Waldo County is a county of 40,192 people in Maine. At a median age of 47.4, this is an older place than the country as a whole. Few US counties rank higher on income. Owners hold 82% of the housing stock. 2% of people here were born outside the United States. Density works out to 55 people per square mile.
At a glance
Lower income
median household income $72,782, below the US median
US median: $82,259
Older
median age 47.4
US median: 38.9
Average education
34% hold a bachelor's degree
US average: 36%
Less affordable
home values up 65%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Waldo County
What changed most since 1990
White share98.9% → 92.8%(−6.1 pts)US over the same years: −17.8 pts
Median age34.7 → 47.4(+12.7 years)US over the same years: +6.0 years
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)17.2%(430)
US avg: 26.4%
Gulf War (1990s)21.8%(546)
US avg: 24.3%
Vietnam era43.4%(1,089)
US avg: 33.1%
Korean War5.7%(142)
US avg: 4.5%
World War II0.2%(6)
US avg: 1%
Share of the 2,507 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Waldo County, decade by decade
Waldo County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
33,018
$55,557
$172,805
16.8%
2.7
2000
36,280
$61,911
$155,934
22.3%
6.1
2010
38,786
$59,430
$216,217
23.1%
8.4
2020
39,607
$70,339
$205,319
31.6%
16.5
2024
40,192
$72,782
$257,700
34.4%
16.9
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
