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

NOTE: Gray indicates insufficient data or a suppressed estimate.

Zip codes in Baltimore City and parts of Prince George's County exhibit the lowest married-couple household rates, frequently falling below 30%, forming a distinct cluster of dark purple in the central and southern portions of the state. In contrast, exurban and rural zip codes in Howard, Carroll, Frederick, and the western panhandle counties consistently reach 60–80%, with several bright yellow pockets indicating the highest concentrations of married-couple households. The Eastern Shore displays notable internal variation, with some zip codes near Salisbury and Cambridge dropping into the 20–30% range while surrounding rural areas trend considerably higher.

Data: U.S. Census Bureau, 2023 ACS

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