Overview
39,618
Total Population
46.5
Median age
50.39%
Female population %
98.4:100
Gender ratio (M:F)
60-64 years
Largest age group
61.7
Total dependency ratio
White
Largest racial group
63
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Waldo County's population is old compared to the rest of the country:
- The median age in Waldo County is 46.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Waldo County's population under 18 was 18.61%, compared to the 22.51% nationwide.
- Waldo County's elderly or the senior population (over 65 age) was 22.91% as compared to 16.04% nationwide.
- Of the total population in Waldo County, 15.24% were under the age of 15, 15.48% aged 15 to 29, 46.36% aged 30 to 64, 21.28% aged 65 to 84, and 1.63% were 85 years of age and older.

Read more about Waldo County, ME population by age ➔
Gender
There are 310 more females than males in Waldo County:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.39% females and 49.61% males in Waldo County, ME.
- The Waldo County, ME gender ratio is 98.4:100 i.e. 98.4 men to 100 women (0.984).
- For male population, the largest age group is 60-64 years with a population of 1,751.
- For the female population, the largest age group is 60-64 years with a population of 1,981.

Read more about Waldo County, ME population by gender ➔
Race / Ethnicity
Waldo County's population has become increasingly diverse:
- Racial distribution of Waldo County population: 95.52% are White, 0.45% are Black or African American, 0.42% are American Indian and Alaska Native, 0.41% are Asian, 0.88% are some other race and 2.32% are multiracial.
- Waldo County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
- By ethnicity, 63 is Hispanic or Latino (of any race), and 38,988 (98.41% of the total population) is Non-Hispanic.
- The largest racial group in Waldo County is White with a population of 37,842 (95.52% of the total population).

Read more about Waldo County, ME population by race ➔
Year by year
Waldo County's population has not reached its peak yet and is showing a trend of further growth:
- The peak population was 40,241 in the year 2022
- From 2000 to 2010, Waldo County's population increased by 2,382 (6.54%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Waldo County's population increased by 830 (2.14%), 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, Waldo County's population was lowest in year 2000 at 36,442.

Read more about Waldo County, ME population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)