A church in a community of 10,000 cannot produce the same raw attendance as a church in a city of 200,000 — even if the smaller church is doing everything right. Population size sets a hard arithmetic ceiling. The right metric is not attendance; it is percentage of addressable population being reached.
Warren makes this point to combat a specific kind of discouragement: pastoral comparison. A pastor compares his 200-person church to a 2,000-person megachurch across the state and concludes he has failed. But if his community has 8,000 residents and the megachurch draws from a metro of 800,000, the smaller pastor may actually be reaching a higher percentage of his available population.
Faithfulness has to be measured against context, not against absolute numbers.
This also sets realistic growth expectations. Before setting any attendance goal, MNFC needs to know: what is our actual geographic target area? How many people live there? What percentage are currently churched vs. unchurched? What percentage of that unchurched population could we realistically serve given our cultural and demographic profile? Only after those questions can growth numbers become meaningful rather than either aspirational or discouraging.
The discipline of defining your addressable population also forces a geographic specificity that is itself a form of missional maturity: you cannot say you are reaching “Minnesota” if you have no plan for how to reach the people on the streets around your building.