ZIP Code 51103 - Sioux City Iowa

ZIP Code 51103 is located in Sioux City Iowa. 51103 is entirely within Woodbury County. Regionally, it is located in the Sioux City Area.

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ZIP Code 51103 Quick Stats

ZIP Code NameSioux City
Primary CountyWoodbury County
ZIP Code TypeStandard
Population (2022)17,005
Area Code(s)712
Current Time

ZIP Code 51103 Map

51103 Demographics

51103 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 51103 is White. The majority race/ethnicity attending public schools in 51103 is Hispanic. The current unemployment level in 51103 is 3.0%.

Population Growth Rate0.00%
Population Density1,659 People per Square Mile
Total Households6,248
Percentage High Income Households0.2%
Median Household Income (2021)$50,179
Average Adjusted Gross Income (2021)$294,700
Current Unemployment Rate (May 2024)3.0%
Majority Race/EthnictyWhite - 60.54%
Public School Majority Race/EthnictyHispanic - 42.05%

51103 Race/Ethnicty Breakdown

Native American9995.14%
Hawaiian/Pac. Islander2101.08%

51103 Public School Race/Ethnicty Breakdown

Native American1775.07%
Hawaiian/Pac. Islander681.95%

51103 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College6537.64%
Bachelor Degree6587.7%
High School Diploma3,21937.65%
No High School Diploma1862.18%
GED or Alternate86510.12%
1 or More Years of College1,85421.68%
Associates Degree7879.2%
Masters Degree2422.83%
Professional Degree770.9%
Doctorate Degree90.11%

51103 Geography

Adjacent ZIP Codes
Cities/Towns in 51103
RegionSioux City Area
Metropolitan/Micropolitan Stat AreaSioux City, IA-NE-SD
Time ZoneCentral Daylight Time
IANA TimezoneAmerica/Chicago
Area10 Square Miles

51103 Politics

US Congressional Districts in 51103
Iowa State Senate Districts in 51103
Iowa State House of Representatives Districts in 51103

51103 Schools

School Districts in 51103

51103 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

51103 Annual Climate Data

Avg Min Temp (°F)9152637505964615139251337
Avg Max Temp (°F)28354762738286837664453159
Avg Precip (In.).62.672.122.934.033.83.543.012.592.131.57.8127.83

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