Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/IA/COUNTY/HANCOCK

Hancock County, IA ZIP codes

There are 9 ZIP codes in Hancock County, IA, in 9 towns, from 50423 to 50484. The largest are 50438 (Garner), 50423 (Britt) and 50447 (Kanawha). 1 more crosses into it from a neighbouring county: 50436.

The county seat is Garner.

ZIP codes
9
Partly in it
1 more
Towns
9
County seat
Garner
County FIPS
19081
State
Iowa
Population
10,671
Median household income
$70,601
Land area
571 sq mi

Hancock County ZIP codes by town

Garner (county seat)
50438

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 Hancock County

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

Map of Hancock County ZIP codes

504235043050432504385043950447504495045750484

The ZIP codes of Hancock 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.

Hancock County in numbers

About 10,671 people live in Hancock County, in 4,673 households, the 69th most populous of Iowa's 99 counties. The median household income is $70,601 a year, 6% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $141,400 (32% below the Iowa median), and median gross rent is $736 a month. The median age is 44.6; 20.5% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 19 minutes.

Population10,671Hancock10,671
Households4,673Hancock4,673
Median age44.6Hancock44.6Iowa38.6US 38.9
Median household income$70,601Hancock$70,601Iowa$75,059US $80,734
Median home value$141,400Hancock$141,400Iowa$208,000US $332,700
Median gross rent$736Hancock$736Iowa$972US $1,413
Bachelor's degree or higher20.5%Hancock20.5%Iowa31.4%US 35.7%
Mean commute19.1 minHancock19.1 minIowa19.8 minUS 26.4 min
Population density19 / sq miHancock19 / 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 Hancock County

Largest towns in Hancock County
TownZIP codesPopulation
Garner 1 3,049
Britt 1 1,882
Kanawha 1 756
Klemme 1 544
Crystal Lake 1 283
Goodell 1 268
Meservey 1 262
Corwith 1 249
Woden 1 219

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 Hancock County.

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

Every ZIP code in Hancock County, with figures

ZIP codes in Hancock County
ZIP City Type Population Median income Median home
50423 Britt , IA Standard 2,291 $73,151 $118,900
50430 Corwith , IA Standard 520 $59,265 $75,700
50432 Crystal Lake , IA Standard 283 $66,875 $100,300
50438 Garner , IA Standard 3,995 $70,350 $197,600
50439 Goodell , IA Standard 454 $94,167 $80,000
50447 Kanawha , IA Standard 1,145 $76,019 $86,800
50449 Klemme , IA Standard 785 $59,524 $94,800
50457 Meservey , IA Standard 463 $47,250 $90,800
50484 Woden , IA Standard 411 $65,583 $101,000

Cite this page

zipcodes.pro. “Hancock County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ia/county/hancock

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