ZIP Code 51101 - Sioux City Iowa

ZIP Code 51101 is located in Sioux City Iowa. 51101 is entirely within Woodbury County. Regionally, 51101 is located in the Sioux City Area.

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ZIP Code 51101 Quick Stats

ZIP Code NameSioux City
Primary CountyWoodbury County
ZIP Code TypeStandard
Population (2022)1,070
Area Code(s)712
Current Time

ZIP Code 51101 Map

51101 Demographics

51101 can be classified socioeconomically as Lower 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 51101 is White. The current unemployment level in 51101 is 2.2%.

Population Growth Rate-25.23%
Population Density763 People per Square Mile
Total Households465
Median Household Income (2021)$24,091
Average Adjusted Gross Income (2021)$240,180
Current Unemployment Rate (June 2024)2.2%
Majority Race/EthnictyWhite - 74.09%

51101 Race/Ethnicty Breakdown

Native American50.76%
Hawaiian/Pac. Islander274.09%

51101 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College7816.85%
Bachelor Degree357.56%
High School Diploma11725.27%
No High School Diploma102.16%
GED or Alternate7616.41%
1 or More Years of College13529.16%
Associates Degree122.59%
Masters Degree00%
Professional Degree00%
Doctorate Degree00%

51101 Geography

Adjacent ZIP Codes
Cities/Towns in 51101
RegionSioux City Area
Metropolitan/Micropolitan Stat AreaSioux City, IA-NE-SD
Time ZoneCentral Daylight Time
IANA TimezoneAmerica/Chicago
Area1 Square Miles

51101 Politics

US Congressional Districts in 51101
Iowa State Senate Districts in 51101
Iowa State House of Representatives Districts in 51101

51101 Schools

School Districts in 51101

51101 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

51101 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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