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/WOODBURY

Woodbury County, IA ZIP codes

There are 21 ZIP codes in Woodbury County, IA, in 15 towns, from 51004 to 51111. The largest are 51106 (Sioux City), 51104 (Sioux City) and 51103 (Sioux City).

The county seat is Sioux City.

ZIP codes
21
Towns
15
County seat
Sioux City
County FIPS
19193
State
Iowa
Population
106,247
Median household income
$73,658
Land area
873 sq mi
Area code
712
Metro area
Sioux City

Woodbury County ZIP codes by town

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 Woodbury County ZIP codes

510045100751015510165101951026510305103951044510485105251054510555105651101511025110351104511055110651111

The ZIP codes of Woodbury 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.

Woodbury County in numbers

About 106,247 people live in Woodbury County, in 40,699 households, the 7th most populous of Iowa's 99 counties. The median household income is $73,658 a year, about the same as the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $183,200 (12% below the Iowa median), and median gross rent is $981 a month. The median age is 36.1; 24.3% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 18 minutes.

Population106,247Woodbury106,247
Households40,699Woodbury40,699
Median age36.1Woodbury36.1Iowa38.6US 38.9
Median household income$73,658Woodbury$73,658Iowa$75,059US $80,734
Median home value$183,200Woodbury$183,200Iowa$208,000US $332,700
Median gross rent$981Woodbury$981Iowa$972US $1,413
Bachelor's degree or higher24.3%Woodbury24.3%Iowa31.4%US 35.7%
Mean commute18.1 minWoodbury18.1 minIowa19.8 minUS 26.4 min
Population density122 / sq miWoodbury122 / 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 Woodbury County

Largest towns in Woodbury County
TownZIP codesPopulation
Sioux City 7 86,101
Sergeant Bluff 1 5,171
Moville 1 1,670
Sloan 1 1,018
Lawton 1 790
Correctionville 1 761
Anthon 1 514
Salix 1 402
Hornick 1 340
Bronson 1 312
Pierson 1 302
Danbury 1 283
Smithland 1 137
Oto 1 68
Climbing Hill 1 45

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 Woodbury County.

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

Every ZIP code in Woodbury County, with figures

ZIP codes in Woodbury County
ZIP City Type Population Median income Median home
51004 Anthon , IA Standard 858 $43,882 $114,600
51007 Bronson , IA Standard 691 $117,125 $241,000
51015 Climbing Hill , IA Standard 45 $87,500 $137,500
51016 Correctionville , IA Standard 1,080 $51,875 $89,400
51019 Danbury , IA Standard 448 $75,000 $105,800
51026 Hornick , IA Standard 910 $80,500 $211,400
51030 Lawton , IA Standard 1,468 $86,167 $271,000
51039 Moville , IA Standard 2,845 $110,000 $268,200
51044 Oto , IA Standard 165 $90,417 $83,800
51048 Pierson , IA Standard 435 $83,158 $103,100
51052 Salix , IA Standard 1,050 $108,750 $281,100
51054 Sergeant Bluff , IA Standard 5,583 $119,716 $301,900
51055 Sloan , IA Standard 1,346 $72,143 $218,300
51056 Smithland , IA Standard 346 $103,313 $157,400
51101 Sioux City , IA Standard 1,031 $15,300 —
51102 Sioux City , IA No street area — — —
51103 Sioux City , IA Standard 16,895 $58,197 $142,900
51104 Sioux City , IA Standard 23,197 $75,362 $211,100
51105 Sioux City , IA Standard 10,415 $51,786 $96,200
51106 Sioux City , IA Standard 28,592 $78,434 $200,200
51111 Sioux City , IA Standard 39 — —

Cite this page

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

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