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 2026 population of 3,018. Knob Noster is currently growing at a rate of 1.45% annually and its population has increased by 9.35% since the most recent census, which recorded a population of 2,760 in 2020.

The median household income in Knob Noster is $62,353 with a poverty rate of 6.04%. The median age in Knob Noster is 32 years: 31.5 years for males, and 32.6 years for females. For every 100 females there are 99.2 males.

3K
Total Population
1,047
Density (mi²)
43 1.45%
Growth

Knob Noster Population

Knob Noster Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20263,018431.45%
20252,975431.47%
20242,932582.02%
20232,874602.13%
20222,814270.97%
20212,787270.98%
20202,76040.15%
20192,788371.34%
20182,751-10-0.36%
20172,761120.44%
20162,749-21-0.76%
20152,770-36-1.28%
20142,806140.5%
20132,79200%
20122,792401.45%
20112,752431.59%
20102,72760.22%

Median Age

Overall: 32 years
Female: 32.6 years
Male: 31.5 years

Knob Noster Adults

There are 2,284 adults, (309 of whom are seniors) in Knob Noster.

Sex Ratio

Female: 1,425 (50.2%)
Male: 1,413 (49.8%)

Demographics

The racial composition of Knob Noster includes 81.71% White, 8.67% Black or African American, and smaller percentages for Native Hawaiian or Pacific Islander, Asian, other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White2,31981.71%
Black or African American2468.67%
Two or more races1986.98%
Native Hawaiian or Pacific Islander401.41%
Asian210.74%
Other race90.32%
Native American50.18%
Race
Population ↓
Percentage (of total)
Two or more races190.67%
Other race90.32%
Race
Population ↓
Percentage (of total)
White2,31981.71%
Black or African American2468.67%
Two or more races1796.31%
Native Hawaiian or Pacific Islander401.41%
Asian210.74%
Native American50.18%

Knob Noster Marital Status

Economics and Income Statistics

Knob Noster 's average per capita income is $40,650. Household income levels show a median of $62,353. The poverty rate stands at 6.04%.

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$93,347-
Families$83,269$91,950
Households$62,353$73,016
Non Families$43,065$48,796

$40,650

Average Income

$62,353

Median Household Income

6.04%

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)