Demographics · CA
Lancaster, CA demographics: 169,169 residents, with a median age of 34.5 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
169,169people are estimated in Lancaster, at a median age of 34.5 years (American Community Survey 2020–2024 period estimate)
Median age 34.5 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 Lancaster, the largest race group is White (30.0%); 48.2% of residents are Hispanic or Latino (of any race); 15.4% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The estimated median age in Lancaster is 34.5 years (±0.8), compared with the U.S. estimate of 38.9 ± 0.1 years. These are descriptive comparisons, not significance tests. The population is 50.0% ± 0.9 percentage points male and 50.0% ± 0.9 percentage points female. The largest age band is 5 to 17 at 20.8%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 10,069 | 6.0% ± 0.7 percentage points | ±1,102 |
| 5 to 17 | 35,130 | 20.8% ± 1.0 percentage points | ±1,726 |
| 18 to 24 | 16,467 | 9.7% ± 0.7 percentage points | ±1,189 |
| 25 to 34 | 24,124 | 14.3% ± 0.9 percentage points | ±1,457 |
| 35 to 44 | 24,063 | 14.2% ± 0.7 percentage points | ±1,225 |
| 45 to 54 | 18,617 | 11.0% ± 0.7 percentage points | ±1,231 |
| 55 to 64 | 20,286 | 12.0% ± 0.7 percentage points | ±1,200 |
| 65 to 74 | 13,372 | 7.9% ± 0.6 percentage points | ±977 |
| 75 and over | 7,041 | 4.2% ± 0.4 percentage points | ±657 |
Median age by sex: 33.0 (male) · 36.0 (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 Lancaster is White at 30.0% of the population. Separately, 48.2% 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 | 50,753 | 30.0% ± 1.4 percentage points | ±2,414 |
| Black or African American alone | 32,995 | 19.5% ± 1.3 percentage points | ±2,229 |
| American Indian & Alaska Native alone | 2,611 | 1.5% ± 0.5 percentage points | ±792 |
| Asian alone | 7,140 | 4.2% ± 0.7 percentage points | ±1,127 |
| Native Hawaiian & Pacific Islander alone | 376 | 0.2% ± 0.1 percentage points | ±249 · low precision |
| Some other race alone | 33,509 | 19.8% ± 1.5 percentage points | ±2,471 |
| Two or more races | 41,785 | 24.7% ± 1.8 percentage points | ±3,126 |
| Hispanic or Latino (of any race) | 81,512 | 48.2% ± 1.8 percentage points | ±3,059 |
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
Lancaster has 52,374 households. 71.9% are family households and 22.8% are people living alone. The average household holds 3.13 people.
Total households
52,374
ACS 2020–2024 5-yr · B11001
Avg household size
3.13
ACS 2020–2024 5-yr · B25010 · ±0.07
Family households
71.9% ± 2.2 percentage points
Share of all households · B11001
Living alone
22.8% ± 2.2 percentage points
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 52,374 | ±1,164 |
| Family households | 37,667 | ±784 |
| Nonfamily households | 14,707 | ±1,265 |
| Householder living alone | 11,938 | ±1,194 |
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
15.4% of Lancaster residents were born outside the United States. 65.2% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (29.9%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 15.4% ± 1.0 percentage points | 26,118 people · B05002 |
| Speak only English at home (age 5+) | 65.2% ± 1.9 percentage points | C16001 |
| Top non-English language at home | 29.9% ± 1.8 percentage points | Spanish · 47,507 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
20.0% ± 1.3 percentage points of adults age 25 and over in Lancaster 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+) | 20.0% | 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 Lancaster is 0640130. 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/.