Property Intelligence Report — South Sioux City, Nebraska

Federal data on flood, climate, radon, air quality and more. Free preview for any address in South Sioux City. $49 full report.

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Risk Scorecard

Radon Zone
Zone 1 — High
Predicted average indoor radon screening level >= 4 pCi/L. EPA strongly recommends radon testing and mitigation.
Earthquake Risk
Minimal
1 events in past 10 years, max magnitude 3
Current Conditions
72°F
Partly Cloudy

Quick Stats

21,308
Population
$158,700
Median Home Value
$66,112
Median Income

South Sioux City at a Glance

South Sioux City sits right at the Missouri River crossing into Iowa, giving it genuine small-city character with a population just over 21,000. The median home value around $158,700 keeps properties reasonably affordable compared to larger regional markets, and with 65 percent owner-occupancy, you're looking at a neighborhood where people are invested in staying put. Household incomes average $66,112, which reflects a stable working and middle-class community—not flashy, but solid.

One thing you need to know upfront: this area sits in EPA radon Zone 1, which is the high-risk category. If you're buying here, radon testing and mitigation should be automatic parts of your inspection process, not afterthoughts. On the positive side, earthquake risk is genuinely minimal—nothing to lose sleep over. Regarding the community itself, educational attainment runs lower than state and national averages at 13.7 percent with bachelor's degrees, which typically correlates with a working-class demographic focused on agriculture, manufacturing, and transportation jobs rather than tech or professional services.

If you value affordability, riverside location, and an authentic small-town feel over cultural amenities or advanced degree holders, South Sioux City deserves serious consideration. Just budget for radon assessment.

Analysis based on federal data from FEMA, EPA, USGS, Census Bureau and NOAA. Generated September 2026.

Current Conditions

Tonight: 72°F — Partly Cloudy. Wind 5 mph ESE.

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