ZIP codes
8
Sioux City, IA Demographics & ZIP Codes
Sioux City, Iowa demographics and median household income by ZIP code (in Plymouth County, Woodbury County) — 8 ZIP codes — population 89,537 — median income $58,257 — avg. home value $145,900. Compare income, housing, and population across ZIP codes on US5.
Population
89,537
Median household income (avg.)
$58,257
78% of U.S. median
Average home value
$145,900
42% of U.S. median
Average rent
$730
63% of U.S. median
Median age (avg.)
35.8
Sioux City demographics
Sioux City, Iowa covers 8 ZIP codes spanning Plymouth County and Woodbury County, with a combined ZIP-area population of about 89,537.
Across ZIP codes with age data, the average median age is about 35.8 years.
Median household income in Sioux City
The average median household income across ZIP codes in Sioux City, Iowa is about $58,257 — about 21% below the IA ZIP average ($74,194), and about 22% below the U.S. median ($75,149).
Among ZIPs with income data, 51108 is near the top at about $78,333, while 51101 is near the bottom at about $18,103.
Housing in Sioux City
For housing in Sioux City, Iowa, the average median home value is about $145,900 and the average median rent is about $730.
The most populous ZIP in this set is 51106 (about 28,381 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Sioux City
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 51106 | Sioux | Woodbury County | IA | 28,381 | $74,486 | $186,300 |
| 51104 | Sioux | Woodbury County | IA | 22,792 | $74,984 | $193,000 |
| 51103 | Sioux | Woodbury County | IA | 17,145 | $57,212 | $124,400 |
| 51105 | Sioux | Woodbury County | IA | 10,726 | $46,940 | $84,700 |
| 51108 | Sioux | Plymouth County | IA | 5,637 | $78,333 | $166,600 |
| 51109 | Sioux | Plymouth County | IA | 3,731 | $70,750 | $120,400 |
| 51101 | Sioux | Woodbury County | IA | 1,077 | $18,103 | — |
| 51111 | Sioux | Woodbury County | IA | 48 | $45,250 | — |
Frequently asked questions
What are the demographics of Sioux City?
Sioux City, Iowa has a combined ZIP-area population of about 89,537 across 8 ZIP codes (primarily Plymouth County, Woodbury County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Sioux City?
The average median household income across ZIP codes in Sioux City, Iowa is about $58,257, about 21% below the state ZIP average ($74,194), and about 22% below the U.S. median ($75,149). Average median home value is about $145,900. Among ZIPs with data, 51108 is near the top ($78,333) and 51101 is near the bottom ($18,103).
How many ZIP codes are in Sioux City?
Sioux City, Iowa includes 8 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Sioux City?
This page lists ZIP codes in Sioux City, Iowa with population, median household income, and home value. Select a ZIP for a full demographics profile.