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ZIP 91921
People & Community

ZIP 91921 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

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Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 91921

91921 has a population of 6,647 with a median age of 36.7 yrs (52.8% male).

Race & Ethnicity

White

36.1%-41% vs US avg

Black

2.0%-84% vs US avg

Asian

11.3%+91% vs US avg

Hispanic

63.9%+242% vs US avg

Age Groups

0–17

25.7%+17% vs US avg

18–64

64.2%+4% vs US avg

65+

10.1%-38% vs US avg

Education

Less than HS

5.4%-51% vs US avg

High school

27.0%+3% vs US avg

Some college

32.8%+13% vs US avg

Bachelor's+

34.8%+3% vs US avg

Marital Status

Married

54.8%+14% vs US avg

Never married

34.4%+2% vs US avg

Divorced

6.5%-36% vs US avg

Widowed / Separated

4.2%

Diversity Index

45/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate

3.0%-74% vs US avg

Foreign Born

12.0%-14% vs US avg

Veterans

6.0%-1% vs US avg

Disability

6.8%-49% vs US avg

Single Parent

4.2%-48% vs US avg

Recent Births

23.7%+308% vs US avg

Top ancestry

EnglishGermanIrish

Health & Community Indicators in 91921

Poverty Rate

3.0%-74% vs US avg

Veterans

6.0%-1% vs US avg

Foreign Born

12.0%-14% vs US avg

Single Parent

4.2%-48% vs US avg

Disability

6.8%-49% vs US avg

Uninsured

5.3%-34% vs US avg

SNAP Benefits

2.0%-83% vs US avg

Private School

0.0%