Overview
- The IFS analysis of 2020 Census data finds very large local variation in marriage and married-parent households, with gaps of roughly 70 percentage points between the lowest and highest areas and Detroit City PUMAs as low as about 13% married householders.
- The report groups places with low shares of married householders as “married-family deserts” and high-share suburbs as “married-family gardens,” using PUMAs, which are geographic units of roughly 100,000 to 200,000 people, to show neighborhood-scale patterns.
- IFS researchers frame the maps as consequential for children because they tie the share of two-parent households to daily peer environments, supervision and stability in ways that past studies by Raj Chetty have linked to local upward mobility.
- The study stresses that high local income does not always mean higher marriage rates, pointing to parts of Manhattan with under 28% married householders and citing drivers such as cultural norms, housing affordability, and residential sorting.
- News coverage has largely highlighted the mobility and cultural implications reported by IFS, and the maps could shape debates about housing, local services and where young families choose to settle.