Decatur County's estimated 2026 population is 2,684 with a growth rate of -0.59% in the past year according to the most recent United States census data. Decatur County is the 86th largest county in Kansas. The 2010 population was 2,957 and has seen a growth of -9.23% since that time.
Data after 2023 is projected based on recent change
The racial composition of Decatur County includes 92.68% White, and smaller percentages for Two or more races, other race, Black or African American, Native American, Asian and multiracial populations.
White (92.68%)
Two or more races (2.88%)
Other race (1.93%)
Black or African American (1.71%)
Native American (0.47%)
Asian (0.33%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,545 | 92.68% |
| Two or more races | 79 | 2.88% |
| Other race | 53 | 1.93% |
| Black or African American | 47 | 1.71% |
| Native American | 13 | 0.47% |
| Asian | 9 | 0.33% |
Married
Widowed
Divorced
Separated
Never Married
Decatur County's average per capita income is $33,894. Household income levels show a median of $52,030. The poverty rate stands at 12.96%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,375 | - |
| Families | $74,167 | $92,981 |
| Households | $52,030 | $71,773 |
| Non Families | $36,875 | $41,316 |
Average Income
Median Household Income
Poverty Rate
