Jefferson County, Kentucky Population 2023

795,530

Jefferson County, Kentucky's estimated 2023 population is 795,530 with a growth rate of 0.53% 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 741,096 and has seen a growth of 7.35% since that time.

Note: data after 2021 is projected based on recent change

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Year
Population
Growth
Growth Rate
2010741,096
2011745,2834,1870.56%
2012749,4704,1870.56%
2013753,6574,1870.56%
2014757,8444,1870.56%
2015762,0314,1870.55%
2016766,2184,1870.55%
2017770,4054,1870.55%
2018774,5924,1870.54%
2019778,7794,1870.54%
2020782,9694,1900.54%
2021787,1564,1870.53%
2022791,3434,1870.53%
2023795,5304,1870.53%
showing: 14 rows
2023 Growth Rate
0.53% (4,187)
County Website
Jefferson County
Founded
1780
County Seat
Louisville
2010 Population
741,096
Growth Since 2010
7.35% (54,434)

Jefferson County, Kentucky Population 2023

Population by Race

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Race
Population
Percentage (of total)
White538,43868.99%
Black or African American171,53921.98%
Two or more races35,9794.61%
Asian23,4173%
Other race9,8391.26%
Native American8520.11%
Native Hawaiian or Pacific Islander3850.05%
showing: 7 rows

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 2023

Jefferson County, Kentucky Median Age

38.4

Total

37

Male

39.7

Female

Jefferson County, Kentucky Adults

There are 606,872 adults, (126,088 of whom are seniors) in Jefferson County, Kentucky.

Jefferson County, Kentucky Age Dependency

62.3

Age Dependency Ratio

26.2

Old Age Dependency Ratio

36.1

Child Dependency Ratio

Jefferson County, Kentucky Sex Ratio

Female401,18051.4%
Male379,26948.6%

Jefferson County, Kentucky Population by Age

Jefferson County, Kentucky Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All323,2932.3761.638.4
Non Family131,9711.2348.751.3
Married129,5733.182.217.8
Female45,5443.2642.857.2
Male16,2053.175545
showing: 5 rows

3.06

Average Family Size

2.37

Average Household Size

61.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Jefferson County, Kentucky Households and Families

Male

Female

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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

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The highest rate of high school graduation is among white people with a rate of 82.21%.

The highest rate of bachelors degrees is among asian people with a rate of 49.23%.

Jefferson County, Kentucky Educational Attainment by Race

All

Male

Female

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$42,590

Average Earnings

$48,992

Average Male

$37,126

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

89.65% of Jefferson County, Kentucky residents speak only English, while 10.35% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.71% of the population.

Jefferson County, Kentucky Language

Jefferson County, Kentucky Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White502,51648,3309.62%
Black168,84241,82724.77%
Hispanic46,0948,61418.69%
Multiple35,2836,02517.08%
Asian23,2442,79612.03%
Other9,3571,24113.26%
Native81420024.57%
Islander38512532.47%
showing: 8 rows

13.74%

Overall Poverty Rate

12.4%

Male Poverty Rate

15%

Female Poverty Rate

Poverty in Jefferson County, Kentucky

The race most likely to be in poverty in Jefferson County, Kentucky is Islander, with 32.47% below the poverty level.

The race least likely to be in poverty in Jefferson County, Kentucky is White, with 9.62% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.26%. Among those working part-time, it was 17.03%, and for those that did not work, the poverty rate was 22.52%.

Jefferson County, Kentucky Poverty

rate

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Rate
Poverty
Less Than 9th Grade27.91%
High School14.99%
Some College10.51%
Bachelors or Greater3.91%
showing: 4 rows

Jefferson County, Kentucky Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed33.92%
Male Unemployed26.87%
Female Employed7.61%
Male Employed5.01%
showing: 4 rows

Jefferson County, Kentucky Poverty Rate by Employment Status and Sex

Jefferson County, Kentucky Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Jefferson County, Kentucky Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

43.8%

Overall Marriage Rate

46.0%

Male Marriage Rate

41.7%

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

42,442

Number of Veterans

38,363

Male Veterans

4,079

Female Veterans

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Jefferson County, Kentucky Veterans by War

count

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Jefferson County, Kentucky Veterans by Age

count

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Jefferson County, Kentucky Veterans by Race

Jefferson County, Kentucky Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.84%

Veteran Poverty Rate

30.67%

Veteran Disability Rate

Jefferson County, Kentucky Veterans by Education

LaborForceParticipation

66%

Labor Force Participation

62.4%

Employment Rate

5.3%

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

67.87%

Born in Jefferson County, Kentucky

93.47%

Native Born

8.68%

Foreign Born

4.81%

Non Citizen

3.87%

Naturalized

Place of Birth

93.47% of Jefferson County, Kentucky residents were born in the United States, with 67.87% having been born in Kentucky. 4.81% 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