Waterloo, IL Population

The population of Waterloo is 10,906, according to the U.S. Census Bureau ACS estimates.
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Updated Jun 23, 2023
Overview
10,906
Total Population
40.4
Median age
51.19%
Female population %
95.3:100
Gender ratio (M:F)
35-39 years
Largest age group
68.9
Total dependency ratio
White
Largest racial group
165
Hispanic population

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

Age

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

  • The median age in Waterloo is 40.4, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
  • Waterloo's population under 18 was 22.14%, compared to the 22.51% nationwide.
  • Waterloo's elderly or the senior population (over 65 age) was 20.41% as compared to 16.04% nationwide.
  • Of the total population in Waterloo, 20.38% were under the age of 15, 15.18% aged 15 to 29, 44.03% aged 30 to 64, 16.68% aged 65 to 84, and 3.73% were 85 years of age and older.
The graph shows Waterloo's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis
Waterloo, IL population by age group. The largest age group was 35-39 years with a poulation of 864 (7.92% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about Waterloo, IL population by age ➔

Gender

There are 260 more females than males in Waterloo:

  • The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.19% females and 48.81% males in Waterloo, IL.
  • The Waterloo, IL gender ratio is 95.3:100 i.e. 95.3 men to 100 women (0.953).
  • For male population, the largest age group is 40-44 years with a population of 479.
  • For the female population, the largest age group is 10-14 years with a population of 511.
The grouped bar chart shows Waterloo, IL population by age and gender across 18 age groups, defined between the age of 0 and 85 and above. The female population is shown in pink color bar and male population is shown in blue color bar. Age group is plotted on x axis and population on y axis.
California population by gender and age. Largest age group (population): Male # 40-44 years (479) | Female # 10-14 years (511). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about Waterloo, IL population by gender ➔

Race / Ethnicity

Waterloo's population has become increasingly diverse:

  • Racial distribution of Waterloo population: 96.12% are White, 0.47% are Black or African American, 0.47% are American Indian and Alaska Native, 1.56% are Asian, 0.17% are some other race and 1.22% are multiracial.
  • Waterloo's racial breakdown clearly shows that there is an absolute majority of White population in the city.
  • By ethnicity, 165 is Hispanic or Latino (of any race), and 10,741 (98.49% of the total population) is Non-Hispanic.
  • The largest racial group in Waterloo is White with a population of 10,483 (96.12% of the total population).
The bar chart shows Waterloo, IL population by race, in percentage. The numbers shown are based on the American Community Survey respondents self identified race. The Hispanic and Latino population is spread across the races identified and not as a separate race category.
Waterloo, IL population by race. The largest racial group in Waterloo is White with a population of 10,483 (96.12% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about Waterloo, IL population by race ➔

Year by year

Waterloo's population has not reached its peak yet and is showing a trend of further growth:

  • The peak population was 11,130 in the year 2022
  • From 2000 to 2010, Waterloo's population increased by 1,821 (22.35%), as compared to the national growth of 9.63%.
  • From 2010 to 2020, Waterloo's population increased by 1,035 (10.38%), 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, Waterloo's population was lowest in year 2000 at 8,149.
The graph shows Waterloo's population from 2000 to 2022, with years on x-axis and population on y-axis
Waterloo's population from 2000 to 2022. The estimated population at the end of 2022 was 11,130. Source: U.S. Census Bureau (Population Estimates Program)

Read more about Waterloo, IL population by year ➔

References

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Waterloo, IL Demographics

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Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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