| Statistic | Reportedincidents | /100k people | Jefferson/100k people | Wisconsin/100k people | National/100k people |
| Total crime | 123 | n/a (estimate) | 1,620 | 1,433 | 2,119 |
| Murder | 0 | n/a | 0.0 | 4.2 | 5.0 |
| Rape | 9 | n/a | 118.5 | 34.8 | 37.5 |
| Robbery | 0 | n/a | 0.0 | 39.4 | 60.6 |
| Assault | 10 | n/a | 131.7 | 200.1 | 256.1 |
| Violent crime | 19 | n/a (estimate) | 250 | 279 | 359 |
| Burglary | 0 | n/a | 0.0 | 117.2 | 229.2 |
| Theft | 95 | n/a | 1,251.0 | 875.6 | 1,272.1 |
| Vehicle theft | 9 | n/a | 118.5 | 161.3 | 258.8 |
| Property crime | 104 | n/a (estimate) | 1,370 | 1,154 | 1,760 |

Crime can be categorized into two primary types: violent and property crimes. Violent crimes encompass offenses such as murder, rape, robbery, and assault, whereas property crimes involve acts like burglary, theft, and vehicle theft. The overall crime rate in Jefferson is 23.6% lower than the national average. Specifically, there were 19 violent crimes reported in Jefferson, equivalent to 250 per 100,000 residents, which is lower than the national average by 30.3%. Additionally, Jefferson recorded 104 property crimes, amounting to 1370 per 100,000 people, lower than the national average by 22.2%.
In the latest reported crime year, Jefferson recorded zero homicides. This statistic potentially positions the city as a paragon of security, radiating a profound sense of safety for its residents. A low number of severe violent crimes instills a deep feeling of well-being among its community but also establishes a lofty benchmark for other locales aspiring to foster equally secure environments.
To determine if Jefferson is a safe place to live, let's take a look at the overall crime rate of the area, as well as the number of daily crimes. Jefferson has a total crime rate that is 24% lower than the national average per 100,000 residents. This results in a total of 0.34 daily crimes (0.05 violent daily crimes and 0.28 daily property crimes) in Jefferson.
Year-over-year crime rates in Jefferson has decreased by 25% in the last reported crime report. Comparing crime rates from one year to another offers some insight into whether or not Jefferson is becoming a safer or more dangerous place to live. Crime rates are categorized by violent and property crime. Year-over-year violent crime has increased by 90%, while property crime has decreased by 32.5%. This analysis equips individuals with crucial information for making informed decisions about living in Jefferson.
Jefferson has a poverty rate that stands at 9.5, in contrast to the national average of 15.1. Historically, a direct correlation has been observed between poverty rates and crime stats. Higher poverty rates have led to higher crime rates, while lower poverty rates have led to a reduction in Jefferson crime rates. Income disparities and heightened poverty levels can serve as catalysts for elevated or reduced criminal activity, as individuals may or may not turn to illicit means to fulfill their basic needs. This could be one of many factors that may influence crime.
In Jefferson, the cost of living is 1.97% lower than the national average. A substantial cost of living can burden residents, particularly those with constrained financial means. When individuals contend with steep housing expenses, grocery bills, utility costs, healthcare and essential needs that strain their budgets, they may turn to criminal activities, such as theft or fraud, as a means of financial survival. Conversely, cities characterized by a more affordable cost of living may alleviate economic pressures, which could potentially lead to decreased crime rates.
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 Jefferson, the ratio of police officers and civilians per 1,000 residents stands at 2.12, 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.

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| Item | Jefferson | Wisconsin | National |
| Law enforcement employees (officers & civilians) | 17 | 9,355 | 558,732 |
| Police officers & civilians /1000 residents | 2.1 | 2.4 | 3.3 |
| State | Total offenders | Wisconsin /100K | National /100K |
| Wisconsin | 24,983 | 456 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Lake Ripley, WI | 1,978 | 39 | 162 | 201 |
| Ashippun, WI | 1,066 | 62 | 256 | 318 |
| Ixonia, WI | 1,915 | 63 | 263 | 326 |
| Cambridge, WI | 1,307 | 65 | 269 | 334 |
| Deerfield, WI | 2,648 | 82 | 342 | 425 |
| Waterloo, WI | 3,450 | 27 | 465 | 493 |
| Johnson Creek, WI | 3,143 | 98 | 408 | 506 |
| Jefferson, WI | 8,237 | 250 | 1,370 | 1,620 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Mayo, MD | 8,235 | 193 | 942 | 1,134 |
| Franklin, VA | 8,234 | 461 | 2,539 | 2,999 |
| Mansfield Center, MA | 8,240 | 221 | 779 | 1,000 |
| Inverness, IL | 8,231 | 14 | 402 | 416 |
| Minnetrista, MN | 8,230 | 45 | 343 | 388 |
| Jefferson, WI | 8,237 | 250 | 1,370 | 1,620 |