Louisiana is third among states with the highest increase in delinquent mortgages. Cavan-Images/Shutterstock WalletHub ranked US states based on mortgage delinquency. Its list shows which states had the biggest increases in delinquent mortgages between 2025 and 2026. Vermont and Delaware had the highest increases, the analysis found. In recent years, the economy hasn't been kind to homeowners and those looking to buy. Many potential buyers simply can't afford to buy a home, with the average 30