Does poverty cause crime?

Poverty shows a moderate positive correlation with violent crime and murder rates at the state level (r≈0.58 for murder). However, correlation does not prove causation — many other factors are involved.

Do states with more guns have more crime?

At the state level, gun ownership shows essentially no correlation with violent crime rates (r≈0.03). The relationship between guns and crime is far more complex than simple state-level comparisons suggest.

What is the biggest predictor of crime?

Among the factors analyzed, poverty rate shows the strongest correlation with murder rates (r≈0.58). However, urbanization, demographics, policing, and many other factors also play important roles.

Crime vs Everything

What actually correlates with crime? We computed Pearson correlations across all 50 states + DC between crime rates and poverty, gun ownership, and median income. Click any dot to see the state.

⚠️ Correlation does not equal causation. These scatter plots show statistical relationships between state-level variables. Many confounding factors (urbanization, demographics, policing, history) are not captured here. Use this as a starting point for understanding, not as proof of causation.

Key Insights

→Strongest correlation: Poverty Rate (%) vs Murder Rate (r=0.58)
→Poverty shows the clearest link to murder rates (r²=0.34)
→Gun ownership shows essentially no correlation with violent crime rates at the state level
→Median income shows almost no linear relationship with violent crime
→State-level data masks huge variation within states (urban vs rural)

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Poverty Rate (%) vs Violent Crime Rate

r = 0.408r² = 0.166

Moderate correlation (positive)

Gun Ownership (%) vs Violent Crime Rate

r = 0.030r² = 0.001

Very weak / no correlation (positive)

Median Income ($K) vs Violent Crime Rate

r = 0.004r² = 0.000

Very weak / no correlation (positive)

Poverty Rate (%) vs Property Crime Rate

r = 0.309r² = 0.096

Weak correlation (positive)

Gun Ownership (%) vs Murder Rate

r = -0.049r² = 0.002

Very weak / no correlation (negative)

Poverty Rate (%) vs Murder Rate

r = 0.579r² = 0.336

Moderate correlation (positive)

Key Findings

🔴 Poverty is the strongest predictor of murder

With r=0.58, poverty rate explains about 34% of the variation in state murder rates. Still, that means 66% is explained by other factors.

🔵 Gun ownership doesn't predict violent crime at the state level

The correlation between gun ownership and violent crime is essentially zero (r≈0). This doesn't mean guns don't matter — it means the relationship is far more complex than "more guns = more crime" or "more guns = less crime."

💰 Income doesn't linearly predict crime

Median income shows almost no correlation with violent crime. Some wealthy states (Maryland, Alaska) have high crime rates, while some lower-income states (Maine, Idaho) are very safe.

🏙️ The hidden variable: urbanization

Much of the variation in state crime rates is driven by urbanization levels and the presence of large cities — a factor not captured in these simple correlations.

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