Columbia is located in Capitol Planning Region, Connecticut. Columbia has a 2025 population of 5,381. Columbia is currently growing at a rate of 0.41% annually and its population has increased by 2.18% since the most recent census, which recorded a population of 5,266 in 2020.
The average household income in Columbia is $136,474 with a poverty rate of 6.66%. The median age in Columbia is 49.6 years: 53.7 years for males, and 46.4 years for females.
Data after 2023 is projected based on recent change
The racial composition of Columbia includes 90.11% White, and smaller percentages for Black or African American, other race, Native American and multiracial populations.
White (90.1%)
Two or more races (5.4%)
Black or African American (2.2%)
Other race (2.1%)
Native American (0.3%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 4,747 | 90.11% |
| Two or more races | 283 | 5.37% |
| Black or African American | 114 | 2.16% |
| Other race | 111 | 2.11% |
| Native American | 13 | 0.25% |
Married
Widowed
Divorced
Separated
Never Married
Columbia's average per capita income is $68,674. Household income levels show a median of $122,500. The poverty rate stands at 6.66%.
Name | Median | Mean |
|---|---|---|
| Married Families | $143,721 | - |
| Families | $124,297 | $140,136 |
| Households | $122,500 | $136,474 |
| Non Families | $118,370 | $121,366 |
Average Income
Median Household Income
Poverty Rate