Teacher Retention Rate: Are Teachers Staying in Your School District?

A teacher-retention rate looks simple:

What share of teachers stayed?

The useful answer is more complicated.

A teacher can leave a school but remain in the district.

A teacher can leave the district but keep teaching nearby.

Another can retire.

Another can move into administration.

Another can leave teaching completely.

Those are all different kinds of movement.

For a family researching a school district, the most important question is not whether every teacher stays forever.

That would be unrealistic.

It is:

Does the district keep enough experienced teachers to run stable schools—and can it replace the people who leave?

That makes it a useful article target and a natural companion to the existing SchoolReality guide on teacher turnover.

What is teacher retention rate?

A basic retention rate asks what percentage of teachers remain in the same school, district or profession from one year to the next.

The definition matters.

Possible versions:

School retention

Stayed at the same school.

District retention

Stayed somewhere in the same district.

Profession retention

Still working as a teacher.

These numbers can differ a lot.

Suppose 100 teachers work in a district.

Next year:

• 82 remain in the same school;
• 7 move to another school in the district;
• 5 leave for another district;
• 6 leave teaching.

School-level retention = 82%.

District-level retention = 89%.

Profession retention = 94%.

All three are true.

Always ask which one you are looking at.

What do national data show?

NCES tracks teacher movement through the National Teacher and Principal Survey and its Teacher Follow-up Survey.

For public school teachers working in 2020–21, NCES reported that in 2021–22:

• 84% stayed in the same school;
• 8% moved to another school;
• 8% left teaching.

NCES calls these groups:

• stayers;
• movers;
• leavers.

See the NCES Teacher Turnover indicator.

The next follow-up cycle is based on teachers in the 2023–24 NTPS and is designed to measure who stayed, moved or left in 2024–25.

National figures are context.

Your district may be very different.

Retention and turnover are mirror images—but not always

If a district defines turnover as everyone who leaves, a 90% retention rate suggests 10% turnover.

But districts can define turnover differently.

Some exclude:

• retirement;
• leave;
• internal transfers;
• temporary teachers.

Others count them.

That is why you should not assume:

100 – retention = turnover

unless the definitions match.

Read Teacher Turnover Rate: What It Can Tell You About a School District for the other side of the measure.

Why teacher retention matters

A stable staff can make school operations easier.

Teachers who stay know:

• curriculum;
• school routines;
• students;
• families;
• special education systems;
• colleagues;
• building culture.

Retention also affects mentoring.

A school with many first-year teachers needs experienced people to help them.

If experienced teachers keep leaving, the district may constantly rebuild that support.

High retention is not automatically good

A district can have high retention and still have problems.

Perhaps:

• vacancies were never filled;
• staff are stable but unhappy;
• weak teachers stay;
• schools lack new ideas;
• retention is high only in some neighborhoods.

Retention is not a teacher-quality rating.

Use it as a workforce stability measure.

Then ask what that stability produces.

Low retention is not automatically bad

Some turnover is normal.

A district may see more movement because:

• many teachers retire;
• a new school opens;
• teachers get promoted;
• staff transfer to better-fit schools;
• the district restructures.

One year can be unusual.

Three-to-five-year patterns are more useful.

The most useful question: where is retention low?

A district average can hide enormous school differences.

District-wide retention: 88%.

School A: 96%.

School B: 71%.

If your child would attend School B, the district average is not enough.

Ask the district for:

• retention by school;
• retention by subject;
• retention by experience level;
• retention for special education.

Then look for concentration.

The pattern often tells you more than the average.

New-teacher retention

This is one of the best staffing questions.

Ask:

“What percentage of teachers hired three years ago are still in the district?”

Why?

Because a district can hire hundreds of people and still have a staffing problem if many leave quickly.

Track cohorts:

• hired 2022;
• still employed 2023;
• still employed 2024;
• still employed 2025.

That turns annual movement into a clearer retention story.

Special education retention

This deserves its own view.

Special education teachers can face:

• high caseloads;
• paperwork;
• staffing shortages;
• difficult-to-fill support roles.

A district may have acceptable overall teacher retention and serious special education instability.

Read Special Education Staffing Shortages.

Ask for:

• special education teacher turnover;
• related-service vacancies;
• paraprofessional retention.

Retention and teacher experience

If experienced teachers leave faster than newer teachers, a district can lose institutional knowledge even if total retention looks acceptable.

Track:

• 0–3 years;
• 4–10 years;
• 10+ years.

The NCES Teacher Follow-up Survey reports teacher movement by characteristics including experience.

For a local district, state workforce dashboards may go deeper.

Retention and salary

Pay matters.

Compare salaries with nearby districts.

Do not stop at starting salary.

Look at:

• year 1;
• year 5;
• year 10;
• advanced degree;
• benefits;
• retirement;
• housing costs.

A district can advertise a strong starting salary but lose experienced teachers because the mid-career schedule falls behind.

Retention and working conditions

Teachers can leave for reasons that are difficult to see in salary tables.

NCES has found movers cite a mix of school factors, personal reasons and job benefits.

Local factors can include:

• leadership;
• student behavior;
• workload;
• planning time;
• class size;
• commute;
• professional growth.

A parent cannot fully audit teacher working conditions.

But repeated staff turnover plus repeated complaints about the same issue deserves attention.

Retention and principal stability

Teacher retention can move with school leadership.

If one school has:

• three principals in five years;
• high teacher turnover;
• many vacancies,

ask what is happening.

A stable principal does not guarantee stable teachers.

But leadership churn can make staff stability harder.

Retention and enrollment

A shrinking district can have low “retention” because positions disappear.

A fast-growing district can have lots of new hires, making the workforce look less experienced.

Context matters.

Read Student Demographics Are Changing and check enrollment.

If staff count falls because enrollment falls, that is different from teachers leaving funded positions unfilled.

Retention and class size

If teachers leave and replacements are hard to find, class sizes can rise.

Ask:

• Are sections being combined?
• Are teachers taking overloads?
• Are long-term substitutes covering classes?

Read Student-Teacher Ratio vs. Class Size.

The staffing story becomes much clearer when retention and class size move together.

Where to find local teacher-retention data

State education agency

Search:

[state] teacher retention dashboard

[state] educator workforce

[state] teacher turnover

District HR

Search:

[district] teacher retention

[district] staffing report

School board

Look for:

• HR updates;
• vacancy reports;
• recruitment plans;
• retention bonuses.

Budget

Search:

• vacancy;
• turnover;
• retention;
• salary;
• substitute.

A useful teacher-retention scorecard

Do not sum these into a number.

Use them to see whether the district can keep classrooms staffed.

What is a good teacher retention rate?

There is no universal cutoff.

Use:

• state benchmark;
• similar districts;
• school-level range;
• multi-year trend.

A district at 86% that improved from 78% may be doing something meaningful.

A district at 90% that fell from 96% deserves a question.

Direction matters.

Eight questions for a district

1. How do you define teacher retention?
2. What was district retention for the last three years?
3. How much movement is between schools inside the district?
4. Which schools have the lowest retention?
5. What is three-year retention for new teachers?
6. Which subject areas have the highest turnover?
7. How many teaching positions are vacant now?
8. What retention strategy has produced the clearest measurable improvement?

That last question forces the district to connect strategy with results.

Retention by school can reveal an internal district problem

If teachers leave one school but stay in another inside the same district, salary is probably not the entire explanation.

The teachers are on the same district pay scale.

Look at differences in:

• principal leadership;
• student behavior support;
• planning time;
• workload;
• building culture;
• commute;
• school-level vacancies.

Internal movement can be especially revealing.

Ask:

How many teacher movers stayed in the district but changed schools?

If one school repeatedly loses teachers to other district schools, investigate that building.

Retention bonuses: check whether they worked

Districts sometimes offer:

• signing bonuses;
• retention bonuses;
• hard-to-staff stipends;
• housing assistance;
• tuition support.

Do not assume the program worked because it was announced.

Ask for the before/after data.

Example:

Special education retention:

• before stipend: 72%;
• after stipend: 81%.

That is useful.

A press release saying “we invested $2 million in teacher retention” is not the same as a result.

The three-year cohort is better than one annual rate

If possible, build a cohort view.

Take teachers hired in 2023.

Then ask:

• still here after one year?
• after two?
• after three?

Do the same for 2024 hires.

This shows whether the district is getting better at keeping new staff.

It also makes district strategies easier to judge.

Teacher retention can differ by subject

Math, science, special education and bilingual education may be harder to staff.

A district-wide 91% retention rate can coexist with:

• 75% special education retention;
• 80% high school math retention.

If your child needs one of those areas, the subject-level rate matters more.

What a strong retention trend looks like

A healthy pattern might include:

• retention rising for three years;
• vacancies falling;
• fewer long-term substitutes;
• stable or improving class sizes;
• new-teacher retention improving.

No one measure proves success.

Together, the signals are much more convincing.

What a weak pattern looks like

Watch for:

• retention flat or falling;
• vacancies rising;
• repeated emergency incentives;
• high principal turnover;
• growing class sizes;
• special education positions remaining open.

Again, this does not automatically mean “bad district.”

It tells you staffing stability should move higher on your question list.

What to ask about staffing

Teacher retention tells you whether a school system can keep its workforce.

Use it with:

vacancies, experience, class size and school-level variation.

A high retention rate does not prove a district is excellent.

A low rate does not prove it is failing.

The useful question is whether the district has enough stable, experienced staff to keep its schools running well—and whether the trend is improving.

Sources and further reading

• NCES: Teacher Turnover: Stayers, Movers, and Leavers
• NCES: National Teacher and Principal Survey
• NCES: Teacher Attrition and Mobility Report
• SchoolReality: Student Support
• SchoolReality: Spending