Writing about a recent incident of police violence in a Pittsburgh suburb, one writer looking at all of the small police forces in suburbia asks:
It’s not often clear what the rationale is for these small municipalities to have their own city administrations and law enforcement agencies.
And he later says:
If having multiple police departments makes for inefficient and unprofessional work across St. Louis County, imagine what it means for Allegheny County, which has almost twice as many police departments. Micro-department intrusions add up to macro-resentment of police in general.
The argument for efficiency in consolidating local government and police forces may make sense in this particular context. Perhaps a larger-scale police force could better avoid such incidents through training and more familiarity with a broader area.
But, there are two related and powerful reasons that the American urban landscape is broken into so many local governments: Americans like the idea of local control and they like the idea of living in a small town. In a smaller community and with their own officials, Americans think they can exert more influence on local processes and the size of each local agency does not become too large. It is theoretically much easier to meet an official or register a complaint or run for local office if there is a major precipitating issue. This can especially be the case with wealthier suburbs that want to maintain their exclusivity by remaining small.
The only factor that may push suburbs and smaller communities to give up this dream of local control and small town life is difficult financial positions or seeking certain efficiencies. See an example of Maine communities that have dissolved due to a lack of local revenue. Illinois has tried banning the formation of new local taxing bodies while DuPage County has moved to reduce the number of local governments. But, if the resources are there, Americans might prefer these small units of government. (Another argument that could be leveled at all these small governments is that they may be corrupt or inept. Small suburbs can become little fiefdoms with weird rules, as illustrated by Ferguson and other communities in St. Louis County. But, even in those cases it is less clear that the residents of these small suburbs do not like their local governments where it may seem obvious to outsiders that there are problems.)
Also, it is important to note for this story that Pennsylvania is a leader among states regarding the number of local governments. Not every state does it the same way. Similarly, many metropolitan regions in the South and West are much larger in terms of square miles compared to Rust Belt cities that had difficulties annexing any suburbs into city limits after 1900.