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Gang Statistics for Monrovia, California

The following page presents statistics and interpretations on the activity of gangs in Monrovia in California, including information relating to overall numbers, per capita numbers, approximate gang membership, locations, and any correlations between gang activity and the demographic and socio-economic environment of Monrovia, California. Use this information to draw inferences related to emerging gang problems, compare gang activity patterns between Monrovia and or the US in general, investigate the root causes of gang crime, and analyze the historical trends in gang activity locally for specific regions across the United States.

Estimated Gang Risk Index: 0

*The Estimated Gang Risk Index uses multivariate regression to estimate the number of gangs per 10,000 people that is typical for regions with similar demographic, socio-economic, and geographic characteristics. The higher the number, the greater the gang risk. Gang risk is usually associated with the following regional characteristics:
  1. increasing gang presence over the last several years
  2. existence of gangs already in region
  3. number of single-parent families, and
  4. high proportions of youth and young adults
The average index is 7.0. Regions with actual per capita numbers (see left) that are below the Gang Risk Index have lower than expected gang activity, while regions with actual per capita numbers that are above the Gang Risk Index have higher than expected gang activity.

Summary of Monrovia

Name: Monrovia
Type: Large City
State: California
Region: West
Gangs per 10,000 people: Unknown

Demographics of Monrovia

White 75.2
Black 11.2
Hispanic 43
Youth Population 16.3
Over 65 Population 9.7


Migrant Population 1%
Unemployment Rate 8.2
Percent Below the Poverty Line 23.8
Percent Working Outside County 5.9
Percent Single-Parent Families 27.7

Gang Patterns & Statistics for Monrovia

Number of Active Gangs Unknown
Number of Youth Groups 0
Number of Gang Members 225
When Gangs First Became Known 1980-1989
Trend in Gang Activity* Increasing

Other Crime Resources

This online tool is based on:

Weisheit, Ralph A., and L. Edward Wells. GANGS IN RURAL AMERICA, 1996-1998 [Computer file]. ICPSR version. Normal, IL: Illinois State University, Dept. of Criminal Justice [producer], 2001. Ann Arbor, MI: Interuniversity Consortium for Political and Social Research [distributor], 2002.
* trends may be out of date

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