The authors analyzed data on electric fields from a prior study of occupational magnetic field exposure and leukemia risk conducted in Los Angeles County, California, in 1972–1990. Ranking of exposure differed somewhat for magnetic and electric fields. The odds ratios were 1.22 (95% confidence interval (CI) 0.80–1.86) and 1.15 (95% confidence interval 0.78–1.72) for medium and high exposure categones, respectively, and there was no clear evidence of an exposure-response relation (odds ratio for 10 V/m increase=1.05, 95% CI 0.95–1.16). Although not conclusive, our analyses provide little support for an association between occupational electric field exposure and leukemia. Am J Epidemiol 1997;146:87–90.