Martin County's estimated 2026 population is 19,227 with a growth rate of -0.86% in the past year according to the most recent United States census data. Martin County is the 49th largest county in Minnesota. The 2010 population was 20,805 and has seen a growth of -7.58% since that time.
Data after 2023 is projected based on recent change
The racial composition of Martin County includes 93.08% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
White (93.08%)
Two or more races (3.47%)
Other race (1.76%)
Black or African American (0.81%)
Asian (0.56%)
Native American (0.32%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 18,490 | 93.08% |
| Two or more races | 690 | 3.47% |
| Other race | 349 | 1.76% |
| Black or African American | 160 | 0.81% |
| Asian | 112 | 0.56% |
| Native American | 63 | 0.32% |
Married
Widowed
Divorced
Separated
Never Married
Martin County's average per capita income is $46,182. Household income levels show a median of $62,969. The poverty rate stands at 11.06%.
Name | Median | Mean |
|---|---|---|
| Married Families | $98,880 | - |
| Families | $84,877 | $105,744 |
| Households | $62,969 | $84,513 |
| Non Families | $36,829 | $48,633 |
Average Income
Median Household Income
Poverty Rate
