Jefferson County, Kentucky Population 2024

771,193

Jefferson County, Kentucky's estimated 2024 population is 771,193 with a growth rate of -0.12% in the past year according to the most recent United States census data. Jefferson County, Kentucky is the largest county in Kentucky. The 2010 population was 742,096 and has seen a growth of 3.92% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029766,438-951-0.12%
2028767,389-951-0.12%
2027768,340-951-0.12%
2026769,291-951-0.12%
2025770,242-951-0.12%
2024771,193-951-0.12%
2023772,144-951-0.12%
2022773,095-4,156-0.53%
2021777,251-5,594-0.71%
2020782,84515,0601.96%
2019767,785-921-0.12%
2018768,706-1,677-0.22%
2017770,3832,6130.34%
2016767,7702,4480.32%
2015765,3223,2840.43%
2014762,0382,6110.34%
2013759,4277,6251.01%
2012751,8025,3440.72%
2011746,4584,3620.59%
2010742,09600%
1990664,937-20,067-2.93%
1980685,004-10,051-1.45%
1970695,05584,10813.77%
1960610,947126,33226.07%
1950484,61599,22325.75%
1940385,39230,0428.45%
1930355,35068,98124.09%
1920286,36923,4498.92%
1910262,92030,37113.06%
1900232,54943,95123.3%
1890188,59842,58829.17%
1880146,01027,05722.75%
1870118,95329,54933.05%
186089,40429,57349.43%
185059,83123,48564.62%
184036,34612,36751.57%
183023,9793,21115.46%
182020,7687,36955%
181013,3994,64553.06%
18008,7543,98983.71%
17904,765-761,673-99.38%
2024 Growth Rate
-0.12% (-951)
County Website
Jefferson County
2020 Population
782,845
Area
381 mi²
Density
2024 people/mi²
Growth Since 2020
-1.49% (-11,652)
Founded
1780

Population by Race

Race
Population
Percentage (of total)
White526,21567.53%
Black or African American171,52722.01%
Two or more races45,4615.83%
Asian23,2332.98%
Other race11,7251.5%
Native American6970.09%
Native Hawaiian or Pacific Islander3740.05%

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Jefferson County, Kentucky Population by Race

Jefferson County, Kentucky Population Pyramid 2024

Jefferson County, Kentucky Median Age

38.5

Total

37.1

Male

39.9

Female

Jefferson County, Kentucky Adults

There are 608,210 adults, (130,328 of whom are seniors) in Jefferson County, Kentucky.

Jefferson County, Kentucky Age Dependency

63.1

Age Dependency Ratio

27.3

Old Age Dependency Ratio

35.8

Child Dependency Ratio

Jefferson County, Kentucky Sex Ratio

Female399,80151.31%
Male379,43148.69%

Jefferson County, Kentucky Population by Age

Jefferson County, Kentucky Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All327,2112.3461.838.2
Non Family135,5541.2348.751.3
Married129,4463.0782.817.2
Female45,9943.2443.456.6
Male16,2173.1354.945.1

3.03

Average Family Size

2.34

Average Household Size

61.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Jefferson County, Kentucky Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade32,4886.01%
Associates Degree44,8238.29%
Bachelors Degree115,39221.34%
Graduate Degree79,83914.77%
High School Graduate139,21325.75%
Less Than 9th Grade14,5622.69%
Some College114,30721.14%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Jefferson County, Kentucky Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White379,013354,070153,227
Black106,45694,13921,489
Hispanic27,17321,0027,129
2+ Races23,22819,4876,932
Asian15,20412,8178,994
Other Race5,4764,1521,437
Native American46638595
Islander20714328

The highest rate of high school graduation is among white people with a rate of 93.42%.

The highest rate of bachelors degrees is among asian people with a rate of 59.16%.

Jefferson County, Kentucky Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$58,536$68,980$50,861
Graduate Degree$76,036$86,032$67,773
High School Graduate$34,830$40,094$28,887
Less Than 9th Grade$26,938$30,908$21,633
Overall$46,131$52,695$40,559
Some College$41,579$48,561$36,234

$46,131

Average Earnings

$52,695

Average Male

$40,559

Average Female

Jefferson County, Kentucky Earnings by Educational Attainment

Jefferson County, Kentucky Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Jefferson County, Kentucky Language

89.38% of Jefferson County, Kentucky residents speak only English, while 10.62% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.88% of the population.

Jefferson County, Kentucky Language

Jefferson County, Kentucky Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White496,38848,5339.78%
Black168,74643,20525.6%
Hispanic48,4379,89320.42%
Multiple44,6567,79217.45%
Asian23,0822,42210.49%
Other11,3961,98717.44%
Native65215824.23%
Islander37415541.44%

14.13%

Overall Poverty Rate

12.73%

Male Poverty Rate

15.45%

Female Poverty Rate

Poverty in Jefferson County, Kentucky

The race most likely to be in poverty in Jefferson County, Kentucky is Islander, with 41.44% below the poverty level.

The race least likely to be in poverty in Jefferson County, Kentucky is White, with 9.78% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.55%. Among those working part-time, it was 17.23%, and for those that did not work, the poverty rate was 23.09%.

Jefferson County, Kentucky Poverty

rate

Rate
Poverty
Less Than 9th Grade29.78%
High School15.83%
Some College10.25%
Bachelors or Greater4.05%

Jefferson County, Kentucky Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed37.67%
Male Unemployed28.41%
Female Employed7.66%
Male Employed5.14%

Jefferson County, Kentucky Poverty Rate by Employment Status and Sex

Jefferson County, Kentucky Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$86,214$115,174
Households$66,296$93,367
Married Families$109,904$140,785
Non Families$43,115$59,229

mean

median

Income by Household Type

Jefferson County, Kentucky Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

43.4%

Overall Marriage Rate

45.6%

Male Marriage Rate

41.3%

Female Marriage Rate

Jefferson County, Kentucky Married by Age and Sex

male

female

Jefferson County, Kentucky 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 35-44.

Jefferson County, Kentucky Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Jefferson County, Kentucky Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

40,446

Number of Veterans

36,701

Male Veterans

3,745

Female Veterans

War
Veterans
Vietnam13,630
First Gulf War10,051
Second Gulf War7,377
Korea2,419
World War II1,091

Jefferson County, Kentucky Veterans by War

count

Age Group
Veterans
65 to 7410,522
75+9,509
35 to 549,391
55 to 648,745
18 to 342,279

Jefferson County, Kentucky Veterans by Age

count

Name
Veterans
% of Total
White29,3006.8%
Black9,0927.36%
2+ Races1,6115.73%
Hispanic9242.89%
Asian2711.6%
Other Race1261.81%
Native American376.62%
Islander94.07%

Jefferson County, Kentucky Veterans by Race

Jefferson County, Kentucky Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.3%

Veteran Poverty Rate

30.96%

Veteran Disability Rate

Jefferson County, Kentucky Veterans by Education

LaborForceParticipation

65.9%

Labor Force Participation

62.4%

Employment Rate

5.1%

Unemployment Rate

Jefferson County, Kentucky Employment by Age

LaborForceParticipation

Jefferson County, Kentucky Employment by Race

LaborForceParticipation

Jefferson County, Kentucky 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

66.18%

Born in Jefferson County, Kentucky

91.38%

Native Born

8.62%

Foreign Born

4.78%

Non Citizen

3.84%

Naturalized

Place of Birth

91.38% of Jefferson County, Kentucky residents were born in the United States, with 66.18% having been born in Kentucky. 4.78% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Jefferson County, Kentucky Place of Birth

Sources