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Kentucky ZIP Codes
Hardin County
White Mills, KY
42788
42788 ZIP Code — White Mills, KY
Hardin County, Kentucky
ZIP code 42788 is located in
White Mills ,
Kentucky ,
within Hardin County .
It covers approximately 7.60 square miles and serves a population of
227 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 270/364 .
About ZIP code 42788
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $216,000. Owner-occupancy is high at 88%, well above the national average.
Median household income is $50,972. The poverty rate of 7% is below the national average. 36% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is sales and office, with construction as the leading industry.
College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (21%) compared to national benchmarks.
Notable community characteristics include disability rates above the national average at 25%.
Overall, ZIP code 42788 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.
42788 ZIP code map
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Cities in ZIP code 42788
Below are the cities the US Postal Service accepts for ZIP code 42788. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
227
Population density
30 / sq mi
State FIPS
21
County FIPS
093
Geography
Land area
7.60 sq mi
Water area
0.30 sq mi
Latitude
37.5149
Longitude
-86.0264
Timezone
Eastern (ET)
Area code
270/364
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
66.4%
44.3%
47.9%
$50k – $100k
9.5%
32.6%
30.3%
$100k – $200k
24.1%
19.6%
17.6%
Over $200k
0.0%
3.5%
4.2%
Demographics & statistics
$50,972
Median household income
$216,000
Median home value
16.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 9 4.0%
18 and over 218 96.0%
65 and over 54 23.8%
Median age 47.3 years
Race & ethnicity
Black or African American
7.5%
Group Count %
White 201 88.5%
Black or African American 17 7.5%
Asian 9 4%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
66.4%
44.3%
47.9%
$50k – $100k
9.5%
32.6%
30.3%
$100k – $200k
24.1%
19.6%
17.6%
Over $200k
0.0%
3.5%
4.2%
Range % of households
$10k–$15k 12.1%
$15k–$25k 9.7%
$35k–$50k 16.9%
$50k–$75k 29.0%
$75k–$100k 8.1%
$100k–$150k 24.2%
Median income $50,972
Housing
Housing overview
Metric Value
Median home value $216,000
Median rent / month $0
Owner occupied 87.9%
Renter occupied 12.1%
Vacant 0.0%
Single-family detached 54.0%
Large apartment buildings 0.0%
Mobile homes 46.0%
Median rooms 7.0
Avg household size (owned) 1.94
Year built
Era %
2020 or later 0.0%
2010–2019 0.0%
2000–2009 35.5%
1990–1999 20.2%
1980–1989 0.0%
1970–1979 36.3%
1960–1969 0.0%
1950–1959 0.0%
1940–1949 0.0%
1939 or earlier 8.1%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 22.6%
3 bedrooms 77.4%
4 bedrooms 0.0%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 9.7%
2 vehicles 30.6%
3 or more 59.7%
Heating fuel
Fuel type %
Electricity 65.3%
Propane / LP gas 24.2%
Fuel oil 10.5%
Households & families
Household type Count %
Married-couple family 84 67.7%
Cohabiting couple 13 10.5%
Male householder, no spouse 15 12.1%
Female householder, no spouse 12 9.7%
Households with children under 18 10 8.1%
Households with seniors (65+) 45 36.3%
Average household size 1.83
Marital status
Status Male Female
Never married 10.7% 0.0%
Married 62.8% 87.6%
Separated 0.0% 0.0%
Widowed 12.4% 12.4%
Divorced 14.0% 0.0%
Education
Some college, no degree
41.3%
Graduate / professional
0.0%
Metric %
HS diploma or higher 95.4%
Bachelor's or higher 16.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 9 100.0%
High school 0 0.0%
College / grad school 0 0.0%
Employment
Industry of employment
Transportation & utilities
15.3%
Education & healthcare
11.7%
Professional & management
10.8%
Occupation
Category %
Management, business & arts 22.5%
Service 0.0%
Sales & office 32.4%
Natural resources & construction 29.7%
Production & transportation 15.3%
Employment type
Type %
Private sector 100.0%
Government 0.0%
Self-employed 0.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 73.9%
Carpool 0.0%
Public transit 15.3%
Walk 0.0%
Work from home 10.8%
Other means 0.0%
Avg commute (minutes) 0.0
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 36.3%
Retirement income 30.6%
Supplemental Security 10.5%
Cash public assistance 0.0%
Food stamps / SNAP 10.5%
Health indicators
Condition %
Obesity 38.3%
High blood pressure 39.7%
High cholesterol 39.0%
Diabetes 11.3%
Heart disease 7.4%
Stroke 3.2%
Asthma 11.0%
Arthritis 32.9%
Kidney disease 3.0%
Pulmonary disease 9.7%
Cancer 7.2%
Behavior / access %
Smoking 21.3%
Binge drinking 15.0%
No physical activity 27.6%
Less than 7 hrs sleep 35.4%
Depression 24.5%
Fair or poor health 18.0%
Poor mental health 16.6%
Poor physical health 13.0%
No health insurance 9.0%
Visited doctor (checkup) 77.6%
Visited dentist 59.5%
Cholesterol screening 91.5%
Teeth loss 15.4%
Veterans & disability
Veterans Count %
Civilian veterans 0 0.0%
Disability %
Any disability 24.7%
Under 18 0.0%
18–64 years 20.1%
65 and over 42.6%
Health insurance coverage
Type %
Private insurance 73.6%
Public insurance 38.3%
No insurance 7.5%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 227 100.0%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 218 96.0%
Born in same state 218 96.0%
Born in different state 89 39.2%
Foreign born 0 0.0%
Naturalized citizen 9 4.0%
Not a US citizen 9 100.0%
Ancestry
Ancestry Count %
French 41 18.1%
Arab 18 7.9%
Ancestry Count %
English 10 4.4%
Dutch 9 4%
Technology access
Metric % of households
Computer access 54.6%
Internet access 87.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 42788
What city is ZIP code 42788 in?
ZIP code 42788 is primarily assigned to White Mills, Kentucky.
What county is ZIP code 42788 in?
ZIP code 42788 falls within Hardin County, Kentucky.
Is ZIP code 42788 mostly owner-occupied?
88% of occupied units in ZIP code 42788 are owner-occupied, well above the national average.
Does ZIP code 42788 have a large retiree population?
36% of households in ZIP code 42788 receive Social Security income, suggesting a significant retiree or disability population.
What is the population of ZIP code 42788?
ZIP code 42788 has an estimated population of 227 residents, with a density of 30 people per square mile.
What is the median household income in ZIP code 42788?
The median household income in ZIP code 42788 is $50,972, below the national median of ~$75,000.
What timezone is ZIP code 42788 in?
ZIP code 42788 observes the EST timezone.
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