Married Couple (% of all Households) by Zip Code (ZCTA5) — South Dakota

NOTE: Gray indicates insufficient data or a suppressed estimate.

Zip codes in the eastern and north-central portions of South Dakota generally exhibit higher married-couple household rates (60–80%), consistent with rural agricultural communities, while several zip codes in the south-central region and areas overlapping the Pine Ridge and Rosebud reservations display notably low rates (below 30%), reflecting distinct demographic and socioeconomic conditions. Urban centers such as Sioux Falls and Rapid City contain pockets of lower married-couple percentages relative to their surrounding suburban and rural zip codes, likely driven by higher concentrations of single-person households and younger renters. A scattering of yellow-shaded zip codes (75–80%+) appears throughout the western and central parts of the state, suggesting isolated rural communities with exceptionally high marriage rates.

Data: U.S. Census Bureau, 2023 ACS

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