Sioux City, IA ZIP Codes, Coordinates & Counties
Sioux City, Iowa has 8 ZIP codes in Woodbury county. The approximate center of Sioux City is 42.512, -96.393. Sioux City has about 384,414 known street addresses.
ZIP codes in Sioux City, IA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 51101 | Woodbury | 42.494 | -96.394 |
| 51103 | Woodbury | 42.518 | -96.443 |
| 51104 | Woodbury | 42.535 | -96.404 |
| 51105 | Woodbury | 42.509 | -96.366 |
| 51106 | Woodbury | 42.466 | -96.321 |
| 51108 | Woodbury | 42.567 | -96.352 |
| 51109 | Woodbury | 42.595 | -96.479 |
| 51111 | Woodbury | 42.41 | -96.386 |
Counties Sioux City spans
Woodbury
Most common streets in Sioux City
Pierce, Jackson, Douglas, Jones, 4th, 5th, Hamilton, Virginia, 2nd, Military
Frequently asked questions
What ZIP codes are in Sioux City, IA?
Sioux City, Iowa has 8 ZIP codes, ranging from 51101 to 51111. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Sioux City, IA in?
Sioux City is in Woodbury county.
What are the latitude and longitude of Sioux City, IA?
The approximate center of Sioux City, Iowa is latitude 42.512, longitude -96.393. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Sioux City, IA have?
Sioux City has 8 ZIP codes.
How many addresses are in Sioux City, IA?
Sioux City, Iowa has about 384,414 known street addresses in the sthan.io US address database.
What are the most common streets in Sioux City, IA?
Some of the most common street names in Sioux City are Pierce, Jackson, Douglas, Jones, 4th, 5th.
What cities are near Sioux City, IA?
Cities near Sioux City include South Sioux City (4 mi), North Sioux City (6 mi), Dakota City (8 mi), Hinton (10 mi), Lawton (10 mi).
Cities near Sioux City
South Sioux City, NE (4 mi) North Sioux City, SD (6 mi) Dakota City, NE (8 mi) Hinton, IA (10 mi) Lawton, IA (10 mi) Sergeant Bluff, IA (10 mi) Jefferson, SD (11 mi) Jackson, NE (12 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database