North Carolina counties increasingly ship municipal solid waste (MSW) long distances for disposal, which disproportionately burdens a small number of communities with the risks associated with living near municipal solid waste landfills. Communities that are able to ship their MSW further may benefit due to decreased exposure to the negative health and economic impacts of living near landfills. Nonetheless, potential inequities stemming from shipping distances of MSW have not been previously analyzed. A mixed-effects regression model was used to test whether the distance that North Carolina counties shipped MSW for disposal was explained by the racial composition, population density, and wealth level of the counties where MSW originated in fiscal year 2012-2013. The results show that higher county wealth levels, as assessed by median house value, were associated with significantly greater shipping distances for MSW disposal (type III F(1,378)=5.9, p=0.015). The counties with highest home values shipped their waste 3 miles further away, on average, than those with the lowest house values. The effects of racial composition were significant but complex: racial composition interacted with both population density and mass of waste shipped in affecting MSW disposal distances. In low- population-density counties, a higher minority population fraction was associated with large volumes of MSW being disposed of closer to the county of origin (shipping shorter distances), whereas the opposite was true in high-population-density counties. By focusing on MSW origin, these results add to the ongoing discussion about environmental injustices and MSW disposal.