ISTJ Personality (“The Logistician”)

My observation is that whenever one person is found adequate to the discharge of a duty... it is worse executed by two persons, and scarcely done at all if three or more are employed therein.

George Washington

The ISTJ personality type is thought to be the most abundant, making up around 13% of the population. Their defining characteristics of integrity, practical logic and tireless dedication to duty make ISTJs a vital core to many families, as well as organizations that uphold traditions, rules and standards, such as law offices, regulatory bodies and military. People with the ISTJ personality type enjoy taking responsibility for their actions, and take pride in the work they do – when working towards a goal, ISTJs hold back none of their time and energy completing each relevant task with accuracy and patience.

ISTJs don't make many assumptions, preferring instead to analyze their surroundings, check their facts and arrive at practical courses of action. ISTJ personalities are no-nonsense, and when they've made a decision, they will relay the facts necessary to achieve their goal, expecting others to grasp the situation immediately and take action. ISTJs have little tolerance for indecisiveness, but lose patience even more quickly if their chosen course is challenged with impractical theories, especially if they ignore key details – if challenges becomes time-consuming debates, ISTJs can become noticeably angry as deadlines tick nearer.

Associate With Those of Good Quality if You Esteem Your Reputation...

ISTJ personalityWhen ISTJs say they are going to get something done, they do it, meeting their obligations no matter the personal cost, and they are baffled by people who don't hold their own word in the same respect. Combining laziness and dishonesty is the quickest way to get on ISTJs' bad side. Consequently, people with the ISTJ personality type often prefer to work alone, or at least have their authority clearly established by hierarchy, where they can set and achieve their goals without debate or worry over other's reliability.

ISTJs have sharp, fact-based minds, and prefer autonomy and self-sufficiency to reliance on someone or something. Dependency on others is often seen by ISTJs as a weakness, and their passion for duty, dependability and impeccable personal integrity forbid falling into such a trap.

This sense of personal integrity is core to ISTJs, and goes beyond their own minds – ISTJ personalities adhere to established rules and guidelines regardless of cost, reporting their own mistakes and telling the truth even when the consequences for doing so could be disastrous. To ISTJs, honesty is far more important than emotional considerations, and their blunt approach leaves others with the false impression that ISTJs are cold, or even robotic. People with this type may struggle to express emotion or affection outwardly, but the suggestion that they don't feel, or worse have no personality at all, is deeply hurtful.

...For It Is Better to Be Alone Than in Bad Company

ISTJs' dedication is an excellent quality, allowing them to accomplish much, but it is also a core weakness that less scrupulous individuals take advantage of. ISTJs seek stability and security, considering it their duty to maintain a smooth operation, and they may find that their coworkers and significant others shift their responsibilities onto them, knowing that they will always take up the slack. ISTJs tend to keep their opinions to themselves and let the facts do the talking, but it can be a long time before observable evidence tells the whole story.

ISTJs need to remember to take care of themselves – their stubborn dedication to stability and efficiency can compromise those goals in the long term as others lean ever-harder on them, creating an emotional strain that can go unexpressed for years, only finally coming out after it's too late to fix. If they can find coworkers and spouses who genuinely appreciate and complement their qualities, who enjoy the brightness, clarity and dependability that they offer, ISTJs will find that their stabilizing role is a tremendously satisfying one, knowing that they are part of a system that works.

Famous ISTJs

George Washington
Andrew Johnson
Benjamin Harrison
Herbert Hoover
George H.W. Bush
Angela Merkel
Natalie Portman
“Hermione Granger” from Harry Potter series
“Adrian Monk” from Monk
“Dana Scully” from X-Files


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Aug 12, 2015 12:38:11
Jul 29, 2015 17:45:21
I always thought this was a menial and boring personality type, being an INTP, practicality and personal resposibility are not my forte. My view changed when I entered band in 6th grade. My band director is an ISTJ (I think), he believes heavily in personal responsibility and always makes sure we practice, and it pays off, too, we've scored the highest out of all the bands every year. I've learned that hard work and dedication can pay off harder than thinking and smarts. I have high respect now for people who work hard and are extremely dedicated.
Jul 26, 2015 20:53:36
ISTJ! I always hate how I'm described as Dwight Schrute! Haha!
Jul 18, 2015 23:41:25
This is soo creepy
I never thought that I cloud be difined but I can,in fact, in 8 pages!!
thank You I am now unterstood.
Jul 06, 2015 02:50:13
This is supposed to be the most abundant personality type? That's weird because I've never really noticed many people who are like least not in high school. In the workplace I guess there are some more "robotic" people like myself, but that may just be an at-work thing...I have no idea how they act at home. Honestly, I really doubt this is the most abundant personality type.

Also, it fails to mention our humor! I feel like I have a great sense of humor, and it's probably because of my personality. If people don't share my style of humor I instantly feel disconnected from them, because I feel like either they are either too dumb to pick up on my signal, or too dull or serious to participate.

For instance, just yesterday I was in a park and a kid and I were talking about a fire that had been set in one of the trash cans. I then told him about a kid who set a fire in the park bathroom and he told me we have 2 cameras in the park (which I had honestly never noticed), so I said "whelp, I guess we got that kid on tape now, he's going away for life"...and the kid said "really? He's going to jail FOR LIFE!?" and I said "no, that was a joke" and he was like "oh" and seemed to become immediately if I had lied to him or something. And this kid had to be like 12 or I feel like he could have gotten the joke if he had the right sense of humor, but some people seem to only enjoy factual conversation, and anything fanciful seems to make them immediately disengage.

I feel like like if I had given him some factual tidbit about the pyro kid's fate he would have been all ears. It's weird cause I'm the opposite...I'm not terribly interested in typical conversation about how Billy Bob knocked up Tammy Jean and now there's gunna be a shotgun weddin'. I am deeply bored by those conversations about people...I don't give shits about other people's lives. I want to talk about either something funny or current events or something deep...those are the conversations I enjoy.
Jul 15, 2015 18:24:02
It's only the most abundant by 3%, second most abundant is 10% of the population. 13% still isn't that much, and this is all probably estimation.
Aug 17, 2015 11:20:06
Humor part definitely. And I also don't see how it's the most abundant either.
Aug 28, 2015 11:38:44
I know an ISTJ who is very funny..... when he comes out of his shell! He also has very fixed 'likes' and 'dislikes' which he has never changed, in fact he seems to be very reluctant to change. He loves funny stories (At the expense of other people) , yes or current events.
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