Onawa is a city located in Monona County Iowa. Onawa has a 2024 population of 2,786. It is also the county seat of Monona County. Onawa is currently declining at a rate of -1.07% annually and its population has decreased by -4.13% since the most recent census, which recorded a population of 2,906 in 2020.
The average household income in Onawa is $65,673 with a poverty rate of 16.11%. The median age in Onawa is 36.3 years: 35.9 years for males, and 36.7 years for females.
According to the most recent ACS, the racial composition of Onawa was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,687 | 93.89% |
| Two or more races | 151 | 5.28% |
| Black or African American | 13 | 0.45% |
| Native Hawaiian or Pacific Islander | 6 | 0.21% |
| Native American | 5 | 0.17% |
| Asian | 0 | 0% |
| Other race | 0 | 0% |
White
Two or more races
Black or African American
Native Hawaiian or Pacific Islander
Native American
Asian
Other race
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 1,267 | 2.19 | 72.7 | 27.3 |
| Non Family | 550 | 1.14 | 63.6 | 36.4 |
| Married | 474 | 3.08 | 83.5 | 16.5 |
| Male | 129 | 2.58 | 62 | 38 |
| Female | 114 | 3.11 | 83.3 | 16.7 |
2.79
Average Family Size
2.19
Average Household Size
72.7%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 102 | 5.26% |
| Associates Degree | 188 | 9.7% |
| Bachelors Degree | 205 | 10.58% |
| Graduate Degree | 118 | 6.09% |
| High School Graduate | 805 | 41.54% |
| Less Than 9th Grade | 29 | 1.5% |
| Some College | 491 | 25.34% |
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
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 1,798 | 1,667 | 323 |
| 2+ Races | 103 | 103 | 0 |
| Hispanic | 39 | 39 | 0 |
| Black | 13 | 13 | 0 |
| Islander | 6 | 6 | 0 |
| Native American | 5 | 5 | 0 |
The highest rate of high school graduation is among black people with a rate of 100%.
The highest rate of bachelors degrees is among white people with a rate of 17.96%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $58,750 | $91,319 | $50,750 |
| Graduate Degree | $75,221 | $0 | $86,696 |
| High School Graduate | $35,160 | $66,484 | $18,250 |
| Less Than 9th Grade | $0 | $67,930 | $0 |
| Overall | $39,542 | $48,424 | $31,469 |
| Some College | $38,382 | $40,875 | $33,810 |
$39,542
Average Earnings
$48,424
Average Male
$31,469
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
98.29% of Onawa residents speak only English, while 1.71% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.71% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 2,578 | 379 | 14.7% |
| Hispanic | 64 | 39 | 60.94% |
| Multiple | 150 | 24 | 16% |
| Native | 5 | 5 | 100% |
| Islander | 6 | 3 | 50% |
16.11%
Overall Poverty Rate
12.88%
Male Poverty Rate
18.82%
Female Poverty Rate
The race most likely to be in poverty in Onawa is Native, with 100% below the poverty level.
The race least likely to be in poverty in Onawa is White, with 14.7% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 6.74%. Among those working part-time, it was 17.66%, and for those that did not work, the poverty rate was 25.23%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 29.23% |
| High School | 21.8% |
| Some College | 12.14% |
| Bachelors or Greater | 0% |
rate
Rate | Poverty |
|---|---|
| Male Unemployed | 70% |
| Female Employed | 10.49% |
| Male Employed | 4.99% |
| Female Unemployed | 0% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $67,946 | $81,531 |
| Households | $54,659 | $65,673 |
| Married Families | $79,500 | $-999,999,999 |
| Non Families | $28,409 | $36,528 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
43.2%
Overall Marriage Rate
44.0%
Male Marriage Rate
42.5%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
171
Number of Veterans
159
Male Veterans
12
Female Veterans
War | Veterans |
|---|---|
| Vietnam | 37 |
| First Gulf War | 33 |
| Second Gulf War | 17 |
| Korea | 0 |
| World War II | 0 |
count
Age Group | Veterans |
|---|---|
| 55 to 64 | 61 |
| 35 to 54 | 46 |
| 65 to 74 | 30 |
| 75+ | 30 |
| 18 to 34 | 4 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 171 | 8.42% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
45.57%
Veteran Disability Rate
LaborForceParticipation
60.2%
Labor Force Participation
59.5%
Employment Rate
1.3%
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
80.78%
Born in Onawa
100%
Native Born
0%
Foreign Born
0%
Non Citizen
0%
Naturalized
100% of Onawa residents were born in the United States, with 80.78% having been born in Iowa. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 2,636 | -30 | -1.13% |
| 2028 | 2,666 | -30 | -1.11% |
| 2027 | 2,696 | -30 | -1.1% |
| 2026 | 2,726 | -30 | -1.09% |
| 2025 | 2,756 | -30 | -1.08% |
| 2024 | 2,786 | -30 | -1.07% |
| 2023 | 2,816 | -8 | -0.28% |
| 2022 | 2,824 | -36 | -1.26% |
| 2021 | 2,860 | -46 | -1.58% |
| 2020 | 2,906 | 134 | 4.83% |
| 2019 | 2,772 | -4 | -0.14% |
| 2018 | 2,776 | -30 | -1.07% |
| 2017 | 2,806 | -22 | -0.78% |
| 2016 | 2,828 | -26 | -0.91% |
| 2015 | 2,854 | -9 | -0.31% |
| 2014 | 2,863 | -43 | -1.48% |
| 2013 | 2,906 | -27 | -0.92% |
| 2012 | 2,933 | -59 | -1.97% |
| 2011 | 2,992 | -9 | -0.3% |
| 2010 | 3,001 | 0 | 0% |
| 2000 | 3,091 | 155 | 5.28% |
| 1990 | 2,936 | -347 | -10.57% |
| 1980 | 3,283 | 129 | 4.09% |
| 1970 | 3,154 | -22 | -0.69% |
| 1960 | 3,176 | -322 | -9.21% |
| 1950 | 3,498 | 60 | 1.75% |
| 1940 | 3,438 | 900 | 35.46% |
| 1930 | 2,538 | -98 | -3.72% |