Marengo County's estimated 2026 population is 18,152 with a growth rate of -0.87% in the past year according to the most recent United States census data. Marengo County is the 48th largest county in Alabama. The 2010 population was 20,955 and has seen a growth of -13.38% since that time.
Data after 2023 is projected based on recent change
Overall: 41.4 years
Female: 44.1 years
Male: 39.4 years
There are 14,697 adults, (3,885 of whom are seniors) in Marengo County.
Female: 9,920 (52.6%)
Male: 8,931 (47.4%)
The racial composition of Marengo County includes 50.88% Black or African American, 44.49% White, and smaller percentages for other race, Native American, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| Black or African American | 9,592 | 50.88% |
| White | 8,386 | 44.49% |
| Two or more races | 596 | 3.16% |
| Other race | 174 | 0.92% |
| Native American | 54 | 0.29% |
| Asian | 49 | 0.26% |
Marengo County's average per capita income is $44,414. Household income levels show a median of $43,825. The poverty rate stands at 21.85%.
Name | Median | Mean |
|---|---|---|
| Married Families | $100,573 | - |
| Families | $79,569 | $98,328 |
| Households | $43,825 | $70,748 |
| Non Families | $19,111 | $34,728 |
Average Income
Median Household Income
Poverty Rate
