Pre-eclampsia and gestational hypertension affect over 1 in 8 pregnancies in the United States. Gestational hypertension differs, in part, from pre-eclampsia by not being associated with proteinuria. However, it is unclear whether these 2 conditions differ in their risk of subsequent kidney disease. We studied the postpartum risks of kidney disease, comparing individuals with a history of gestational hypertension with those with prior pre-eclampsia.