Compared to the other cities in California and cities in all other U.S. states, how safe is Arcata, CA? From the gauges displayed above, you will notice that Arcata, CA has been ranked safer than 34% of other cities in the state of California. In addition, Arcata, CA is safer than 28% of cities in the entire United States. To achieve these results, all California and United States cities were analyzed to determine how many locations had a lower crime rate than Arcata, CA. By studying this data, it was possible to determine that Arcata, CA is below average in safety when compared with other United States cities.