We all know healthy food is good for us, but eating well can be tricky — especially when the healthiest options cost so much more than the less nutritious stuff.

To find out where Americans are paying the most to eat healthily, PlushCare compared the prices of thousands of healthy and unhealthy in-house brand Target food products in each US state.

Hawaiians are paying the biggest premium for healthy food overall, at 27.89 percent above the national median cost, followed by New Yorkers (17.01 percent).

In Colorado, on the other hand, healthy food is 2.36 percent cheaper than the country's average. People in Nebraska (-2.27 percent) also pay well below the average price for healthy groceries.

In addition to facing the biggest price premium, residents of Hawaii also face the largest price disparity in the study, with the state's healthy food costing 3.70 times more than its unhealthy food.

The smallest jump was found in Oregon, where people pay just 2.94 times more for healthy food than unhealthy food. For reference, the average difference between healthy and unhealthy food in the US is 3.02.

When it comes to the annual cost of healthy eating, Hawaii tops the list once again, at $14,525 compared to the US average of $10,614. New York ($12,239) is the second-most expensive state to eat healthily for a year, while Colorado ($10,268) is the cheapest.

PlushCare also compared the yearly cost of healthy food to the median salary in each state to determine how affordable healthy eating is across the US. Perhaps unsurprisingly, the least affordable state is Hawaii, where the average worker has to spend 28.76 percent of their earnings to eat healthily for a year.

Conversely, Washington is the most affordable place overall, with a year of healthy eating costing just 17.38 percent of the state's average salary of $59,925.

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Via PlushCare.