The largest measures would have provided $475 million for roads and $296.5 million for courts and detention facilities. A separate $40 million proposition would have funded an elections and records facility, while $6 million was sought for parks and open space.

According to complete but unofficial results, Proposition A, the roads measure, failed with 62.59% against and 37.41% in favor. Proposition B, for courts and detention, was defeated 51.67% to 48.33%. Proposition C, the parks and open space measure, lost 53.32% to 46.68%. Proposition D, the elections and records facility, was rejected by the widest margin, with 69.97% opposed and 30.03% in support.

County officials had argued the bond was necessary to keep pace with the region's explosive growth. Collin County was the nation's second fastest-growing county between 2024 and 2025, according to the U.S. Census Bureau.

County Administrator Yoon Kim previously said the bond might not necessarily require a tax increase. He noted the county could choose to sell a different amount of bonds each year if revenue growth exceeded 3%, in order to keep the debt service rate steady.

The rejection leaves county leaders without the borrowing authority they sought for a slate of infrastructure projects. Roads funding was the largest single component, reflecting mounting pressure on transportation networks in one of the country's fastest-expanding regions. The courts and detention proposal would have expanded the county courthouse and jail, while the elections and records facility was intended to centralize and modernize election operations.

The outcome also raises questions about how the county will address growth-related needs without the bond funding. Officials have not yet indicated what next steps they will take.

All four propositions appeared on the same ballot and were defeated by margins ranging from about 3 percentage points to nearly 40 points. The results were reported after all precincts had completed their counts.