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Tumba gymnasium in Botkyrka

Upper secondary school BOTKYRKA Municipality · Botkyrka, Stockholms County

Headmaster: Alf Solander

66
top 28% Near average Compared to all upper-secondary schools nationally
Skolkoll Score 66 out of 100. The scale goes from 0 (lowest) to 100 (highest). 50 is the average. This school performs near average. Better than 72% of Sweden’s upper secondary schools

A composite of five open data sources — a starting point, not a grade.

What is the Skolkoll Score?

Tumba gymnasium is a large municipal upper secondary school with 1,390 pupils.

Tumba gymnasium is a large municipal upper secondary school with 1,390 pupils. The share of qualified teachers (93%) is above the national average of 74%.

Skip table of contents

The Data view is optimised for in-depth analysis: history, sources, methodology and export. For a summary interpretation, see Overview.

Key figures over time

Summary of the central metrics for the most recent 5 academic years. Visit each source for the full time series.

Academic year Pupils Qualified teachers Avg. grade Cost/pupil (municipality)
2425 — — 14.6 —
2324 — — 13.9 —
2223 — — 14.6 —
2122 — — 12.6 —
2021 — — 13.1 122,863 SEK

Source: Skolverket + Kolada (cost is municipal average, not school-specific).

School history

Events from Skolverket's unit register, Skolinspektionen inspections, group history, and locally-computed statistical signals are shown in one chronology. Each row states its row type, origin and data trust so authority data is not mixed up with Skolkoll's own signals.

School history

3 priority events out of 12 total: Authority record · School started; Authority record · Head changed; Authority record · Operating name changed.

Showing all 12 events. Enable JavaScript to filter the timeline.

Quick overview

Choose which layers to show in the same date-ordered timeline.

  1. Computed signal Signal Skolverket

    Higher-education eligibility changed unusually much

    Higher-education eligibility increased by 19 pp from 29% to 48% between 2024 and 2025. This is a calculated signal, not a register decision.

    medium reliability known year
    Show details Hide details
    Source
    Skolverket
    Reliability
    Medium: the information is derived from several sources and should be read as context.
    What the date means
    Only the year is known, so the event is placed at year level.

  2. Statistics vintage Statistics Skolverket

    Grade points: statistics vintage available

    Grade points is available for 2025. This is data availability, not a school event.

    high reliability known year
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    Only the year is known, so the event is placed at year level.

  3. Statistics vintage Statistics Skolverket

    Higher-education eligibility: statistics vintage available

    Higher-education eligibility is available for 2025. This is data availability, not a school event.

    high reliability known year
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    Only the year is known, so the event is placed at year level.

  4. Authority record Contact Skolverket

    Contact details changed

    From "url: http://www.tumbagymnasium.se, email: tumbagymnasium@botkyrka.se, phone: 08-53061561" to "url: http://www.tumbagymnasium.se, email: suzana.jordanovic@botkyrka.se, phone: 070-1832618".

    high reliability found in data check
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    The date shows when Skolkoll found the change in a data check. The change may have happened earlier.

  5. Computed signal Signal Skolverket

    Grade points changed unusually much

    Grade points increased by 2.0 points from 12.6 to 14.6 between 2022 and 2023. This is a calculated signal, not a register decision.

    medium reliability known year
    Show details Hide details
    Source
    Skolverket
    Reliability
    Medium: the information is derived from several sources and should be read as context.
    What the date means
    Only the year is known, so the event is placed at year level.

  6. Statistics vintage Statistics Skolverket

    Graduated within three years: statistics vintage available

    Graduated within three years is available for 2023. This is data availability, not a school event.

    high reliability known year
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    Only the year is known, so the event is placed at year level.

  7. Computed signal Signal Skolverket

    Graduated within three years changed unusually much

    Graduated within three years increased by 13 pp from 87% to 100% between 1920 and 2021. This is a calculated signal, not a register decision.

    medium reliability known year
    Show details Hide details
    Source
    Skolverket
    Reliability
    Medium: the information is derived from several sources and should be read as context.
    What the date means
    Only the year is known, so the event is placed at year level.

  8. Authority record Name Skolverket

    Operating name changed

    From "unknown" to "Tumba gymnasium".

    high reliability found in data check
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    The date shows when Skolkoll found the change in a data check. The change may have happened earlier.

  9. Authority record Contact Skolverket

    Contact details changed

    From "url: http://www.tumbagymnasium.se, email: tumbagymnasium@botkyrka.se, phone: 08-530615683" to "url: http://www.tumbagymnasium.se, email: tumbagymnasium@botkyrka.se, phone: 08-53061561".

    high reliability found in data check
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    The date shows when Skolkoll found the change in a data check. The change may have happened earlier.

  10. Authority record Headmaster Skolverket

    Head changed

    The principal changed in the register. The name is not shown in history.

    high reliability found in data check
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    The date shows when Skolkoll found the change in a data check. The change may have happened earlier.

  11. Authority record Contact Skolverket

    Contact details changed

    From "url: http://www.tumbagymnasium.se, email: tgy@edu.botkyrka.se, phone: 08-530615683" to "url: http://www.tumbagymnasium.se, email: tumbagymnasium@botkyrka.se, phone: 08-530615683".

    high reliability found in data check
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    The date shows when Skolkoll found the change in a data check. The change may have happened earlier.

  12. Authority record Lifecycle Skolverket

    School started

    Skolverket records 2013-10-01 as the school's start date.

    high reliability known date
    Show details Hide details
    Source
    Skolverket
    Reliability
    High: the information comes from an authority source or a matched authority decision.
    What the date means
    The date is a known decision, publication or register date.

Register sources: Skolverket (fetched 4 Jun 2026), the Swedish Schools Inspectorate (fetched 31 May 2026) and group lookup from Bolagsverket/Skolkoll. Computed signals are marked separately and use year-level date precision.

Does something look wrong? Report an error in the history.

Quality data (Skolverket Statistical Database)

Costs, personnel data and school survey results from Skolverket's quality system.

Costs per pupil

Total cost
393 SEK Limited history There is still too little history to interpret the trend safely. This affects Cost per student Costs are affected by accounting practices, rent levels, and service mix, and should mainly be compared across similar school types. Read more about the method →
Teaching
367,401 SEK
Facilities
132,100 SEK
Learning materials
9,800 SEK
Student health
2,580 SEK

School survey (agree, %)

Safety, upper secondary yr 2
85% Limited history There is still too little history to interpret the trend safely. This affects Safety upper sec. year 2 The school survey relies on voluntary responses and results can vary substantially between years for small samples. Read more about the method →
Study peace, upper secondary yr 2
67% Limited history There is still too little history to interpret the trend safely. This affects Study environment upper sec. year 2 The school survey relies on voluntary responses and results can vary substantially between years for small samples. Read more about the method →
Anti-bullying, upper secondary yr 2
67%
Stimulation, upper secondary yr 2
64%

Source: Skolverket Statistical Database (Statistikdatabasen). Updated annually.

Demography

Pupil forecast — Botkyrka

Number of children in the age group ages 16–18 in the municipality, according to SCB's forecast.

Forecast covers all children in this age group across the entire municipality — not just this school's catchment. Local enrolment depends on school choice and migration patterns.

ages 16–18 (2025) 3,918
ages 16–18 (2030) 3,931
ages 16–18 (2035) 3,572
Change 2025→2030 +0.3%

Source: SCB (population forecast for Botkyrka municipality, by school-form age group).

Botkyrka municipality — history (school form: upper secondary school)

Municipality-aggregated key figures from Kolada over the most recent 5 years. Shown as municipality average — not school-specific values — because Kolada reports financial and pedagogical metrics at school-form level per municipality.

Measure 20252024202320222021
Pupils 3,9533,8623,7563,7563,757
Avg. graduation grade 14.514.714.814.914.5
Examination rate (3 yr) 63.8%65.4%63.9%62.1%61.9%
Higher-ed eligibility (3 yr) 53.8%55.5%54.0%52.2%54.0%
Cost per pupil 133,452 SEK126,917 SEK125,379 SEK123,773 SEK120,551 SEK

Source: Kolada (Swedish council for municipal analyses).

Data sources

Skolkoll is built exclusively on public data sources. Each row below shows the source, fetch date, and which metrics come from it.

Methodology and definitions

Export

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Open data — all schools