Immigration and Demographics Analysis

Last reviewed: July 2026

New to this? Start with the explainer: How Does Immigration Actually Affect an Economy? →

In 2025 the United States recorded negative net migration for the first time in half a century. The demographic engine the explainer described is now running in reverse, and the effects are showing up in the data.

In Brief

• For the first time in roughly 50 years, more people left the U.S. than arrived in 2025; net migration went negative.
• Multiple Federal Reserve banks now warn the working-age population may shrink without immigration, the exact mechanism from the explainer.
• Estimates of lost GDP growth and future output run into the trillions over the coming decade.
• Even the Labor Department warned of possible farm labor shortages, the quiet arithmetic reasserting itself against the loud politics.
• Whether this is worth it is a values question; that it carries an economic cost is now a measurement, not a prediction.

The explainer laid out a demographic engine: aging populations, shrinking workforces, immigration as the fast lever. In 2025 and 2026 the United States started running that engine in reverse, and did so at scale, recording its first negative net migration in about half a century. This is a rare chance to watch the mechanism operate in real time, in the direction few economies deliberately choose.

The workforce math turned negative

Federal Reserve researchers estimate net migration fell to roughly half a million people in 2025, down from over two million the year before, below the level needed to keep the working-age population growing. Several regional Fed banks have since noted that without immigration the prime-age labor force is set to stall or shrink. This is precisely the scenario the explainer described: with a low native birth rate, immigration was the lever holding the workforce up, and pulling it back lets the underlying aging show through.

The demographic engine doesn't stop when you reverse it. It just starts subtracting instead of adding.

The costs are showing up as measurements, not forecasts

Analyses now put numbers on it: estimates of GDP growth running roughly a percentage point lower than it would otherwise have been, and projections of trillions in cumulative lost output over the next decade. Strikingly, even the federal Labor Department warned in a 2025 filing that sharply reduced inflows risked labor shortages in agriculture, acknowledging that domestic workers were unlikely to fill those roles at current wages. That's the quiet arithmetic from the explainer surfacing inside official policy documents.

When the agency restricting immigration warns of the shortages it may cause, the math has entered the room.

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The values question is still open, the economic one is closing

Here's the honest framing. Whether lower immigration is worth its costs is a genuine values judgment: people weigh wages, cohesion, security, and culture differently, and reasonable citizens land in different places. What's no longer really in dispute is that there is an economic cost, because the demographic engine means fewer working-age people produce less and support fewer retirees. The debate should be about whether that cost is worth paying, not about whether it exists.

You can decide the price is worth it. You can't decide there's no price.

What to actually watch

Set aside the rhetoric on all sides and watch three things: whether the working-age labor force actually declines in the coming years, whether the sectors most reliant on immigrant labor (farming, construction, elder care) show sustained shortages, and whether wages in those sectors rise enough to pull in domestic workers, or whether the work simply goes undone. Those measurements, not the speeches, will tell you what the reversal actually cost.

The speeches will tell you how people feel. The labor force numbers will tell you what happened.

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References

• Immigration and Changes in Labor Force Demographics Federal Reserve Bank of San Francisco, November 2025.
• Declining Immigration and an Aging Population Are Reducing Breakeven Employment Growth Federal Reserve Bank of Kansas City, February 2026.