pastoral care

The pastor math: Dunbar's number and church care

By Michael Tribett · April 22, 2026 · 14 min read

A congregation has 160 members and 6 elders. That is about 27 people per shepherd, more than any one person can actually know. The math is rarely written down, so the gap it describes stays invisible until someone falls through it.

Key takeaways

Dunbar's number describes a ceiling on stable human relationships, with nested circles of roughly 5, 15, 50, and 150 at decreasing depths of closeness. A pastor is not exempt from it.

A single pastor can shepherd only about 5 to 15 people at real depth. That range is an inference from how relationships are structured, not a separately measured statistic, and it tracks with long church-leadership experience.

Run the simple math (members divided by shepherds) and most churches past roughly 80 to 100 people are already over the line. This is arithmetic, not a failure of devotion.

The only durable answer is distributed care: elders, group leaders, and care partners each holding a defined share, an arrangement closer to the New Testament pattern than the solo shepherd.

Distributed care fails when no one can see it. FlockConnect spreads the noticing across a team and gives a per-person view, while a human stays in charge of every decision.

Quick answer: How many people can a pastor shepherd well?

Dunbar's number describes nested relationship circles (roughly 5, 15, 50, and 150) with decreasing depth, and pastors are not exempt. One pastor can shepherd only about 5 to 15 people at real depth, which is why care must be distributed across elders, small-group leaders, and volunteers. Ignoring that math guarantees invisible members beyond the inner circle.

The math problem most pastors never run

Most pastors carry a quiet conviction that they should know everyone in their church. It is a beautiful instinct and an impossible one, and the impossibility is not a character flaw. It is a property of how the human mind holds relationships.

Here is the arithmetic. A church of 160 members with 6 elders, counting the lead pastor as one, works out to about 27 people per shepherd. That number sounds manageable until you remember that each of those 27 people has a family, a job, friendships, and a spiritual life that moves. The real load is not 27 names. It is the context behind 27 lives, all of it changing at once. No one tracks that well by feel.

The useful question is not whether a pastor is dedicated enough. It is what the ceiling actually is, and what a church does once it has been crossed. The companion post on how to identify isolated church members before they leave looks at the people who slip through that gap. This one is about why the gap opens in the first place.

Dunbar's number and its nested circles

Robin Dunbar, an evolutionary anthropologist at Oxford, spent decades studying the link between brain size, social-group size, and the cognitive cost of keeping relationships alive. His best-known finding is that a person maintains a stable network of around 150 meaningful relationships. The figure carries his name, and it is the outer edge of a layered structure rather than a flat cap.

Inside the 150, Dunbar and his colleagues described tighter circles at fairly predictable sizes:

Roughly 5 intimate relationships: the people you would call in a crisis at two in the morning. Spouse, closest family, a best friend or two.
Roughly 15 close friends: the group you would want around you for a significant loss or celebration.
Roughly 50 good friends: people you genuinely know, whose change in mood you would notice, whose life you could speak into.
Roughly 150 meaningful contacts: the full stable network, the people you would stop and catch up with if you ran into them.

Beyond 150 the relationships thin into acquaintance. A person can hold a contact list of a thousand names and a social feed of several thousand more. What a person cannot hold is a thousand stable, two-way relationships. The mind will not carry it, however willing the heart.

Why a pastor is not the exception

This is the part that collides with the ministry ideal. If the inner circles are real, then the pastor who tries to be a close friend to four hundred people is not being faithful to a high standard. The pastor is fighting a limit that does not yield to effort. What gives way instead is usually the pastor's family, the pastor's own soul, or the members who never make noise.

What one pastor can actually hold

Lay Dunbar's inner layers next to the work of pastoral care and a sober range appears. His roughly 5 intimate and roughly 15 close-relationship circles map onto what one pastor can hold at genuine depth: about 5 to 15 people. That figure is an inference from how relationships are structured, echoed in long church-leadership experience, not a separately measured statistic. A gifted few stretch higher. Many sit lower.

That is not an indictment. A pastor caring well for a dozen people is doing real and demanding work. A pastor caring for thirty with any depth is at the edge of their emotional and cognitive capacity, and past that edge something quietly fails. The clearer signal here is relational capacity, not the size of the sanctuary or the quality of the sermon. A full room with thin care is still fragile.

Every tradition that has lasted built some answer to this, because the math of one shepherd over a whole congregation has never worked. The names differ by tradition: elders, deacons, class leaders, small-group leaders, care teams, care partners. The shape is the same. Care gets shared.

Running the math on your own church

The exercise takes five minutes and tends to reframe the whole conversation.

Count your members, or regular attenders, depending on how you define the flock. Call it M.
Count your shepherds: pastors, elders, and anyone carrying real pastoral responsibility for a named set of people. Call it S.
Divide M by S. That is the average load each shepherd carries.
Compare it to the band. Around 5 to 15 at depth. Up to perhaps 50 if you only mean knowing a person by name and basic context. Past 50, a shepherd is managing, not shepherding.

A church of 160 with 6 shepherds lands near 27 per shepherd. That is past the depth band and inside the know-by-name range. It is workable only if the church is honest that most of those relationships are acquaintance, not care.

Widen the frame and the number grows. If each shepherd holds 27 people, and each person brings a web of family and life and faith, the true count of relational threads in one shepherd's head runs to a hundred or more. That is the load no one carries by memory for long.

The plain takeaway: once a church passes roughly 80 to 100 people, the lone pastor can no longer be the whole answer. Every member added past that point is either cared for by someone other than the pastor, or not really cared for at all.

Distributed care is the only way through

The fix is not a pastor with a better memory. It is a structure that spreads real care across more shepherds. In practice it takes a few shapes, and most healthy mid-size churches run several at once.

Elder-led care

Each elder holds a defined slice of the congregation, knows those people, reaches out when something is wrong, and brings concerns up to the lead pastor. It works where elders have the time and the shepherding gift. It breaks where elders were chosen for tenure or business sense rather than for the care of souls.

Group-leader care

Each small group becomes a care unit. The leader watches for strain, walks with people through it, and escalates what is serious. This scales at almost any size when leaders are trained and trusted to actually pastor their group, not only to run a discussion.

Care-partner care

A layer of lay ministers or trained volunteers, each assigned a short list of people to check on regularly. It carries weight well in larger churches because it does not require an elder for every dozen members, and it catches people who sit outside any small group.

Most healthy churches blend these. Elders hold spiritual direction, group leaders hold the weekly relational thread, and care partners hold ongoing contact. Each layer catches what the others miss.

The theology underneath the delegation

Distributing care is not a grudging concession to human weakness. It is nearer the New Testament pattern than the solo shepherd that many churches drift into by default.

One of the oldest pictures of it is in Exodus 18, where Jethro watches Moses try to judge every dispute in Israel himself and tells him plainly that he will wear out, and the people with him. The remedy is to appoint capable leaders over thousands, hundreds, fifties, and tens, with only the hardest cases coming up to Moses. It reads like a care org chart written long before church size was anything anyone discussed.

The New Testament keeps the shape. In Ephesians, Paul describes pastors and teachers as gifts given to equip the saints for the work of ministry, not to perform all of it while the church watches. Tim Keller presses this in Center Church: the healthiest congregations are the ones where ordinary members do the ministry the pastor trained them for. The pastor's task is to form a congregation of under-shepherds, not to be the single shepherd of everyone.

Francis Chan lands in the same place from another angle. In Letters to the Church he argues that the New Testament church was a family before it was a program, and that care of one another belongs to the whole body, not to a paid professional alone. Read together, these texts treat shared care as obedience, not as a workaround.

How distributed care quietly fails

Building the structure is half the work. The other half is keeping it visible, and this is where good intentions usually break.

Care that no one assigned

The most common failure is not bad math. It is that no one ever named who cares for whom. The pastor assumes the group leaders have it. The group leaders assume the elders have it. The elders assume someone on the care team has it. Everyone assumes, no one acts, and the quiet members fall through. The fix is explicit assignment: every person in the church has at least one named human whose job is to notice when something is off. Name it, write it down, check it.

Care that happens but stays hidden

In many churches the care is real. A group leader prays with someone for months, a deacon brings meals, an elder makes the hard call. The problem is that none of it is visible to anyone else. When that group leader steps back, the thread is gone, and no one can pick it up because the context lived in one head. Care fails here not from neglect but from fragmentation.

The pastor who tries to hold it all

Plenty of pastors know the math and still try to shepherd everyone personally. It usually ends in burnout, a family under strain, or a crisis that forces a reorganization no one planned. The healthier move is to delegate earlier, before the crisis, and to train the layers underneath while there is still room to do it well.

How FlockConnect makes the noticing shared

Most of the failures above yield to clear structure. The visibility problem is the one software can genuinely help with, and it is the one FlockConnect was built around.

FlockConnect is a Church Relationship Manager, a ChRM, that works alongside the church management system a church already runs rather than replacing it. It is pastor-facing, so members have no logins. It reads the signals a church already produces into a clear per-person view: who is connected, who looks isolated, and who has slipped from the first toward the second. The deeper case for that view is in what is a church connection.

Against the pastor-math problem, its job is narrow and useful. It spreads the noticing across a team and keeps the picture in one place, so the care a group leader gave last month does not vanish when that leader steps back. Two principles govern how it does that, because the tool is meant to serve pastoral judgment, not stand in for it. It works with what a church already has, offering an official two-way Planning Center integration as its one native connection and CSV import for everyone else. And Collie, the built-in assistant, is advisory: it can surface who looks isolated and draft a note or a next step, but it does not send messages, write to records, or change anyone's care on its own. A person reviews and approves every action.

The aim is not a prettier dashboard. The aim is that at 27 members per shepherd, the person no one has reached this month becomes visible to a human who can.

About the author

Michael Tribett is the founder of FlockConnect, a Church Relationship Manager built to help pastors see who is connected and who is drifting. He holds a Master of Divinity in Christian Ministry from Southeastern Baptist Theological Seminary, where he focused on missions and discipleship, and he serves as a small group leader at his church in the Raleigh, North Carolina area. FlockConnect is an official Planning Center partner.

Frequently asked questions

How many people can a pastor shepherd well?

How do you run the pastor math on a church?

What is Dunbar's number?

Dunbar's number is the idea that a person maintains roughly 150 stable, meaningful relationships, proposed by anthropologist Robin Dunbar. Inside that 150 sit nested circles of about 5 intimate relationships, 15 close friends, and 50 good friends, at decreasing depths of closeness.

Does the capacity limit apply to small churches too?

Yes, and it hits earlier than most pastors expect. A solo pastor at an 80-member church is already over the depth band. The math problem starts around 80 to 100 members, not at several hundred.

Is delegating pastoral care biblical?

Yes. Exodus 18 records Jethro telling Moses to appoint leaders over thousands, hundreds, fifties, and tens so he will not wear out. Ephesians describes pastors as given to equip the saints for ministry, not to do all of it alone. The solo-shepherd picture is a modern default, not a biblical mandate.

What is a care-partner model?

A care-partner model assigns trained lay ministers or volunteers a short list of people to check on regularly. It spreads care beyond elders and group leaders and works well in larger churches, because it does not require an elder for every dozen members.

Why does distributed care so often break down?

Usually because no one was explicitly assigned, or because the care that happens is invisible to anyone but the person doing it. When a caregiver steps back, the context disappears with them. Clear assignment and a shared per-person record are what keep it from breaking.

How does FlockConnect help with the pastor math?

FlockConnect spreads the noticing across a team and keeps it in one per-person view, so the pastor can see who has received care and who has not. Collie can surface who looks isolated and draft a next step, but it never sends, writes, or changes care on its own. A person reviews and approves every action.