Riley County, Kansas Population 2024

71,241

Riley County, Kansas's estimated 2024 population is 71,241 with a growth rate of -0.23% in the past year according to the most recent United States census data. Riley County, Kansas is the 7th largest county in Kansas. The 2010 population was 71,557 and has seen a growth of -0.44% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202970,436-161-0.23%
202870,597-161-0.23%
202770,758-161-0.23%
202670,919-161-0.23%
202571,080-161-0.23%
202471,241-161-0.23%
202371,402-161-0.22%
202271,563-308-0.43%
202171,871-145-0.2%
202072,016-746-1.03%
201972,762-2,064-2.76%
201874,8266970.94%
201774,129-1,245-1.65%
201675,374-1,919-2.48%
201577,2937230.94%
201476,570-426-0.55%
201376,996-549-0.71%
201277,5454,0965.58%
201173,4491,8922.64%
201071,55700%
199067,1393,6345.72%
198063,5056,71711.83%
197056,78814,87435.49%
196041,9148,50925.47%
195033,40512,78862.03%
194020,6177353.7%
193019,882-768-3.72%
192020,6504,86730.84%
191015,7831,95514.14%
190013,8286454.89%
189013,1832,75326.4%
188010,4305,325104.31%
18705,1053,881317.08%
18601,224-69,212-98.26%
2024 Growth Rate
-0.23% (-161)
County Website
Riley County
State
Kansas
County Seat
Manhattan
2020 Population
72,016
Area
610 mi²
Density
117 people/mi²
Growth Since 2020
-1.08% (-775)
Founded
August 25, 1855

Population by Race

Race
Population
Percentage (of total)
White55,83177.86%
Two or more races5,8268.12%
Black or African American4,5526.35%
Asian2,9134.06%
Other race1,5962.23%
Native American7931.11%
Native Hawaiian or Pacific Islander1990.28%

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Riley County, Kansas Population by Race

Riley County, Kansas Population Pyramid 2024

Riley County, Kansas Median Age

25.2

Total

24.6

Male

25.9

Female

Riley County, Kansas Adults

There are 60,068 adults, (7,015 of whom are seniors) in Riley County, Kansas.

Riley County, Kansas Age Dependency

35.2

Age Dependency Ratio

13.2

Old Age Dependency Ratio

21.9

Child Dependency Ratio

Riley County, Kansas Sex Ratio

Female33,55146.79%
Male38,15953.21%

Riley County, Kansas Population by Age

Riley County, Kansas Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All27,1372.2544.955.1
Non Family13,2241.5627.372.7
Married11,2752.967.532.5
Female1,6902.9833.566.5
Male9482.774060

2.84

Average Family Size

2.25

Average Household Size

44.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Riley County, Kansas Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade8832.44%
Associates Degree3,2599.02%
Bachelors Degree9,49526.27%
Graduate Degree7,84821.71%
High School Graduate6,18917.12%
Less Than 9th Grade5211.44%
Some College7,95422%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Riley County, Kansas Educational Attainment by Sex (over 25)

Riley County, Kansas Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White27,54126,94414,078
Hispanic3,4572,928844
2+ Races2,1221,740603
Black1,9311,768525
Asian1,6211,6211,311
Other Race895858318
Native American53052989
Islander15915936

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

The highest rate of bachelors degrees is among asian people with a rate of 80.88%.

Riley County, Kansas Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$50,451$61,462$44,319
Graduate Degree$66,590$68,826$61,483
High School Graduate$37,267$40,967$26,461
Less Than 9th Grade$28,675$35,753$13,188
Overall$45,737$50,836$40,777
Some College$39,553$45,889$34,367

$45,737

Average Earnings

$50,836

Average Male

$40,777

Average Female

Riley County, Kansas Earnings by Educational Attainment

Riley County, Kansas Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Riley County, Kansas Language

91.49% of Riley County, Kansas residents speak only English, while 8.51% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.22% of the population.

Riley County, Kansas Language

Riley County, Kansas Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White45,5509,31020.44%
Hispanic6,1691,86130.17%
Multiple5,3141,48727.98%
Black3,13781926.11%
Asian2,54574629.31%
Other1,52354135.52%
Native76915019.51%

22.04%

Overall Poverty Rate

21.55%

Male Poverty Rate

22.55%

Female Poverty Rate

Poverty in Riley County, Kansas

The race most likely to be in poverty in Riley County, Kansas is Other, with 35.52% below the poverty level.

The race least likely to be in poverty in Riley County, Kansas is Native, with 19.51% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.8%. Among those working part-time, it was 43.62%, and for those that did not work, the poverty rate was 30.47%.

Riley County, Kansas Poverty

rate

Rate
Poverty
Less Than 9th Grade43.95%
High School18.04%
Some College11.34%
Bachelors or Greater6.56%

Riley County, Kansas Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed48.91%
Female Unemployed34.42%
Female Employed19.84%
Male Employed16.5%

Riley County, Kansas Poverty Rate by Employment Status and Sex

Riley County, Kansas Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$84,939$110,462
Households$59,560$82,458
Married Families$97,533$-999,999,999
Non Families$37,900$50,642

mean

median

Income by Household Type

Riley County, Kansas Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

38.6%

Overall Marriage Rate

36.2%

Male Marriage Rate

41.4%

Female Marriage Rate

Riley County, Kansas Married by Age and Sex

male

female

Riley County, Kansas 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 55-64.

Riley County, Kansas Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Riley County, Kansas Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

4,224

Number of Veterans

3,273

Male Veterans

951

Female Veterans

War
Veterans
Second Gulf War2,276
First Gulf War1,189
Vietnam993
Korea160
World War II25

Riley County, Kansas Veterans by War

count

Age Group
Veterans
18 to 341,181
35 to 541,091
55 to 64703
65 to 74699
75+550

Riley County, Kansas Veterans by Age

count

Name
Veterans
% of Total
White3,1087.1%
Black48920.84%
Hispanic3568.35%
Other Race27222.69%
Islander12276.73%
2+ Races1193.88%
Asian723.25%
Native American427.3%

Riley County, Kansas Veterans by Race

Riley County, Kansas Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9%

Veteran Poverty Rate

28.78%

Veteran Disability Rate

Riley County, Kansas Veterans by Education

LaborForceParticipation

70.9%

Labor Force Participation

57.2%

Employment Rate

4.7%

Unemployment Rate

Riley County, Kansas Employment by Age

LaborForceParticipation

Riley County, Kansas Employment by Race

LaborForceParticipation

Riley County, Kansas 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

47.07%

Born in Riley County, Kansas

93.24%

Native Born

6.76%

Foreign Born

4.31%

Non Citizen

2.45%

Naturalized

Place of Birth

93.24% of Riley County, Kansas residents were born in the United States, with 47.07% having been born in Kansas. 4.31% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Riley County, Kansas Place of Birth

Sources