Demographics · CA
Norwalk, CA demographics: 99,789 residents, with a median age of 37.3 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
99,789people are estimated in Norwalk, at a median age of 37.3 years (American Community Survey 2020–2024 period estimate)
Median age 37.3 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 Norwalk, the largest race group is Some other race (39.6%); 70.4% of residents are Hispanic or Latino (of any race); 33.2% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The estimated median age in Norwalk is 37.3 years (±0.9), compared with the U.S. estimate of 38.9 ± 0.1 years. These are descriptive comparisons, not significance tests. The population is 50.1% ± 1.0 percentage points male and 49.9% ± 1.0 percentage points female. The largest age band is 25 to 34 at 15.9%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 6,089 | 6.1% ± 0.7 percentage points | ±675 |
| 5 to 17 | 15,605 | 15.6% ± 0.9 percentage points | ±929 |
| 18 to 24 | 8,863 | 8.9% ± 0.8 percentage points | ±780 |
| 25 to 34 | 15,845 | 15.9% ± 1.0 percentage points | ±949 |
| 35 to 44 | 13,558 | 13.6% ± 0.8 percentage points | ±780 |
| 45 to 54 | 13,357 | 13.4% ± 0.9 percentage points | ±878 |
| 55 to 64 | 12,088 | 12.1% ± 0.8 percentage points | ±755 |
| 65 to 74 | 8,418 | 8.4% ± 0.7 percentage points | ±698 |
| 75 and over | 5,966 | 6.0% ± 0.6 percentage points | ±609 |
Median age by sex: 35.9 (male) · 39.0 (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 Norwalk is Some other race at 39.6% of the population. Separately, 70.4% 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 | 19,563 | 19.6% ± 2.1 percentage points | ±2,132 |
| Black or African American alone | 3,917 | 3.9% ± 0.8 percentage points | ±792 |
| American Indian & Alaska Native alone | 2,270 | 2.3% ± 0.7 percentage points | ±651 |
| Asian alone | 13,398 | 13.4% ± 1.3 percentage points | ±1,315 |
| Native Hawaiian & Pacific Islander alone | 221 | 0.2% ± 0.2 percentage points | ±163 · low precision |
| Some other race alone | 39,470 | 39.6% ± 2.5 percentage points | ±2,470 |
| Two or more races | 20,950 | 21.0% ± 2.0 percentage points | ±1,999 |
| Hispanic or Latino (of any race) | 70,256 | 70.4% ± 1.8 percentage points | ±1,760 |
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
Norwalk has 27,216 households. 80.1% are family households and 15.1% are people living alone. The average household holds 3.60 people.
Total households
27,216
ACS 2020–2024 5-yr · B11001
Avg household size
3.60
ACS 2020–2024 5-yr · B25010 · ±0.09
Family households
80.1% ± 1.0 percentage points
Share of all households · B11001
Living alone
15.1% ± 1.8 percentage points
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 27,216 | ±703 |
| Family households | 21,799 | ±629 |
| Nonfamily households | 5,417 | ±559 |
| Householder living alone | 4,109 | ±500 |
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
33.2% of Norwalk residents were born outside the United States. 36.6% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (52.0%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 33.2% ± 1.4 percentage points | 33,085 people · B05002 |
| Speak only English at home (age 5+) | 36.6% ± 1.8 percentage points | C16001 |
| Top non-English language at home | 52.0% ± 1.8 percentage points | Spanish · 48,712 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
21.3% ± 1.5 percentage points of adults age 25 and over in Norwalk hold a bachelor's degree or higher. The U.S. estimate is 35.7%.
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 21.3% | 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 Norwalk is 0652526. 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/.