Iowa County, Iowa Population 2024

16,265

Iowa County, Iowa's estimated 2024 population is 16,265 with a growth rate of -0.71% in the past year according to the most recent United States census data. Iowa County, Iowa is the 46th largest county in Iowa. The 2010 population was 16,335 and has seen a growth of -0.43% since that time.

Note: data after 2022 is projected based on recent change

35 Rows

Year
Population
Growth
Change
202915,685-116-0.73%
202815,801-116-0.73%
202715,917-116-0.72%
202616,033-116-0.72%
202516,149-116-0.71%
202416,265-116-0.71%
202316,381-116-0.7%
202216,497-89-0.54%
202116,586-72-0.43%
202016,6585123.17%
201916,146-4-0.02%
201816,150110.07%
201716,139-63-0.39%
201616,202-91-0.56%
201516,293-32-0.2%
201416,325390.24%
201316,2861030.64%
201216,183-141-0.86%
201116,324-11-0.07%
201016,33500%
199014,630-799-5.18%
198015,429100.06%
197015,419-977-5.96%
196016,3965613.54%
195015,835-1,181-6.94%
194017,016-316-1.82%
193017,332-1,268-6.82%
192018,6001911.04%
191018,409-1,135-5.81%
190019,5441,2746.97%
189018,270-951-4.95%
188019,2212,57715.48%
187016,6448,615107.3%
18608,0297,207876.76%
1850822-14,863-94.76%
2024 Growth Rate
-0.71% (-116)
County Website
Iowa County
State
Iowa
County Seat
Marengo
2020 Population
16,658
Area
586 mi²
Density
28 people/mi²
Growth Since 2020
-2.36% (-393)
Founded
1843

Population by Race

Race
Population
Percentage (of total)
White15,77195.15%
Two or more races5713.44%
Black or African American1080.65%
Other race850.51%
Asian310.19%
Native American90.05%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Iowa County, Iowa Population by Race

Iowa County, Iowa Population Pyramid 2024

Iowa County, Iowa Median Age

42.2

Total

42.5

Male

42

Female

Iowa County, Iowa Adults

There are 12,701 adults, (3,168 of whom are seniors) in Iowa County, Iowa.

Iowa County, Iowa Age Dependency

73.9

Age Dependency Ratio

33.2

Old Age Dependency Ratio

40.6

Child Dependency Ratio

Iowa County, Iowa Sex Ratio

Female8,10548.9%
Male8,47051.1%

Iowa County, Iowa Population by Age

Iowa County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6,7982.3977.722.3
Married3,5533.0191.58.5
Non Family2,4191.1661.638.4
Female5183.2450.649.4
Male3083.3790.39.7

2.97

Average Family Size

2.39

Average Household Size

77.7%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Iowa County, Iowa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade4964.29%
Associates Degree1,58713.74%
Bachelors Degree1,87616.24%
Graduate Degree7536.52%
High School Graduate4,10335.52%
Less Than 9th Grade2342.03%
Some College2,50121.65%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Iowa County, Iowa Educational Attainment by Sex (over 25)

Iowa County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White10,97410,3772,442
Hispanic32423578
2+ Races18417885
Black91240
Other Race66330
Asian313124
Native American990

The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 77.42%.

Iowa County, Iowa Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$61,466$62,344$57,500
Graduate Degree$80,469$103,054$54,100
High School Graduate$37,677$42,399$30,543
Less Than 9th Grade$42,083$44,630$20,750
Overall$47,058$56,476$40,203
Some College$51,261$62,519$40,125

$47,058

Average Earnings

$56,476

Average Male

$40,203

Average Female

Iowa County, Iowa Earnings by Educational Attainment

Iowa County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Iowa County, Iowa Language

97.8% of Iowa County, Iowa residents speak only English, while 2.2% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.23% of the population.

Iowa County, Iowa Language

Iowa County, Iowa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White15,2051,2388.14%
Hispanic61616827.27%
Multiple57110117.69%
Black926570.65%
Other852225.88%
Native9333.33%

9.13%

Overall Poverty Rate

8.77%

Male Poverty Rate

9.51%

Female Poverty Rate

Poverty in Iowa County, Iowa

The race most likely to be in poverty in Iowa County, Iowa is Black, with 70.65% below the poverty level.

The race least likely to be in poverty in Iowa County, Iowa is White, with 8.14% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.92%. Among those working part-time, it was 11.28%, and for those that did not work, the poverty rate was 15.06%.

Iowa County, Iowa Poverty

rate

Rate
Poverty
Less Than 9th Grade18.29%
High School7.74%
Some College6.83%
Bachelors or Greater3.08%

Iowa County, Iowa Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed45.9%
Male Unemployed9.68%
Female Employed5.18%
Male Employed4.59%

Iowa County, Iowa Poverty Rate by Employment Status and Sex

Iowa County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$90,301$120,234
Households$69,787$97,019
Married Families$98,734$-999,999,999
Non Families$46,602$52,056

mean

median

Income by Household Type

Iowa County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

54.9%

Overall Marriage Rate

55.3%

Male Marriage Rate

54.5%

Female Marriage Rate

Iowa County, Iowa Married by Age and Sex

male

female

Iowa County, Iowa Marriage

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.

Iowa County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Iowa County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

968

Number of Veterans

854

Male Veterans

114

Female Veterans

War
Veterans
Vietnam301
First Gulf War166
Second Gulf War151
Korea60
World War II25

Iowa County, Iowa Veterans by War

count

Age Group
Veterans
75+254
55 to 64227
65 to 74220
35 to 54197
18 to 3470

Iowa County, Iowa Veterans by Age

count

Name
Veterans
% of Total
White9450.07720588235294118
Other Race120.18181818181818182
Hispanic120.032432432432432434
2+ Races110.04583333333333333

Iowa County, Iowa Veterans by Race

Iowa County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.25%

Veteran Poverty Rate

21.53%

Veteran Disability Rate

Iowa County, Iowa Veterans by Education

LaborForceParticipation

66.8%

Labor Force Participation

64.5%

Employment Rate

3.2%

Unemployment Rate

Iowa County, Iowa Employment by Age

LaborForceParticipation

Iowa County, Iowa Employment by Race

LaborForceParticipation

Iowa County, Iowa Employment by Education

Origin of Non-Citizens

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.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

83.51%

Born in Iowa County, Iowa

98.86%

Native Born

1.14%

Foreign Born

0.68%

Non Citizen

0.46%

Naturalized

Place of Birth

98.86% of Iowa County, Iowa residents were born in the United States, with 83.51% having been born in Iowa. 0.68% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Iowa County, Iowa Place of Birth

Sources