What is the crime rate in Arnold, MO?

In 2025, the Arnold Police Department reported 16 violent crimes and 175 property crimes to the FBI.

That is 76 violent and 831 property crimes per 100,000 of the 21,068 residents it serves.

Across Missouri the rates were 426 and 1,690.

Nationally they were 330 and 1,552.

Figures last updated on November 12, 2026.

Violent per 100,000: 76
Property per 100,000: 831
Violent crimes: 16
Property crimes: 175

Crime reported by the Arnold Police Department, 2023 to 2025

Offenses known to law enforcement, reported to the FBI; rates per 100,000 residents of the area the department serves
Year	Violent crimes	Violent per 100,000	Property crimes	Property per 100,000	Residents served
2023	25	120	406	1,948	20,837
2024	32	151	313	1,481	21,128
2025	16	76	175	831	21,068

Violent crimes reported went from 25 in 2023 to 16 in 2025.

Property crimes reported went from 406 in 2023 to 175 in 2025.

In a small town a handful of incidents moves these numbers a long way, so one year’s change says little on its own.

Arnold against Missouri and the nation

Crimes per 100,000 residents, 2025
	Violent crime	Property crime
Arnold	76	831
Jefferson County	215	758
Missouri	426	1,690
United States	330	1,552

These are rates per resident; they are not adjusted for visitors, commuters or the size of the area, which raise or lower a town’s figures without changing anybody’s risk.

Crime reported in places near Arnold, 2025

Each place’s own police department; rates per 100,000 residents served
Place	Distance	Violent per 100,000	Property per 100,000
Arnold	—	76	831
Sunset Hills	7.6 mi	99	1,289
Lakeshire	8.0 mi	66	530
Crestwood	9.1 mi	107	1,377
Valmeyer	9.2 mi	0	331
Pevely	9.7 mi	311	850

Neighboring departments count the same offenses the same way, but their areas, populations and visitors differ, so a difference between two towns is a starting point for a question, not an answer.

How to read these numbers

These are offenses known to the police and reported to the FBI’s Uniform Crime Reporting Program: crimes nobody reported, or that a department did not record, are not in them.

Violent crime is murder and nonnegligent manslaughter, rape, robbery and aggravated assault; property crime is burglary, larceny-theft, motor vehicle theft and arson.

A department reports the crimes in the area it polices, which can differ from the town’s boundaries, and the FBI estimates the population it serves.

The FBI asks that these figures not be used to rank places or to judge how safe a neighborhood is: crime depends on many local factors, and the counts describe a whole town, not any street or home.

A year is shown only when the department reported all twelve months.

FBI: Uniform Crime Reporting statistics and their proper use

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