40031 ZIP Code — La Grange, KY

Oldham County, Kentucky

ZIP code 40031 is located in La Grange, Kentucky, within Oldham County. It covers approximately 66.89 square miles and serves a population of 25,091 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 502.

About ZIP code 40031

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $293,400. Owner-occupancy is high at 79%, well above the national average.

Median household income is $90,652. The poverty rate of 7% is below the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

Educational attainment is near the national average, with 33% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

Overall, ZIP code 40031 reflects a community defined by high homeownership and a significant Social Security-dependent population.

25,091

population

66.89

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

40031 ZIP code map

Cities in ZIP code 40031

Below are the cities the US Postal Service accepts for ZIP code 40031. Using any city not on this list may result in mail delivery delays.

City	Status
La Grange	Acceptable
La Grange	Preferred

Nearby ZIP codes

40032 La Grange (1.6 mi) 40010 Buckner (4.9 mi) 40077 Westport (5 mi) 40055 Pendleton (5.2 mi) 40055 Pendleton (5.2 mi) 40014 Crestwood (6 mi) 40068 Smithfield (7 mi) 40026 Goshen (7.4 mi) 40070 Sulphur (9 mi) 47162 New Washington (9.5 mi) 40056 Pewee Valley (10 mi) 40059 Prospect (10.9 mi)

Demographics updated 05/2026

Population
Total population	25,091
Population density	375 / sq mi
State FIPS	21
County FIPS	185

Geography
Land area	66.89 sq mi
Water area	0.88 sq mi
Latitude	38.4284
Longitude	-85.3926
Timezone	Eastern (ET)
Area code	502

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.2%	23.9%	47.9%
$50k – $100k	30.3%	28.8%	30.3%
$100k – $200k	32.7%	33.8%	17.6%
Over $200k	4.8%	13.5%	4.2%

Demographics & statistics

25,091

Population

375

People per sq mi

39.6

Median age

$90,652

Median household income

$35,168

Per capita income

$293,400

Median home value

$1,076

Median monthly rent

78.7%

Home ownership

6.5%

Poverty rate

3.3%

Unemployment

6,610

Housing units

33.4%

Bachelor's or higher

Age distribution

Male Female

708

Under 5

552

840

5–9

656

824

10–14

644

864

15–19

674

761

20–24

594

2,085

25–34

1,628

2,093

35–44

1,634

2,023

45–54

1,580

947

55–59

740

819

60–64

640

1,386

65–74

1,082

624

75–84

487

116

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	5,078	20.2%
18 and over	20,013	79.8%
65 and over	3,785	15.1%
Median age	39.6 years

Race & ethnicity

White 85.1%

Black or African American 6.5%

Two or more races 4.1%

Hispanic or Latino 2.6%

Other race 1.2%

Asian 0.4%

American Indian / Alaska Native 0.1%

Group	Count	%
White	21,928	85.1%
Black or African American	1,662	6.5%
Two or more races	1,061	4.1%
Hispanic or Latino	672	2.6%
Other race	318	1.2%
Asian	93	0.4%
American Indian / Alaska Native	24	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.2%	23.9%	47.9%
$50k – $100k	30.3%	28.8%	30.3%
$100k – $200k	32.7%	33.8%	17.6%
Over $200k	4.8%	13.5%	4.2%

Under $10k 2.5%

$10k–$15k 1.8%

$15k–$25k 5.5%

$25k–$35k 5.8%

$35k–$50k 10.5%

$50k–$75k 16.0%

$75k–$100k 13.2%

$100k–$150k 20.2%

$150k–$200k 15.7%

$200k+ 8.7%

Range	% of households
Under $10k	2.5%
$10k–$15k	1.8%
$15k–$25k	5.5%
$25k–$35k	5.8%
$35k–$50k	10.5%
$50k–$75k	16.0%
$75k–$100k	13.2%
$100k–$150k	20.2%
$150k–$200k	15.7%
$200k+	8.7%
Median income	$90,652

Housing

Home values

Under $50k 5.1%

$50k–$100k 1.4%

$100k–$150k 5.4%

$150k–$200k 11.8%

$200k–$300k 28.1%

$300k–$500k 40.1%

$500k–$1M 7.5%

$1M+ 0.6%

Housing overview

Metric	Value
Median home value	$293,400
Median rent / month	$1,076
Owner occupied	78.7%
Renter occupied	21.3%
Vacant	4.3%
Single-family detached	79.4%
Large apartment buildings	1.6%
Mobile homes	3.5%
Median rooms	6.6
Avg household size (owned)	2.83

Year built

Era	%
2020 or later	1.1%
2010–2019	12.3%
2000–2009	22.8%
1990–1999	20.7%
1980–1989	16.5%
1970–1979	14.7%
1960–1969	2.3%
1950–1959	4.1%
1940–1949	2.1%
1939 or earlier	3.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	2.5%
2 bedrooms	17.0%
3 bedrooms	46.6%
4 bedrooms	26.9%
5+ bedrooms	6.3%

Vehicles per household

Vehicles	% of households
No vehicle	1.4%
1 vehicle	24.5%
2 vehicles	42.0%
3 or more	32.0%

Heating fuel

Fuel type	%
Utility gas	40.5%
Electricity	53.5%
Propane / LP gas	4.5%
Fuel oil	0.6%
Wood	0.5%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	4,956	62.3%
Cohabiting couple	459	5.8%
Male householder, no spouse	776	9.8%
Female householder, no spouse	1,758	22.1%
Households with children under 18	2,881	36.2%
Households with seniors (65+)	2,309	29.0%
Average household size	2.71

Marital status

Status	Male	Female
Never married	34.5%	20.9%
Married	47.0%	56.2%
Separated	2.1%	2.6%
Widowed	2.8%	8.8%
Divorced	13.6%	11.5%

Education

Less than 9th grade 3.1%

Some HS, no diploma 7.7%

HS graduate 25.2%

Some college, no degree 20.5%

Associate's degree 10.1%

Bachelor's degree 20.6%

Graduate / professional 12.9%

Metric	%
HS diploma or higher	89.2%
Bachelor's or higher	33.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	543	9.7%
Kindergarten	162	2.9%
Elementary school	2,328	41.7%
High school	1,245	22.3%
College / grad school	1,308	23.4%

Employment

Industry of employment

Education & healthcare 26.7%

Manufacturing 11.9%

Retail trade 11.3%

Professional & management 10.8%

Finance & real estate 9.0%

Arts, food & hospitality 8.5%

Transportation & utilities 5.4%

Construction 4.7%

Public administration 3.9%

Other services 3.3%

Information 2.3%

Wholesale trade 1.2%

Agriculture & mining 1.1%

Occupation

Category	%
Management, business & arts	41.7%
Service	16.0%
Sales & office	21.6%
Natural resources & construction	5.9%
Production & transportation	14.7%

Employment type

Type	%
Private sector	78.0%
Government	15.8%
Self-employed	5.3%
Unpaid family workers	0.8%

Commute

Method	%
Drive alone	76.4%
Carpool	11.8%
Public transit	0.0%
Walk	0.2%
Work from home	11.0%
Other means	0.6%
Avg commute (minutes)	25.8

Poverty

All people 6.5%

Under 18 years 9.8%

18 and over 5.5%

Married-couple families 3.1%

Female-led households 18.0%

Income support

Source	% of households
Social Security	31.5%
Retirement income	26.3%
Supplemental Security	4.0%
Cash public assistance	1.7%
Food stamps / SNAP	6.3%

Health indicators

Condition	%
Obesity	39.4%
High blood pressure	36.5%
High cholesterol	35.1%
Diabetes	9.8%
Heart disease	5.8%
Stroke	2.6%
Asthma	10.1%
Arthritis	25.5%
Kidney disease	2.4%
Pulmonary disease	7.4%
Cancer	5.7%

Behavior / access	%
Smoking	20.8%
Binge drinking	18.3%
No physical activity	25.9%
Less than 7 hrs sleep	37.4%
Depression	22.4%
Fair or poor health	15.7%
Poor mental health	16.4%
Poor physical health	11.3%
No health insurance	10.5%
Visited doctor (checkup)	74.9%
Visited dentist	60.4%
Cholesterol screening	90.2%
Teeth loss	13.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,570	7.8%

Disability	%
Any disability	13.1%
Under 18	3.8%
18–64 years	12.7%
65 and over	28.6%

Health insurance coverage

Type	%
Private insurance	76.7%
Public insurance	31.4%
No insurance	4.6%
Uninsured under 19	3.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	23,831	95.0%
Spanish	356	1.5%
Other Indo-European	241	1.0%
Asian & Pacific Islander	82	0.3%
Other languages	22	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	24,292	96.8%
Born in same state	24,071	95.9%
Born in different state	15,544	62.0%
Foreign born	221	0.9%
Naturalized citizen	799	3.2%
Not a US citizen	481	60.2%

Ancestry

Ancestry	Count	%
French	4,064	16.2%
Italian	3,706	14.8%
Arab	3,070	12.2%
Polish	175	0.7%
English	109	0.4%

Ancestry	Count	%
Irish	100	0.4%
Dutch	76	0.3%
German	51	0.2%
Norwegian	28	0.1%

Technology access

Metric	% of households
Computer access	31.7%
Internet access	95.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 40031

What city is ZIP code 40031 in?

ZIP code 40031 is primarily assigned to La Grange, Kentucky.

What county is ZIP code 40031 in?

ZIP code 40031 falls within Oldham County, Kentucky.

What is the population of ZIP code 40031?

ZIP code 40031 has an estimated population of 25,091 residents, with a density of 375 people per square mile.

What is the typical home value in ZIP code 40031?

The median home value in ZIP code 40031 is $293,400.

What is the median household income in ZIP code 40031?

The median household income in ZIP code 40031 is $90,652, above the national median of ~$75,000.

What timezone is ZIP code 40031 in?

ZIP code 40031 observes the EST timezone.