Larimer County, Colorado Age & Gender Statistics (2024)

Total Population

367,368

Median Age

36.8

Male Median

36.1

Female Median

37.8

Larimer County, Colorado Population Growth

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

Larimer County, Colorado Demographic Trend

Since 2010, the population of has changed by +26.2%%.

+26.2%% Growth

Larimer County, Colorado Age & Gender Pyramid

Population pyramid for

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


Larimer County, Colorado Historical Population Data

YearMedian AgePopulation
202436.8367,368
202336.6363,561
202236.3359,363
202136.3354,670
202036.2350,523
201936.0344,786
201835.9338,161
201735.7330,976
201635.6325,228
201535.5318,227
201435.5311,435
201335.5305,798
201235.4300,870
201135.1296,107
201035.0291,162

Larimer County, Colorado Age Group Breakdown (2024)

Age CohortPercentage
Under 54.3%
5–1714.0%
18–2414.2%
25–3414.7%
35–5424.1%
55–6411.3%
65+17.4%

Dependency Ratios for Larimer County, Colorado

Total Dependency Ratio:
55.5
Youth Dependency:
28.5
Old-Age Dependency:
27.0

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



Age & Gender FAQs for Larimer County, Colorado

The median age in Larimer County, Colorado is 36.8 years.

According to latest Census data, the total population of Larimer County, Colorado is 367,368.

In Larimer County, Colorado, seniors (ages 65+) make up 17.4% of the population, while children under 18 represent 14.0%.

Based on historical data since 2010, the population in Larimer County, Colorado is aging.
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