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/MILLS

Mills County, IA ZIP codes

There are 7 ZIP codes in Mills County, IA, in 7 towns, from 51534 to 51571. The largest are 51534 (Glenwood), 51551 (Malvern) and 51561 (Pacific Junction). 1 more crosses into it from a neighbouring county: 51533.

The county seat is Glenwood.

ZIP codes
7
Partly in it
1 more
Towns
7
County seat
Glenwood
County FIPS
19129
State
Iowa
Population
14,568
Median household income
$90,753
Land area
437 sq mi
Metro area
Omaha

Mills County ZIP codes by town

Glenwood (county seat)
51534

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 Mills County

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

Map of Mills County ZIP codes

51534515405154151551515545156151571

The ZIP codes of Mills 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.

Mills County in numbers

About 14,568 people live in Mills County, in 5,394 households, the 53rd most populous of Iowa's 99 counties. The median household income is $90,753 a year, 21% above the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $237,800 (14% above the Iowa median), and median gross rent is $959 a month. The median age is 42.1; 31.0% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 26 minutes.

Population14,568Mills14,568
Households5,394Mills5,394
Median age42.1Mills42.1Iowa38.6US 38.9
Median household income$90,753Mills$90,753Iowa$75,059US $80,734
Median home value$237,800Mills$237,800Iowa$208,000US $332,700
Median gross rent$959Mills$959Iowa$972US $1,413
Bachelor's degree or higher31.0%Mills31.0%Iowa31.4%US 35.7%
Mean commute25.6 minMills25.6 minIowa19.8 minUS 26.4 min
Population density33 / sq miMills33 / 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 Mills County

Largest towns in Mills County
TownZIP codesPopulation
Glenwood 1 5,144
Malvern 1 1,323
Silver City 1 504
Hastings 1 164
Pacific Junction 1 150
Henderson 1 143
Mineola 1 110

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 Mills County.

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

Every ZIP code in Mills County, with figures

ZIP codes in Mills County
ZIP City Type Population Median income Median home
51534 Glenwood , IA Standard 8,874 $93,646 $246,600
51540 Hastings , IA Standard 372 $84,375 $217,700
51541 Henderson , IA Standard 273 $91,875 $163,600
51551 Malvern , IA Standard 1,842 $85,469 $212,400
51554 Mineola , IA Standard 194 $102,692 $392,300
51561 Pacific Junction , IA Standard 1,039 $113,421 $388,800
51571 Silver City , IA Standard 902 $95,250 $221,400

Cite this page

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

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