The linkage between NHL morbidity and residence near heavy roads is analyzed among the Jewish population of the Haifa Metropolis, Israel. The addresses of 1436 patients (94.5% of all cases, 1995-2004) were geocoded. The geographic distribution of NHL patients was adjusted by the overall density of population in the study area. The analysis indicates steady decline in the "density adjusted" numbers of patients as a function of increasing road distances (P<0.01). Differences between genders/age groups were not found. The much higher occurrence of NHL in areas near main roads may be indicative of disease risks.