ZIP Code 51104 - Sioux City Iowa

ZIP Code 51104 is located in Sioux City Iowa. 51104 is entirely within Woodbury County. Regionally, it is located in the Sioux City Area.

Stats Demographics Geography Politics Schools Climate Related Pages

ZIP Code 51104 Quick Stats

ZIP Code NameSioux City
Primary CountyWoodbury County
ZIP Code TypeStandard
Population (2022)22,759
Area Code(s)712
Current Time

ZIP Code 51104 Map

51104 Demographics

51104 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Iowa based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 51104 is White. The majority race/ethnicity attending public schools in 51104 is White. The current unemployment level in 51104 is 3.0%.

Population Growth Rate2.17%
Population Density3,354 People per Square Mile
Total Households8,422
Percentage High Income Households4.2%
Median Household Income (2021)$64,735
Average Adjusted Gross Income (2020)$61,000
Current Unemployment Rate (April 2024)3.0%
Majority Race/EthnictyWhite - 71.79%
Public School Majority Race/EthnictyWhite - 42.88%

51104 Race/Ethnicty Breakdown

Native American3001.19%
Hawaiian/Pac. Islander550.22%

51104 Public School Race/Ethnicty Breakdown

Native American632.35%
Hawaiian/Pac. Islander240.89%

51104 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College1,0028.2%
Bachelor Degree2,90923.82%
High School Diploma2,85523.38%
No High School Diploma1981.62%
GED or Alternate6525.34%
1 or More Years of College2,07016.95%
Associates Degree9367.66%
Masters Degree1,0638.7%
Professional Degree3642.98%
Doctorate Degree1641.34%

51104 Geography

Adjacent ZIP Codes
Cities/Towns in 51104
RegionSioux City Area
Metropolitan/Micropolitan Stat AreaSioux City, IA-NE-SD
Time ZoneCentral Daylight Time
IANA TimezoneAmerica/Chicago
Area7 Square Miles

51104 Politics

US Congressional Districts in 51104
Iowa State Senate Districts in 51104
Iowa State House of Representatives Districts in 51104

51104 Schools

School Districts in 51104

51104 Weather and Climate Data

Plant Hardiness ZoneZone 5a: -20F to -15F
Average First Frost DateOctober 1 - 10
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion47m - Western Loess Hills

51104 Annual Climate Data

Avg Min Temp (°F)8152637495963615139251337
Avg Max Temp (°F)28354761738286837664453159
Avg Precip (In.).63.682.142.974.073.853.583.012.592.161.62.8628.15

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