How many followers does Senator Mark Kelly have on X?

Senator Mark Kelly (@SenMarkKelly) has 288,107 followers on X (Twitter). The count is refreshed continuously from public data.

When did Senator Mark Kelly join X, and how old is the account?

Senator Mark Kelly joined X in November 2020. The @SenMarkKelly account is 5 years old. Searches for Senator Mark Kelly age often mean a personal age, which we do not publish. The figure here is the account age only.

How many posts has Senator Mark Kelly published?

Senator Mark Kelly has published 4,078 posts on X. That is about 1.9 posts per day over the life of the account.

Is Senator Mark Kelly verified on X?

Yes. Senator Mark Kelly carries a Government verification on X.

What does Senator Mark Kelly post about?

Senator Mark Kelly is classified under Science in our directory. Bio: "United States Senator for Arizona. Father, husband, Navy combat veteran, and retired NASA astronaut.".

Senator Mark Kelly Twitter (X) Account Stats

@SenMarkKelly

English ScienceGovernmentTier A

View on X

#256 in Science

Arizona, USAAccount age: 5 years (joined November 2020)x.com

Senator Mark Kelly Twitter (X) stats, updated continuously. @SenMarkKelly has 288,107 followers and 4,078 posts on X. Account age: 5 years (joined November 2020).

Followers

288K

Growth (7d)

Following

Influence

1.3K

Posts

4.1K~1.9/day

Likes given

134

Media posts

1.3K

Follower ratio

288K:1

Engagement

Top quarter for its size

Per follower

0.525%

of 288K followers

Per impression

9.90%

15K views on a typical post

Reach

5.31%

of its followers see a post

Typical post

1.5K

interactions (median)

Saved

0.105%

16 bookmarks on a typical post

Posting rate

1.97/day

active 63% of days

Peak time

16:00 UTC

Thursday

A typical post picks up 1.5K interactions against 288K followers, an engagement rate of 0.525%. Measured over 37 original posts, its engagement rate beats 88% of 6,874 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 15K times each, and 9.90% of those impressions turn into an interaction. That is about 5.29% of the follower count, which is the gap between an audience on paper and an audience in a timeline.

Measured over 37 original posts from a 30-day window, last computed on September 6, 2026. Recurring tag: #mccainmemories.

Full engagement report

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Follower growth

Not enough history yet - growth is tracked from first discovery.

Bio

United States Senator for Arizona. Father, husband, Navy combat veteran, and retired NASA astronaut.

Notable followers

The biggest accounts in our directory following @SenMarkKelly.

Elizabeth Warren6.8M Felipe Calderón 🇲🇽🇺🇦5.4M Paul Graham5.2M Marco Rubio5.1M Cory Booker4.4M

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Senator Mark Kelly on Twitter (X) - frequently asked questions

How many followers does Senator Mark Kelly have on X?: Senator Mark Kelly (@SenMarkKelly) has 288,107 followers on X (Twitter). The count is refreshed continuously from public data.
When did Senator Mark Kelly join X, and how old is the account?: Senator Mark Kelly joined X in November 2020. The @SenMarkKelly account is 5 years old. Searches for Senator Mark Kelly age often mean a personal age, which we do not publish. The figure here is the account age only.
How many posts has Senator Mark Kelly published?: Senator Mark Kelly has published 4,078 posts on X. That is about 1.9 posts per day over the life of the account.
Is Senator Mark Kelly verified on X?: Yes. Senator Mark Kelly carries a Government verification on X.
What does Senator Mark Kelly post about?: Senator Mark Kelly is classified under Science in our directory. Bio: "United States Senator for Arizona. Father, husband, Navy combat veteran, and retired NASA astronaut.".