Onawa, Iowa Population 2022

2,707
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Onawa is a city located in Monona County Iowa. Onawa has a 2020 population of 2,707. It is also the county seat of Monona County. Onawa is currently declining at a rate of -0.70% annually and its population has decreased by -9.74% since the most recent census, which recorded a population of 2,999 in 2010.

The average household income in Onawa is $50,536 with a poverty rate of 17.73%. The median rental costs in recent years comes to $707 per month, and the median house value is $82,100. The median age in Onawa is 41.7 years, 37.7 years for males, and 46.8 years for females.

Onawa Demographics

According to the most recent ACS, the racial composition of Onawawas:

  • White: 93.29%
  • Two or more races: 3.30%
  • Native American: 2.04%
  • Native Hawaiian or Pacific Islander: 1.29%
  • Black or African American: 0.07%
  • Asian: 0.00%
  • Other race: 0.00%
The current population of Onawa, Iowa is 2,707 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 2,707.The last official US Census in 2010 recorded the population at 2,999.

Onawa, Iowa Population 2022

Population by Race

Race Population Percentage
White2,60193.29%
Black or African American20.07%
American Indian and Alaska Native572.04%
Native Hawaiian and Other Pacific Islander361.29%
Two or More Races923.30%
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Onawa Population by Race

Onawa Population Pyramid 2022

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Onawa Median Age

43.9


Total

37.1


Male

49.1


Female

Onawa Adults

There are 2,275 adults, (617 of whom are seniors) in Onawa.

Onawa Age Dependency

Age Dependency Ratio

37.2

Old Age Dependency Ratio

30.9

Child Dependency Ratio

Onawa Sex Ratio

Female

1,518

54.45%

Male

1,270

45.55%

Onawa Population by Age

Onawa Renter vs Owner Occupied by Household Type

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Onawa Household Types

Type Owner Renter
Married89.6%10.4%
All65.6%34.4%
Female55.2%44.8%
Male45.7%54.3%
Non Family45.4%54.6%

65.6%

Rate of Home Ownership

Onawa Households and Families

Type Count Average Size Owned
All1,2982.0865.6
Married5682.9189.6
Male462.4345.7
Female1162.7655.2
Non Family5681.0945.4

2.74

Average Family Size

2.08

Average Household Size

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Onawa Households by Type

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Education Attained Count Percentage
Less Than 9th Grade452.21%
9th to 12th Grade864.23%
High School Graduate84841.69%
Some College61730.33%
Associates Degree22511.06%
Bachelors Degree1366.69%
Graduate Degree773.79%
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Onawa Educational Attainment by Sex (over 25)

Onawa Educational Attainment by Race

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Race Total High School Bachelors
White1,8191,688213
Native American5757
Islander3636
2+ Races9292
Hispanic4343

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among white people with a rate of 11.71%.

Onawa Educational Attainment by Race

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Name Average Male Female
Overall$29,784$40,919$28,139
Less Than 9th Grade$18,281$23,542$12,019
High School Graduate$28,931$42,083$27,610
Some College$29,792$36,050$22,181
Bachelors Degree$$92,639$58,000
Graduate Degree$66,458$$66,458

$29,784

Average Earnings

$40,919

Average Male

$28,139

Average Female

Onawa Earnings by Educational Attainment

Onawa Language by Age

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Onawa Language

97.48% of Onawa residents speak only English, while 2.52% speak other languages. The non-English language spoken by the largest group is Other languages, which is spoken by 2.15% of the population.

Onawa Language

Onawa Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic736082.19%
Islander361850.00%
Multiple922325.00%
White2,47338115.41%
OtherNaN%

17.73%

Overall Poverty Rate

15.81%

Male Poverty Rate

19.36%

Female Poverty Rate

Poverty in Onawa

The race most likely to be in poverty in Onawa is Hispanic, with 82.19% below the poverty level.

The race least likely to be in poverty in Onawa is Other, with NaN% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 5.48%. Among those working part-time, it was 25.16%, and for those that did not work, the poverty rate was 29.12%.

Onawa Poverty

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Name Poverty
Less Than 9th Grade28.57%
High School13.57%
Some College22.33%
Bachelors or Greater0.00%

Onawa Poverty Rate by Education

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Rate Poverty
Male Employed14.03%
Male Unemployed0.00%
Female Employed10.85%
Female Unemployed0.00%

Onawa Poverty Rate by Employment Status and Sex

Onawa Income by Household Type

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Name Median Mean
Households$40,530$53,685
Families$59,135$69,507
Married Families$66,038-
Non Families$28,889$31,274
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Income by Household Type

Onawa Marital Status

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Marriage Rates

50.9%

Overall Marriage Rate

54.5%

Male Marriage Rate

47.9%

Female Marriage Rate

Onawa Married by Age and Sex

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Onawa Marriage

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 45-54.

Onawa Marital Status by Race

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Onawa Marital Status

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225

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Second Gulf War48
First Gulf War14
Vietnam61
Korea30
World War II3

Onawa Veterans by War

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Age Group Veterans
18 to 3448
35 to 5414
55 to 6461
65 to 7448
75+54

Onawa Veterans by Age

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Onawa Veterans by Race

Onawa Veterans by Education

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4.72%

Veteran Poverty Rate

40.57%

Veteran Disability Rate

Onawa Veterans by Education

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62.8%

Labor Force Participation

60.5%

Employment Rate

3.6%

Unemployment Rate

Onawa Employment by Age

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Onawa Employment by Race

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Onawa Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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70.48%

Born in Onawa

99.96%

Native Born

0.04%

Foreign Born

0.04%

Non Citizen

0.00%

Naturalized

Place of Birth

99.96% of Onawa residents were born in the United States, with 70.48% having been born in Iowa. 0.04% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Africa.

Onawa Place of Birth

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
19302,5380.00%
19403,4389003.08%
19503,498600.17%
19603,176-322-0.96%
19703,154-22-0.07%
19803,2831290.40%
19902,936-347-1.11%
20003,0911550.52%
20102,999-92-0.30%
20112,993-6-0.20%
20122,932-61-2.04%
20132,906-26-0.89%
20142,862-44-1.51%
20152,853-9-0.31%
20162,829-24-0.84%
20172,806-23-0.81%
20182,783-23-0.82%
20192,764-19-0.68%
20202,745-19-0.69%
20212,726-19-0.69%
20222,707-19-0.70%

Onawa Population by Year