U.S. voters are evenly split on the merits of building President Donald Trump’s border wall — but they strongly support “building a fence in high crime areas along the U.S.-Mexico border,” according to a new poll.

When the panel of 1,001 registered voters was asked if they “favor building a wall across the entire U.S. border,” the response was 49 percent support and 51 percent oppose.

But when the panel was asked January 12-13 for their views on “building a fence in high-crime areas along the U.S.-Mexico border,” the positive response spiked to 69 percent yes versus 31 percent no.

Also, the fence option showed a lopsided result of 39 percent “strong support” and 15 percent “strong opposition.”

The poll was funded by The Hill and conducted by Harris.

The anti-crime fence is favored by 90 percent of Republicans, 55 percent of Democrats, and 45 percent of “strong liberal” respondents.

It is backed by 75 percent of “whites,” 56 percent of African-Americans, and 58 percent of Latinos, plus 80 percent of Midwesterners, 69 percent of East Coast voters, 73 percent of suburbanites, and 72 percent of people with college degrees.

The “high-crime” modifier to the poll likely allowed Democrats to temporarily disregard partisan pressure to denounce any wall plan pushed by President Trump.

Trump might be trying to work around the partisan pressure and has recently shifted his language to stress the border-region danger from cartels, drugs, and traffickers, rather than from illegal migrants as a whole.

Business groups and Democrats tout the misleading, industry-funded “Nation of Immigrants” polls which pressure Americans to say they welcome migrants, including the roughly 670,000 DACA illegals.

The alternative “priority or fairness” polls — plus the 2016 election — show that voters in the polling booth put a much higher priority on helping their families, neighbors, and fellow nationals get decent jobs in a high-tech, high-immigration, low-wage economy.

Four million Americans turn 18 each year and begin looking for good jobs in the free market.

But the federal government inflates the supply of new labor by annually accepting 1 million new legal immigrants, by providing work-permits to roughly 3 million resident foreigners, and by doing little to block the employment of roughly 8 million illegal immigrants.

The Washington-imposed economic policy of economic growth via mass-immigration floods the market with foreign labor, and also spikes profits and Wall Street values by cutting salaries for manual and skilled labor offered by blue-collar and white-collar employees. It also drives up real estate prices, widens wealth-gaps, reduces high-tech investment, increases state and local tax burdens, hurts kids’ schools and college education, pushes Americans away from high-tech careers, and sidelines at least 5 million marginalized Americans and their families, including many who are now struggling with opioid addictions.

The cheap-labor policy has also reduced investment and job creation in many interior states because the coastal cities have a surplus of imported labor. For example, almost 27 percent of zip codes in Missouri had fewer jobs or businesses in 2015 than in 2000, according to a new report by the Economic Innovation Group. In Kansas, almost 29 percent of zip codes had fewer jobs and businesses in 2015 compared to 2000, which was a two-decade period of massive cheap-labor immigration.