How many days does it take for respondents to respond to your survey?

Survey created. Check. Survey sent via email. Check. Survey posted to Facebook, X (formerly known as Twitter) and LinkedIn. Check, check and check. Log in to SurveyMonkey to see the results start coming in. Yes, we know it’s addictive!

But the question is: How long should you really wait before starting to analyse your results?

How long, on average, does it take for the majority of respondents to complete a survey? We wanted to find out so you would know how patient to be.

We selected a random sample of 500,000 individual respondents who received survey invitations (using the SurveyMonkey email collector) in 2009 and 2010. We excluded the first week of January, the last week of November and the last two weeks of December to normalise for US holidays. We limited our analysis to surveys that collected between 50 and 500 responses so that any single survey that received thousands (or millions; yes, some get millions!) of responses did not skew the results. And we only included responses to surveys created by SurveyMonkey professional accounts since free accounts can only have up to 100 responses per survey.

The majority of responses to surveys using an email collector were gathered in the first few days after email invitations were sent:

Only 11% of responses were collected during the second week of the survey period, and another 4% during the third week.

You can peek during day one, but you might want to wait until day seven to run any significant analysis. And if you’re trying to generate more responses, you might consider sending out a reminder email after a week to see if that stirs your stragglers into action.

Check out these additional posts on our blog, where we answered the following questions:

What’s been your experience with respondents and how long it takes them to respond? Please share in the comments below.