How an Iowa Judge Impacted Local Government Across the Nation
Vol. IV. No. 47 - The First Lesson Taught In City Management
Why does Piqua have five elected offificals when Troy has over a dozen? Why does West Milton get to decide how its council is elected while Covington doesn’t have that same flexibility? The answer comes down to one legal doctrine most residents have never heard of, but one that shapes almost every decision your local government makes: Dillon’s Rule.
Dillon’s Rule is the first lesson in City Management 101, and it’s worth every resident understanding it too. Named after John Forrest Dillon, an Iowa judge from the 1800s, the rule says local governments can only do what the state explicitly gives them permission to do. If there’s any doubt about whether a city has the authority to act, Dillon’s Rule defaults to “no” unless the state has clearly said “yes.”
Dillon wrote this into law during an era when city governments were, frankly, a mess. Political bosses ran patronage machines. Corruption was common. Dillon believed cities were “tenants at will” of the state — meaning they existed at the state’s pleasure and could only exercise powers the state specifically handed them. If a city wanted to raise a new tax, restructure its own government, or try something innovative to solve a local problem, it needed the state legislature’s direct approval first. That could take years, and often the answer never came at all.
Not everyone agreed. A judge named Thomas Cooley argued the opposite: cities should have the freedom to govern themselves, especially on matters that only affected their own residents. This became known as the Cooley Doctrine, and it planted the seed for what we now call home rule. As cities grew and their problems grew more complex, more states started listening to Cooley’s argument instead of Dillon’s.
That’s where charters come in. A city charter works like a local constitution — it spells out how the city government operates, what powers it holds, and how decisions get made. States began allowing cities (often above a certain population threshold) to write their own charters, giving them real control over budgets, elections, ordinances, and services. Adopt a charter, and a city moves from asking permission to acting on its own authority, as long as it doesn’t conflict with state law.
This shift didn’t eliminate Dillon’s Rule — it just changed who it applies to. Charter cities operate with home rule authority and a lot more independence. Cities without a charter, known as statutory communities, still operate under strict Dillon’s Rule limits: they can only do what state statute expressly permits.
Here’s why this isn’t just history trivia for Miami County residents. Piqua, Tipp City, Huber Heights, and West Milton all operate as charter communities. That means their councils have meaningfully more latitude to structure their own government, manage their own finances, and respond to local problems without waiting on Columbus.
Covington and Troy, by contrast, are statutory communities. Every action their councils take has to trace back to something state law explicitly authorizes. That’s not a knock on either community — plenty of well-run cities operate this way — but it does mean their elected officials have less room to maneuver than their charter counterparts down the road.
This matters for how you evaluate your local government. If you live in a statutory community and wonder why your council seems slow to act on something, part of the answer might not be a lack of will — it might be Dillon’s Rule quietly closing a door before the conversation even starts. If you live in a charter community, your council has more tools available, which also means more responsibility to use them well.
Understanding which kind of government you live under is the first step to holding it accountable. It’s also the first step toward asking a harder question: should more Miami County communities pursue charter status, and what would that conversation even look like?
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