Waterloo is a city located in Black Hawk County Iowa. It is also the county seat of Black Hawk County. With a 2023 population of 66,987, it is the 9th largest city in Iowa and the 621st largest city in the United States.Waterloo is currently declining at a rate of -0.16% annually and its population has decreased by -0.49% since the most recent census, which recorded a population of 67,314 in 2020. Spanning over 63 miles, Waterloo has a population density of 1,091 people per square mile.
The average household income in Waterloo is $64,514 with a poverty rate of 21.49%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Waterloo is 36.7 years, 35.5 years for males, and 38 years for females.
According to the most recent ACS, the racial composition of Waterloo was:
White
Black or African American
Two or more races
Asian
Other race
Native American
Native Hawaiian or Pacific Islander
2.99
Average Family Size
2.32
Average Household Size
59.9%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among white people with a rate of 79.48%.
The highest rate of bachelors degrees is among islander people with a rate of 22.16%.
All
Male
Female
$34,772
Average Earnings
$39,084
Average Male
$30,453
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
87.37% of Waterloo residents speak only English, while 12.63% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 5.59% of the population.
rate
21.49%
Overall Poverty Rate
15.9%
Male Poverty Rate
19.14%
Female Poverty Rate
The race most likely to be in poverty in Waterloo is Islander, with 63.78% below the poverty level.
The race least likely to be in poverty in Waterloo is Asian, with 10.58% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 4.02%. Among those working part-time, it was 21.05%, and for those that did not work, the poverty rate was 26.15%.
rate
rate
Households
Families
MarriedFamilies
NonFamilies
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
43.8%
Overall Marriage Rate
44.1%
Male Marriage Rate
43.4%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
3,597
Number of Veterans
3,275
Male Veterans
322
Female Veterans
count
count
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
8.76%
Veteran Poverty Rate
34.43%
Veteran Disability Rate
LaborForceParticipation
65.5%
Labor Force Participation
61.1%
Employment Rate
6.7%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
69.85%
Born in Waterloo
90.89%
Native Born
9.64%
Foreign Born
6.28%
Non Citizen
3.36%
Naturalized
90.89% of Waterloo residents were born in the United States, with 69.85% having been born in Iowa. 6.28% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Africa.