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/ANDERSON

Anderson County, KY ZIP codes

Anderson County, KY has one ZIP code: 40342.

The county seat is Lawrenceburg.

ZIP codes
1
Towns
1
County seat
Lawrenceburg
County FIPS
21005
Population
24,353
Median household income
$74,488
Land area
202 sq mi
Area code
502
Metro area
Frankfort

Anderson County ZIP codes by town

Lawrenceburg (county seat)
40342

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.

Map of Anderson County ZIP codes

40342

The ZIP codes of Anderson 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.

Anderson County in numbers

About 24,353 people live in Anderson County, in 9,653 households, the 48th most populous of Kentucky's 120 counties. The median household income is $74,488 a year, 17% above the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $225,100 (9% above the Kentucky median), and median gross rent is $927 a month. The median age is 41.7; 26.2% of adults 25 and over hold a bachelor's degree or higher (27.6% across Kentucky); the average commute takes 30 minutes.

Population24,353Anderson24,353
Households9,653Anderson9,653
Median age41.7Anderson41.7Kentucky39.1US 38.9
Median household income$74,488Anderson$74,488Kentucky$63,726US $80,734
Median home value$225,100Anderson$225,100Kentucky$205,600US $332,700
Median gross rent$927Anderson$927Kentucky$967US $1,413
Bachelor's degree or higher26.2%Anderson26.2%Kentucky27.6%US 35.7%
Mean commute30.4 minAnderson30.4 minKentucky24.0 minUS 26.4 min
Population density120 / sq miAnderson120 / 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.

Neighbouring counties

Counties that share a ZIP code with Anderson County.

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

Every ZIP code in Anderson County, with figures

ZIP codes in Anderson County
ZIP City Type Population Median income Median home
40342 Lawrenceburg , KY Standard 23,963 $74,408 $224,500

Cite this page

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

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