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 — CITY/KY/HARTFORD

Hartford ZIP code, Kentucky

The ZIP code for Hartford, KY is 42347, and its area codes are 270 and 364.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
2,649
Area codes
270, 364

Mail addressed to Hartford uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Hartford in numbers

About 2,649 people live in Hartford, in 975 households. The median household income is $61,445 a year, 4% below the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $106,900 (48% below the Kentucky median), and median gross rent is $543 a month. The median age is 37.4; 19.7% of adults 25 and over hold a bachelor's degree or higher (27.6% across Kentucky); the average commute takes 19 minutes.

Population2,649Hartford2,649
Households975Hartford975
Median age37.4Hartford37.4Kentucky39.1US 38.9
Median household income$61,445Hartford$61,445Kentucky$63,726US $80,734
Median home value$106,900Hartford$106,900Kentucky$205,600US $332,700
Median gross rent$543Hartford$543Kentucky$967US $1,413
Bachelor's degree or higher19.7%Hartford19.7%Kentucky27.6%US 35.7%
Mean commute18.9 minHartford18.9 minKentucky24.0 minUS 26.4 min
Population density934 / sq miHartford934 / sq mi

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

ZIP codes addressed as Hartford

ZIP codes with the USPS city name Hartford
ZIP City Type Population Median income Median home
42347 Hartford , KY Standard 5,829 $60,900 $134,500

Other ZIP codes overlapping Hartford

These ZIP codes cover part of Hartford but are addressed as somewhere else.

ZIP codes overlapping Hartford
ZIP City Type Population Median income Median home
42320 Beaver Dam , KY Standard 9,128 $54,730 $150,200

Map of Hartford ZIP codes

42347

The ZIP codes of Hartford, KY, 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.

Towns near Hartford

The nearest larger towns are Beaver Dam (3,524 people, 3.5 mi), Central City (5,707 people, 17 mi) and Masonville (2,887 people, 18 mi).

Towns near Hartford
TownPopulationDistance
Beaver Dam 3,524 3.5 mi
Central City 5,707 17.0 mi
Masonville 2,887 17.6 mi
Greenville 4,410 23.1 mi
Owensboro 60,302 24.4 mi
Thruston 2,581 24.5 mi
Sorgho 2,960 26.9 mi

More nearby: every ZIP code in Ohio County · Kentucky ZIP codes

Cite this page

zipcodes.pro. “Hartford, KY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ky/hartford

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