Winneshiek County, Iowa Population 2024

19,728

Winneshiek County, Iowa's estimated 2024 population is 19,728 with a growth rate of -0.44% in the past year according to the most recent United States census data. Winneshiek County, Iowa is the 33rd largest county in Iowa. The 2010 population was 21,076 and has seen a growth of -6.4% since that time.

Note: data after 2022 is projected based on recent change

35 Rows

Year
Population
Growth
Change
202919,293-87-0.45%
202819,380-87-0.45%
202719,467-87-0.44%
202619,554-87-0.44%
202519,641-87-0.44%
202419,728-87-0.44%
202319,815-87-0.44%
202219,902-33-0.17%
202119,935-110-0.55%
202020,045530.27%
201919,992-34-0.17%
201820,026-114-0.57%
201720,140-292-1.43%
201620,432-324-1.56%
201520,756480.23%
201420,708-141-0.68%
201320,849-199-0.95%
201221,048-7-0.03%
201121,055-21-0.1%
201021,07600%
199020,847-1,029-4.7%
198021,8761180.54%
197021,7581070.49%
196021,651120.06%
195021,639-624-2.8%
194022,2636332.93%
193021,630-461-2.09%
192022,0913621.67%
191021,729-2,002-8.44%
190023,7311,2035.34%
189022,528-1,410-5.89%
188023,9383681.56%
187023,5709,62869.06%
186013,94213,3962453.48%
1850546-18,747-97.17%
2024 Growth Rate
-0.44% (-87)
County Website
Winneshiek County
State
Iowa
County Seat
Decorah
2020 Population
20,045
Area
690 mi²
Density
29 people/mi²
Growth Since 2020
-1.58% (-317)
Founded
1847

Population by Race

Race
Population
Percentage (of total)
White19,16595.59%
Two or more races3921.96%
Black or African American1630.81%
Other race1430.71%
Asian1320.66%
Native American540.27%
Native Hawaiian or Pacific Islander10%

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Winneshiek County, Iowa Population by Race

Winneshiek County, Iowa Population Pyramid 2024

Winneshiek County, Iowa Median Age

42.6

Total

42.2

Male

42.9

Female

Winneshiek County, Iowa Adults

There are 16,324 adults, (4,465 of whom are seniors) in Winneshiek County, Iowa.

Winneshiek County, Iowa Age Dependency

69.1

Age Dependency Ratio

37.7

Old Age Dependency Ratio

31.4

Child Dependency Ratio

Winneshiek County, Iowa Sex Ratio

Female9,97849.77%
Male10,07250.23%

Winneshiek County, Iowa Population by Age

Winneshiek County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All8,2182.1976.423.6
Married4,5262.8189.310.7
Non Family2,9681.1360.239.8
Female5092.7352.747.3
Male2152.48614

2.74

Average Family Size

2.19

Average Household Size

76.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Winneshiek County, Iowa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade3522.62%
Associates Degree1,99314.83%
Bachelors Degree2,62919.57%
Graduate Degree1,47210.96%
High School Graduate4,43433%
Less Than 9th Grade2952.2%
Some College2,26116.83%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Winneshiek County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White13,00312,4223,947
2+ Races18915152
Hispanic17812325
Other Race877013
Black565649
Asian43328
Native American232323

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

The highest rate of bachelors degrees is among native american people with a rate of 100%.

Winneshiek County, Iowa Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$47,941$51,250$46,197
Graduate Degree$70,250$76,068$64,022
High School Graduate$39,245$45,925$29,481
Less Than 9th Grade$30,655$37,813$0
Overall$44,821$48,085$39,189
Some College$43,375$50,863$34,700

$44,821

Average Earnings

$48,085

Average Male

$39,189

Average Female

Winneshiek County, Iowa Earnings by Educational Attainment

Winneshiek County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Winneshiek County, Iowa Language

96.28% of Winneshiek County, Iowa residents speak only English, while 3.72% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.84% of the population.

Winneshiek County, Iowa Language

Winneshiek County, Iowa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White17,1201,4428.42%
Hispanic31912438.87%
Multiple3094012.94%
Asian743445.95%
Other1242016.13%
Black13310.75%

8.93%

Overall Poverty Rate

7.69%

Male Poverty Rate

10.23%

Female Poverty Rate

Poverty in Winneshiek County, Iowa

The race most likely to be in poverty in Winneshiek County, Iowa is Asian, with 45.95% below the poverty level.

The race least likely to be in poverty in Winneshiek County, Iowa is Black, with 0.75% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.98%. Among those working part-time, it was 10.67%, and for those that did not work, the poverty rate was 15.55%.

Winneshiek County, Iowa Poverty

rate

Rate
Poverty
High School11.71%
Some College9.56%
Less Than 9th Grade9.46%
Bachelors or Greater3.29%

Winneshiek County, Iowa Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed15.44%
Female Employed6.01%
Male Employed4.29%
Female Unemployed0%

Winneshiek County, Iowa Poverty Rate by Employment Status and Sex

Winneshiek County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$88,023$110,165
Households$67,770$90,134
Married Families$95,233$-999,999,999
Non Families$41,725$53,292

mean

median

Income by Household Type

Winneshiek County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

54.3%

Overall Marriage Rate

54.9%

Male Marriage Rate

53.8%

Female Marriage Rate

Winneshiek County, Iowa Married by Age and Sex

male

female

Winneshiek County, Iowa 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 55-64.

Winneshiek County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Winneshiek County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,143

Number of Veterans

1,053

Male Veterans

90

Female Veterans

War
Veterans
Vietnam569
Second Gulf War172
First Gulf War150
Korea91
World War II2

Winneshiek County, Iowa Veterans by War

count

Age Group
Veterans
65 to 74437
75+335
35 to 54166
55 to 64133
18 to 3472

Winneshiek County, Iowa Veterans by Age

count

Name
Veterans
% of Total
White1,1070.07089337175792507
2+ Races210.0670926517571885
Asian120.09090909090909091
Other Race30.02654867256637168
Hispanic30.010344827586206896

Winneshiek County, Iowa Veterans by Race

Winneshiek County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9.41%

Veteran Poverty Rate

23.51%

Veteran Disability Rate

Winneshiek County, Iowa Veterans by Education

LaborForceParticipation

66.3%

Labor Force Participation

65%

Employment Rate

2.1%

Unemployment Rate

Winneshiek County, Iowa Employment by Age

LaborForceParticipation

Winneshiek County, Iowa Employment by Race

LaborForceParticipation

Winneshiek 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

70.14%

Born in Winneshiek County, Iowa

98.13%

Native Born

1.87%

Foreign Born

1.21%

Non Citizen

0.66%

Naturalized

Place of Birth

98.13% of Winneshiek County, Iowa residents were born in the United States, with 70.14% having been born in Iowa. 1.21% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Winneshiek County, Iowa Place of Birth

Sources