Federal Transit Funding Works Best in Small Cities, Study Finds

Imagine living in a town of 75,000 people where buses actually show up on time and trains connect you to nearby cities without owning a car.

That future just got more realistic. A new study published in Transportation Research Part A reveals that federal funding for public transit creates the biggest impact in smaller cities, not the major metros that usually grab headlines.

Researchers from American and Chinese universities tracked 417 urban areas across the United States from 2010 to 2019. They wanted to solve a puzzle: why do some cities have thriving transit systems while others force residents to drive everywhere?

The answer surprised them. Federal funding works better in small and midsize cities than in places like New York or Chicago.

"In the largest metropolitan areas, an additional dollar generates roughly one-third as much new ridership as it does in a small or midsize city," explained Kailai Wang, assistant professor at the University of Houston and study co-author. In towns with populations between 50,000 and 199,999, every federal dollar stretches further because these leaner transit agencies can expand their bus fleets and services more efficiently.

The researchers tested three different models to isolate how federal, state, and local funding each affected ridership and service availability. While all funding sources matter, federal support emerged as the single strongest factor determining whether a transit system thrives or barely survives.

The Ripple Effect

When smaller cities gain reliable transit, the benefits spread far beyond the people riding buses and trains. Traffic congestion drops as more commuters leave their cars at home. Air quality improves when fewer vehicles clog the roads. Low-income residents suddenly have affordable access to jobs, healthcare, and education they couldn't reach before.

These improvements create a positive cycle. Better transit attracts new residents and businesses, which generates tax revenue that supports even more city services. A single federal investment can transform an entire community's trajectory.

The study doesn't suggest abandoning major metros that depend on federal transit dollars. New York's subway and San Francisco's BART still need robust support. But the research shows that spreading federal funding to smaller, developing cities creates outsized returns on investment.

Right now, thousands of American towns offer zero alternatives to driving. The infrastructure already exists to change that through strategic federal funding.

For a country spending over $1.5 trillion annually on defense, directing a fraction of those resources toward small-city transit systems seems both affordable and transformative.

The path to better public transportation in America doesn't require inventing new technology or waiting decades for change—it just needs the political will to fund what works.