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/NC/COUNTY/FRANKLIN

Franklin County, NC ZIP codes

Franklin County, NC has 5 ZIP codes, in 5 towns: 27549, 27596, 27525, 27816 and 27508. 1 more crosses into it from a neighbouring county: 27597.

The county seat is Louisburg.

ZIP codes
5
Partly in it
1 more
Towns
5
County seat
Louisburg
County FIPS
37069
Population
74,386
Median household income
$74,240
Land area
492 sq mi
Metro area
Raleigh-Cary

Franklin County ZIP codes by town

Louisburg (county seat)
27549

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 Franklin County

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

Map of Franklin County ZIP codes

2750827525275492759627816

The ZIP codes of Franklin 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.

Franklin County in numbers

About 74,386 people live in Franklin County, in 28,529 households, the 37th most populous of North Carolina's 100 counties. The median household income is $74,240 a year, about the same as the North Carolina median of $72,388 (US: $80,734). The median owner-occupied home is valued at $284,300 (about the same as the North Carolina median), and median gross rent is $1,083 a month. The median age is 41.0; 27.0% of adults 25 and over hold a bachelor's degree or higher (35.7% across North Carolina); the average commute takes 33 minutes.

Population74,386Franklin74,386
Households28,529Franklin28,529
Median age41.0Franklin41.0North Carolina39.1US 38.9
Median household income$74,240Franklin$74,240North Carolina$72,388US $80,734
Median home value$284,300Franklin$284,300North Carolina$288,900US $332,700
Median gross rent$1,083Franklin$1,083North Carolina$1,228US $1,413
Bachelor's degree or higher27.0%Franklin27.0%North Carolina35.7%US 35.7%
Mean commute33.3 minFranklin33.3 minNorth Carolina25.1 minUS 26.4 min
Population density151 / sq miFranklin151 / 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 Franklin County

Largest towns in Franklin County
TownZIP codesPopulation
Louisburg 1 3,263
Youngsville 1 3,011
Franklinton 1 2,645
Bunn 1 466
Castalia 1 247

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 Franklin County.

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

Every ZIP code in Franklin County, with figures

ZIP codes in Franklin County
ZIP City Type Population Median income Median home
27508 Bunn , NC Standard 2,362 $50,368 $258,600
27525 Franklinton , NC Standard 17,110 $73,036 $284,300
27549 Louisburg , NC Standard 25,543 $67,879 $220,600
27596 Youngsville , NC Standard 22,232 $95,940 $377,600
27816 Castalia , NC Standard 3,019 $33,718 $141,700

Cite this page

zipcodes.pro. “Franklin County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nc/county/franklin

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