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/HAMILTON

Hamilton County, IN ZIP codes

There are 18 ZIP codes in Hamilton County, IN, in 9 towns, from 46030 to 46290. The largest are 46032 (Carmel), 46074 (Westfield) and 46037 (Fishers).

The county seat is Noblesville.

ZIP codes
18
Towns
9
County seat
Noblesville
County FIPS
18057
State
Indiana
Population
365,056
Median household income
$121,530
Land area
394 sq mi
Area codes
317, 463

Hamilton County ZIP codes by town

Noblesville (county seat)
46060, 46061, 46062

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 Hamilton County ZIP codes

460304603146032460334603446037460384606046061460624606946074460824608546262462804628846290

The ZIP codes of Hamilton 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.

Hamilton County in numbers

About 365,056 people live in Hamilton County, in 137,252 households, the 4th most populous of Indiana's 92 counties. The median household income is $121,530 a year, 69% above the Indiana median of $71,957 (US: $80,734). The median owner-occupied home is valued at $405,500 (86% above the Indiana median), and median gross rent is $1,574 a month. The median age is 38.4; 61.9% of adults 25 and over hold a bachelor's degree or higher (29.5% across Indiana); the average commute takes 26 minutes.

Population365,056Hamilton365,056
Households137,252Hamilton137,252
Median age38.4Hamilton38.4Indiana38.1US 38.9
Median household income$121,530Hamilton$121,530Indiana$71,957US $80,734
Median home value$405,500Hamilton$405,500Indiana$218,200US $332,700
Median gross rent$1,574Hamilton$1,574Indiana$1,062US $1,413
Bachelor's degree or higher61.9%Hamilton61.9%Indiana29.5%US 35.7%
Mean commute25.9 minHamilton25.9 minIndiana24.1 minUS 26.4 min
Population density926 / sq miHamilton926 / 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 Hamilton County

Largest towns in Hamilton County
TownZIP codesPopulation
Indianapolis 4 885,860
Fishers 3 102,337
Carmel 3 101,651
Noblesville 3 73,362
Westfield 1 54,677
Cicero 1 5,509
Sheridan 1 3,205
Arcadia 1 1,556
Atlanta 1 816

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 Hamilton County.

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

Every ZIP code in Hamilton County, with figures

ZIP codes in Hamilton County
ZIP City Type Population Median income Median home
46030 Arcadia , IN Standard 3,035 $90,536 $246,000
46031 Atlanta , IN Standard 2,456 $76,438 $227,900
46032 Carmel , IN Standard 51,515 $132,085 $496,800
46033 Carmel , IN Standard 40,881 $153,143 $487,100
46034 Cicero , IN Standard 7,531 $91,466 $311,100
46037 Fishers , IN Standard 48,713 $141,810 $434,200
46038 Fishers , IN Standard 43,754 $106,886 $333,200
46060 Noblesville , IN Standard 47,610 $91,918 $321,100
46061 Noblesville , IN No street area — — —
46062 Noblesville , IN Standard 41,060 $120,100 $382,500
46069 Sheridan , IN Standard 7,504 $76,990 $291,900
46074 Westfield , IN Standard 48,901 $126,724 $437,100
46082 Carmel , IN No street area — — —
46085 Fishers , IN No street area — — —
46262 Indianapolis , IN No street area — — —
46280 Indianapolis , IN Standard 7,514 $91,152 $324,400
46288 Indianapolis , IN No street area — — —
46290 Indianapolis , IN Standard 81 — $570,700

Cite this page

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

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