Zip Code 40031
La Grange, Kentucky — Oldham County
📍 ZIP code 40031 is in La Grange, Oldham County, Kentucky.
ZIP code 40031 is located in La Grange, Oldham County, Kentucky. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 25,697. The area code for ZIP code 40031 is 502.
Quick Answer
Zip code 40031 is in La Grange, Kentucky (Oldham County). It has a population of 25,697, median household income of $96,682, and median home value of $316,300.
Population
25,697
Income
$96,682
Home Value
$316,300
Climate
88°F / 23°F
About Zip Code 40031
Zip code 40031 is located in La Grange, Kentucky, within Oldham County. Home to approximately 25,697 residents, this area sits at an elevation of 810 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 502.
The median household income is $96,682 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $316,300, and the cost of living index is 111 (11% above the national average of 100).
Summers average a high of 88°F while winters drop to 23°F. The area receives about 53 in of rain and 11 in of snow annually. The zip code covers 66.7 square miles of land area and 0.9 square miles of water.
Key Statistics
25,697
$96,682
$316,300
Eastern (EST/EDT)
502
810 ft
66.7 sq mi
39.6
8,507
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Compare With Nearby Zip Codes
| Metric | 40031 | 40010 | 40077 | 40055 | 40014 | 40026 |
|---|---|---|---|---|---|---|
| City | La Grange, KY | Buckner, KY | La Grange, KY | Pendleton, KY | Crestwood, KY | Goshen, KY |
| Population | 25,697 | 660 | 597 | 2,386 | 23,039 | 6,192 |
| Median Income | $96,682 | $156,736 | $61,912 | $83,401 | $118,750 | $131,897 |
| Home Value | $316,300 | $486,400 | $197,700 | $193,900 | $381,500 | $425,600 |
| Cost of Living | 111 | 169 | 87 | 90 | 141 | 157 |
| Median Age | 39.6 | 35.4 | 42.6 | 43.7 | 40 | 38 |
Cost of Living
100 = National Average. La Grange's cost of living is 11% above the national average.
vs. State Avg
Above
Affordability
Moderate
Income-to-Home
3.3x
Demographics
Zip code 40031 has a population of 25,697 people with a median age of 39.6. There are 8,507 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
La Grange (40031) population trend from 2010 to 2024
↓ -4.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
88°F
23°F
53 in
11 in
La Grange experiences warm summers with average highs around 88°F. Winters are cool with lows averaging 23°F. The area receives about 11 in of snow per year.
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Housing & Economy
Median Home Value
$316,300
Median Household Income
$96,682
With 8,507 housing units across 66.7 square miles, 40031 has a housing density of 128 units per square mile. The home price-to-income ratio is 3.3x.
Location & Geography
Latitude
38.4294°
Longitude
-85.4008°
Land Area
66.7 sq mi
Water Area
0.9 sq mi
Nearby Zip Codes
Zip codes closest to 40031 (La Grange, KY) with distances:
All Zip Codes in La Grange, KY
Other zip codes serving La Grange:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 40031's $96,682. A way to compare La Grange to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 40031 (La Grange, KY). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is La Grange, Kentucky?
La Grange, Kentucky uses zip code 40031 along with 1 other zip codes.
What county is zip code 40031 in?
Zip code 40031 is located in Oldham County, Kentucky.
What is the population of zip code 40031?
The population of zip code 40031 is 25,697 with a median age of 39.6.
Is 40031 in La Grange, Kentucky?
Yes, zip code 40031 is in La Grange, Oldham County, Kentucky. The area code is 502.
Frequently Asked Questions
What city is zip code 40031 in?
Zip code 40031 is in La Grange, Kentucky. It is part of Oldham County and uses the Eastern (EST/EDT) timezone.
What is zip code 40031?
Zip code 40031 is a U.S. postal code in La Grange, Kentucky (Oldham County). It has a population of 25,697 and covers 66.7 square miles.
What is the population of zip code 40031?
The population of zip code 40031 (La Grange, KY) is 25,697 with a median age of 39.6. There are approximately 8,507 housing units in this area.
What is the median income in zip code 40031?
The median household income in zip code 40031 (La Grange, KY) is $96,682 per year. The cost of living index is 111 (100 = national average).
What is the average home price in zip code 40031?
The median home value in zip code 40031 (La Grange, KY) is $316,300. The cost of living index is 111 compared to the national average of 100.
What county is zip code 40031 in?
Zip code 40031 is located in Oldham County, Kentucky. The primary city is La Grange.
What is the area code for zip code 40031?
Zip code 40031 in La Grange, KY uses area code 502. It is located in the Eastern (EST/EDT) timezone.
Is zip code 40031 a good place to live?
Zip code 40031 (La Grange, KY) has a cost of living index of 111 (100 = national average), a median household income of $96,682, and median home values of $316,300. The median age is 39.6. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 40031?
The cost of living index for zip code 40031 (La Grange, KY) is 111, where 100 represents the national average. This area is above the national average. Median home value: $316,300.
What schools serve zip code 40031?
Zip code 40031 in La Grange, Kentucky is served by the local school district of Oldham County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.