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/IN/COUNTY/JOHNSON

Johnson County, IN ZIP codes

There are 7 ZIP codes in Johnson County, IN, in 6 towns, from 46106 to 46184. The largest are 46143 (Greenwood), 46142 (Greenwood) and 46131 (Franklin). 2 more cross into it from neighbouring counties: 46124 and 46160.

The county seat is Franklin.

ZIP codes
7
Partly in it
2 more
Towns
6
County seat
Franklin
County FIPS
18081
State
Indiana
Population
166,315
Median household income
$90,454
Land area
320 sq mi
Area codes
317, 463

Johnson County ZIP codes by town

Franklin (county seat)
46131

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 Johnson County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Johnson County.

Map of Johnson County ZIP codes

46106461314614246143461624618146184

The ZIP codes of Johnson 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.

Johnson County in numbers

About 166,315 people live in Johnson County, in 62,554 households, the 11th most populous of Indiana's 92 counties. The median household income is $90,454 a year, 26% above the Indiana median of $71,957 (US: $80,734). The median owner-occupied home is valued at $284,600 (30% above the Indiana median), and median gross rent is $1,271 a month. The median age is 38.0; 34.7% of adults 25 and over hold a bachelor's degree or higher (29.5% across Indiana); the average commute takes 26 minutes.

Population166,315Johnson166,315
Households62,554Johnson62,554
Median age38.0Johnson38.0Indiana38.1US 38.9
Median household income$90,454Johnson$90,454Indiana$71,957US $80,734
Median home value$284,600Johnson$284,600Indiana$218,200US $332,700
Median gross rent$1,271Johnson$1,271Indiana$1,062US $1,413
Bachelor's degree or higher34.7%Johnson34.7%Indiana29.5%US 35.7%
Mean commute26.4 minJohnson26.4 minIndiana24.1 minUS 26.4 min
Population density519 / sq miJohnson519 / 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 Johnson County

Largest towns in Johnson County
TownZIP codesPopulation
Greenwood 2 66,029
Franklin 1 26,168
Bargersville 1 10,752
Whiteland 1 5,173
Trafalgar 1 1,469
Needham 1 227

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 Johnson County.

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

Every ZIP code in Johnson County, with figures

ZIP codes in Johnson County
ZIP City Type Population Median income Median home
46106 Bargersville , IN Standard 10,159 $120,072 $471,300
46131 Franklin , IN Standard 34,647 $85,076 $247,700
46142 Greenwood , IN Standard 34,348 $89,001 $287,000
46143 Greenwood , IN Standard 61,803 $91,496 $318,300
46162 Needham , IN Standard 227 $117,969 $475,000
46181 Trafalgar , IN Standard 4,964 $91,337 $314,300
46184 Whiteland , IN Standard 13,304 $99,865 $232,500

Cite this page

zipcodes.pro. “Johnson County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/in/county/johnson

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