Americans are cutting back on how much money they spend. More than two-thirds of U.S. adults say they're making an effort to reduce their monthly budget in order to save more, according to a new survey from consumer-financial company Bankrate. But saving isn't the only reason they're cutting back.

While 36 percent say their priority is saving, 24 percent say they're curbing their spending because their . About 17 percent say they have , 11 percent say they're and 5 percent are concerned about job security.

Trying to spend less makes sense for most people, regardless of the reason. A survey from personal-finance website GOBankingRates found that 42 percent of Americans have , while a Northwestern Mutual study found that a third of Americans had less than $5,000 for retirement and 21 percent . And only 39 percent of adults say they have enough in savings to handle a .

Meanwhile, in all but two states, and .

Bankrate: Biggest reason to spend less

Households earning more are most likely to limit their spending in order to save. The survey finds that "households with incomes of $50,000 per year, or more, were more likely to say they needed to limit their spending to save," and "also more likely to , or having no desire to spend more money."

That's compared to households with incomes under $30,000, which are more likely to cut back due to worries about the economy.

Younger Americans also than their older peers. About 45 percent of millennials who are cutting back are doing so to save, versus 41 percent of those in Generation X.

"Older Americans aren't showing the same dedication," says Bankrate. "Stagnant income was the top response for Baby Boomers and the Silent Generation."

Bankrate: Generation most likely to limit spending

Whatever the reason for cutting down on spending, there are some strategies that could help you out, " ," the survey says.

"After subtracting fixed monthly expenses" like rent or a car payment from your income, allocating funds to variable expenses "will give a clearer picture of how much you should be spending each month. Experts recommend taking a monthly average of variable costs to determine how much you'll need to budget for; after, evaluate the categories and see where you can cut costs."

Tom Corley, author of "Rich Kids: How to Raise Our Children to Be Happy and Successful in Life," recommends the , in which you live off 80 percent of your paycheck and save the rest. "It's a simple rule," he writes, that you can follow no matter how much you make.

Whatever your income and expenses look like, know what you spend each month and create a budget. With his budget, this customer service rep . And with theirs, .

Here are some additional tips on how to .

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