Multiple studies have found that neighborhood conditions and characteristics impact people'shealth. The present study examines the association of household crowding during pregnancy on term low birth weight. This cross-sectional study was conducted using secondary data assembled from the California Department of Public Health Electronic Birth Registration System (EBRS) and the USC Neighborhood Data for Social Change. A total of 96,092 mother-child pairs were used in the analysis. It was found that there is not a statistically significant association among household crowding and TLBW (OR: 0.8, 95% CI: 0.5, 1.5; aOR: 0.45, 95% CI: .09, 2.1). There was no statistical significance found when evaluating the association when comparing among Latinas born in the U.S. (OR: 0.96 95% CI: 0.85, 1.1; aOR: 0.03, 95% CI: <0.001, 2.1) and those foreign-born (OR:0.95, 95% CI: 0.82, 1.1; aOR: 0.26, 95% CI: .01, 5.7). Further exploration needs to be conducted, ideally using primary data to investigate this association.