Union Flag

Union

County:
Butler County
County Seat:
No
Area (mi²):
62.329
State:
Kansas

Union is located in Butler County, Kansas. Union has a 2025 population of 140 . Union is currently declining at a rate of -2.1% annually and its population has decreased by -1.41% since the most recent census, which recorded a population of 142 in 2020.

The median age in Union is 23.9 years: 34.6 years for males, and 23.8 years for females. For every 100 females there are 70.1 males.

140
Total Population
2
Density (mi²)
-3 -2.1%
Growth

Union Population

Union Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Union includes 96.73% White, and smaller percentages for Two or more races, Black or African American, Native American and multiracial populations.

Population by Race

White (96.73%)

Two or more races (1.63%)

Black or African American (1.22%)

Native American (0.41%)

Race
Population
Percentage (of total)
White23796.73%
Two or more races41.63%
Black or African American31.22%
Native American10.41%

Union Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

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)