Postcode · South Australia · 2025-26
Crime in postcode 5221
Postcode 5221 covers American River, Ballast Head and Muston in South Australia. Police publish crime figures by council area, not by postcode, so this page shows the council area the postcode falls in: Kangaroo Island.
Suburbs in 5221
Recorded crime in the council area
Kangaroo Island
Low309 of 362 nationally · 44 of 69 in SA · 5,212 residents
- Violent 422 per 100k
▼ -4% vs five years earlier
- Property 1,190 per 100k
▼ -55% vs five years earlier
- Break-ins 192 per 100k
▼ -68% vs five years earlier
Recorded offences per 100,000 residents, 2025-26. Covers American River, Ballast Head, Muston in postcode 5221.
The Crime Score (0 to 100) ranks each council's three-year offence rates against every Australian council, weighted towards serious offences; 50 is the national middle. It describes recorded crime, not personal risk. See the council rankings.
Questions about postcode 5221
What is the crime rate in postcode 5221?
Recorded crime is published for the Kangaroo Island council area, which covers postcode 5221. In 2025-26 it recorded 422 violent offences, 1,190 property offences and 192 break-ins per 100,000 residents.
How does postcode 5221 compare with the rest of Australia?
The Kangaroo Island council area's violent crime rate is 67% below the national rate and 67% below the South Australia rate (422 against 1,280 nationally, 2025-26). Its Crime Score of 25 ranks 309 of 362 councils nationally, where 1 is the highest recorded crime.
Which suburbs are in postcode 5221?
American River, Ballast Head and Muston.
Where do these figures come from?
Offence counts come from South Australia's official police or crime statistics agency, standardised to national offence categories; rates use ABS estimated resident population. Figures describe recorded offences, not personal risk, and recording practices differ between states.
Nearby postcodes
- 5211 Back Valley
- 5212 Port Elliot
- 5213 Middleton
- 5214 Currency Creek
- 5220 Parndana
- 5222 Antechamber Bay
- 5223 Kangaroo Island
- 5231 Chain of Ponds
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