Data from the nationally representative 1976 Survey of Income and Education provide the opportunity to examine the joint effects of age, marital status, personal income, and the need for functional assistance on living arrangements of older unmarried white women. A particular interest in this research is testing the hypothesis that the effects of income and functional health are interactive. This hypothesis implies that the effect of functional disability on living arrangements is contingent on level of personal income. Log-linear model analyses indicate that, although the main effects of all independent variables except marital status are significant, none of the interaction effects are significant. Odds calculated under the best-fitting model show that an unimpaired older woman has seven times the chance of living alone as one who requires frequent assistance, whereas those in the lowest income group have only a quarter of the likelihood of living alone as someone in the highest income group.