In gregarious mammals, female philopatry promotes the formation of local lineage associations, but the extent of this effect is unclear for most solitary mammals, including raccoons. The current study examined 839 raccoons captured 1,870 times on a 13.8-km2 study area in southwestern Tennessee. The data did not support the prediction that closely related raccoons would remain geographically clustered over multiple years. The distance between the 71 pairs of full sibs detected by microsatellite analysis was <1 km for 64.7% of the pairs but >69 km for 7.1% of the pairs, with a mean of 7.0 km. Rarely did sib groups shift locations together, comprise more than three individuals, or remain intact in the same vicinity for more than a year. The spatial dispersion among closely related raccoons was greater in males than in females, in older adults than in younger adults, and during dry years than during wet years. These patterns of dispersion would not facilitate the development of gregariousness but could speed the spread of key diseases. Further study is needed to understand these patterns and effectively manage raccoons in the southern United States where multiannual fluctuations in environmental conditions, such as precipitation, occur.