Madison County, Iowa Population 2024

16,902

Madison County, Iowa's estimated 2024 population is 16,902 with a growth rate of -0.41% in the past year according to the most recent United States census data. Madison County, Iowa is the 41st largest county in Iowa. The 2010 population was 15,738 and has seen a growth of 7.4% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202916,557-69-0.42%
202816,626-69-0.41%
202716,695-69-0.41%
202616,764-69-0.41%
202516,833-69-0.41%
202416,902-69-0.41%
202316,971-69-0.4%
202217,0402471.47%
202116,7931640.99%
202016,6293562.19%
201916,2731330.82%
201816,1401350.84%
201716,0052051.3%
201615,800730.46%
201515,7271070.69%
201415,6201380.89%
201315,482-157-1%
201215,639-99-0.63%
201115,73800%
201015,73800%
199012,483-114-0.9%
198012,5971,0398.99%
197011,558-737-5.99%
196012,295-836-6.37%
195013,131-1,394-9.6%
194014,5251941.35%
193014,331-689-4.59%
192015,020-601-3.85%
191015,621-2,089-11.8%
190017,7101,73310.85%
189015,977-1,247-7.24%
188017,2243,34024.06%
187013,8846,54589.18%
18607,3396,160522.48%
18501,179-15,378-92.88%
2024 Growth Rate
-0.41% (-69)
County Website
Madison County
State
Iowa
County Seat
Winterset
2020 Population
16,629
Area
561 mi²
Density
30 people/mi²
Growth Since 2020
1.64% (273)
Founded
1846

Population by Race

Race
Population
Percentage (of total)
White16,03195.65%
Two or more races3762.24%
Black or African American2111.26%
Asian580.35%
Other race470.28%
Native American280.17%
Native Hawaiian or Pacific Islander90.05%

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Madison County, Iowa Population by Race

Madison County, Iowa Population Pyramid 2024

Madison County, Iowa Median Age

41

Total

40.7

Male

41.3

Female

Madison County, Iowa Adults

There are 12,585 adults, (3,027 of whom are seniors) in Madison County, Iowa.

Madison County, Iowa Age Dependency

75.4

Age Dependency Ratio

31.7

Old Age Dependency Ratio

43.7

Child Dependency Ratio

Madison County, Iowa Sex Ratio

Female8,21249%
Male8,54851%

Madison County, Iowa Population by Age

Madison County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6,6252.581.318.7
Married3,6833.1293.26.8
Non Family2,2801.2263.636.4
Female4143.6168.631.4
Male2483.1887.912.1

3.09

Average Family Size

2.5

Average Household Size

81.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Madison County, Iowa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade2892.53%
Associates Degree1,36811.99%
Bachelors Degree2,20119.28%
Graduate Degree7096.21%
High School Graduate3,84633.7%
Less Than 9th Grade2482.17%
Some College2,75324.12%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Madison County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White10,87810,3922,810
Hispanic25523311
2+ Races17216160
Black695122
Asian42427
Other Race40407
Native American28140

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

The highest rate of bachelors degrees is among 2+ races people with a rate of 34.88%.

Madison County, Iowa Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$72,868$92,917$55,156
Graduate Degree$74,500$66,848$76,000
High School Graduate$45,974$58,644$33,346
Less Than 9th Grade$31,544$32,270$0
Overall$54,689$61,855$44,389
Some College$56,150$59,750$46,207

$54,689

Average Earnings

$61,855

Average Male

$44,389

Average Female

Madison County, Iowa Earnings by Educational Attainment

Madison County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Madison County, Iowa Language

95.87% of Madison County, Iowa residents speak only English, while 4.13% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 3.11% of the population.

Madison County, Iowa Language

Madison County, Iowa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White15,6361,0526.73%
Multiple365256.85%
Asian582441.38%
Black210146.67%
Hispanic36692.46%
Other4037.5%

6.8%

Overall Poverty Rate

5.74%

Male Poverty Rate

7.91%

Female Poverty Rate

Poverty in Madison County, Iowa

The race most likely to be in poverty in Madison County, Iowa is Asian, with 41.38% below the poverty level.

The race least likely to be in poverty in Madison County, Iowa is Hispanic, with 2.46% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.68%. Among those working part-time, it was 9.74%, and for those that did not work, the poverty rate was 15.58%.

Madison County, Iowa Poverty

rate

Rate
Poverty
Less Than 9th Grade19.17%
High School11.47%
Some College4.13%
Bachelors or Greater0.66%

Madison County, Iowa Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed25%
Female Employed4.63%
Male Employed1.79%
Female Unemployed0%

Madison County, Iowa Poverty Rate by Employment Status and Sex

Madison County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$111,892$124,613
Households$89,542$103,385
Married Families$118,172$-999,999,999
Non Families$45,188$58,045

mean

median

Income by Household Type

Madison County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

57.2%

Overall Marriage Rate

58.8%

Male Marriage Rate

55.6%

Female Marriage Rate

Madison County, Iowa Married by Age and Sex

male

female

Madison County, Iowa Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

Madison County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Madison County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

943

Number of Veterans

897

Male Veterans

46

Female Veterans

War
Veterans
Vietnam365
Second Gulf War226
First Gulf War165
Korea26
World War II0

Madison County, Iowa Veterans by War

count

Age Group
Veterans
75+253
35 to 54249
55 to 64226
65 to 74163
18 to 3452

Madison County, Iowa Veterans by Age

count

Name
Veterans
% of Total
White9377.71%
Hispanic134.98%
2+ Races41.66%
Other Race25%

Madison County, Iowa Veterans by Race

Madison County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.39%

Veteran Poverty Rate

19.42%

Veteran Disability Rate

Madison County, Iowa Veterans by Education

LaborForceParticipation

69.7%

Labor Force Participation

67.8%

Employment Rate

2.7%

Unemployment Rate

Madison County, Iowa Employment by Age

LaborForceParticipation

Madison County, Iowa Employment by Race

LaborForceParticipation

Madison 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

77.18%

Born in Madison County, Iowa

98.64%

Native Born

1.36%

Foreign Born

0.38%

Non Citizen

0.98%

Naturalized

Place of Birth

98.64% of Madison County, Iowa residents were born in the United States, with 77.18% having been born in Iowa. 0.38% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Madison County, Iowa Place of Birth

Sources