Washington County's estimated 2026 population is 141,670 with a growth rate of 0.72% in the past year according to the most recent United States census data. Washington County is the 12th largest county in Tennessee. The 2010 population was 123,393 and has seen a growth of 14.81% since that time.
Data after 2023 is projected based on recent change
The racial composition of Washington County includes 87.69% White, 3.75% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (87.69%)
Two or more races (5.38%)
Black or African American (3.75%)
Asian (1.6%)
Other race (1.35%)
Native American (0.21%)
Native Hawaiian or Pacific Islander (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 118,113 | 87.69% |
| Two or more races | 7,248 | 5.38% |
| Black or African American | 5,055 | 3.75% |
| Asian | 2,153 | 1.6% |
| Other race | 1,813 | 1.35% |
| Native American | 277 | 0.21% |
| Native Hawaiian or Pacific Islander | 34 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Washington County's average per capita income is $43,593. Household income levels show a median of $61,051. The poverty rate stands at 15.81%.
Name | Median | Mean |
|---|---|---|
| Married Families | $91,647 | $121,231 |
| Families | $82,020 | $108,940 |
| Households | $61,051 | $85,716 |
| Non Families | $33,295 | $45,441 |
Average Income
Median Household Income
Poverty Rate