Zip Code 51003 Map and Profile

Official Zip Code NameAlton
Zip Code StateIowa
Zip Code TypeNon-Unique
Primary County: Sioux
Area Code712
Current Population:1700
Racial Majority:White 87.93%
Public School Racial Majority:White 77.2%
Unemployment Rate:2.3%
Median Household Income$45196
Average Adjusted Gross Income$68450
School Test Performance:Excellent
Average Commute Time12.6 Minutes
Time Zone:Central Daylight Time
Elevation Range1306 - 1411 ft.
Area51 Sqm.
Coordinates(Y,X)42.98492000, -95.98606400

Zip Code 51003 Description

Zip Code 51003 is located in the state of Iowa in the Sioux City metro area. Zip code 51003 is primarily located in Sioux County. The official US Postal Service name for 51003 is ALTON, Iowa. Portions of zip code 51003 are contained within or border the city limits of Alton, IA, Orange City, IA, . The area code for zip code 51003 is 712. 51003 can be classified socioeconically as a Lower Middle Class class zipcode in comparison to other zipcodes in Iowa.

The current unemployment level in 51003 is 2.3% which is lower than the current county unemployment level of 2.4% and is lower than the current state unemployment at 4.0% and lower than the current national unemployment rate at 5.2%.

According the 2010 US Census, the population of 51003 increased to 1700 from 1628 over the past 10 years. The majority ethnicity residing in 51003 is White while the majority ethnicity attending 51003 public schools is White. 28% of students in 51003 public schools receive or are eligible to participate in free or reduced lunch programs.

 White 1421 87.93% 1611 -12%
 Black Or African American 5 0.31% 7 -29%
 Hispanic 169 10.46% 62 +173%
 American Indian Or Alaskan Native 0 0% 4 -100%
 Asian 6 0.37% 9 -33%
 Native Hawaiian & Other Pacific Islander 0 0% 0 +0%
 Other Race 0 0% 0 +0%
 Two Or More Races 7 0.93% 7 +114%

Zip Code 51003 Race/Ethnicity

 White 77.2%
 Black Or African American 0.3%
 Hispanic 18.7%
 Asian 1.7%
 Hawaii/Pacific Islander 0%
 American Indian Or Alaskan Native 0%
 Two or More Races 2.1%

Zip Code 51003 Public School Race/Ethnicity Profile

Total Population17001628
Male Population50.20%
Female Population49.80%
Total Households646
Test Score PerformanceExcellent
Percentage of Students Eligible For
Free or Reduced Lunch
Percentage of Public Schools with
Title 1 Status
Median Household Income$45196
Income Under $50K Per Year57.00%
Income $50K to $100K Per Year37.10%
Income Above $100K Per Year6.00%
51003 US Congressional District
DistrictRepresentativeParty Affiliation
Iowa District 4Steve KingRepublican
Related Maps: Map of All Iowa Congressional Districts

Average Real Estate Asking Price$138250
Average Real Estate Sale Price$460241
Current Unemployment Level 2.3%
Previous Month Unemployment Level2.7%
Unemployment Level 1 Year Ago2.2%
2012 Hardiness ZoneZone 5a: -20F to -15F
1990 Hardiness ZoneZone 4b: -25F to -20F
Köppen Climate ClassificationDfa - Humid Continental Hot Summers
Ecoregion 47a - Loess Prairies
Average First Frost DatesOctober 1 - 10
Average Last Frost DatesMay 1 - 10

Zip Code 51003 Annual Climate Data

Avg Min Temp (°F)5122435485761594937231035
Avg Max Temp (°F)25324560738285837663432958
Avg Precip (In.).68.611.962.793.454.213.713.392.581.991.52.827.69
Core Based Statistical
Area (CBSA)
CBSA Population0
Time ZoneCentral Daylight Time
IANA Time ZoneAmerica/Chicago
Follows DSTYes
GMT Difference-6 Hours