Sioux City, Iowa ZIP codes
What is the ZIP code for Sioux City, IA?
9 ZIP codes, 51101 to 51111
8 for street addresses · 1 PO Box only
Sioux City is in Woodbury County, Iowa. USPS uses 9 ZIP codes for Sioux City, 8 of them for street addresses. About 89,735 people live in Sioux City ZIP codes; the most populated is 51106 with 28,592 residents. The city is in the Central Time zone and uses area codes 712, 402, 531 and 605.
| City | Sioux City, IA |
|---|---|
| State | Iowa |
| County | Woodbury County |
| ZIP codes | 9 |
| Population (ZIP areas) | about 89,735 |
| Time zone | Central Time · now |
| Area codes | 712, 402, 531, 605 |
All Sioux City ZIP codes
| ZIP code | Type | Population | Median income |
|---|---|---|---|
| 51101 | Standard | 1,031 | $15,300 |
| 51102 | PO Box only | – | – |
| 51103 | Standard | 16,895 | $58,197 |
| 51104 | Standard | 23,197 | $75,362 |
| 51105 | Standard | 10,415 | $51,786 |
| 51106 | Standard | 28,592 | $78,434 |
| 51108 | Standard | 5,960 | $81,205 |
| 51109 | Standard | 3,606 | $79,034 |
| 51111 | Standard | 39 | – |
Population and income: U.S. Census Bureau, American Community Survey 5-year estimates. PO Box and single-organization ZIP codes have no residents.
Cities near Sioux City
- South Sioux City, NE 2.4 mi
- North Sioux City, SD 5.9 mi
- Sergeant Bluff, IA 6.9 mi
- Dakota City, NE 8.5 mi
- Hinton, IA 8.8 mi
- Lawton, IA 9.1 mi
- Jackson, NE 9.5 mi
- Bronson, IA 11.2 mi
- Jefferson, SD 11.7 mi
- Homer, NE 11.9 mi
Questions
- What is the ZIP code for Sioux City, IA?
- Sioux City has 9 ZIP codes: 51101, 51102, 51103, 51104, 51105 and 51106 and 3 more. The right one depends on the street address.
- How many ZIP codes does Sioux City have?
- 9: 8 standard ZIP codes for street addresses, 1 for PO Boxes only.
- Which Sioux City ZIP code has the most people?
- 51106, with about 28,592 residents, followed by 51104 (23,197).
- What county is Sioux City, IA in?
- Sioux City ZIP codes are in Woodbury County.
- What area code is Sioux City, IA?
- Sioux City uses area codes 712, 402, 531 and 605.