ZIP code · Mayfield · Kentucky · United States
ZIP code 42066 — Mayfield
ZIP code 42066 serves Mayfield, Kentucky.
- Postal code
- 42066Single source Value from one source, not cross-checked.
- City
- Mayfield
- County
- Graves FIPS 21083
- State
- Kentucky
- Country
- United States
- Coordinates
- 36.7327, -88.6506 — precision precise (locality)
View on OpenStreetMap - Population
- 23,635 (ZCTA, ACS 5-year)
- Population density
- 109 / sq mi
- Land area
- 217.3 sq mi (562.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $48,118
- Per-capita income
- $30,260
- Median age
- 38.9
- Households
- 9,343
- Housing units
- 10,793
- Median home value
- $135,100
- Median gross rent
- $695 / month
- Congressional district
- KY-1 (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
Tools: compare 42066 with another ZIP · ZIPs within 25 miles · distance from 42066
Map of ZIP code 42066
Climate — monthly normals
Warmest month Aug (avg high 90°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 50 | 61 | 71 | 79 | 86 | 90 | 90 | 84 | 73 | 60 | 50 |
| Avg low °F | 23 | 26 | 34 | 44 | 53 | 62 | 65 | 63 | 55 | 43 | 34 | 26 |
NOAA 1991–2020 climate normals from the nearest station: BENTON (19.4 mi) · NOAA NCEI
Places in ZIP 42066
- 9 schools
- 1 hospitals & clinics
- 2 pharmacies
- 4 supermarkets
- 26 restaurants & cafés
- 2 parks
- 6 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 2 post offices
- 36 places of worship
- 5 banks
- 16 gas stations
- 1 EV charging stations
- 2 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page