Bäckhammarskolan in Surahammar
Headmaster: Helen Porsch
45 /100
Skolkoll Score 45 out of 100. The scale goes from 0 (lowest) to 100 (highest). 50 is the average. This value is below average. What is the Skolkoll Score? Bäckhammarskolan is a medium-sized municipal compulsory school with 100 pupils.
Bäckhammarskolan is a medium-sized municipal compulsory school with 100 pupils. The share of qualified teachers (53%) is below the national average of 74%.
- 100PupilsMunicipality: 1,120High reliability
- 53%Qualified teachersMunicipality: 70% · Sweden: 74%High reliability
- 8.2Pupils per teacherMunicipality: 11.9 · Sweden: 12.1High reliability
- 138,580 SEKCost per pupil (municipal avg.)Sweden: 142,155 SEKLimited history
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) |
|---|---|---|---|---|
| 2526 | 100 | 53% | — | — |
| 2425 | — | 36% | — | — |
| 2324 | — | 45% | — | — |
| 2223 | — | 31% | — | — |
| 2122 | — | 38% | — | — |
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. Source events and computed signals are shown separately so authority data is not mixed with deviation indicators.
Most significant registered changes
3 priority events out of 8 total: Lifecycle — School started; Signal — Pupils per teacher changed unusually much; Signal — Qualified teachers changed unusually much.
All 8 Lifecycle 1 Statistics 3 Signal 4
high 4 medium 4 low 0
12 months3 years10 yearsAll
Quick overview
Few, high-confidence events for guardians and pupils. Low-confidence events, statistics publications, and technical source traces appear in the views below.
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Lifecycle School started
Skolverket records 2013-10-01 as the start date for this compulsory school operated by SURAHAMMARS KOMMUN, current status AKTIV.
Source history
Name, operator, status and headmaster changes; inspection decisions; statistics publications; and traceable group history. These rows are source-tagged with origin and confidence.
No source-tagged name, operator, status, headmaster, inspection, statistics or group events for Bäckhammarskolan in the sources Skolkoll holds locally.
In-depth analysis
Indications, low-confidence rows, statistics publications, and technical source history — for school leaders, journalists, and analysts.
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Statistics Pupil count: statistics vintage available
Pupil count is available for 2026. This is data availability, not a school event.
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Statistics Pupils per teacher: statistics vintage available
Pupils per teacher is available for 2026. This is data availability, not a school event.
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Statistics Qualified teachers: statistics vintage available
Qualified teachers is available for 2026. This is data availability, not a school event.
Computed signals
Larger year-over-year movements in historical key figures. These rows are Skolkoll's computations from existing history and should NOT be read as authority decisions or quality judgements.
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Signal Qualified teachers changed unusually much
Qualified teachers increased by 17 pp from 36% to 53% between 2025 and 2026. This is a calculated signal, not a register decision.
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Signal Pupils per teacher changed unusually much
Pupils per teacher increased by 24% from 7.0 to 8.7 between 2024 and 2025. This is a calculated signal, not a register decision.
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Signal Pupils per teacher changed unusually much
Pupils per teacher decreased by 23% from 9.1 to 7.0 between 2023 and 2024. This is a calculated signal, not a register decision.
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Signal Qualified teachers changed unusually much
Qualified teachers increased by 14 pp from 31% to 45% between 2023 and 2024. This is a calculated signal, not a register decision.
Register sources: Skolverket (fetched 27 May 2026), Skolinspektionen (fetched 3 May 2026), and group lookup from Bolagsverket/Skolkoll. Computed signals are tagged with source "Skolkoll calculation" and have year-level date precision.
Spotted something 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
School survey (agree, %)
Source: Skolverket Statistical Database (Statistikdatabasen). Updated annually.
Pupil forecast — Surahammar
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.
Source: SCB (population forecast for Surahammar municipality, by school-form age group).
Surahammar 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.
| Measure | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|
| Pupils | 1,128 | 1,150 | 1,145 | 1,139 | 1,101 |
| Merit value yr 9 | 221.4 | 215.7 | 214.0 | 222.6 | 213.7 |
| Eligibility for upper secondary | 70.0% | 67.7% | 71.1% | 68.8% | 66.5% |
| Pupils per teacher | 11.5 | 12.2 | 11.2 | 11.5 | 12.3 |
| Cost per pupil | 138,580 SEK | 134,870 SEK | 133,818 SEK | 129,791 SEK | 123,252 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.
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Pupil count, qualifications, grades, teacher numbers per school
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Model-based expected results based on pupil composition
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Inspection decisions, remarks, complaints
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Fetch date is missing in dataset metadata; no school-register date is used as a substitute.
Population and economic data
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Municipal key figures, financial data per school form
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Fetch date is missing in dataset metadata; no school-register date is used as a substitute.
Property register, buildings, orthophotos (CC BY 4.0)
Methodology and definitions
- Skolkoll methodology (overview) — how data is fetched, validated and displayed.
- Skolkoll Score — calculation, weighting, interpretation guide.
- SALSA model — what it measures and what it doesn't.
- Qualified teachers — definition and data source.
- Corrections policy — how errors are fixed and documented.
Export
Download data for your own analysis. Files are CSV with UTF-8 encoding.