This paper compares results from studies of gambling and problem gambling among indigenous groups in New Zealand and in North Dakota. The samples for each of these studies included substantial numbers of indigenous respondents, and the methods used in these studies were similar enough to allow comparisons of Caucasian and indigenous groups from these two distinct cultures. Analysis shows that gambling involvement, gambling expenditures, and gambling-related problems are far higher among indigenous respondents than among Caucasian respondents in both New Zealand and North Dakota. These comparisons suggest that differences between indigenous peoples and Caucasians in gambling behaviors may be due to factors distinct from culture or milieu.