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/KS/COUNTY/BROWN

Brown County, KS ZIP codes

There are 8 ZIP codes in Brown County, KS, in 8 towns, from 66094 to 66532. The largest are 66434 (Hiawatha), 66439 (Horton) and 66424 (Everest). 1 more crosses into it from a neighbouring county: 66534.

The county seat is Hiawatha.

ZIP codes
8
Partly in it
1 more
Towns
8
County seat
Hiawatha
County FIPS
20013
State
Kansas
Population
9,343
Median household income
$62,233
Land area
571 sq mi

Brown County ZIP codes by town

Hiawatha (county seat)
66434

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 Brown County

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

Map of Brown County ZIP codes

6609466424664256643466439665156652766532

The ZIP codes of Brown 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.

Brown County in numbers

About 9,343 people live in Brown County, in 3,794 households, the 42nd most populous of Kansas's 105 counties. The median household income is $62,233 a year, 16% below the Kansas median of $74,275 (US: $80,734). The median owner-occupied home is valued at $118,100 (46% below the Kansas median), and median gross rent is $646 a month. The median age is 41.7; 19.6% of adults 25 and over hold a bachelor's degree or higher (35.6% across Kansas); the average commute takes 17 minutes.

Population9,343Brown9,343
Households3,794Brown3,794
Median age41.7Brown41.7Kansas37.4US 38.9
Median household income$62,233Brown$62,233Kansas$74,275US $80,734
Median home value$118,100Brown$118,100Kansas$217,200US $332,700
Median gross rent$646Brown$646Kansas$1,060US $1,413
Bachelor's degree or higher19.6%Brown19.6%Kansas35.6%US 35.7%
Mean commute17.4 minBrown17.4 minKansas19.7 minUS 26.4 min
Population density16 / sq miBrown16 / 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 Brown County

Largest towns in Brown County
TownZIP codesPopulation
Hiawatha 1 3,197
Horton 1 1,610
Everest 1 356
Fairview 1 342
Morrill 1 210
Robinson 1 154
White Cloud 1 117
Powhattan 1 74

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 Brown County.

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

Every ZIP code in Brown County, with figures

ZIP codes in Brown County
ZIP City Type Population Median income Median home
66094 White Cloud , KS Standard 437 $72,000 $140,600
66424 Everest , KS Standard 486 $58,553 $131,300
66425 Fairview , KS Standard 391 $61,094 $108,300
66434 Hiawatha , KS Standard 4,740 $76,613 $143,400
66439 Horton , KS Standard 2,578 $53,348 $90,800
66515 Morrill , KS Standard 362 $89,375 $98,500
66527 Powhattan , KS Standard 244 $60,750 $69,200
66532 Robinson , KS Standard 527 $76,875 $118,800

Cite this page

zipcodes.pro. “Brown County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ks/county/brown

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