What is an enumerator? What survey field staff do, how to become one and how fieldwork is checked

An enumerator is the person who collects answers for a survey. They ask the questions in the questionnaire, record what people say and send the results back to the research team. Some enumerators work face to face, visiting households or businesses. Others work by phone. In both cases the job is to ask every question the same way, write down the answer as given and treat every respondent with respect.

The word comes from the census, where enumerators counted and listed households. Today it covers anyone who gathers data for a survey: a household survey, a market study, a health survey, a baseline for a development project. Other names for the same role are interviewer, field interviewer, data collector and field agent.

Source: PollsAfrica, 2026. Method: how we compile this.

If you are thinking of becoming an enumerator, or you are about to commission a survey and want to know what you are paying for, this guide covers what the work involves, what good fieldwork looks like and how the quality is checked.

What does an enumerator do?

An enumerator is the link between a research design written at a desk and an answer given by a real person. A typical project asks them to do the following.

They find the respondent. In a household survey, the research team gives the enumerator a sampling plan, often a list of areas, and a rule for choosing which households and which person within the household to interview. The rule matters, because if the enumerator simply knocks on the nearest door, the sample no longer represents the area. In a phone survey, the enumerator works through a list of numbers.

They introduce the survey and get consent. They say who they are, who they work for and what the survey is about. They ask whether the person is an adult and whether they agree to take part. They tell the person that they can skip any question or stop at any time. Our own rule for what an interviewer says is published on the contacted by us page, so a respondent can check that a visit or a call is genuine.

They ask the questions as written. This is the discipline of the job. A survey compares answers across hundreds or thousands of people, and the comparison only works if everyone was asked the same thing in the same way. The enumerator reads the question, waits for the answer, and records it without adding opinion or leading the respondent.

They record the answer accurately. Depending on the study, the enumerator uses a tablet, a phone or paper. Good recording means choosing the answer the respondent actually gave, and noting the reason when a person refuses or cannot be reached.

They keep the data safe. The answers belong to the study, and the respondent's identity is protected. An enumerator does not share what they hear, does not photograph documents without permission and hands the data over through the channel the project sets.

They report problems. A question that confuses people, an area that cannot be reached, a household that refuses: the enumerator tells their supervisor, because the research team can fix a problem only if it knows about it.

Skills an enumerator needs

The job does not need a degree in statistics. It needs a set of practical habits.

Good listening and clear speech come first. The enumerator reads questions in the language the respondent is comfortable in, which in much of Africa means moving between English and a local language. Fluency in the local language is often the deciding skill, and so is the ability to translate a question in a way that keeps the meaning.

Neutrality comes next. A respondent can tell what answer an interviewer hopes for. A good enumerator keeps their face and tone even, so the answer reflects the respondent's view and not the interviewer's.

Care with detail matters because small errors multiply. A wrong code or a skipped question can ruin an interview, and with a large sample those errors add up.

Comfort with a phone or tablet matters more each year, because most data is now collected on devices. Enumerators need to handle an app, work offline, and sync their work.

Patience and respect are needed in the field. People are busy, suspicious or tired, and a polite approach brings a better answer and protects the reputation of the study.

Honesty is the base of everything. The research team cannot see most interviews, so it relies on the enumerator to do the interview they say they did. The checks described below exist because some interviewers, in any survey anywhere, cut corners, and good teams catch it.

CAPI and CATI: how enumerators collect the data

You will meet two abbreviations in almost every job advertisement for fieldwork.

CAPI stands for computer assisted personal interviewing. The enumerator meets the respondent in person and enters the answers on a tablet or phone. The software shows the questions in order, skips those that do not apply and rejects impossible answers, such as an age of 200. Many CAPI tools also record the time spent and the location of the interview, which helps the quality checks.

CATI stands for computer assisted telephone interviewing. The enumerator phones the respondent from a call centre or from home. The software shows the questionnaire on screen and the enumerator enters the answers as the person speaks. A supervisor can listen to a sample of calls. CATI is quick and suits national samples of people with phones.

There is also CAWI, computer assisted web interviewing, where the respondent fills in the form online, so there is no enumerator at all. A study may mix modes to reach people one channel would miss.

Our own research page explains how we choose between them. Phone interviewing suits national samples and recurring waves. Face-to-face interviewing, run through field partners, suits rural populations, areas with thin phone coverage and long or sensitive interviews. It costs more and takes longer, and it needs strong supervision.

Source: PollsAfrica, 2026. Method: how we compile this.

The diagram above is the path every study follows, from the brief to the final delivery. The enumerator's work sits in the fieldwork and quality-check stages in the middle, and the earlier stages exist so that the field team has a clear instrument and a tested questionnaire.

How enumerators are trained

Good fieldwork starts before anyone knocks on a door. A training session usually covers the purpose of the study, the questionnaire question by question, how to use the device, how to select a respondent, how to handle refusals and how to behave in the community. Trainees practise on each other, then on real respondents in a short pilot, and the team uses what it learns to fix wording and routing before the main fieldwork starts.

A pilot is an inexpensive way to find problems. Questions that sounded clear in the office turn out to confuse people, or a skip pattern sends the interviewer to the wrong place. It is far better to find that in a pilot than after thousands of interviews.

How fieldwork is supervised and checked

Trust but verify is the rule. Because the research team cannot sit in every interview, the quality system is built to catch errors and shortcuts after the fact. These are the checks we run on our studies.

Live checks run on every wave of a study: speeding, straightlining, duplicate devices and a mismatch between where an interview was recorded and where it should have been. A "speeder" is an interview completed too fast to be real, and our dashboard flags interviews that run under 2 minutes for review. "Straightlining" means giving the same answer to every question in a list, which is often a sign that the respondent or the interviewer was not paying attention.

Supervisors listen to a sample of calls on phone studies, and calls are made inside set hours: 8am to 8pm.

Back checks re-contact a random sample of completed interviews. About 10 percent of completes are re-checked, and the person who answers is asked a few questions to confirm that the interview took place and that the answers were recorded correctly. An interview that fails a back check is dropped from the data, and the failure counts against the field partner who supplied it.

Every release of a study then states the dates of fieldwork, the sample size, the mode and the exact questions asked, so a reader can see what was done. How we report the contact and outcome of every sampled case is set out on the fieldwork methods page.

Do enumerators get paid, and how much?

Yes, enumerators are paid. How much depends on the country, the mode, the length of the questionnaire, the difficulty of the area and the firm that hires them. Some projects pay a daily rate and others pay per completed interview.

We do not publish an enumerator pay range on this page. We have no public, dated source for such a range that we are willing to stand behind, and a number copied from a job advertisement or a forum would be a guess. If you are offered a job, ask for the rate in writing before you start. Ask whether it is paid per day or per interview, whether transport and airtime are covered, when payment is made, and what happens to pay if an interview is rejected by a back check.

How to become an enumerator

Most enumerators are recruited by survey firms, research agencies and field partners for each project. The steps are simple.

1. Build the basics: a good command of the language or languages in your area, a level of education the study requires, and comfort with a smartphone.
2. Look for work with survey and research firms in your country, universities with research units and the field partners that carry out fieldwork for international studies. Work is usually advertised when a project is about to start.
3. Present yourself clearly. A short CV that lists your languages, your education, your phone or tablet skills and any earlier fieldwork or customer-facing experience is enough.
4. Attend the training and take it seriously. Selection for the final team often depends on how well you do in training and in the pilot.
5. Do the work honestly. Firms re-use the enumerators who produce clean data, and they remove those who do not.

Be careful about scams. A genuine research firm pays you for your work, and it does not ask you to pay for a job, a uniform, a badge or a training place. The same rule applies to survey respondents, and our guide to paid surveys in Nigeria explains the warning signs.

How PollsAfrica works with field partners

We run phone fieldwork ourselves in Nigeria, our home market. For face-to-face fieldwork, and for countries outside Nigeria, we work through vetted local field partners, which are survey firms and fieldwork teams that already know the area and the languages. We take on each new country case by case.

Every field partner signs our data protection and anti-fraud annex before an award. That annex sets out how respondent data is handled and what happens to anyone who falsifies interviews. The partner supplies and manages the enumerators, and we apply the checks above to the work they deliver. A failed back check counts against the partner, which gives them a direct interest in honest fieldwork.

If you run a field team, a survey firm or a data collection business and you would like to work with us, write to the partner address on our contact page. Tell us the countries you cover, the languages your teams speak and your recent survey work. We read every message.

If you want to commission a survey

If you need a household survey, a baseline, a monitoring round or a customer study, the enumerators are only one part of the cost and the quality. Ask any firm you consider how it selects respondents, how it trains and checks its field team, how it reports response rates and what its back check rate is. Then compare the answers.

Our development partners page describes the studies we run for agencies and donors, our business research page covers market and customer work, and our capability statement sets out the method in one document. To brief us, use the contact page, and we will reply with questions before we send a proposal.

Frequently asked questions

What is an enumerator?

An enumerator is the person who collects survey answers. They ask the questions in a questionnaire, in person or by phone, and record the answers. The same role is also called an interviewer, field interviewer, data collector or field agent.

What is the difference between an enumerator and a supervisor?

The enumerator interviews the respondents. The supervisor manages a team of enumerators, checks their work, solves problems in the field and reports to the research team.

What does CAPI mean?

CAPI is computer assisted personal interviewing. The enumerator meets the respondent in person and records the answers on a tablet or phone with a form that guides the interview.

What does CATI mean?

CATI is computer assisted telephone interviewing. The enumerator phones the respondent and enters the answers on screen while talking.

Do I need a degree to be an enumerator?

The level of education depends on the study. What nearly every project needs is clear speech, good command of the local language, care with detail and comfort with a phone or tablet.

How much do enumerators earn?

Pay differs by country, mode and firm, and we do not publish a range we cannot source. Ask for the rate in writing before you start, and confirm how transport and airtime are handled.

How can I tell a real enumerator from a scam?

A real enumerator says who they are and who they work for, asks whether you are an adult and whether you agree, and never asks for money, bank details, PINs or passwords. Our contacted by us page lists what a real PollsAfrica contact looks like.

How does PollsAfrica work with field partners?

We contract through vetted local field partners for face-to-face work and for countries outside Nigeria. Each partner signs our data protection and anti-fraud annex, and we apply back checks and live quality checks to their work.