A three-bedroom apartment in New York City costs $5,495 a month — $65,940 a year. Child care for a two-year-old requires parents to earn $334,000 to afford it comfortably, according to the city comptroller’s analysis. Daycare in San Jose runs $25,000 per child. These are not abstract figures from a policy paper. They are the arithmetic that is emptying America’s largest cities of children, and they represent the most comprehensive record available of what happens when a generation is promised that work and education will be enough, and then arrives to find that the city where they built their life is no longer a city for their children.
This is not a birth-rate story. It is a family-budget story with a policy-history timeline, and the arithmetic of betrayal is unforgiving.
The math that moves families out
Start with the families who actually left. Raheim Bazile was paying $750 a month to rent a room in Queens — about a quarter of his take-home pay as a truck driver for the U.S. Postal Service. He applied for affordable housing through the city’s lottery but never landed a unit. When he got engaged, he and his fiancée started planning to leave immediately. They settled in Easton, Pennsylvania, a city of about 30,000. Their son was born earlier this year. “Here, I feel much lighter,” Bazile told the Journal.
Ernie and Samantha Solis, both born and raised in the San Jose area, could not buy a home on their combined salaries — he is a firefighter, she was working — while daycare ran $25,000 per child per year. They left for Star, Idaho, a small town near Boise. Ernie now flies into San Jose every Monday, sleeps in free dorms for firefighters during the week, and returns to Idaho on Friday. He commutes by airplane because the city his job serves priced out the family that job was supposed to support.
The data confirms the pattern at scale. Children under five in large cities have fallen 15% over the past decade, more than double the 7% national decline. Births in large urban counties dropped 18% between 2010 and 2024, the sharpest fall of any county type. In New York, the city has lost a net 80,000 households of people aged 30 to 54 who are married or have at least one child under 18 since 2000, a decline driven by middle-income families. Over the same period, New York gained a net 670,000 households of single people or families without children.
That is not a demographic shift. That is a structural replacement. The families who need public schools, who need three-bedroom apartments, who need the pediatrician and the block party and the school-bus route, are being arithmetically driven out and replaced by affluent adults who need none of it. The city still functions — it just no longer functions as a place to raise children.
Not every city has made this choice. Thirteen of the 38 largest cities saw the number of children grow, and those cities — many in the Sunbelt, and notably the fastest-growing small cities in Texas — are often relatively affordable for middle-class families. The children are not disappearing from America. They are disappearing from the cities that have decided families are too expensive to keep.
The natural experiment that proved the point
The most important data in this story is not the Census analysis. It is what happened when Congress briefly made the math work differently.
During the pandemic, the federal government expanded the Child Tax Credit and sent monthly payments to families across the country. The Center on Budget and Policy Priorities found that child poverty fell by more than 40%, lifting 4.3 million children above the poverty line annually. When the expanded credit lapsed, poverty returned to baseline almost immediately. My piece on the CTC’s structural starvation of children documents the legislative record in detail, but the conclusion is the same: 4.3 million children. That was the size of the rounding error Congress decided not to fix.
The pattern tells the story more honestly than any policy brief. When federal support arrived, families could afford to have children and to live where the jobs were. When that support was withdrawn, the arithmetic became impossible again, and the cities emptied of young families. The birth rate did not fall because women suddenly decided not to have children. The birth rate fell because the cities where they built their lives made it financially irrational to have them.
The promise and the betrayal
Anne Helen Petersen diagnosed the condition precisely in Can’t Even: millennials internalized the always-on optimization regime as the price of stability, then watched the stability evaporate anyway. The millennial generation was told that education and hard work would be enough — that if you got the degree, found the career, and built the household, the city would hold you. That promise required affordable housing. It required childcare that did not cost more than a mortgage. It required public schools funded at a level that kept pace with the families they served. It required parental leave that did not require stacking PTO against an unfinished healing body. Every piece of that infrastructure has been dismantled, one policy choice at a time.
The Catholic Social Teaching tradition that shaped my own formation in Lansdale — a town where the parish school was the neighborhood anchor because families could still afford to live there — names this with a precision the policy vocabulary lacks. Pope Francis wrote in Fratelli Tutti: “If a society is governed primarily by the criteria of market freedom and efficiency, there is no place for such persons” — the poor, the disabled, the dependent, the young — “and fraternity will remain just another vague ideal.” This is the same calculation the city comptroller drew up in dollars and cents: a city governed by efficiency alone has no room for a median-income family with young children. The city councils and state legislatures governing these metros have made exactly this choice: efficiency over children, tax revenue from affluent childless adults over the public goods that families need. It is the drained-pool argument that Heather McGhee traced through American public goods, applied to the most intimate good a city can offer — the right to raise a family where you work.
The arithmetic catches up
Fewer children means fewer students in public schools, often one of the largest employers in many cities. Economists warned the Journal that the real risk is that family decline becomes part of a broader population decline and erosion of a city’s tax base. The places replacing families with affluent childless adults are avoiding this fate — for now. But the arithmetic catches up. A city that empties of children empties of the future workforce, the future taxpayers, the future neighbors. The schools contract. The tax base narrows. The block parties stop.
You can’t run a city without families. You can’t raise a family in a city that has been structurally designed against them. Taylor Swift cataloged the lesson that America’s care infrastructure has been sending to the next generation for years: You’re on your own, kid. The friendship-bracelets line — the only safety net is the lateral one, the other parents in the group text — is the redemptive turn, because it acknowledges what the policy record makes clear. Until the math changes, the children will keep leaving, and the cities that let them go will eventually discover what they cost.