51003 ZIP Code – Alton, Iowa
51003 is a ZIP code serving Alton, Iowa in Sioux County with a population of approximately 1,761 residents. The median household income is $85,536 — above the Iowa average and above the national average. At $215,800, median home values run below the national average, with 87.1% owner-occupied housing (decreasing). . Median rent is $695, which is below the U.S. average. Housing consists of 92% single-family (decreasing).
At 1.8%, the unemployment rate is well below the national figure. About 2.2% of residents live below the poverty line, well below the national rate. An estimated 26.6% of adults hold a bachelor's degree or higher, near the national average. Residents have a median age of 34.7, below the U.S. median. Neighboring ZIP codes include 51041, 51022, 51238.
ZIP Code 51003 Data
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ZIP 51003 vs. Iowa vs. U.S.
| Metric | ZIP 51003 | IA Avg. | U.S. Avg. |
|---|---|---|---|
| Population | 1,761 | 3,297 | 10k |
| Median Household Income | $85k | $71k | $73k |
| Median Home Value | $215k | $153k | $258k |
| Median Rent | $695 | $792 | $1,088 |
| Median Age | 34.7 | 43.6 | 43.2 |
| Unemployment Rate | 1.8% | 3.1% | 5.0% |
| Poverty Rate | 2.2% | 9.8% | 13.3% |
| Bachelor's Degree or Higher | 26.6% | 21.9% | 26.9% |
Demographics Charts
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Nearby ZIP Codes
- 51041 – Orange City
- 51022 – Granville
- 51238 – Hospers
- 51036 – Maurice
- 51045 – Oyens
- 51050 – Remsen
- 51250 – Sioux Center
- 51234 – Boyden
- 51231 – Archer
- 51201 – Sheldon
Nearby ZIP Code Comparison
| ZIP Code | City | Population | Median Income |
|---|---|---|---|
| 51041 | ORANGE CITY | 7,016 | $80,625 |
| 51022 | GRANVILLE | 993 | $88,077 |
| 51238 | HOSPERS | 1,401 | $69,432 |
| 51036 | MAURICE | 676 | $109,750 |
| 51045 | OYENS | 113 | $108,000 |