Zip Code 42431
Madisonville, Kentucky — Hopkins County
📍 ZIP code 42431 is in Madisonville, Hopkins County, Kentucky.
ZIP code 42431 is located in Madisonville, Hopkins County, Kentucky. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 27,095. The area code for ZIP code 42431 is 270.
Quick Answer
Zip code 42431 is in Madisonville, Kentucky (Hopkins County). It has a population of 27,095, median household income of $57,529, and median home value of $151,800.
Population
27,095
Income
$57,529
Home Value
$151,800
Climate
89°F / 28°F
About Zip Code 42431
Zip code 42431 is located in Madisonville, Kentucky, within Hopkins County. Home to approximately 27,095 residents, this area sits at an elevation of 451 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 270.
The median household income is $57,529 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $151,800, and the cost of living index is 60 (40% below the national average of 100).
Summers average a high of 89°F while winters drop to 28°F. The area receives about 52 in of rain and 14 in of snow annually. The zip code covers 166.6 square miles of land area and 5.9 square miles of water.
Key Statistics
27,095
$57,529
$151,800
Eastern (EST/EDT)
270
451 ft
166.6 sq mi
38.3
12,569
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Compare With Nearby Zip Codes
| Metric | 42431 | 42410 | 42436 | 42440 | 42413 | 42344 |
|---|---|---|---|---|---|---|
| City | Madisonville, KY | Earlington, KY | Madisonville, KY | Mortons Gap, KY | Hanson, KY | Graham, KY |
| Population | 27,095 | 1,113 | 1,460 | 746 | 2,667 | 1,042 |
| Median Income | $57,529 | $34,904 | $84,412 | $38,750 | $87,778 | $35,341 |
| Home Value | $151,800 | $64,400 | $176,800 | $99,000 | $149,900 | $80,900 |
| Cost of Living | 60 | 60 | 66 | 60 | 81 | 60 |
| Median Age | 38.3 | 32.7 | 41.4 | 45.2 | 44.9 | 44.7 |
Cost of Living
100 = National Average. Madisonville's cost of living is 40% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.6x
Demographics
Zip code 42431 has a population of 27,095 people with a median age of 38.3. There are 12,569 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Madisonville (42431) population trend from 2010 to 2024
↓ -23.8%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
28°F
52 in
14 in
Madisonville experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 28°F. The area receives about 14 in of snow per year.
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Housing & Economy
Median Home Value
$151,800
Median Household Income
$57,529
With 12,569 housing units across 166.6 square miles, 42431 has a housing density of 75 units per square mile. The home price-to-income ratio is 2.6x.
Location & Geography
Latitude
37.3346°
Longitude
-87.4812°
Land Area
166.6 sq mi
Water Area
5.9 sq mi
Nearby Zip Codes
Zip codes closest to 42431 (Madisonville, KY) with distances:
All Zip Codes in Madisonville, KY
Other zip codes serving Madisonville:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 42431's $57,529. A way to compare Madisonville 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 42431 (Madisonville, 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 Madisonville, Kentucky?
Madisonville, Kentucky uses zip code 42431 along with 1 other zip codes.
What county is zip code 42431 in?
Zip code 42431 is located in Hopkins County, Kentucky.
What is the population of zip code 42431?
The population of zip code 42431 is 27,095 with a median age of 38.3.
Is 42431 in Madisonville, Kentucky?
Yes, zip code 42431 is in Madisonville, Hopkins County, Kentucky. The area code is 270.
Frequently Asked Questions
What city is zip code 42431 in?
Zip code 42431 is in Madisonville, Kentucky. It is part of Hopkins County and uses the Eastern (EST/EDT) timezone.
What is zip code 42431?
Zip code 42431 is a U.S. postal code in Madisonville, Kentucky (Hopkins County). It has a population of 27,095 and covers 166.6 square miles.
What is the population of zip code 42431?
The population of zip code 42431 (Madisonville, KY) is 27,095 with a median age of 38.3. There are approximately 12,569 housing units in this area.
What is the median income in zip code 42431?
The median household income in zip code 42431 (Madisonville, KY) is $57,529 per year. The cost of living index is 60 (100 = national average).
What is the average home price in zip code 42431?
The median home value in zip code 42431 (Madisonville, KY) is $151,800. The cost of living index is 60 compared to the national average of 100.
What county is zip code 42431 in?
Zip code 42431 is located in Hopkins County, Kentucky. The primary city is Madisonville.
What is the area code for zip code 42431?
Zip code 42431 in Madisonville, KY uses area code 270. It is located in the Eastern (EST/EDT) timezone.
Is zip code 42431 a good place to live?
Zip code 42431 (Madisonville, KY) has a cost of living index of 60 (100 = national average), a median household income of $57,529, and median home values of $151,800. The median age is 38.3. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 42431?
The cost of living index for zip code 42431 (Madisonville, KY) is 60, where 100 represents the national average. This area is below the national average. Median home value: $151,800.
What schools serve zip code 42431?
Zip code 42431 in Madisonville, Kentucky is served by the local school district of Hopkins 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.