Jefferson County, Kansas Population 2018

Jefferson County, Kansas's estimated population is 18,998 with a growth rate of 0.75% in the past year according to the most recent United States census data. Jefferson County, Kansas is the 29th largest county in Kansas.

Year Population Growth Growth Rate
201718,856-142-0.75%
201718,9981420.75%
201618,856420.22%
201518,814-7-0.04%
201418,821320.17%
201318,789-88-0.47%
201218,877-79-0.42%
201118,956-181-0.95%
201019,1373,23220.32%
199015,9056984.59%
198015,2073,26227.31%
197011,9456936.16%
196011,2521681.52%
195011,084-1,634-12.85%
194012,718-1,411-9.99%
193014,129-621-4.21%
192014,750-1,076-6.80%
191015,826-1,707-9.74%
190017,5339135.49%
189016,6201,0576.79%
188015,5633,03724.25%
187012,5268,067180.92%
18604,4590.00%

Jefferson County, Kansas Population Growth

Population Data via

Population by Race

Race Population
White18,069
Two or More Races504
American Indian and Alaska Native114
Black or African American105
Some Other Race64

Data via US Census (2017 ACS 5-Year Survey): Table B03002

Jefferson County, Kansas Population Pyramid 2018

2004006008001,000 Male Population2004006008001,000 Female Population80757065605550454035302520151050

Data via US Census (2017 ACS 5-Year Survey): Table S0101

Jefferson County, Kansas Median Age

44


Total

42.8


Male

45


Female

Jefferson County, Kansas Adults

There are 14,440 adults, (3,348 of whom are seniors) in Jefferson County, Kansas.

Jefferson County, Kansas Age Dependency

70

Age Dependency Ratio

30.2

Old Age Dependency Ratio

39.8

Child Dependency Ratio

Jefferson County, Kansas Sex Ratio

Female

9,300

49.32%

Male

9,556

50.68%

Jefferson County, Kansas Households and Families

Jefferson County, Kansas Renter vs Owner Occupied by Household Type

Data via US Census (2017 ACS 5-Year Survey): Table S1101

Jefferson County, Kansas Household Types

Type Owner Renter
Married88.4%11.6%
Male83.5%16.5%
All81.8%18.2%
Non Family74.9%25.1%
Female55.4%44.6%

81.8%

Rate of Home Ownership

Jefferson County, Kansas Households by Type

Type Count Average Size Owned
All7,6812.4281.8
Married4,5802.9688.4
Non Family2,1761.1774.9
Female5922.755.4
Male3332.7683.5

2.85

Average Family Size

2.42

Average Household Size

4.9%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Jefferson County, Kansas Households

Jefferson County, Kansas Education

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

Education Attained Count Percentage
Less Than 9th Grade2351.78%
9th to 12th Grade7445.65%
High School Graduate5,18439.35%
Some College3,30625.09%
Associates Degree9136.93%
Bachelors Degree1,88714.32%
Graduate Degree9066.88%

Jefferson County, Kansas Educational Attainment by Race

Name Total High School Bachelors
White12,47411,5602,670
Multiple Races27024940
Hispanic26523433
Black1029515
Native American938728
Other Race402612

The highest rate of high school graduation is among native american people with a rate of 93.55%.

The highest rate of bachelors degrees is among native american people with a rate of 30.11%.

Jefferson County, Kansas Earnings by Educational Attainment

Name Average Male Female
Overall$40,273$46,335$32,664
Less Than High School$30,497$31,477$19,375
High School Grad$38,611$47,049$27,250
Some College$36,690$45,461$31,842
Bachelors Degree$43,931$43,646$44,149
Graduate Degree$59,750$76,780$52,569

$40,273

Average Earnings

$46,335

Average Male

$32,664

Average Female

Jefferson County, Kansas Language

Jefferson County, Kansas Language by Age

Jefferson County, Kansas Language

98.61% of Jefferson County, Kansas residents speak only English, while 1.39% speak other languages. The largest non-English language is Spanish, which is spoken by 0.70% of the population.

Jefferson County, Kansas Poverty

Jefferson County, Kansas Poverty by Race

Name Total In Poverty Poverty Rate
White17,4361,3597.79%
Hispanic43410423.96%
Multiple4815611.64%
Native1142421.05%
Black6745.97%

8.30%

Overall Poverty Rate

7.16%

Male Poverty Rate

9.47%

Female Poverty Rate

Poverty in Jefferson County, Kansas

The race most likely to be in poverty in Jefferson County, Kansas is Hispanic, with 23.96% below the poverty level.

The race least likely to be in poverty in Jefferson County, Kansas is Black, with 5.97% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.57%. Among those working part-time, it was 10.52%, and for those that did not work, the poverty rate was 13.47%.

Jefferson County, Kansas Poverty Rate by Education

Name Poverty
Less Than High School12.59%
High School8.35%
Some College5.80%
Bachelors or Greater3.08%

Jefferson County, Kansas Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed22.86%
Male Unemployed19.72%
Female Employed3.94%
Male Employed2.60%

Jefferson County, Kansas Income

Jefferson County, Kansas Income by Household Type

Name Median Mean
Households$58,935$68,340
Families$72,686$77,555
Married Families$79,500$
Non Families$32,500$40,667

Jefferson County, Kansas Marital Status

Jefferson County, Kansas Marital Status

Marriage Rates

61.6%

Overall Marriage Rate

62.8%

Male Marriage Rate

60.3%

Female Marriage Rate

Jefferson County, Kansas Married by Age and Sex

Jefferson County, Kansas Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 45To54.

Jefferson County, Kansas Marital Status by Race


Data via US Census (2017 ACS 5-Year Survey): Table S1201

Jefferson County, Kansas Veterans

Jefferson County, Kansas Veterans by War

1,510

Number of Veterans

1,421

Male Veterans

89

Female Veterans

Name Veterans
Vietnam756
First Gulf War233
Korea174
Second Gulf War115
World War II45

Jefferson County, Kansas Veterans by Age

Name Veterans
65 to 74489
55 to 64417
75+342
35 to 54236
18 to 3426

Jefferson County, Kansas Veterans by Race

Name Veterans % of Total
White1,44310.38%
2 or More3210.74%
Black2524.51%
Hispanic186.12%
Indian88.60%
Other25.00%

Jefferson County, Kansas Veterans by Education

4.32%

Veteran Poverty Rate

25.17%

Veteran Disability Rate

Jefferson County, Kansas Employment Status

Jefferson County, Kansas Employment by Age

65.7%

Labor Force Participation

61.8%

Employment Rate

5.8%

Unemployment Rate

Jefferson County, Kansas Employment by Race

Jefferson County, Kansas Employment by Education

Population of Cities in Jefferson County, Kansas

City 2010 Census 2016 Estimated Growth Growth Rate
Valley Falls11921149-43-3.61%
Oskaloosa11131078-35-3.14%
Perry929906-23-2.48%
McLouth880847-33-3.75%
Meriden813783-30-3.69%
Ozawkie645629-16-2.48%
Nortonville637613-24-3.77%
Winchester551530-21-3.81%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990