US ZIP Code 91942 Age & Gender Statistics (2024)

Total Population

41,424

Median Age

37.7

Male Median

37.1

Female Median

38.1

US ZIP Code 91942 Population Growth

Population trends in
Figure 1: Annual population growth trend for (2021–2024).

US ZIP Code 91942 Demographic Trend

Since 2021, the population of has changed by +1.4%%.

+1.4%% Growth

US ZIP Code 91942 Age & Gender Pyramid

Population pyramid for

Figure 2: Population distribution by age and gender for 2024.


US ZIP Code 91942 Historical Population Data

YearMedian AgePopulation
202437.741,424
202337.540,920
202236.440,995
202136.040,863

US ZIP Code 91942 Age Group Breakdown (2024)

Age CohortPercentage
Under 56.5%
5–1714.4%
18–246.9%
25–3417.6%
35–5428.3%
55–6410.5%
65+15.8%

Dependency Ratios for US ZIP Code 91942

Total Dependency Ratio:
58.0
Youth Dependency:
33.0
Old-Age Dependency:
25.0

The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).



Age & Gender FAQs for US ZIP Code 91942

The median age in US ZIP Code 91942 is 37.7 years.

According to latest Census data, the total population of US ZIP Code 91942 is 41,424.

In US ZIP Code 91942, seniors (ages 65+) make up 15.8% of the population, while children under 18 represent 14.4%.

Based on historical data since 2021, the population in US ZIP Code 91942 is aging.
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