Barnstable County's estimated 2026 population is 232,192 with a growth rate of -0.08% in the past year according to the most recent United States census data. Barnstable County is the 9th largest county in Massachusetts. The 2010 population was 215,909 and has seen a growth of 7.54% since that time.
Data after 2023 is projected based on recent change
The racial composition of Barnstable County includes 86.97% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
White (86.97%)
Two or more races (6.17%)
Black or African American (2.74%)
Other race (2.16%)
Asian (1.54%)
Native American (0.42%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 200,101 | 86.97% |
| Two or more races | 14,191 | 6.17% |
| Black or African American | 6,298 | 2.74% |
| Other race | 4,968 | 2.16% |
| Asian | 3,553 | 1.54% |
| Native American | 962 | 0.42% |
Married
Widowed
Divorced
Separated
Never Married
Barnstable County's average per capita income is $56,696. Household income levels show a median of $94,452. The poverty rate stands at 7.43%.
Name | Median | Mean |
|---|---|---|
| Married Families | $139,490 | $179,910 |
| Families | $124,037 | $163,560 |
| Households | $94,452 | $132,436 |
| Non Families | $54,503 | $77,712 |
Average Income
Median Household Income
Poverty Rate