Crime in Altadena, California
Major crime in Altadena is 12% below the U.S. rate per resident: 6% lower for persons crimes and 13% lower for property crimes. Expected major crimes are down 9.2% from a year earlier.
Modeled estimates per resident, not counts of incidents. How we calculated this
Index: crimes per resident compared with the U.S., where 100 is the U.S. rate and 200 is twice it.
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Burglary stands out most, at 2.3 times the U.S. rate
Expected crimes per year in Altadena for each type, and the index against the U.S. rate per resident.
Citywide indexWhere the middle half of residents live
Property crimes
Social disorder
How crime varies across Altadena
The middle half of Altadena residents live in neighborhoods with a major-crime index between 62 and 111; the typical (median) resident's is 78.
- 0–5014.3%
- 50–10055.6%
- 100–20026.8%
- 200–4003.2%
- 400+0.0%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
Highest on weeknights
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 9.2% in a year; across California it fell 7.4%
Change in expected crimes, with California as a whole in gray. The past year uses the reporting agencies' year-to-date FBI data; 2031 is the model's projection.
Altadena against U.S. places with 25,000 to 50,000 residents
399 of the 960 other places of this size have a higher major-crime index than Altadena; the middle of the group is 77. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Altadena has a higher major-crime index than 3 of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Pasadena (2 mi), is 1.9 times Altadena's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Altadena
What are the most common crimes in Altadena?
By expected count, the most common persons and property crimes are burglary (about 152 a year), theft from vehicle (about 114 a year) and other larceny (about 113 a year). Compared with the U.S., burglary stands out most: 2.3 times the U.S. rate per resident.
How we calculated this
Each police agency's crimes, as reported to the FBI, are spread across the census block groups it serves using population, jobs, points of interest and, where available, local incident records. Altadena's figures add up its 34 block groups. The index compares crimes per resident with the U.S. rate.
- Altadena's published incident records inform the estimate for every neighborhood.
- 9.8% of residents live in block groups whose estimate has high confidence (80% interval within about 5x).
- Rates are per resident, so places where many people work or visit but few live, such as downtowns, airports and stadiums, can read high.
- Disorderly conduct and trespassing are modeled, because the FBI records them only through arrests.
- Residents: 40,240. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Altadena, California." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/ca/altadena
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Major-crime index, U.S. = 100
- Pasadena2 mi169
- La Cañada Flintridge4 mi88
- East Pasadena5 mi275
- San Marino5 mi106
- South Pasadena5 mi111
- East San Gabriel6 mi69
- La Crescenta-Montrose6 mi85
- Arcadia7 mi141