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Kentucky ZIP Codes
Jefferson County
Louisville, KY
40242
40242 ZIP Code — Louisville, KY
Jefferson County, Kentucky
ZIP code 40242 is located in
Louisville ,
Kentucky ,
within Jefferson County .
It covers approximately 2.86 square miles and serves a population of
11,544 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 502 .
About ZIP code 40242
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $277,000. Owner-occupancy sits near the national average at 69%.
Median household income is $78,994. The poverty rate of 7% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 20 minutes is near the national average.
Educational attainment is high — 46% of residents hold a bachelor's degree or higher, well above the national average of 33%.
40242 ZIP code map
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Cities in ZIP code 40242
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
11,544
Population density
4,036 / sq mi
State FIPS
21
County FIPS
111
Geography
Land area
2.86 sq mi
Water area
0.01 sq mi
Latitude
38.2782
Longitude
-85.5940
Timezone
Eastern (ET)
Area code
502
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
29.9%
42.4%
47.9%
$50k – $100k
34.4%
31.3%
30.3%
$100k – $200k
29.2%
20.3%
17.6%
Over $200k
6.6%
6.0%
4.2%
Demographics & statistics
$78,994
Median household income
$277,000
Median home value
$1,212
Median monthly rent
45.6%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 3,004 26.0%
18 and over 8,540 74.0%
65 and over 1,982 17.2%
Median age 35.9 years
Race & ethnicity
Black or African American
14.5%
Native Hawaiian / Pacific Islander
0.2%
American Indian / Alaska Native
0.1%
Group Count %
White 8,732 74.1%
Black or African American 1,707 14.5%
Asian 545 4.6%
Two or more races 404 3.4%
Hispanic or Latino 244 2.1%
Other race 122 1%
Native Hawaiian / Pacific Islander 28 0.2%
American Indian / Alaska Native 6 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
29.9%
42.4%
47.9%
$50k – $100k
34.4%
31.3%
30.3%
$100k – $200k
29.2%
20.3%
17.6%
Over $200k
6.6%
6.0%
4.2%
Range % of households
Under $10k 4.3%
$10k–$15k 1.0%
$15k–$25k 3.2%
$25k–$35k 8.5%
$35k–$50k 7.3%
$50k–$75k 22.4%
$75k–$100k 15.6%
$100k–$150k 18.5%
$150k–$200k 10.2%
$200k+ 9.0%
Median income $78,994
Housing
Housing overview
Metric Value
Median home value $277,000
Median rent / month $1,212
Owner occupied 68.9%
Renter occupied 31.1%
Vacant 3.7%
Single-family detached 70.6%
Large apartment buildings 2.1%
Mobile homes 0.0%
Median rooms 6.4
Avg household size (owned) 2.39
Year built
Era %
2020 or later 0.7%
2010–2019 0.7%
2000–2009 5.8%
1990–1999 9.9%
1980–1989 22.4%
1970–1979 23.7%
1960–1969 22.6%
1950–1959 11.2%
1940–1949 0.7%
1939 or earlier 2.2%
Bedrooms
Size % of units
No bedroom (studio) 0.7%
1 bedroom 6.5%
2 bedrooms 22.1%
3 bedrooms 39.9%
4 bedrooms 27.4%
5+ bedrooms 3.3%
Vehicles per household
Vehicles % of households
No vehicle 5.4%
1 vehicle 37.0%
2 vehicles 43.2%
3 or more 14.4%
Heating fuel
Fuel type %
Utility gas 62.7%
Electricity 36.3%
Propane / LP gas 0.8%
Wood 0.2%
Households & families
Household type Count %
Married-couple family 1,981 40.9%
Cohabiting couple 199 4.1%
Male householder, no spouse 857 17.7%
Female householder, no spouse 1,805 37.3%
Households with children under 18 1,367 28.2%
Households with seniors (65+) 1,436 29.7%
Average household size 2.38
Marital status
Status Male Female
Never married 33.9% 31.4%
Married 54.0% 42.6%
Separated 0.4% 1.6%
Widowed 3.7% 7.9%
Divorced 8.0% 16.6%
Education
Some college, no degree
21.0%
Graduate / professional
18.9%
Metric %
HS diploma or higher 93.9%
Bachelor's or higher 45.6%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 191 7.4%
Kindergarten 255 9.8%
Elementary school 1,078 41.5%
High school 581 22.4%
College / grad school 493 19.0%
Employment
Industry of employment
Education & healthcare
24.8%
Professional & management
9.8%
Finance & real estate
9.6%
Arts, food & hospitality
8.2%
Transportation & utilities
6.6%
Public administration
2.9%
Occupation
Category %
Management, business & arts 44.7%
Service 12.8%
Sales & office 24.4%
Natural resources & construction 5.2%
Production & transportation 12.9%
Employment type
Type %
Private sector 84.1%
Government 11.2%
Self-employed 4.6%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 77.1%
Carpool 7.7%
Public transit 0.3%
Walk 1.2%
Work from home 13.1%
Other means 0.5%
Avg commute (minutes) 19.8
Poverty
Married-couple families
0.5%
Female-led households
25.7%
Income support
Source % of households
Social Security 29.5%
Retirement income 22.6%
Supplemental Security 3.1%
Cash public assistance 1.6%
Food stamps / SNAP 4.6%
Health indicators
Condition %
Obesity 31.7%
High blood pressure 35.9%
High cholesterol 35.0%
Diabetes 9.3%
Heart disease 6.0%
Stroke 2.6%
Asthma 10.0%
Arthritis 25.9%
Kidney disease 2.6%
Pulmonary disease 6.8%
Cancer 6.8%
Behavior / access %
Smoking 14.1%
Binge drinking 16.7%
No physical activity 21.7%
Less than 7 hrs sleep 31.6%
Depression 23.7%
Fair or poor health 13.0%
Poor mental health 15.3%
Poor physical health 10.1%
No health insurance 7.9%
Visited doctor (checkup) 76.2%
Visited dentist 69.7%
Cholesterol screening 91.7%
Teeth loss 9.3%
Veterans & disability
Veterans Count %
Civilian veterans 515 6.0%
Disability %
Any disability 10.2%
Under 18 3.1%
18–64 years 8.0%
65 and over 28.0%
Health insurance coverage
Type %
Private insurance 71.6%
Public insurance 35.6%
No insurance 7.6%
Uninsured under 19 2.2%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 10,511 91.1%
Spanish 418 4.0%
Other Indo-European 67 0.6%
Asian & Pacific Islander 74 0.7%
Other languages 83 0.8%
Place of birth & citizenship
Origin Count %
Native born (US) 10,405 90.1%
Born in same state 10,204 88.4%
Born in different state 6,758 58.5%
Foreign born 201 1.7%
Naturalized citizen 1,139 9.9%
Not a US citizen 371 32.6%
Ancestry
Ancestry Count %
French 1,648 14.3%
Italian 1,540 13.3%
Arab 989 8.6%
English 180 1.6%
Polish 84 0.7%
Ancestry Count %
Irish 37 0.3%
German 31 0.3%
Dutch 24 0.2%
Norwegian 8 0.1%
Technology access
Metric % of households
Computer access 41.9%
Internet access 96.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 40242
What city is ZIP code 40242 in?
ZIP code 40242 is primarily assigned to Louisville, Kentucky.
What county is ZIP code 40242 in?
ZIP code 40242 falls within Jefferson County, Kentucky.
How educated is the population of ZIP code 40242?
46% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the population of ZIP code 40242?
ZIP code 40242 has an estimated population of 11,544 residents, with a density of 4,036 people per square mile.
What is the typical home value in ZIP code 40242?
The median home value in ZIP code 40242 is $277,000.
What is the median household income in ZIP code 40242?
The median household income in ZIP code 40242 is $78,994, above the national median of ~$75,000.
What timezone is ZIP code 40242 in?
ZIP code 40242 observes the EST timezone.
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