Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/KY/COUNTY/GRAVES

Graves County, KY ZIP codes

There are 12 ZIP codes in Graves County, KY, in 12 towns, from 42027 to 42088. The largest are 42066 (Mayfield), 42051 (Hickory) and 42088 (Wingo). 1 more crosses into it from a neighbouring county: 42041.

The county seat is Mayfield.

ZIP codes
12
Partly in it
1 more
Towns
12
County seat
Mayfield
County FIPS
21083
Population
36,630
Median household income
$50,772
Land area
552 sq mi
Area code
364
Metro area
Mayfield

Graves County ZIP codes by town

Mayfield (county seat)
42066

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Graves County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Graves County.

Map of Graves County ZIP codes

The ZIP codes of Graves County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Graves County in numbers

About 36,630 people live in Graves County, in 14,139 households, the 29th most populous of Kentucky's 120 counties. The median household income is $50,772 a year, 20% below the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $147,800 (28% below the Kentucky median), and median gross rent is $775 a month. The median age is 40.4; 18.4% of adults 25 and over hold a bachelor's degree or higher (27.6% across Kentucky); the average commute takes 21 minutes.

Population36,630Graves36,630
Households14,139Graves14,139
Median age40.4Graves40.4Kentucky39.1US 38.9
Median household income$50,772Graves$50,772Kentucky$63,726US $80,734
Median home value$147,800Graves$147,800Kentucky$205,600US $332,700
Median gross rent$775Graves$775Kentucky$967US $1,413
Bachelor's degree or higher18.4%Graves18.4%Kentucky27.6%US 35.7%
Mean commute20.7 minGraves20.7 minKentucky24.0 minUS 26.4 min
Population density66 / sq miGraves66 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Graves County

Largest towns in Graves County
TownZIP codesPopulation
Mayfield 1 9,868
Hickory 1 2,114
Boaz 1 1,875
Melber 1 1,214
Wingo 1 606
Symsonia 1 473
Sedalia 1 334
Fancy Farm 1 326
Farmington 1 245
Water Valley 1 137
Lowes 1 111

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Graves County.

Not sure you are in Graves County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Graves County, with figures

ZIP codes in Graves County
ZIP City Type Population Median income Median home
42027 Boaz , KY Standard 1,875 $58,056 $194,200
42039 Fancy Farm , KY Standard 1,694 $70,726 $143,200
42040 Farmington , KY Standard 692 $51,141 $123,500
42051 Hickory , KY Standard 2,114 $76,000 $162,800
42061 Lowes , KY Standard 59 — —
42063 Lynnville , KY No street area — — —
42066 Mayfield , KY Standard 23,917 $48,664 $145,600
42069 Melber , KY Standard 1,214 $48,929 $208,500
42079 Sedalia , KY Standard 1,315 $59,375 $119,100
42082 Symsonia , KY Standard 1,803 $67,000 $223,200
42085 Water Valley , KY Standard 914 $57,679 $106,000
42088 Wingo , KY Standard 2,497 $52,745 $134,500

Cite this page

zipcodes.pro. “Graves County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ky/county/graves

Underlying data is public domain or openly licensed — sources, vintages and licences.