Here is a math problem most pastors have never run. Your congregation has 160 members. You have 6 elders. That's 27 people per shepherd, which is more than any one person can actually know. If no one is doing the math, no one is fixing it.
Key takeaways:
- Dunbar's number caps stable human relationships at around 150, with tighter inner circles of roughly 5, 15, and 50 at decreasing depths of closeness.
- Pastoral-care research puts the realistic number of people a single pastor can actually know and shepherd well at 5–20, not 150.
- A typical church of 160 members with 6 elders works out to 27 members per shepherd, which is above the realistic pastoral ceiling.
- Every church past about 80 members either distributes care to small group leaders and care partners, or quietly fails to care for a growing share of the congregation.
- Distributed care only works if someone can see it. Untracked, informal care at 160 members drops members without anyone noticing.
Quick answer: how many people can a pastor actually know?
Research on pastoral-care capacity consistently puts the number of people a single pastor can know and shepherd well at roughly 5–20. The upper end is unusual. The lower end is common. This is not a failure of pastoral dedication. It is a property of human cognition. Pastoral-care research converges here for the same reasons Robin Dunbar's anthropological work converges on 150 for total stable relationships and 5 for genuinely intimate ones. A pastor is still a human, and no amount of calling or devotion changes the ceiling on how many souls one human can track with depth.
If your church has more than 80–100 members and you are the only one doing pastoral care, you have already lost the ability to know your whole congregation individually. This is not pessimism. It is arithmetic. The useful question is what to do about it.
Dunbar's number and its inner circles
Robin Dunbar, an evolutionary anthropologist at Oxford, has spent decades studying the relationship between brain size, social-group size, and the cognitive load of maintaining relationships. His best-known finding is that humans maintain a stable network of roughly 150 meaningful relationships. The number is called Dunbar's number and it has been replicated across cultures, technologies, and time periods.
What gets less attention is that 150 is the outer edge of a layered structure. Inside that number, Dunbar and his colleagues have observed tighter circles at predictable sizes:
- ~5 intimate relationships — the people you can call in a crisis at 2 a.m. Spouse, best friends, closest family.
- ~15 close friends — the "sympathy group." People you'd invite to a significant life event.
- ~50 good friends — people you genuinely know, would recognize a change in their demeanor, and can speak into their life.
- ~150 meaningful contacts — the full stable network. People you'd stop to talk with if you ran into them.
Past 150, the research gets muddier, but the circles above 150 tend to represent acquaintances rather than known persons. You can have 500 LinkedIn connections, 2,000 Facebook friends, or a contact list of a thousand. What you can't have is a stable network of 500 real relationships. Your brain will not let you.
Why this matters for church ministry
A pastor is not exempt from Dunbar's number. This is the part a lot of pastors don't want to hear, because it collides with a ministry ideal that says the pastor should know everyone. In the abstract, that ideal is beautiful. In practice, it produces burnout and guilt, because the pastor cannot actually maintain 200 or 400 or 1,000 real relationships at the depth their conscience wants.
Pastoral-care capacity in the research
Studies of pastoral-care effectiveness, the Natural Church Development research by Christian Schwarz, and countless denominational reports have circled a similar number for how many people one pastor can shepherd well: around 5–20 at genuine pastoral depth. A few can do more. Most do less. The average is lower than pastors want to believe.
This is not about being a lazy or unfaithful pastor. A pastor shepherding 20 people well is doing extraordinary work. A pastor shepherding 30 people with any depth is operating at the edge of their cognitive and emotional capacity. Past that, something gives. Usually it is the pastor's family, the pastor's soul, or the members who aren't the squeaky wheel.
The historical pattern in healthy churches across traditions is delegation: elders, deacons, small-group leaders, care teams, care partners, house-church leaders, whatever the tradition calls them. Every tradition that has lasted has built some version of a distributed care structure, because the math of one shepherd per 200 people has never worked.
Running the math on your church
Here is the formula I give pastors when we talk about this. Plug in your numbers.
- Count your members (or regular attenders, depending on how you define the flock). Call it M.
- Count your shepherds — pastors, elders, and anyone with pastoral responsibility for a specific set of people. Call it S.
- Compute M / S. That's the average number of people each shepherd is responsible for.
- Compare it to the realistic pastoral ceiling. 5–20 at depth. 20–50 if you count knowing by name and basic context. Past 50, you're effectively managing, not shepherding.
A worked example
A church with 160 members and 6 elders (counting the lead pastor as one). That is 160 / 6 = 26.7 members per shepherd. That number is above the realistic depth ceiling for most people. It is inside the "know by name" range. It is below the "100% manageable with memory" threshold.
Now widen the frame. If each elder is responsible for 27 people, and each person has a family, work, friendships, and spiritual needs, the real cognitive load per elder is much bigger than 27. You are effectively tracking 27 × (family context + life context + spiritual context) = something like 100 simultaneous relational-information threads per elder. No one does that well by feel.
What the math looks like at common sizes
| Church size | Typical shepherd count | Members per shepherd | Reality check |
|---|---|---|---|
| 50 members | 1 pastor | 50 | Pastor can know by name. Depth is thinning. |
| 120 members | 1 pastor + 2 elders | 40 | Past depth ceiling. Distributed care needed. |
| 300 members | 1 pastor + 5 elders | 50 | Impossible without small group leaders doing real care. |
| 800 members | 3 pastors + 10 elders | 62 | Requires formal care structure across multiple layers. |
| 2,000 members | 5 pastors + 15 elders | 100 | Most members are not individually pastored at all. Care happens through groups or doesn't happen. |
The practical takeaway is that once a church passes about 80–100 members, the pastor cannot be the sole shepherd. Every additional member past that point is either being pastored by someone besides the pastor, or not being pastored at all.
Distributed care is the only way forward
The solution is not to find a pastor with superhuman memory. It is to build a structure that distributes real pastoral care across more people. Historically this has taken a few forms.
Elder-led care
Each elder is responsible for a defined subset of the congregation. They know those people, they call when something is wrong, they report up to the lead pastor on pastoral concerns. This works well in churches where elders have the time and the pastoral gifting to actually do it. It breaks when elders are chosen for business acumen or tenure rather than for shepherd capacity.
Small-group leader care
Each small group is a care unit. The leader watches for signs of struggle, walks alongside members, escalates serious issues. This works at almost any church size if group leaders are trained and empowered to actually pastor, not just facilitate discussion.
Care partner (or care team) care
A specific layer of volunteers or lay ministers who are assigned a short list of members to check in on regularly. This is the model that scales best at the 200–800 range, because it decouples care from small-group structure and doesn't require an elder for every 20 people.
Hybrid
Most healthy mid-size and large churches run a hybrid: elders hold theological and spiritual-direction responsibility, small-group leaders hold weekly relational responsibility, and care partners or deacons hold ongoing-care responsibility. Each layer catches what the others miss.
The theology behind delegation
This is not a concession to human limits. It is closer to the New Testament model than the solo-shepherd picture most American churches default to.
Ephesians 4:11–12
Paul describes the gifts Christ gives the church as including apostles, prophets, evangelists, pastors, and teachers — "to equip the saints for the work of ministry." The point of pastoral gifting, according to Paul, is not that the pastor does ministry while the saints watch. It is that the pastor equips the saints to do the ministry. Distributed care is this text being obeyed, not avoided.
Tim Keller, in Center Church, makes this point repeatedly. The healthiest churches are the ones where the lay members are doing the ministry the pastor was equipping them to do. The pastor's job is not to be superhuman. It is to form a congregation of under-pastors.
Exodus 18 (Jethro and Moses)
One of the earliest management stories in Scripture is Jethro watching Moses try to personally judge every dispute in Israel. Jethro tells him plainly that he will wear himself out and the people too. The answer is to appoint leaders over thousands, hundreds, fifties, tens — with the harder cases escalating to Moses. This is a pastoral-care org chart in Exodus 18, written before the math of congregational size was a category anyone discussed.
Piper on non-professional ministry
John Piper's Brothers, We Are Not Professionals is sometimes read as a call for pastors to do everything themselves. It is the opposite. Piper's argument is that pastoral ministry is a calling to care for souls, not a professional role of administering programs. Care for souls at any meaningful scale requires distributing that care. Piper's complaint is not that pastors delegate too much. It is that pastors delegate the soul work and keep the administrative work, when the right pattern is the reverse.
Chan on equipping
Francis Chan has argued repeatedly that the American church reverses the New Testament pattern. The pastor does the ministry, the congregation consumes it. Chan's call in Multiply is to train every believer to disciple someone else. That is the same pattern as distributed care. Every member a shepherd of someone. The senior pastor becomes a trainer of trainers, not a lone shepherd of 300 sheep.
Common failure modes
Unstated care responsibilities
The most common failure is not that the math is wrong. It is that no one has actually assigned who cares for whom. The pastor assumes the small-group leaders are doing it. The small-group leaders assume the elders are doing it. The elders assume someone from the care team is doing it. Everyone assumes, no one does, and members fall through.
The fix is explicit assignment. Every member in the congregation should have at least one named person whose job it is to notice when something is off. Name it, write it down, check it.
Care happens but isn't visible
In many churches, care is happening. Small-group leaders are praying with people, elders are making calls, deacons are showing up with meals. The problem is none of it is visible to anyone else. If a small-group leader walks alongside a member for six months and then stops coming to church, no one else at the church can pick up the thread. The context is gone. This is where care fails not from neglect but from fragmentation.
The pastor tries to do it all
Plenty of pastors know the math and still try to pastor everyone personally. Usually this ends in burnout, family strain, or a crisis that forces a re-org. The healthier pattern is earlier delegation, before the crisis, with explicit training of the layers beneath the pastor.
How FlockConnect makes distributed care visible
Most of the failure modes above are solvable with explicit structure. The visibility problem is the one software can actually help with. I built FlockConnect specifically to address the "care is happening but no one can see it" failure.
In FlockConnect, every care partner, small-group leader, or assigned shepherd logs interactions against specific members, with appropriate privacy controls on who can see what. Account owners and admins see the full care picture. Care partners see only the members assigned to them. Elder-sensitive notes can stay in elder scope only. The result is that the pastor can see, at a glance, who on the congregation has received pastoral contact this month, who has not, and which of the not-contacted members are also at risk on their relational connection score.
That is the actual problem at the "27 members per elder" scale. Not a missing person. A missing system for seeing the person.
FlockConnect integrates natively with Planning Center through one-click OAuth. For churches on other ChMS platforms, CSV import works from any system. Pricing starts at $10/month for solo pastors with a 14-day free trial.
Related reading:
About the author
Michael Tribett is the founder of FlockConnect, the first purpose-built Church Relationship Management (ChRM) platform. Based in Raleigh, North Carolina, he built FlockConnect because the math of modern congregational care has not added up for most of the churches he has watched up close. FlockConnect is a member of the Missional Labs Faith & AI Accelerator and an official Planning Center integration partner.
Frequently asked questions
How many people can a pastor know well?
Research on pastoral-care capacity consistently lands around 5–20 people a single pastor can shepherd at depth. A few can do more. Most do less. Past that, the pastor is either managing, not shepherding, or they are burning out.
What is Dunbar's number?
Dunbar's number is roughly 150 stable meaningful relationships, the maximum most humans can maintain. It was proposed by anthropologist Robin Dunbar and has been replicated across cultures. Inside 150 are tighter circles of about 5 intimate relationships, 15 close friends, and 50 good friends.
How do I run the pastor math on my church?
Count members (or regular attenders), count shepherds (pastors and elders with pastoral responsibility), and divide. That's the average number of people per shepherd. Compare it to the 5–20 depth ceiling. Past 20 per shepherd, you need a distributed-care model with small-group leaders or care partners.
Does this only apply to big churches?
No. The ceiling hits earlier than most pastors expect. A solo pastor at an 80-member church is already above the realistic depth ceiling. The math problem starts at about 80–100 members, not at 800.
What is a care partner model?
A care partner model assigns trained volunteers or lay ministers a small list of members to watch over and care for regularly. It distributes care responsibility beyond elders and small-group leaders. The model scales well at the 200–800-member range because it doesn't require an elder for every 20 people.
Is delegating pastoral care biblical?
Yes. Ephesians 4:11–12 describes the pastor's role as equipping the saints for the work of ministry. Exodus 18 records Jethro telling Moses to appoint leaders over thousands, hundreds, fifties, and tens so he doesn't wear himself out. The solo-shepherd picture is a modern American assumption, not a biblical mandate.
How does FlockConnect help with the pastor math?
FlockConnect makes distributed care visible. Care partners, small-group leaders, and elders log interactions against the members assigned to them, with privacy controls so sensitive notes stay in the right scope. The pastor sees, at a glance, who has received pastoral contact and who hasn't, and which of the not-contacted members are also flagged as at-risk on their relational connection score.