| Statistic | Reportedincidents | /100k people | Monmouth/100k people | Illinois/100k people | National/100k people |
| Total crime | 147 | n/a (estimate) | 1,738 | 2,004 | 2,119 |
| Murder | 0 | n/a | 0.0 | 5.8 | 5.0 |
| Rape | 7 | n/a | 82.7 | 46.9 | 37.5 |
| Robbery | 0 | n/a | 0.0 | 90.2 | 60.6 |
| Assault | 24 | n/a | 283.7 | 146.3 | 256.1 |
| Violent crime | 31 | n/a (estimate) | 366 | 289 | 359 |
| Burglary | 42 | n/a | 496.5 | 290.5 | 229.2 |
| Theft | 69 | n/a | 815.6 | 1,134.4 | 1,272.1 |
| Vehicle theft | 5 | n/a | 59.1 | 290.4 | 258.8 |
| Property crime | 116 | n/a (estimate) | 1,371 | 1,715 | 1,760 |

Crime is typically categorized into two main types: violent and property crimes. Violent crimes encompass offenses such as murder, rape, robbery, and assault, while property crimes include burglary, theft, and vehicle theft. Based on the most recent report, the Monmouth crime rate is lower than the national average by 18%. Specifically, there were 31 violent crimes in Monmouth, equivalent to 366 per 100,000 individuals, higher than the national average by 2%. Furthermore, Monmouth recorded 116 property crimes, amounting to 1371 per 100,000 residents, which was lower than the average by 22.1%.
The violent crime rate in Monmouth closely mirrors the national average among all cities that reported crime, with 366 incidents per 100,000 people. The national average for violent crime per 100,000 people was 359. This consistency highlights Monmouth as a community where safety standards are in line with the broader national landscape, providing residents with a reliable sense of security.
Monmouth showcased a dedication to violent crime safety in its latest reported crime year by achieving a murder rate of 0. This accomplishment could indicate that it is a safe place for residents, but also provides a shining example to other urban areas endeavoring to create safer communities.
To get a feel for the safety of living in Monmouth, it's essential to analyze both the overall crime rate and the daily incident count. Monmouth presents a total crime rate that is 18% lower than the national average per 100,000 residents. Consequently, Monmouth experiences an average of 0.4 daily crimes, comprising 0.08 violent incidents and 0.32 property-related offenses. This evaluation offers a comprehensive understanding of the safety landscape, aiding individuals in making informed decisions when considering relocation.
In the most recent crime report, year-over-year crime rates in Monmouth has decreased by 25.8%. Examining the change in crime rates from one year to the next provides valuable insights into the evolving safety landscape of Monmouth, aiding residents in assessing whether it is becoming a safer or more dangerous place to live. These crime rates are categorized into two primary groups: violent and property crimes. Year-over-year, violent crime has increased by 34.8%, while property crime has decreased by 33.7%. This comprehensive analysis offers potential residents essential information for making informed decisions about whether or not Monmouth is a safe place to live.
Rising cost of living expenses, including increased housing costs, grocery, utility and healthcare expenditures, can induce financial strain on individuals and families, particularly those with limited financial resources. Such economic stress may propel individuals towards crime, including theft or burglary, as a means of addressing their financial hardships. Conversely, cities characterized by a lower cost of living may alleviate economic pressures, potentially resulting in a reduced crime rate. In Monmouth, the cost of living is 19.28% lower than the national average, reflecting a more affordable economic environment that could contribute to a decrease in crime levels.
The impact of law enforcement and community policing efforts plays a crucial role in shaping crime rates in any city. A robust and cooperative bond between law enforcement and the community can serve as a deterrent to criminal activities, enhancing overall safety. In Monmouth, the ratio of police officers and civilians per 1,000 residents stands at 3.26, differing from the national average of 3.25. Effective law enforcement hinges not solely on officer numbers but also on the manner in which they interact and collaborate with the community. Building trust and cooperation are central tenets of community policing, amplifying its influence on crime prevention.
High rent costs can create economic stress for individuals and families, particularly those with limited financial resources. When a significant portion of one's income is spent on housing, there may be less money available for other essential needs such as food, healthcare and education. Economic stress can contribute to desperation and potentially lead individuals to engage in criminal activities, such as theft or fraud, as a means of financial survival. Average rent rates in Monmouth are $870, compared to a national average of $1,444 per month.

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| Item | Monmouth | Illinois | National |
| Law enforcement employees (officers & civilians) | 31 | 30,690 | 558,732 |
| Police officers & civilians /1000 residents | 3.3 | 2.6 | 3.3 |
| State | Total offenders | Illinois /100K | National /100K |
| Illinois | 32,213 | 263 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Stronghurst, IL | 1,100 | 143 | 849 | 992 |
| Biggsville, IL | 452 | 180 | 1,070 | 1,250 |
| Abingdon, IL | 3,673 | 203 | 1,202 | 1,405 |
| North Henderson, IL | 245 | 358 | 2,127 | 2,486 |
| Roseville, IL | 879 | 363 | 2,151 | 2,514 |
| Kirkwood, IL | 759 | 370 | 2,196 | 2,566 |
| Rio, IL | 215 | 390 | 2,312 | 2,701 |
| Monmouth, IL | 9,066 | 366 | 1,371 | 1,738 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Smithville, NJ | 9,067 | 237 | 1,553 | 1,791 |
| Miramar Beach, FL | 9,072 | 94 | 498 | 592 |
| Pulaski, VA | 9,058 | 567 | 2,325 | 2,892 |
| Pingree Grove, IL | 9,076 | 9 | 158 | 167 |
| Edgewater, MD | 9,056 | 308 | 1,502 | 1,810 |
| Monmouth, IL | 9,066 | 366 | 1,371 | 1,738 |