
Native American140.5%

Knob Noster Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Knob Noster's average per capita income is $40,142. Household income levels show a median of $60,294. The poverty rate stands at 11.25%.

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$92,107-
Families$81,037$83,338
Households$60,294$68,287
Non Families$45,014$49,141

$40,142

Average Income

$60,294

Median Household Income

11.25%

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)