Zip Code 42066
Mayfield, Kentucky — Graves County
📍 ZIP code 42066 is in Mayfield, Graves County, Kentucky.
ZIP code 42066 is located in Mayfield, Graves County, Kentucky. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 23,635. The area code for ZIP code 42066 is 270.
Quick Answer
Zip code 42066 is in Mayfield, Kentucky (Graves County). It has a population of 23,635, median household income of $48,118, and median home value of $135,100.
Population
23,635
Income
$48,118
Home Value
$135,100
Climate
90°F / 23°F
About Zip Code 42066
Zip code 42066 is located in Mayfield, Kentucky, within Graves County. Home to approximately 23,635 residents, this area sits at an elevation of 473 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 270.
The median household income is $48,118 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $135,100, and the cost of living index is 60 (40% below the national average of 100).
Summers average a high of 90°F while winters drop to 23°F. The area receives about 53 in of rain and 1 in of snow annually. The zip code covers 216.8 square miles of land area and 2.4 square miles of water.
Key Statistics
23,635
$48,118
$135,100
Eastern (EST/EDT)
270
473 ft
216.8 sq mi
38.9
10,793
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Compare With Nearby Zip Codes
| Metric | 42066 | 42051 | 42088 | 42040 | 42039 | 42054 |
|---|---|---|---|---|---|---|
| City | Mayfield, KY | Hickory, KY | Wingo, KY | Farmington, KY | Fancy Farm, KY | Kirksey, KY |
| Population | 23,635 | 2,000 | 2,507 | 983 | 1,491 | 793 |
| Median Income | $48,118 | $72,614 | $53,906 | $61,458 | $63,250 | $57,065 |
| Home Value | $135,100 | $148,400 | $127,900 | $183,200 | $125,400 | $154,200 |
| Cost of Living | 60 | 72 | 60 | 60 | 65 | 64 |
| Median Age | 38.9 | 51.9 | 44.7 | 42.4 | 42.2 | 41.7 |
Cost of Living
100 = National Average. Mayfield's cost of living is 40% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.8x
Demographics
Zip code 42066 has a population of 23,635 people with a median age of 38.9. There are 10,793 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Mayfield (42066) population trend from 2010 to 2024
↓ -26.8%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
90°F
23°F
53 in
1 in
Mayfield experiences hot summers with average highs around 90°F. Winters are cool with lows averaging 23°F. The area receives about 1 in of snow per year.
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Housing & Economy
Median Home Value
$135,100
Median Household Income
$48,118
With 10,793 housing units across 216.8 square miles, 42066 has a housing density of 50 units per square mile. The home price-to-income ratio is 2.8x.
Location & Geography
Latitude
36.7325°
Longitude
-88.6399°
Land Area
216.8 sq mi
Water Area
2.4 sq mi
Nearby Zip Codes
Zip codes closest to 42066 (Mayfield, KY) with distances:
All Zip Codes in Mayfield, KY
Other zip codes serving Mayfield:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 42066's $48,118. A way to compare Mayfield 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 42066 (Mayfield, 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 Mayfield, Kentucky?
Mayfield, Kentucky uses zip code 42066 along with 1 other zip codes.
What county is zip code 42066 in?
Zip code 42066 is located in Graves County, Kentucky.
What is the population of zip code 42066?
The population of zip code 42066 is 23,635 with a median age of 38.9.
Is 42066 in Mayfield, Kentucky?
Yes, zip code 42066 is in Mayfield, Graves County, Kentucky. The area code is 270.
Frequently Asked Questions
What city is zip code 42066 in?
Zip code 42066 is in Mayfield, Kentucky. It is part of Graves County and uses the Eastern (EST/EDT) timezone.
What is zip code 42066?
Zip code 42066 is a U.S. postal code in Mayfield, Kentucky (Graves County). It has a population of 23,635 and covers 216.8 square miles.
What is the population of zip code 42066?
The population of zip code 42066 (Mayfield, KY) is 23,635 with a median age of 38.9. There are approximately 10,793 housing units in this area.
What is the median income in zip code 42066?
The median household income in zip code 42066 (Mayfield, KY) is $48,118 per year. The cost of living index is 60 (100 = national average).
What is the average home price in zip code 42066?
The median home value in zip code 42066 (Mayfield, KY) is $135,100. The cost of living index is 60 compared to the national average of 100.
What county is zip code 42066 in?
Zip code 42066 is located in Graves County, Kentucky. The primary city is Mayfield.
What is the area code for zip code 42066?
Zip code 42066 in Mayfield, KY uses area code 270. It is located in the Eastern (EST/EDT) timezone.
Is zip code 42066 a good place to live?
Zip code 42066 (Mayfield, KY) has a cost of living index of 60 (100 = national average), a median household income of $48,118, and median home values of $135,100. The median age is 38.9. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 42066?
The cost of living index for zip code 42066 (Mayfield, KY) is 60, where 100 represents the national average. This area is below the national average. Median home value: $135,100.
What schools serve zip code 42066?
Zip code 42066 in Mayfield, Kentucky is served by the local school district of Graves 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.