Woodbury County, Iowa ZIP codes
21 ZIP codes are in Woodbury County, plus 6 that cross in from neighboring counties. It's part of the Sioux City, IA-NE-SD metro area.
- ZIP codes
- 21
- Population in these ZIPs
- 97,439
- Avg. median income
- $74,100population-weighted
- Cities & towns
- 15
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Woodbury County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 51004 | Anthon | 858 | $43,882 | $190,600 |
| 51007 | Bronson | 691 | $117,125 | $287,000 |
| 51015 | Climbing Hill | 45 | $87,500 | $137,500 |
| 51016 | Correctionville | 1,080 | $51,875 | $170,700 |
| 51019 | Danbury | 448 | $75,000 | $197,300 |
| 51026 | Hornick | 910 | $80,500 | $241,400 |
| 51030 | Lawton | 1,468 | $86,167 | $338,500 |
| 51039 | Moville | 2,845 | $110,000 | $268,100 |
| 51044 | Oto | 165 | $90,417 | $168,100 |
| 51048 | Pierson | 435 | $83,158 | $167,900 |
| 51052 | Salix | 1,050 | $108,750 | $281,100 |
| 51054 | Sergeant Bluff | 5,583 | $119,716 | $360,500 |
| 51055 | Sloan | 1,346 | $72,143 | $242,300 |
| 51056 | Smithland | 346 | $103,313 | $164,900 |
| 51101 | Sioux City | 1,031 | $15,300 | $177,600 |
| 51102 PO Box | Sioux City | — | — | — |
| 51103 | Sioux City | 16,895 | $58,197 | $161,200 |
| 51104 | Sioux City | 23,197 | $75,362 | $226,800 |
| 51105 | Sioux City | 10,415 | $51,786 | $137,300 |
| 51106 | Sioux City | 28,592 | $78,434 | $222,300 |
| 51111 | Sioux City | 39 | — | — |
ZIP codes partly in Woodbury County
These ZIP codes are mostly in a neighboring county but cover part of Woodbury County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 51006 | Battle Creek | Ida County | 1,287 | $75,625 | $147,500 |
| 51018 | Cushing | Ida County | 542 | $60,833 | $314,900 |
| 51028 | Kingsley | Plymouth County | 2,191 | $78,000 | $255,000 |
| 51034 | Mapleton | Monona County | 1,674 | $66,375 | $172,200 |
| 51108 | Sioux City | Plymouth County | 5,960 | $81,205 | $252,600 |
| 51109 | Sioux City | Plymouth County | 3,606 | $79,034 | $175,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Woodbury County
Nearby counties
Frequently asked questions
How many ZIP codes are in Woodbury County, Iowa?
21 ZIP codes are mainly in Woodbury County, and 6 more ZIP codes from neighboring areas reach partly into it.
What cities are in Woodbury County?
ZIP codes in Woodbury County use the city names Anthon, Bronson, Climbing Hill, Correctionville, Danbury, Hornick, Lawton, Moville, Oto, Pierson, Salix and Sergeant Bluff and others.
What metro area is Woodbury County in?
Woodbury County is part of the Sioux City, IA-NE-SD metropolitan statistical area.