Brookline is located in Hillsborough County, New Hampshire. Brookline has a 2025 population of 5,850 . Brookline is currently growing at a rate of 0.6% annually and its population has increased by 3.61% since the most recent census, which recorded a population of 5,646 in 2020.
The average household income in Brookline is $184,090 with a poverty rate of 0.47%. The median age in Brookline is 41.2 years: 42.9 years for males, and 39.4 years for females. For every 100 females there are 101.7 males.
Data after 2023 is projected based on recent change
The racial composition of Brookline includes 93.4% White, and smaller percentages for Two or more races, Black or African American, other race, Asian and multiracial populations.
White (93.4%)
Two or more races (2.65%)
Black or African American (1.51%)
Other race (1.33%)
Asian (1.11%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 5,321 | 93.4% |
| Two or more races | 151 | 2.65% |
| Black or African American | 86 | 1.51% |
| Other race | 76 | 1.33% |
| Asian | 63 | 1.11% |
Married
Widowed
Divorced
Separated
Never Married
Brookline's average per capita income is $79,926. Household income levels show a median of $165,942. The poverty rate stands at 0.47%.
Name | Median | Mean |
|---|---|---|
| Married Families | $170,775 | - |
| Families | $168,750 | $196,683 |
| Households | $165,942 | $184,090 |
| Non Families | $100,721 | $121,620 |
Average Income
Median Household Income
Poverty Rate