Age Questions for Surveys (With Age Ranges)

Asking age directly

There are only four ways to ask this and they are not interchangeable. Ranges are the default. Year of birth is better if you re-survey the same people over time, because it does not go stale between waves. A full date of birth is a meaningful escalation in what you are asking someone to hand over, and it should appear only when you have a concrete reason.

• What is your age?

  Single choice
  Under 1818-2425-3435-4445-5455-6465 or olderPrefer not to say

  The default. Ten-year bands are coarse enough that people answer without hesitating and fine enough for almost any cut you will make later.

• What year were you born?

  Short text

  Better than an age band for any survey you will run again with the same people — an age answer is wrong a year later, a birth year never is.

• How old were you on your last birthday?

  Short text

  The phrasing official statistics use. It removes the ambiguity of people rounding up to their next birthday, which is a real and measurable error in open age fields.

• What is your date of birth?

  Short text

  Only when exact age genuinely matters — age-restricted eligibility, or matching to another record. For everything else this asks for far more than you need.

Choosing your age bands

The bands are the decision, not the wording. Pick them to match whatever you will compare against — public statistics, your analytics tool, last year's wave — because bands that do not line up cannot be reconciled afterward without going back to raw data you may not have kept. Never overlap them, and never leave a gap.

• What is your age? (five-year bands)

  Single choice
  18-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465 or olderPrefer not to say

  Use when you need to line up with published population statistics, which are usually reported in five-year bands. Too granular for most commercial research.

• What is your age? (broad bands)

  Single choice
  Under 2525-4445-6465 or olderPrefer not to say

  Four options, minimal friction. Good for a short feedback form where age is context rather than a segment you will actually split on.

• Which generation do you consider yourself part of?

  Single choice
  Gen ZMillennialGen XBaby BoomerSilent GenerationNot sure

  Asks for self-identification, not a birth-year lookup — which is the point, since generational labels are marketing categories with no fixed boundaries. Do not treat this as a substitute for actual age data.

• What is your age in years?

  Short text

  Open numeric entry. Defensible only when you need exact ages for a calculation such as a mean; expect to clean typos, joke answers, and blanks.

• Which age group best describes the people you are answering for?

  Single choice
  Under 1818-2425-3435-5455 or olderMixed agesNot applicable

  For proxy respondents — a parent answering about children, a manager about a team. Keep it clearly separate from the respondent's own age.

Age and life stage

Age often stands in for something you could ask about directly, and the direct question is usually the better predictor. If what you actually want to know is whether someone is early in their career or has young children at home, ask that — a 40-year-old first-time founder and a 40-year-old with twenty years in the field are not one segment.

• What best describes your current life stage?

  Single choice
  StudentEarly careerMid careerLate careerRetiredNot currently workingPrefer not to say

• Are you currently studying?

  Single choice
  Yes, full-timeYes, part-timeNoPrefer not to say

• Are there children under 18 in your household?

  Single choice
  YesNoPrefer not to say

• How long have you worked in your current field?

  Single choice
  Less than a year1-3 years4-7 years8-15 yearsMore than 15 years

  Usually a stronger predictor of professional behavior than age is, and people answer it far more readily.

• What best describes your household right now?

  Single choice
  Living with parents or familyLiving aloneLiving with a partner, no childrenLiving with a partner and childrenChildren have moved outPrefer not to say

• How long have you been a customer?

  Single choice
  Less than 6 months6-12 months1-3 yearsMore than 3 yearsNot a customer

  Tenure explains more about satisfaction scores than age does in nearly every customer survey. Ask it before you reach for a demographic split.

Screening, minors, and consent

This is the one case where an age question belongs at the very top: when the answer decides whether the person should be taking your survey at all. Collecting data from children carries rules that vary by country, and the safe default for a general-audience form is to screen minors out rather than collect and then discard.

• Are you 18 or older?

  Single choice
  YesNo

  The simplest screener. Ask it first, before anything else, and end the form on "No" rather than collecting answers you will have to delete.

• Which of these describes your age?

  Single choice
  Under 1313-1516-1718 or older

  Use when your audience genuinely includes minors and the bands change what happens next. Rules for collecting data from children differ by country and by age — check what applies to you before fielding a survey that can reach under-18s.

• Which country do you live in?

  Short text

  Relevant here because the age of majority and the rules around minors' data are not the same everywhere. Ask it alongside an age screener, not instead of one.

• Do you have permission from a parent or guardian to take part?

  Single choice
  YesNo

  A self-reported answer is not verifiable consent. Treat it as a courtesy check, not as the thing that makes collecting a minor's data acceptable.

• Do you agree to take part in this survey?

  Single choice
  YesNo

  Keep consent as its own question, separate from the age screener, so a respondent is agreeing to something specific rather than to a bundle.

Try it live

The same questions, asked one at a time

This is a working form built from the questions above — answer it the way a respondent would, then take it into your own account with one click.

See how conversational forms ask these one at a time →

Frequently asked questions

Should I ask for age as a range or an exact number?

Ranges, unless you have a specific reason not to. Open age fields collect typos, refusals, and rounded answers, and the extra precision is wasted because almost every analysis groups the numbers back into bands anyway. Ask for an exact age only when you need to calculate with it, or a birth year when you plan to survey the same people again later.

Where should the age question go in a survey?

Near the end, with the rest of the demographic block — unless age decides whether someone qualifies to take the survey at all, in which case it goes first as a screener. Leading a general survey with age costs you completions before you have collected anything you wanted.

What should I do about people who skip the age question?

Expect it and plan for it. Include an explicit prefer-not-to-say option so a refusal is recorded as a real answer rather than a blank you cannot interpret, and keep the question optional. Forcing an answer produces inaccurate ages from people who did not want to tell you, which is worse than a missing value.