Demographics · CT
Waterbury, CT demographics: 114,869 residents, with a median age of 37.8 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
114,869people live in Waterbury, at a median age of 37.8 years (American Community Survey 2020–2024, a 5-year average)
Median age 37.8 years — younger than the U.S. median of 38.9.
ACS 2020–2024 5-year · ACS 5-Year Estimates 2020-2024 (released 2026-01-29)
In Waterbury, the largest race group is White (37.3%); 38.5% of residents are Hispanic or Latino (of any race); 20.1% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Waterbury is 37.8 years (±1.3), younger than the U.S. median of 38.9 years. The population is 47.7% male and 52.3% female. The largest age band is 5 to 17 at 16.9%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 7,249 | 6.3% | ±635 |
| 5 to 17 | 19,364 | 16.9% | ±1,219 |
| 18 to 24 | 10,409 | 9.1% | ±841 |
| 25 to 34 | 16,362 | 14.2% | ±961 |
| 35 to 44 | 15,314 | 13.3% | ±1,179 |
| 45 to 54 | 14,094 | 12.3% | ±924 |
| 55 to 64 | 14,484 | 12.6% | ±1,101 |
| 65 to 74 | 10,662 | 9.3% | ±808 |
| 75 and over | 6,931 | 6.0% | ±725 |
Median age by sex: 36.2 (male) · 39.2 (female).
Shares may not sum to 100% due to rounding. Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B01001 sex by age, B01002 median age) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B02001 / B03003
The largest race group in Waterbury is White at 37.3% of the population. Separately, 38.5% of residents are Hispanic or Latino of any race.Race and Hispanic origin are two different questions on the census form, so their shares are reported separately and are not additive.
| Race (alone, or two or more) | People | Share | ± margin |
|---|---|---|---|
| White alone | 42,814 | 37.3% | ±2,115 |
| Black or African American alone | 29,003 | 25.2% | ±1,858 |
| American Indian & Alaska Native alone | 353 | 0.3% | ±290 · low precision |
| Asian alone | 2,900 | 2.5% | ±889 |
| Native Hawaiian & Pacific Islander alone | 88 | 0.1% | ±101 · low precision |
| Some other race alone | 18,606 | 16.2% | ±2,112 |
| Two or more races | 21,105 | 18.4% | ±1,882 |
| Hispanic or Latino (of any race) | 44,278 | 38.5% | ±1,930 |
Race shares may not sum to 100% due to rounding; race and Hispanic origin are separate questions and are not additive. Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B02001 race, B03003 Hispanic or Latino origin) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B11001 / B25010
Waterbury has 45,663 households. 60.8% are family households and 34.2% are people living alone. The average household holds 2.48 people.
Total households
45,663
ACS 2020–2024 5-yr · B11001
Avg household size
2.48
ACS 2020–2024 5-yr · B25010 · ±0.05
Family households
60.8%
Share of all households · B11001
Living alone
34.2%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 45,663 | ±1,010 |
| Family households | 27,765 | ±1,006 |
| Nonfamily households | 17,898 | ±1,303 |
| Householder living alone | 15,598 | ±1,247 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B11001 household type, B25010 average household size) · place-grain · methodology →
ACS 2020–2024 · B05002 / C16001
20.1% of Waterbury residents were born outside the United States. 60.7% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (28.4%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 20.1% | 23,034 people · B05002 |
| Speak only English at home (age 5+) | 60.7% | C16001 |
| Top non-English language at home | 28.4% | Spanish · 30,603 speakers · C16001 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B05002 place of birth, C16001 language spoken at home) · place-grain · methodology →
ACS 2020–2024 · B15003
17.3% of adults age 25 and over in Waterbury hold a bachelor's degree or higher (the U.S. share is about 35%).
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 17.3% | B15003 lines 22–25 over line 1 · place-grain |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B15003 educational attainment, population 25+) · place-grain · methodology →
Sources · provenance
The GEOID for Waterbury is 0980000. Every figure on this page is a place-grain American Community Survey 5-Year 2020–2024 estimate (ACS 5-Year Estimates 2020-2024 (released 2026-01-29)) shown with its margin of error. Full per-dataset detail: /sources/.