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 — METRO/43580-SIOUX-CITY

Sioux City, IA-NE-SD

ZIP codes
30
CBSA code
43580
Type
Metropolitan statistical area
States
IA, NE and SD
Population
144,682
Combined area
Sioux City-Le Mars, IA-NE-SD

Metro areas are defined by the Office of Management and Budget as whole counties, so every ZIP code in a member county is listed here.

Sioux City in numbers

About 144,682 people live in the Sioux City metropolitan area. The median household income is $75,192 a year (US: $80,734). The median owner-occupied home is valued at $193,100, and median gross rent is $1,002 a month.

Population144,682Sioux City144,682
Median household income$75,192Sioux City$75,192US $80,734
Median home value$193,100Sioux City$193,100US $332,700
Median gross rent$1,002Sioux City$1,002US $1,413

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.

Its 3 counties

Counties in Sioux City, IA-NE-SD
CountyZIP codesPopulationMedian income
Woodbury County, IA 21 106,247 $73,658
Dakota County, NE 5 21,354 $70,329
Union County, SD 4 17,081 $89,636

ZIP codes in Sioux City

ZIP codes in Sioux City, IA-NE-SD
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 — —
57001 Alcester , SD Standard 1,540 $69,531 $177,400
57025 Elk Point , SD Standard 3,120 $94,839 $237,900
57038 Jefferson , SD Standard 1,796 $106,250 $332,300
57049 North Sioux City , SD Standard 7,962 $93,134 $432,100
68030 Homer , NE Standard 671 $76,442 $188,700
68731 Dakota City , NE Standard 3,469 $79,924 $205,600
68741 Hubbard , NE Standard 585 $79,583 $214,200
68743 Jackson , NE Standard 814 $71,667 $208,200
68776 South Sioux City , NE Standard 15,373 $68,750 $179,800

Cite this page

zipcodes.pro. “Sioux City, IA-NE-SD.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/metro/43580-sioux-city

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