ZIP Code 51111 is located in Sioux City Iowa. Portions of 51111 are also in Sergeant Bluff and Woodbury Township. 51111 is entirely within Woodbury County. Regionally, it is located in the Sioux City Area.
| ZIP Code Name | Sioux City |
| Primary County | Woodbury County |
| ZIP Code Type | Standard |
| Population (2022) | 124 |
| Area Code(s) | 712 |
| Current Time | CDT |
51111 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Iowa. The majority race/ethnicity residing in 51111 is White. The current unemployment level in 51111 is 3.0%.
| Population | 124 |
| Population Growth Rate | -45.58% |
| Population Density | 17 People per Square Mile |
| Total Households | 134 |
| Median Household Income (2021) | $41,974 |
| Current Unemployment Rate (April 2024) | 3.0% |
| Majority Race/Ethnicty | White - 59.70% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 80 | 59.7% |
| Black | 0 | 0% |
| Hispanic | 54 | 40.3% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 27 | 15.79% |
| Bachelor Degree | 15 | 8.77% |
| High School Diploma | 28 | 16.37% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 0 | 0% |
| 1 or More Years of College | 8 | 4.68% |
| Associates Degree | 93 | 54.39% |
| Masters Degree | 0 | 0% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
| Coordinates | 42.40900040,-96.38694000 |
| Adjacent ZIP Codes | |
| Cities/Towns in 51111 | |
| Region | Sioux City Area |
| Metropolitan/Micropolitan Stat Area | Sioux City, IA-NE-SD |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 7 Square Miles |
| US Congressional Districts in 51111 | |
| Iowa State Senate Districts in 51111 | |
| Iowa State House of Representatives Districts in 51111 |
| School Districts in 51111 |
| Plant Hardiness Zone | Zone 5a: -20F to -15F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 47d - Missouri Alluvial Plain | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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