COUNTY · 1990 CENSUS

Jefferson County

Kentucky · 664,937 residents · 380.83 sq mi

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Part of the Louisville/Jefferson County metro government metro area

The short version

Jefferson County has lower-than-average household income, with a median household income of $27,092. Population has declined 4% since 2000. Median home value is $56,300.

At a glance

Lower income

below the US median

US median: $30,130

Mid-age

median age 34.2

US median: 33.0

Average education

19% hold a bachelor's degree

US average: 20%

More affordable

home values down 26%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

664,937

−4%vs 2000

vs 693,604 in 2000

1990 – 2025

Population density

1,746 / sq mi

−4%vs 2000

vs 1,821 / sq mi in 2000

US average: 221

Median age

34.2

−7%vs 2000

vs 36.7 in 2000

US average: 33.0

Population, 1990 – 2024

2024783K

Section 02

Income & economy

Median household income

$27,092

−10%inflation adjusted, since 2000

vs $39,457 in 2000

US average: $30,130

1990 – 2024

Per capita income

$14,067

−37%vs 2000

vs $22,352 in 2000

US average: $14,340

Poverty rate

13.7%

+1.4 ptsvs 2000

vs 12.4% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$56,300

−26%inflation adjusted, since 2000

vs $100,800 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$346

−8%inflation adjusted, since 2000

vs $494 in 2000

US average: $450

Owner-occupied

64.5%

−0.4 ptsvs 2000

vs 64.9% in 2000

35.5% rent

Afford Score

2.1

−19%vs 2000

vs 2.6 in 2000

1990 – 2024

RELATED:See current rent listings in Jefferson County on RentDataNow

Section 04

Race & ethnicity

2000

White, non-Hispanic76.4%(530,056)

Black18.7%(130,003)

Hispanic / Latino1.8%(12,370)

Asian1.4%(9,562)

Other0%

Diversity Score44.9%(311,314)

1990

White, non-Hispanic81.9%(544,401)

Black17%(113,280)

Hispanic / Latino0.6%(3,732)

Asian0.7%(4,849)

Other0.4%(2,407)

Diversity Score38.5%(256,294)

Diversity Score

−14%vs 2000

vs 45 in 2000

1990 – 2024

Section 05

Education

Bachelor's degree or higher

19.3%

−5.5 ptsvs 2000

vs 24.8% in 2000

US average: 20.3%

High school or higher

74.1%

−7.7 ptsvs 2000

vs 81.8% in 2000

US average: 75.2%

Graduate degree

7.5%

−2.1 ptsvs 2000

vs 9.6% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

19.3 min

+48%vs 2000

vs 13.1 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Jefferson County

Head to head

Compare Jefferson County to nearby counties

JEFFERSON COUNTY VS

Bullitt County

Income$80,558+197%

Home value$247,200+339%

Population86,454−89%

SEE FULL COMPARISON →

JEFFERSON COUNTY VS

Floyd County

Income$79,704+194%

Home value$251,000+346%

Population82,153−90%

SEE FULL COMPARISON →

JEFFERSON COUNTY VS

Oldham County

Income$122,497+352%

Home value$393,100+598%

Population70,986−91%

SEE FULL COMPARISON →

JEFFERSON COUNTY VS

Clark County

Income$74,214+174%

Home value$222,900+296%

Population130,451−84%

SEE FULL COMPARISON →

Frequently asked

How many people live in Jefferson County, Kentucky?

Jefferson County, Kentucky has about 664,937 residents according to the 1990 Census.

What is the median household income in Jefferson County, Kentucky?

The typical household in Jefferson County, Kentucky earns about $27,092 a year. Half of households make more than that, and half make less.

Is Jefferson County, Kentucky expensive?

In Jefferson County, Kentucky, the median home is worth about $56,300, and the typical rent is about $346 a month.

How educated are people in Jefferson County, Kentucky?

About 19.3% of adults age 25 and over in Jefferson County, Kentucky hold a bachelor's degree or higher.

What is the poverty rate in Jefferson County, Kentucky?

About 13.7% of people in Jefferson County, Kentucky live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →