ZIP code
51003
Alton, IA
STANDARD
51003 covers Alton in Sioux County, with 1,815 people in the ACS estimate.
Map of 51003, Alton
ZIP code map
About ZIP code 51003
More enterprise fields
People in 51003
Race
- White1,565
- Black or African American27
- American Indian or Alaska Native12
- Asian6
- Native Hawaiian and Pacific Islander5
- Other race40
- Two or more races64
Hispanic or Latino (any race): 91
Age
- Under 10241
- 10 to 19272
- 20 to 29172
- 30 to 39216
- 40 to 49189
- 50 to 59219
- 60 to 69248
- 70 to 79117
- 80 and older45
Income and housing in 51003
Education
- High school graduate95.5%
- Bachelor's degree26.6%
- Graduate degree4.5%
Places covering 51003
Cities and places
- Alton72.6%
- Orange City0.0%
Counties
- Sioux County100.0%
27.4% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 51003
IRS populationACS population
Hover a year for IRS and ACS values.
ZIP codes near 51003
- 51041Orange City2.9 miPop 7,173 · Income $84,115
- 51022Granville6.6 miPop 966 · Income $91,133
- 51238Hospers8.0 miPop 1,483 · Income $82,634
- 51036Maurice9.2 miPop 483 · Income $111,563
- 51250Sioux Center10.6 miPop 9,887 · Income $90,238
- 51045Oyens11.5 miPop 75 · Income $96,250
- 51050Remsen11.8 miPop 2,909 · Income $101,691
- 51234Boyden14.5 miPop 1,090 · Income $81,458
- 51035Marcus15.0 miPop 1,664 · Income $75,673
- 51201Sheldon15.4 miPop 6,226 · Income $70,592
- 51231Archer15.9 miPop 543 · Income $105,388
- 51239Hull15.9 miPop 2,947 · Income $82,353
ZIP code 51003 FAQ
- What city is ZIP code 51003 in?
- 51003 is in Alton, IA.
- What county is 51003 in?
- 51003 is in Sioux County.
- What is the median household income in 51003?
- The median household income in 51003 is $85,909.
- Which ZIP codes are near 51003?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51003.