PUBLIC REGISTRY INFORMATION
345 registered sex offenders in Sioux City, Iowa
Explore registry information in Sioux City and check nearby locations on the free map.
Registry snapshot
October 7, 2026- Registry records
- 345
- Registry source
- Iowa Sex Offender Registry
Informational snapshot; verify current details with the official registry.
Registry context
Population & local comparison- Registry records per 10,000 residents
- 40.1
- Population estimate
- 86,101
- About 1 registry record per
- 250 residents
9% above Woodbury County’s rate
U.S. Census Bureau, ACS 5-year estimate. Records relative to population, not the share of residents on a registry.
Explore near Sioux City
Free public map · No account required
A 1-mile radius around the city map center. This is not the whole city count.
Open the interactive map →Associated counties
| Location | Registry records | Population estimate | Records per 10,000 |
|---|---|---|---|
| Plymouth County | 58 | 25,747 | 22.5 |
ZIP codes associated with Sioux City
| Location | Registry records | Population estimate | Records per 10,000 |
|---|---|---|---|
| ZIP code 51103 | 108 | 16,895 | 63.9 |
| ZIP code 51105 | 89 | 10,415 | 85.5 |
| ZIP code 51106 | 64 | 28,592 | 22.4 |
| ZIP code 51104 | 43 | 23,197 | 18.5 |
| ZIP code 51101 | 36 | 1,031 | 349.2 |
| ZIP code 51109 | 14 | 3,606 | 38.8 |
| ZIP code 51111 | 14 | — | — |
| ZIP code 51108 | 6 | 5,960 | 10.1 |
Other cities associated with Woodbury County
| Location | Registry records | Population estimate | Records per 10,000 |
|---|---|---|---|
| Sergeant Bluff | 12 | 5,171 | 23.2 |
| Correctionville | 5 | 761 | 65.7 |
| Moville | 5 | 1,670 | 29.9 |
| Lawton | 4 | 790 | 50.6 |
| Salix | 4 | 402 | 99.5 |
| Anthon | 2 | 514 | 38.9 |
| Sioux | 2 | — | — |
| Smithland | 2 | 137 | 146.0 |
| Bronson | 1 | 312 | 32.1 |
| Danbury | 1 | 283 | 35.3 |
| Oto | 1 | — | — |
| Sioux Falls | 1 | — | — |
| Souix City | 1 | — | — |
| Winnebago | 1 | — | — |
Each linked area shows its own total. Geographic totals overlap and should not be added together; cities and ZIP codes can cross county boundaries. Population figures, where shown: U.S. Census Bureau, ACS 5-year estimate.
Frequently asked questions
How many registered sex offenders are listed in Sioux City?
The October 7, 2026 snapshot lists 345 registered sex offenders in Sioux City, Iowa. Counts are informational and may differ from official registry totals.
How are the associated areas shown?
The linked areas share registry locations with Sioux City. City, county and ZIP boundaries can differ, and their totals should not be added together.
Does the map preview show the whole city?
No. The preview shows public registry locations within 1 mile of the area’s map center. It covers a different area from the total above, and its live results may differ.
Check a specific address
Search the free map and verify any result with the official registry.
Search an address on the map →