Atlantic is a city located in Cass County, Iowa. Atlantic has a 2025 population of 6,700 . It is also the county seat of Cass County . Atlantic is currently declining at a rate of -0.25% annually and its population has decreased by -1.21% since the most recent census, which recorded a population of 6,782 in 2020.
The average household income in Atlantic is $77,563 with a poverty rate of 23.76%. The median age in Atlantic is 43 years: 40.5 years for males, and 45.6 years for females. For every 100 females there are 87.2 males.
Data after 2023 is projected based on recent change
The racial composition of Atlantic includes 96.16% White, and smaller percentages for Black or African American, Two or more races, Asian, other race, Native American and multiracial populations.
White (96.16%)
Black or African American (1.65%)
Two or more races (0.99%)
Asian (0.59%)
Other race (0.38%)
Native American (0.22%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 6,513 | 96.16% |
| Black or African American | 112 | 1.65% |
| Two or more races | 67 | 0.99% |
| Asian | 40 | 0.59% |
| Other race | 26 | 0.38% |
| Native American | 15 | 0.22% |
Married
Widowed
Divorced
Separated
Never Married
Atlantic's average per capita income is $41,398. Household income levels show a median of $57,486. The poverty rate stands at 23.76%.
Name | Median | Mean |
|---|---|---|
| Married Families | $105,500 | - |
| Families | $85,526 | $99,218 |
| Households | $57,486 | $77,563 |
| Non Families | $27,542 | $46,087 |
Average Income
Median Household Income
Poverty Rate