Louisa County, IA Population

Overview

10,891

Total Population

41.8

Median age

48.32%

Female population %

107:100

Gender ratio (M:F)

55-59 years

Largest age group

58.9

Total dependency ratio

White

Largest racial group

1,761

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Louisa County's population is old compared to the rest of the country:

The median age in Louisa County is 41.8, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Louisa County's population under 18 was 22.64%, compared to the 22.51% nationwide.
Louisa County's elderly or the senior population (over 65 age) was 18.74% as compared to 16.04% nationwide.
Of the total population in Louisa County, 18.35% were under the age of 15, 18.57% aged 15 to 29, 44.34% aged 30 to 64, 16.35% aged 65 to 84, and 2.39% were 85 years of age and older.

There are 367 less females than males in Louisa County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 48.32% females and 51.68% males in Louisa County, IA.
The Louisa County, IA gender ratio is 107:100 i.e. 107 men to 100 women (1.070).
For male population, the largest age group is 55-59 years with a population of 454.
For the female population, the largest age group is 55-59 years with a population of 395.

Louisa County's population has become increasingly diverse:

Racial distribution of Louisa County population: 84.43% are White, 0.72% are Black or African American, 0.48% are American Indian and Alaska Native, 3.54% are Asian, 7.62% are some other race and 3.22% are multiracial.
Louisa County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 1,761 is Hispanic or Latino (of any race), and 9,13 (83.83% of the total population) is Non-Hispanic.
The largest racial group in Louisa County is White with a population of 9,195 (84.43% of the total population).

Louisa County's population has already reached its peak and is showing a trend of decline:

The peak population was 12,203 in the year 2003
From 2000 to 2010, Louisa County's population decreased by 762 (6.27%), as compared to the national growth of 9.63%.
From 2010 to 2020, Louisa County's population decreased by 561 (4.93%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Louisa County's population was lowest in year 2022 at 10,677.