| ZIP Code | 51103 |
|---|---|
| City | Sioux City |
| State | Iowa (IA) |
| County | Woodbury County |
| Area Code | 712 |
| Elevation | 1,314 ft |
| Latitude | 42.519729 |
|---|---|
| Longitude | -96.449305 |
| Timezone | Chicago (DST) |
| FIPS | 19193 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 36.8 yrs ↑ 11% since 2019 |
|---|---|
| Avg Household Size | 2.59 |
| Below Poverty | 18.4% ▲ 84% above avg |
| College Grads | 30.0% ▼ 23% below avg |
| Unemployment | 3.6% ▼ 27% below avg |
| No HS Diploma | 415 (4.6%) |
| HS Graduate | 3,421 (37.9%) |
| Some College | 1,365 (15.1%) |
| Associates | 1,129 (12.5%) |
| Bachelors | 867 (9.6%) |
| Graduate Degree | 1,839 (20.4%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $57,212 ▼ 25% below avg ↑ 25% since 2019 |
|---|---|
| Median Home Value | $124,400 ▼ 55% below avg ↑ 38% since 2019 |
| Home/Income Ratio | 2.2x (nat avg ~3.5x) |
| Median Rent | $887/mo ↑ 10% since 2019 |
| Total Units | 6,867 |
| Vacant Units | 403 |
| Avg HH Size | 2.59 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 6,867 |
|---|---|
| Vacant | 403 |
| Owner Occupied | 64.7% |
| Renter Occupied | 35.3% |
| Avg HH Size | 2.59 |
ZIP code 51103 is located in Sioux City, Iowa, within Woodbury County. With a population of 17,145, this is a moderately populated ZIP code with a relatively young community — the median age is 36.8 years. Economically, 51103 is a solidly middle-class ZIP code: the median household income of $57,212 is below the national average.
Real estate in ZIP code 51103 represents one of the more affordable housing markets in the country. The median home value of $124,400 is well below the national average. Renters can expect to pay around $887 per month in median rent. Homeownership is strong here — 64.7% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 38% since 2019.
The population of 51103 is majority White (52.56%). Residents are moderately educated — 30.0% hold a bachelor's degree or higher, which is below the national average. Poverty affects some residents at 18.4%. Household income has grown by 25% since 2019.
The unemployment rate in 51103 stands at 3.6%, which is below the national average. As in most parts of the country, driving alone is the dominant commute mode at 75%.
Overall, ZIP code 51103 in Sioux City, IA is characterized as solidly middle-class, moderately educated, a relatively young community, and predominantly owner-occupied. With 17,145 residents, a median household income of $57,212, and a median home value of $124,400, it offers a clear picture of life in this part of Iowa.