Lyon County, Iowa Population 2024

12,471

Lyon County, Iowa's estimated 2024 population is 12,471 with a growth rate of 1.19% in the past year according to the most recent United States census data. Lyon County, Iowa is the 60th largest county in Iowa. The 2010 population was 11,569 and has seen a growth of 7.8% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202913,2061471.13%
202813,0591471.14%
202712,9121471.15%
202612,7651471.17%
202512,6181471.18%
202412,4711471.19%
202312,3241471.21%
202212,1771371.14%
202112,0401100.92%
202011,9301241.05%
201911,806-43-0.36%
201811,849580.49%
201711,791-9-0.08%
201611,800450.38%
201511,755460.39%
201411,70990.08%
201311,700-61-0.52%
201211,761670.57%
201111,6941251.08%
201011,56900%
199011,952-944-7.32%
198012,896-444-3.33%
197013,340-1,128-7.8%
196014,468-229-1.56%
195014,697-677-4.4%
194015,374810.53%
193015,293-138-0.89%
192015,4318075.52%
191014,6241,45911.08%
190013,1654,48551.67%
18908,6806,712341.06%
18801,9681,747790.5%
1870221-12,985-98.33%
2024 Growth Rate
1.19% (147)
County Website
Lyon County
State
Iowa
County Seat
Rock Rapids
2020 Population
11,930
Area
588 mi²
Density
21 people/mi²
Growth Since 2020
4.53% (541)
Founded
January 15, 1851

Population by Race

Race
Population
Percentage (of total)
White11,45395.26%
Two or more races3402.83%
Other race1110.92%
Asian400.33%
Native Hawaiian or Pacific Islander350.29%
Black or African American240.2%
Native American200.17%

White

Two or more races

Other race

Asian

Native Hawaiian or Pacific Islander

Black or African American

Native American

Lyon County, Iowa Population by Race

Lyon County, Iowa Population Pyramid 2024

Lyon County, Iowa Median Age

38.3

Total

37.2

Male

38.8

Female

Lyon County, Iowa Adults

There are 8,642 adults, (2,279 of whom are seniors) in Lyon County, Iowa.

Lyon County, Iowa Age Dependency

89

Age Dependency Ratio

35.8

Old Age Dependency Ratio

53.1

Child Dependency Ratio

Lyon County, Iowa Sex Ratio

Female5,86248.76%
Male6,16151.24%

Lyon County, Iowa Population by Age

Lyon County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All4,4122.6883.916.1
Married2,8393.2792.27.8
Non Family1,2531.1668.131.9
Female1793.6858.741.3
Male1413.2988.711.3

3.27

Average Family Size

2.68

Average Household Size

83.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Lyon County, Iowa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1802.33%
Associates Degree1,20315.57%
Bachelors Degree1,17415.2%
Graduate Degree3274.23%
High School Graduate3,21541.62%
Less Than 9th Grade2282.95%
Some College1,39718.09%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Lyon County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White7,4227,0791,463
Hispanic18113622
2+ Races14713920
Other Race69321
Native American17170
Islander1300
Black884
Asian750

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

The highest rate of bachelors degrees is among black people with a rate of 50%.

Lyon County, Iowa Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$63,318$84,583$58,333
Graduate Degree$66,979$59,886$67,443
High School Graduate$37,118$44,792$29,083
Less Than 9th Grade$28,967$29,702$24,167
Overall$45,962$54,026$35,156
Some College$47,675$62,701$31,667

$45,962

Average Earnings

$54,026

Average Male

$35,156

Average Female

Lyon County, Iowa Earnings by Educational Attainment

Lyon County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Lyon County, Iowa Language

97.32% of Lyon County, Iowa residents speak only English, while 2.68% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.75% of the population.

Lyon County, Iowa Language

Lyon County, Iowa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White11,2054504.02%
Other11165.41%
Hispanic35561.69%
Multiple33030.91%

3.88%

Overall Poverty Rate

3.33%

Male Poverty Rate

4.46%

Female Poverty Rate

Poverty in Lyon County, Iowa

The race most likely to be in poverty in Lyon County, Iowa is Other, with 5.41% below the poverty level.

The race least likely to be in poverty in Lyon County, Iowa is Multiple, with 0.91% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.88%. Among those working part-time, it was 4.97%, and for those that did not work, the poverty rate was 9.56%.

Lyon County, Iowa Poverty

rate

Rate
Poverty
Less Than 9th Grade13.76%
High School4.69%
Some College3.23%
Bachelors or Greater2.71%

Lyon County, Iowa Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed13.51%
Female Unemployed2.82%
Female Employed1.77%
Male Employed1.75%

Lyon County, Iowa Poverty Rate by Employment Status and Sex

Lyon County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$86,215$103,496
Households$73,735$89,292
Married Families$89,877$-999,999,999
Non Families$41,480$51,969

mean

median

Income by Household Type

Lyon County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

62.8%

Overall Marriage Rate

61.9%

Male Marriage Rate

63.6%

Female Marriage Rate

Lyon County, Iowa Married by Age and Sex

male

female

Lyon 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.

Lyon County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Lyon County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

565

Number of Veterans

541

Male Veterans

24

Female Veterans

War
Veterans
Vietnam343
First Gulf War54
Second Gulf War46
Korea41
World War II5

Lyon County, Iowa Veterans by War

count

Age Group
Veterans
65 to 74296
75+136
55 to 6478
35 to 5429
18 to 3426

Lyon County, Iowa Veterans by Age

count

Name
Veterans
% of Total
White5606.73%
2+ Races42.5%
Other Race11.14%
Hispanic10.49%

Lyon County, Iowa Veterans by Race

Lyon County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.14%

Veteran Poverty Rate

26.6%

Veteran Disability Rate

Lyon County, Iowa Veterans by Education

LaborForceParticipation

66.8%

Labor Force Participation

65.1%

Employment Rate

2.4%

Unemployment Rate

Lyon County, Iowa Employment by Age

LaborForceParticipation

Lyon County, Iowa Employment by Race

LaborForceParticipation

Lyon 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

51.29%

Born in Lyon County, Iowa

98.34%

Native Born

1.66%

Foreign Born

1.01%

Non Citizen

0.64%

Naturalized

Place of Birth

98.34% of Lyon County, Iowa residents were born in the United States, with 51.29% having been born in Iowa. 1.01% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Lyon County, Iowa Place of Birth

Sources