US ZIP Code 91745 Age & Gender Statistics (2024)

Total Population

54,351

Median Age

44.4

Male Median

43.1

Female Median

45.7

US ZIP Code 91745 Population Growth

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

US ZIP Code 91745 Demographic Trend

Since 2021, the population of has changed by -0.9%%.

-0.9%% Growth

US ZIP Code 91745 Age & Gender Pyramid

Population pyramid for

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


US ZIP Code 91745 Historical Population Data

YearMedian AgePopulation
202444.454,351
202343.654,996
202243.455,489
202143.554,853

US ZIP Code 91745 Age Group Breakdown (2024)

Age CohortPercentage
Under 54.0%
5–1714.2%
18–247.1%
25–3412.4%
35–5426.7%
55–6414.3%
65+21.4%

Dependency Ratios for US ZIP Code 91745

Total Dependency Ratio:
65.3
Youth Dependency:
29.9
Old-Age Dependency:
35.3

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 91745

The median age in US ZIP Code 91745 is 44.4 years.

According to latest Census data, the total population of US ZIP Code 91745 is 54,351.

In US ZIP Code 91745, seniors (ages 65+) make up 21.4% of the population, while children under 18 represent 14.2%.

Based on historical data since 2021, the population in US ZIP Code 91745 has remained stable.
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