51104 Zip Code, Sioux City
Crime Rate & Statistics
Very safe zip code — well below-average crime rates
Safer than 38% of zip codes in Sioux City
Safety at a Glance
Check a specific address
in Sioux City
Is 51104 a Safe Zip Code?
Yes — this zip code is very safe. Zip code 51104 in Sioux City, IA has a safety grade of A. The overall crime index is 86, which is 14% below the national average of 100. This zip code is safer than 38% of zip codes in Sioux City.
Compared to the Sioux City average (crime index 92), zip code 51104 is 6% lower in overall crime. Crime levels here are roughly in line with the city average.
Looking at specific crime types, larceny / theft is the most elevated concern (index: 117, 17% above average), while robbery is the lowest risk (index: 85).
51104 Crime Breakdown
Crime indices compared to national average (100) and Sioux City city average. Higher values mean more crime.
| Crime Type | Index | vs National | Risk Level | |
|---|---|---|---|---|
| Violent Crime | ||||
|
Murder
|
86 | -14% | Average | |
|
Assault
|
99 | -1% | Average | |
|
Robbery
|
85 | -15% | Average | |
|
Rape
|
101 | +1% | Moderate | |
| Property Crime | ||||
|
Burglary
|
88 | -12% | Average | |
|
Larceny / Theft
|
117 | +17% | Moderate | |
|
Vehicle Theft
|
117 | +17% | Moderate | |
How 51104 Compares
Crime index by category: 51104 vs Sioux City average vs national average.
Crime by Category
Overall Crime Comparison
51104 Crime Map
Crime heatmap based on block-group level data. Red areas indicate higher crime density.
See the crime score for a specific address
51104 Demographics & Context
Education
Housing
Racial Demographics
Other Zip Codes in Sioux City
Frequently Asked Questions
What is the crime rate in Zip code 51104, Sioux City?
Zip code 51104 in Sioux City, IA has a crime safety grade of A as of 2026. The overall crime index is 86, which is 14% below the national average. Compared to the Sioux City average, crime in Zip code 51104 is 6% lower. Zip code 51104 is safer than 38% of neighborhoods in Sioux City.
Is Zip code 51104 a safe neighborhood in Sioux City?
Zip code 51104 is generally considered a safe neighborhood in Sioux City, earning a crime grade of A. The highest concern is Larceny / Theft (index: 117), while Robbery is the lowest risk (index: 85).
How does Zip code 51104 compare to the rest of Sioux City?
Zip code 51104's overall crime index is 86, compared to the Sioux City average of 92. This means crime in Zip code 51104 is 6% lower than the city average. For violent crime, the index is 93, and for property crime it is 107. However, crime can vary block by block, so checking the crime map for specific streets is recommended.
What type of crime is most common in Zip code 51104?
The most prevalent crime type in Zip code 51104 is Larceny / Theft, with a crime index of 117 (17% above the national average). Overall, property crime is more prevalent than violent crime in this neighborhood, which is consistent with national trends.
What are safer neighborhoods near Zip code 51104?
Nearby neighborhoods with good safety ratings include 51106, 51108, 51111 and 51109. These areas are close to Zip code 51104 and offer lower crime rates, making them worth considering for residents who prioritize safety.
What are the demographics of Zip code 51104?
Zip code 51104 has a population of approximately 20,613. The median household income is $72,865. The median home value is $198,858. Research shows that economic factors can correlate with crime rates, though many other variables play a role in neighborhood safety.
How does Zip code 51104 crime compare to the national average?
Zip code 51104's overall crime rate is 14% below the national average (index 86 vs 100). Within Sioux City, it is safer than 38% of neighborhoods. For the most accurate picture, review the per-crime-type breakdown above, as some categories may differ significantly from the overall trend.
Crime data sourced from FBI UCR reports and local law enforcement agencies. Crime indices use 100 as the national average. Updated April 2026.