How many doors do you have to knock to win?
Knocking randomly burns out volunteers and loses races. Here's how to back a real door target out of your win number — and the time and people it takes to hit it.
"Just knock on a lot of doors" is how campaigns waste their most precious resource: time. Door-to-door contact is still the highest-converting voter outreach in local races — but only if it's aimed. Before you walk a single block, you should know roughly how many doors stand between you and victory. The good news: that number falls right out of simple arithmetic once you have your win number and a couple of realistic rates. This guide shows you the door math, then turns it into a volunteer and calendar plan.
Key takeaways
- Start from your win number, then work backward to a door target — never knock blind.
- Two rates drive everything: your contact rate (who's actually home) and your conversion rate (who becomes a supporter).
- Plan a cushion — IDed supporters don't all turn out, so identify more than your win number.
- Door math converts directly into volunteer-hours, which tells you how many people you need and by when.
Why knock doors at all in a texting age?
Because it works. A real face-to-face conversation at the door moves voters more reliably than almost any other tactic in a low-information local race, where most voters have never heard of any candidate. Texting and mail extend your reach and are essential for getting out the vote — but the door is where you do your highest-value voter ID, finding the supporters you'll later turn out. The question isn't *whether* to knock; it's *how many* and *which* doors.
Knock the right doors, not all the doors
You don't knock every house — you knock your voter universe: the high-propensity May voters you can persuade or turn out. Build that list first; see how to build a voter universe and our block-walking guide.
What contact and conversion rates should you assume?
Two rates turn doors into votes. Use conservative planning numbers and adjust as your real data comes in:
- Contact rate — the share of doors where someone actually answers. Plan around 20–35% for cold weekday/weekend canvassing; it varies by neighborhood and time of day.
- Conversion / ID rate — of the people you talk to, the share who become identified supporters. This depends on your race, but a focused universe might yield a third to half as supporters.
- Turnout reliability — even confirmed supporters don't all vote, so your ID goal should sit above your win number to leave a cushion.
These are planning numbers — measure your own
Contact and conversion rates differ by city, season, and list quality. Use these to build a first plan, then replace them with your campaign's actual rates after the first weekend of knocking.
How do you back a door target out of your win number?
Walk it backward from the result you need. Suppose your win number is 2,300 votes. Here's the chain:
- 1.Set an ID goal above your win number. Because not all supporters vote, aim to identify, say, 3,000 supporters for a 2,300 win number.
- 2.Apply your conversion rate. If about a third of the people you talk to become IDed supporters, you need roughly 9,000 conversations to find 3,000 supporters.
- 3.Apply your contact rate. If you reach someone at ~25% of doors, 9,000 conversations means knocking about 36,000 doors.
- 4.Account for second attempts. Not-homes get re-knocked, so your total *attempts* are higher than unique doors — plan for re-walks.
| Step | Rate used | Running total |
|---|---|---|
| Win number | — | 2,300 votes |
| ID goal (cushion) | +~30% | ~3,000 supporters |
| Conversations needed | ~33% convert | ~9,000 talks |
| Doors to knock | ~25% contact | ~36,000 doors |
Thirty-six thousand sounds enormous until you turn it into a schedule — which is the whole point of doing the math. A single canvasser knocks roughly 15–25 doors an hour. Now the target becomes a staffing question you can actually solve.
How many volunteers and hours is that?
Convert doors into volunteer-hours and the plan writes itself. At ~20 doors per hour, 36,000 doors ≈ 1,800 volunteer-hours. Spread across a real canvassing window, that's very manageable:
- Over a 12-week field program, that's ~150 volunteer-hours a week.
- That's roughly 8–10 canvassers doing two weekend shifts plus a weeknight — a real but reachable volunteer corps.
- Front-load it. Do most knocking *before* early voting so you can spend the final stretch on your early-vote chase, not cold ID.
- Recruit early and over-recruit — see our volunteer recruitment guide.
Mandate builds the walk plan and the math.
Mandate computes your win number, sizes your door target from real contact and conversion rates, cuts turf-balanced walk lists, and runs the field app your volunteers knock with — all in one nonpartisan login, alongside texting, mail, and compliance.
The bottom line
Door knocking wins local races, but only when it's aimed. Start from your win number, pad it into an ID goal, divide by your conversion and contact rates to get a door target, then translate that into volunteer-hours and a calendar. Suddenly "go knock doors" becomes "knock ~36,000 doors over 12 weeks with 8–10 volunteers, mostly before early voting." That's a plan you can run. For the upstream math, see how many votes it takes to win; to staff it, see volunteer recruitment. Ready to run a real field program? Apply to launch with Mandate or explore the platform.
Frequently asked questions
How many doors do you have to knock to win a local election?
It depends on your win number and your contact and conversion rates, but back-of-envelope math often lands in the tens of thousands of doors. Start from the votes you need, pad it into an ID goal, then divide by your conversion and contact rates to get a concrete door target.
What is a good contact rate for canvassing?
For cold canvassing, plan around 20–35% of doors where someone actually answers, varying by neighborhood and time of day. Use a conservative number to build your plan, then replace it with your campaign's real rate after the first weekend.
Is door knocking still worth it compared to texting and mail?
Yes. A face-to-face conversation at the door is the highest-converting outreach in low-information local races and is your best tool for voter ID. Texting and mail extend reach and drive turnout, but the door is where you find your supporters.
How many volunteers do I need to hit my door target?
Convert doors into volunteer-hours (a canvasser knocks roughly 15–25 doors an hour), then spread across your field window. A target of ~36,000 doors over 12 weeks works out to roughly 8–10 active canvassers doing a couple of shifts a week.
When should most of the door knocking happen?
Front-load it before early voting so you finish voter ID early and can spend the final stretch chasing your identified supporters to the polls. Late-cycle knocking should be turnout-focused, not cold ID.
Run your whole campaign on one platform.
Mandate builds your voter universe, walk lists, GOTV, and Texas-ready compliance — start to finish, in one login. Tell us your race and we'll map it.
Keep reading
All resourcesHow Many Votes Does It Take to Win a Local Election?
Your opponent isn't the whole town — it's a few thousand May voters. Learn the win-number method that tells you exactly how many votes you need and how to build toward it.
Block Walking 101: The Canvassing Playbook
Door knocking is still the highest-converting voter contact in local races. Here's the full block-walking playbook: the rap, the walk list, logging contacts, safety, and the field app that ties it together.
How to Recruit and Keep Campaign Volunteers
Volunteers are the labor that wins low-budget local races. Here's where to find them, how to make the ask, and how to keep them showing up.
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