How to Write the Common App Activities List

The Common App Activities section gives you ten slots, and each one is a small structured form rather than a paragraph. Common App's own guide to the section states the limits directly: 50 characters for the position or leadership description, 100 characters for the organization name, and 150 characters for "activity details, honors won, and accomplishments." Alongside those you pick an activity type from a dropdown and report hours per week and weeks per year. Ten is a ceiling, not a target — Common App says you "can add up to ten activities to your application, but that doesn't mean that you need to enter ten."

The single most useful thing to understand before you write anything: the 150-character field is not where you say how much time you spent, because the hours and weeks are reported in their own fields right next to it. Common App makes this point with a worked example, cutting a 256-character draft down to 141 characters, and its explanation of what it deleted is the whole method: "The time spent on the activity has been taken out, because that information is reported elsewhere in the section." Everything that another field already captures is wasted space in the description.

What does the Common App actually ask for in each activity?

More than most students expect, and knowing the full field list changes what you put in the 150 characters. Common App's printable copy of the first-year application — the 2025–26 edition, posted by Harvard College; confirm the current wording in your own account — shows each entry carrying:

You also select an activity type first. Common App notes that if your activity type is not listed you can choose "other club/activity" from the dropdown, and give the real detail in the position and description fields instead.

So a reader already knows, before reading a single word you wrote, that you did this thing for four years, ten hours a week, thirty weeks a year, during the school year, and that you intend to keep doing it. Repeating any of that in the description is the most common way students waste their 150 characters.

Two adjacent fields are worth knowing about because they absorb material that does not fit here. Common App's first-year toolkit checklist says you can list up to five academic honors, each with its title, when you received it, and the level of recognition — so a national award does not need to be squeezed into an activity description. And on that same printable form, Common App places a Responsibilities and circumstances question inside the Activities section, which asks students to "select which responsibilities you spend 4 or more hours per week doing" from a checklist that includes interpreting or translating for family members, caring for younger or sick relatives, managing household finances, and working a paid job to contribute to household income.

Do you have to fill all ten slots?

No, and two colleges say so in their own words on their own admissions pages.

Georgia Tech, which reads applications through the Common App, tells applicants plainly: "Typically, students are involved in 3-5 activities in a meaningful way, so don't feel pressure to fill in all the blanks." Its contribution to community page frames the whole section as what you contributed to your school, community, work, or family, and says there is "no correct formula."

MIT goes further, though it is worth noting MIT does not use the Common App and runs its own application. Its extracurricular activities page says: "On our application, we ask for up to four activities that are the most important to you." Four slots, by design, at one of the most selective universities in the country. That is a useful corrective to the assumption that ten filled rows is the standard being applied to you.

The ten slots are Common App's accommodation of the student who genuinely has ten things, not a scorecard. Padding the list has a real cost, too: an eighth entry that says you attended two meetings dilutes the first three, because the reader is forming an impression of how you spend your time and you have just told them some of it is spent on nothing much.

The opposite failure is worse, though. Georgia Tech's page also says: "Don't leave this portion of the application blank." And critically for anyone planning to attach a CV: "You will need to use the activities section of the application to provide us with information about the contributions you have made throughout high school, as we do not accept separate resumes." A resume you cannot submit is not a backup for a section you left thin.

How do you actually write a 150-character description?

Use Common App's own example, because it is the clearest demonstration available and you can verify the character counts yourself.

The original draft, 256 characters:

For two years I volunteered at my local animal shelter. I helped out where needed, but mainly walked dogs and monitored the front desk. Last year I was asked to take on more responsibility and have been volunteering as the receptionist during the weekends.

The edited version, 141 characters:

Volunteer at local animal shelter walking dogs and running front desk. Given more responsibility last year and now volunteer as receptionist.

Look at what actually got cut. "For two years" — the grade-level checkboxes report that. "During the weekends" — the timing and hours fields report that. Then the connective tissue of ordinary sentences goes: "I helped out where needed, but mainly," "I was asked to take on," "have been volunteering as." Common App's instruction for the section is that "you have limited space in these fields, so you may need to abbreviate words and simplify your grammar."

That yields a method you can apply to every entry:

Two things students commonly get wrong at this size. Abbreviations are acceptable here in a way they would not be in an essay, but an abbreviation only a member of your club would recognize is not — the reader has no way to decode it. And the position field is a separate 50 characters, so putting your title in the description as well spends the same information twice.

What order should the activities go in?

In the order that matters to you, and Common App is explicit about it. The instruction at the top of the section reads: "List your activities in the order of their importance to you."

That is a lower-drama answer than most advice on the subject, and it is the one printed on the form. It also does not mean "in order of hours," "in order of prestige," or "in order of title." Georgia Tech's advice matches: "we recommend that you start by listing the activities you care about the most."

The practical consequence is that the first two or three rows carry most of the weight, because they are read first and they set the frame for everything below. If the thing you care most about is a job, or a family responsibility, or a project with no organization attached to it, that goes at the top — putting a more impressive-sounding club first because it sounds better is exactly the substitution the instruction is written to prevent.

Where do jobs, family responsibilities, and hobbies go?

In the list, on equal footing. This is not a loophole; it is the section's stated scope. Common App's own description of the Activities section names "clubs, extracurriculars, family responsibilities, hobbies, work, or volunteering," and its toolkit checklist repeats the point: activities "might include family responsibilities, jobs, volunteer work, clubs, sports, hobbies, and more."

The colleges say the same. Georgia Tech: "Work, family responsibilities, activities outside of high school, and other personal projects are important contributions you may have made during your high school years! Don't neglect to tell us about these!" MIT notes that some students "spend significant time on family, work, or other obligations," and that some focus on "activities that aren't formal programs or events."

Students under-report these constantly, usually because a job or caring for a sibling does not feel like an "activity" in the way a debate team does. That instinct is costing them the most distinctive rows on the form. Twenty hours a week at a supermarket through junior year is a stronger and more legible statement about how someone spends their time than a club membership, and it is precisely the kind of thing the responsibilities checklist described above exists to surface.

Does the activities list actually matter to colleges?

It varies by school, and you can look up each one's answer rather than guessing. Every college that files a Common Data Set rates its admission factors in item C7 — extracurricular activities among them — as very important, important, considered, or not considered, in the school's own words. That is the same document our guide to building a balanced college list uses for admit rates and score ranges, and it takes about a minute per school to check once you have the file open.

What the list is doing in a read is narrower than "showing you are well-rounded." Georgia Tech names the traits it looks for in this portion of the application: commitment, self-motivation, personal responsibility, compassion for others, initiative, leadership, entrepreneurism, and intellectual curiosity. Those are readable from a description of what you did and for how long. They are not readable from a count of how many rows you filled.

One thing the section is not is a substitute for the writing. If an activity needs a story to make sense, that story belongs in an essay — and several schools ask for exactly that, including one of Stanford's short questions inviting you to elaborate on an extracurricular, a job, or family responsibilities. Counting your supplemental essays before you write them is the companion task to this one, and the two share material: the activity you put in row one is usually the one an elaboration prompt is worth spending on.

What if it does not fit in 150 characters?

There is a designated overflow, and it is smaller than it used to be.

Common App points to it directly: "If you need more space to elaborate on an activity or experience, you can use the Additional Information question in the Writing section to share more details." On the printable application, that question reads "You have the option to share any additional details or qualifications not reflected in the application," with a stated maximum of 300 words.

Three hundred, not 650. Common App cut the Additional Information limit from 650 words to 300 for the 2025–26 cycle, telling counselors that across the five most recent cycles the average response had stayed below 300 words and the median below 200. A great deal of advice still circulating online quotes the old number, so a student who plans a 600-word explanation is planning around a limit that no longer exists.

It is also a genuinely different question from the separate Challenges and circumstances question, which has its own 250-word maximum and asks about things that may have affected your application — access to a quiet study space or reliable internet, family disruptions, housing instability, health, and similar. Overflow from an activity description is not that question. Use Additional Information for the activity that needs context, and keep it short; three hundred words of prose to explain a 150-character row is already a warning sign.

When should this get done?

Earlier than it usually does, because it is one of the few application tasks that is genuinely finishable in a sitting and one of the first things a college reads.

The natural slot is the same August–September window our senior year application timeline reserves for locking the school list and asking for letters. It also pairs well with the recommendation packet: the brag sheet you assemble when asking a teacher for a letter is drawn from the same raw material — what you did, when, and what came of it — so writing one makes the other faster.

There is a practical reason not to leave it for October. Unlike an essay, the activities list has a hard stopping point: ten rows, each capped, each with a countable answer. That makes it unusually resistant to the failure mode that eats the rest of the fall, where an open-ended task with no defined end competes against a phone and loses. A task with a visible finish line is one you can actually start, which is most of what separates the work that gets done from the work that does not — the same principle behind almost everything that works against an endless feed.

What to do this week

Two sittings, neither of them long.

First, write the raw list on paper with no character limits at all: everything you have done since ninth grade, including the job, the caretaking, the thing you build alone on weekends. Next to each one, put the honest hours per week and weeks per year. This is the version that has the information in it; getting it out of your head is a separate job from getting it into the form.

Then order it by what actually matters to you, take the top five or six, and cut each description to 150 characters using the deletions above. If a seventh and eighth entry earn their place, add them. If they do not, stop — three to five meaningful activities is what a large public university tells applicants it typically sees, and an unfilled row costs you nothing.