The Minimum Wage Experiment: Cities That Raised It, and What Happened

The barista at the Capitol Hill coffee shop has worked the morning shift since 2018, and every January she watches the minimum wage printed at the top of her pay stub climb again. It was $15 an hour when she started. By 2025 it had crossed $20. Her own wage has never been the number that matters most — tips decide that — but the floor beneath her keeps rising, and she says it shows up in the rent she can pay, the size of the grocery bill, and the fact that she no longer works a second job.

Seattle was the first American city to commit to a $15 minimum, in 2014, and it has since become the most studied wage floor in the history of labor economics. San Francisco, Oakland, Denver, Chicago and a dozen other cities followed, pushing minimums to $18, $19 and $20 an hour — levels that would have seemed like political fantasy a generation ago.

Twelve years into the experiment, the research has been surprisingly calm. Studies of Seattle and San Francisco found modest price increases at restaurants and grocery stores, little or no measurable loss of employment, and real wage gains concentrated among the lowest-paid workers. The results have settled a long, bitter argument over whether raising the minimum wage destroys jobs, and they now shape the next fights: over tipped wages, subminimums for young and disabled workers, and automatic inflation indexing that is quietly turning the minimum from a political number into a mechanical one.

The Seattle study, and the fight over it

The argument over Seattle began before the first $15 paycheck was issued. In 2017, a team at the University of Washington released a working paper on the city's first phase-in, from $9.47 to $13 an hour, and the finding was not what advocates expected. Hourly wages rose, but hours fell enough that the typical low-wage worker took home about $125 less each month, the authors estimated. Headlines followed, and critics of the minimum wage treated the paper as proof that the whole project was a mistake. The paper, circulated before peer review, also became a test case for how quickly economic findings travel.

The study's authors were careful about their own conclusion, and so were their critics. Economists at the University of California, Berkeley, who had studied San Francisco's minimums for years, argued that the Seattle comparison group — workers outside the city, often in very different labor markets — made the negative result hard to trust. Re-running the numbers with different comparisons, they found no employment loss. A later University of Washington analysis found that the negative effects faded after 2016, when the minimum reached $15 and the labor market tightened.

What survived the fight was a narrower, more interesting claim. The two sides still disagree about the size of the employment effects, but they converged on something close to a consensus: at the levels cities have actually tried — $13 to $20 an hour — the wage gains at the bottom have not been offset by large job losses.

"The fear was that every dollar of minimum wage would cost jobs," a labor economist who has studied city wage floors for a decade said. "The evidence at the levels cities have actually tried says that fear was mostly wrong."

From $15 to $20: how the floor moved

The modern city minimum began with a strike. In late 2012, fast-food workers in New York walked off the job demanding $15 an hour, a figure chosen for its political reach as much as its economics, and the Fight for $15 spread to hundreds of cities within a year. Seattle's city council passed the first $15 ordinance in June 2014, phasing it in over several years with a two-tier design: companies with more than 500 workers owed the full minimum by 2017, while smaller employers had until 2021 and could count tips toward a lower obligation.

San Francisco voters approved a $15 minimum in 2014, phased to 2018, and a string of Bay Area cities — Oakland, Berkeley, Emeryville, Richmond — followed with floors between $15 and $20. The two-tier Seattle structure produced an odd side effect that still exists: a worker at a 400-person restaurant can legally earn less per hour than one across the street at a 600-person chain, for the same job. The city has kept the design, with the large-employer minimum now above $20 and the small-employer rate several dollars lower.

What the broader evidence shows

The Berkeley group, through its Center on Wage and Employment Dynamics, has published studies of Seattle, San Francisco, Oakland, Chicago and several smaller cities. The pattern is consistent: wages rise at the bottom, employment among low-wage workers holds roughly steady, and the gains are largest for the workers closest to the floor — the ones who, in most states, could still be earning $7.25.

The federal number matters because it anchors the whole story. According to the Economic Policy Institute, the $7.25 federal minimum now buys about a third less than it did when it peaked in real terms in 1968. Roughly 1 percent of hourly workers in the United States earn at or below it, according to the Bureau of Labor Statistics, and those workers are heavily concentrated in the South, where few cities or states have set their own floors. The city experiments happened in places that could afford to be generous. The purchasing-power math is the same one that quietly decided those experiments: a minimum that does not rise is a minimum that falls.

That geography matters. Seattle, San Francisco and the Bay Area cities did not just raise the minimum; they raised it in tight labor markets, with strong unions and a political culture that supported the policy. Whether the same results would appear in a small city in a low-wage state is a genuinely open question. A handful of experiments in Kansas City, St. Paul and Chicago suggest the pattern holds, but the evidence there is thinner.

The cost of a higher floor

The most visible cost of the city minimums showed up on menus. Economists who studied Seattle estimated that restaurant prices rose roughly 0.7 percent for every 10 percent increase in the minimum wage — real, but far smaller than the 3 to 5 percent menu jumps opponents predicted when the ordinance passed. A later study found prices at full-service restaurants in Seattle rose by a few percent over the phase-in period, an increase most customers absorbed without changing how often they ate out. Grocery prices moved less, by most estimates.

Businesses absorbed the rest in narrower margins, slower hiring and, in some cases, shorter hours for managers. The owner of a 40-seat restaurant in San Francisco's Mission District, who asked not to be named, said the minimum's rise from $15 to about $19 over six years forced him to raise prices twice and cut one prep cook position. He also stopped scheduling himself, working the line on Friday and Saturday nights instead. The restaurant is still open, he notes, which was not guaranteed when the ordinance passed.

What the research did not find is worth saying plainly: no wave of closures, no exodus to the suburbs, no measurable drop in the total hours available to workers who wanted them. A study of Seattle's small businesses found the ordinance had no detectable effect on the number of firms that opened or closed. That result surprised even some supporters of the policy.

The state-level push

In 2026, the action has moved from city halls to state capitols. California's minimum is about $17.50, Washington's about $17.30, Massachusetts's $15.50, Colorado's about $15.00 — and New York's varies by region, with New York City above $16.50. More than a dozen states plus the District of Columbia now adjust their minimums automatically for inflation, according to the Economic Policy Institute's minimum wage tracker, which means the numbers change every January without a single legislative vote.

Selected state minimum wages, 2026, per the Economic Policy Institute's minimum wage tracker.

State	2026 minimum	Notes
California	about $17.50	indexed; some cities set higher floors
Washington	about $17.30	indexed
Massachusetts	$15.50	indexed
Colorado	about $15.00	indexed
Florida	$14.00	scheduled to reach $15 in September 2026
New York	about $16.50 in New York City	indexed; varies by region

Voters, not legislatures, drove much of this. Ballot measures in Missouri, Alaska and Massachusetts passed in November 2024, raising their floors toward $15 and, in most cases, indexing them to inflation. Florida voters did the same in 2020. The pattern of the past decade is consistent: when the question goes directly to voters, the minimum rises; when it is left to state legislatures, it usually does not.

Tipped wages and subminimums

The new frontier is not the headline minimum. It is the wages underneath it. The federal minimum for tipped workers has been $2.13 an hour since 1991 — 35 years without a change — and employers may count tips toward the $7.25 floor. Seven states have abolished the tipped subminimum entirely: California, Washington, Oregon, Nevada, Montana, Alaska and Minnesota. In those states, a server's hourly wage must meet the full minimum before a single tip is counted.

The tip credit is now the most contested piece of minimum wage law. Chicago began phasing out its tipped subminimum in 2023, and Michigan's legislature followed with a compromise that raises the tipped minimum toward half of the regular minimum over several years. Restaurant industry groups fought both changes, warning that menu prices would jump and diners would stop tipping. A server at a River North steakhouse in Chicago says her hourly base has risen every July since the phase-out began, and she keeps more of her earnings when the dining room is slow. Early data show Chicago prices rising but no collapse in restaurant employment.

Two smaller subminimums persist largely unnoticed. Federal rules allow employers to pay workers under 20 a youth wage of $4.25 for their first 90 days, a provision most states have left on the books. And under Section 14(c) of the Fair Labor Standards Act, some employers still hold certificates to pay disabled workers below the minimum wage; fewer than 50,000 workers are covered today, down from roughly 300,000 in the 1990s, as states including Virginia, Colorado and California have moved to end the practice.

Indexing, the quiet revolution

The most consequential change may be the least noticed. When a minimum is tied to the consumer price index, the annual increase is mechanical — no campaign, no hearing, no ballot. Indexing solves the problem that created the federal floor's slow decay: the $7.25 minimum did not lose a third of its value because anyone voted for that, but because no one voted at all, year after year.

Indexing has critics on both sides. Business groups argue that automatic increases remove any chance to pause when a local economy stumbles. Some labor economists counter that the increases are modest — typically 2 to 4 percent a year — and that the alternative, letting the minimum erode, is a slow pay cut for the workers who can least afford one. The direction of travel is clear: more floors are indexed now than at any point in American history. A handful of proposals would go further, pegging the floor to median wages so that it rises with the economy rather than just with prices.

The federal floor remains $7.25. The Raise the Wage Act, which would have lifted it to $15 over several years, passed the House in 2019 and stalled in the Senate. Proponents promise to reintroduce it; opponents note that the federal floor now applies directly to only about 1 percent of hourly workers, since most states and cities sit far above it. Both statements are true, and both explain why the political energy has migrated to the states.

A newer idea sits beyond both indexing and the tip credit: sectoral wage boards. California created a fast-food council that set a $20 floor for workers at chains with 60 or more locations in 2024, and a healthcare wage board is phasing hospital and clinic pay to $23 and $25 an hour. The council's first decision was itself the subject of a lawsuit. New York experimented with a fast-food board a decade ago. The boards set different floors for different industries, which makes them politically durable — and, to their critics, economically arbitrary.

What it means for your paycheck

For individual workers, the city experiments changed more than the floor. They changed the reference point. A wage that looked like a win in 2019 — $18 an hour, say — is now close to the legal minimum in Seattle or San Francisco, so the question is no longer whether you clear the floor but how far above it you sit. Pay compression is the quiet consequence: when the minimum rises, the gap between the least-paid and the next tier narrows, and workers one rung up often find their raises disappearing into catch-up.

That is why the numbers in this article matter more than the headlines. Use the salary converter to see what your annual pay looks like as an hourly rate and compare it with the floor in your state or city; if the gap is small, that is information for your next raise conversation, not just a curiosity. The salary inflation calculator does the same job for real wages: a 4 percent raise in a year of 3 percent inflation is a 1 percent gain, whether you earn $15 an hour or $150,000 a year.

Workers in high-floor states should also check their classification. The minimum applies to hourly workers; salaried workers exempt from overtime rules are a separate question, and the two systems interact in ways that surprise people. A manager earning $55,000 a year in Seattle can take home less per hour, in a busy week, than the cook she supervises. The comparison is uncomfortable, and it is increasingly common.

What to watch next

Three things are worth watching in the next two years. The first is the 2026 ballot season: minimum wage measures are expected in several states, and the indexed states will produce their routine January increases regardless. The second is the tip credit: as Chicago's phase-out matures and Michigan's begins, data on prices, employment and tipping will show whether the last big subminimum can survive. The third is the federal floor, which will remain $7.25 until Congress acts — and the longer it sits there, the more it becomes a regional question rather than a national one.

The deeper lesson of the city experiments is that wage floors are policy, not physics. Twelve years ago the question was whether Seattle could raise its minimum to $15 without collapsing. The city did it, then went further, and the research — disputed, revised, and eventually convergent — found a world that mostly kept working.

The barista on Capitol Hill still watches the January number climb. Her pay stub this year shows a minimum above $20, and she no longer needs the second job that paid her rent in 2019. The experiment, twelve years in, is not over. The results so far suggest the floor can keep rising — and the workers closest to it will feel the difference first.