Tjärnö skola in Strömstad

Compulsory schoolYear 1–3Operator: Strömstad Municipality · Strömstad, Västra Götalands County

Headmaster: Eva Stigberg

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Tjärnö skola is a small municipal compulsory school with 10 pupils.

Tjärnö skola is a small municipal compulsory school with 10 pupils.

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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 4 academic years. Visit each source for the full time series.

Academic yearPupilsQualified teachersAvg. gradeCost/pupil (municipality)
2025/2610———
2023/24—34%——
2022/23—1%——
2021/22—3%——

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 15 total: Authority record · Visiting address changed; Authority record · School started; Authority record · Year levels changed.

Showing all 15 events. Enable JavaScript to filter the timeline.

Quick overview

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

  1. Statistics vintageStatisticsSkolverket

    Pupil count: statistics vintage available

    Pupil count is available for 2026. This is data availability, not a school event.

    high reliabilityknown year
    Show detailsHide 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.

  2. Computed signalSignalSkolverket

    Pupils per teacher changed unusually much

    Pupils per teacher decreased by 25% from 6.7 to 5.0 between 2023 and 2024. This is a calculated signal, not a register decision.

    medium reliabilityknown year
    Show detailsHide 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.

  3. Computed signalSignalSkolverket

    Qualified teachers changed unusually much

    Qualified teachers increased by 33 pp from 1% to 34% between 2023 and 2024. This is a calculated signal, not a register decision.

    medium reliabilityknown year
    Show detailsHide 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.

  4. Statistics vintageStatisticsSkolverket

    Pupils per teacher: statistics vintage available

    Pupils per teacher is available for 2024. This is data availability, not a school event.

    high reliabilityknown year
    Show detailsHide 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.

  5. Statistics vintageStatisticsSkolverket

    Qualified teachers: statistics vintage available

    Qualified teachers is available for 2024. This is data availability, not a school event.

    high reliabilityknown year
    Show detailsHide 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.

  6. Authority recordContactSkolverket

    Contact details changed

    From "url: http://stromstad.se/tjarnoskola, email: bun@stromstad.se, phone: 0526-19244" to "url: https://stromstad.se/tjarnoskola, email: bun@stromstad.se, phone: 0526-19000".

    high reliabilityfound in data check
    Show detailsHide 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.

  7. Authority recordNameSkolverket

    Operating name started being reported

    Skolverket started reporting the operating name "Tjärnö skola". This is source history, not a confirmed name change.

    high reliabilityfound in data check
    Show detailsHide 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.

  8. Authority recordHeadmasterSkolverket

    Head changed

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

    high reliabilityfound in data check
    Show detailsHide 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 recordContactSkolverket

    Contact details changed

    From "url: http://www.stromstad.se, email: bun@stromstad.se, phone: 0526-25360" to "url: http://stromstad.se/tjarnoskola, email: bun@stromstad.se, phone: 0526-19244".

    high reliabilityfound in data check
    Show detailsHide 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 recordHeadmasterSkolverket

    Head changed

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

    high reliabilityfound in data check
    Show detailsHide 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 recordNameSkolverket

    School name changed

    From "Tjärnö skola F-6" to "Tjärnö skola F-3".

    high reliabilityfound in data check
    Show detailsHide 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 recordProgrammesSkolverket

    Year levels changed

    From "1, 2, 3, 4, 5, 6" to "1, 2, 3".

    high reliabilityfound in data check
    Show detailsHide 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.

  13. Authority recordContactSkolverket

    Contact details changed

    From "url: http://www.stromstad.se, email: grundskolan.expeditionen@stromstad.se, phone: 0526-25360" to "url: http://www.stromstad.se, email: bun@stromstad.se, phone: 0526-25360".

    high reliabilityfound in data check
    Show detailsHide 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.

  14. Authority recordLocationSkolverket

    Visiting address changed

    From "Tjärnö, 45296 STRÖMSTAD" to "Tjärnövägen 15, 45296 Strömstad".

    high reliabilityfound in data check
    Show detailsHide 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.

  15. Authority recordLifecycleSkolverket

    School started

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

    high reliabilityknown date
    Show detailsHide 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.
    Found in data check
    2013-10-14

Register sources: Skolverket (fetched 5 Jul 2026), the Swedish Schools Inspectorate (fetched 3 Jul 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
139,200 SEK Limited historyThere is still too little history to interpret the trend safely.This affectsCost per studentCosts 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
78,900 SEK
Facilities
27,100 SEK
Meals
8,200 SEK
Learning materials
4,300 SEK
Student health
5,440 SEK

School survey (agree, %)

Safety, year 5
77%
Safety, year 8
76% Limited historyThere is still too little history to interpret the trend safely.This affectsSafety year 8The school survey relies on voluntary responses and results can vary substantially between years for small samples.Read more about the method →
Study peace, year 5
49%
Study peace, year 8
57%
Anti-bullying, year 5
57%
Anti-bullying, year 8
49%
Stimulation, year 5
56%
Stimulation, year 8
52%

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

Demography

Pupil forecast — Strömstad

Number of children in the age group ages 6–15 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 6–15 (2025)1,633
ages 6–15 (2030)1,483
ages 6–15 (2035)1,329
Change 2025→2030-9.2%

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

Strömstad municipality — history (school form: compulsory 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.

Measure20252024202320222021
Pupils1,5131,5051,4971,4581,412
Merit value yr 9231.0215.3221.7217.7240.6
Eligibility for upper secondary54.7%52.4%54.3%52.5%52.5%
Pupils per teacher11.511.711.311.311.1
Cost per pupil150,754 SEK146,388 SEK139,140 SEK136,231 SEK131,564 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

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