Merced County, California Age & Gender Statistics (2024)

Total Population

290,201

Median Age

31.8

Male Median

31.1

Female Median

32.5

Merced County, California Population Growth

Population trends in
Figure 1: Annual population growth trend for (2010–2024).

Merced County, California Demographic Trend

Since 2010, the population of has changed by +15.8%%.

+15.8%% Growth

Merced County, California Age & Gender Pyramid

Population pyramid for

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


Merced County, California Historical Population Data

YearMedian AgePopulation
202431.8290,201
202331.8285,597
202231.5282,290
202131.3279,150
202031.2273,661
201931.1271,382
201830.9269,075
201730.8267,390
201630.6265,001
201530.4263,885
201430.2261,609
201330.0258,707
201229.7256,398
201129.5253,606
201029.3250,699

Merced County, California Age Group Breakdown (2024)

Age CohortPercentage
Under 57.0%
5–1721.7%
18–2411.3%
25–3414.5%
35–5423.8%
55–6410.0%
65+11.7%

Dependency Ratios for Merced County, California

Total Dependency Ratio:
67.9
Youth Dependency:
48.2
Old-Age Dependency:
19.7

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



Age & Gender FAQs for Merced County, California

The median age in Merced County, California is 31.8 years.

According to latest Census data, the total population of Merced County, California is 290,201.

In Merced County, California, seniors (ages 65+) make up 11.7% of the population, while children under 18 represent 21.7%.

Based on historical data since 2010, the population in Merced County, California is aging.
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