School Security Statistics School Security Camera Statistics and K-12 Safety Measures, Every Figure Traced to Its Source
School safety is an area where bad numbers travel fast, usually because someone is selling something. Every statistic on this page names the survey it came from and the school year it describes. Where a widely quoted figure cannot be verified, we say so rather than repeat it.
In the 2021 to 2022 school year, 93 percent of US public schools used security cameras to monitor the school, up from 61 percent in 2009 to 2010, the largest increase of any safety measure the federal government tracks. Cameras are now more common in American public schools than security staff: only 61 percent of schools had one or more security staff present at least once a week. Controlled building access and visitor badge requirements are near universal at 97 percent each, while metal detectors remain rare, with just 2 percent of schools doing daily checks. All figures come from the School Survey on Crime and Safety (SSOCS), run by the National Center for Education Statistics at the US Department of Education.
School Safety and Security Measures, 2021 to 2022
These are the percentages of US public schools reporting each measure, from the most recent SSOCS collection published by NCES. Note the school year: this is 2021 to 2022 data, published in 2024, and it is the current federal figure. Anyone quoting a "2026 school security statistic" from this survey is quoting this same data with a fresher label on it.
| Safety measure | % of public schools | Source and year |
|---|---|---|
| Security cameras used to monitor the school | 93% | NCES SSOCS, 2021 to 2022 |
| Security cameras, elementary schools | 91% | NCES SSOCS, 2021 to 2022 |
| Security cameras, middle schools | 96% | NCES SSOCS, 2021 to 2022 |
| Security cameras, high schools | 97% | NCES SSOCS, 2021 to 2022 |
| Security cameras, change over time | 61% to 93% | NCES SSOCS, 2009 to 2010 vs 2021 to 2022 |
| Controlled access to buildings during school hours | 97% | NCES SSOCS, 2021 to 2022 |
| Visitors must sign in or check in and wear badges | 97% | NCES SSOCS, 2021 to 2022 |
| One or more security staff present at least once a week | 61% | NCES SSOCS, 2021 to 2022 (was 65% in 2019 to 2020) |
| Security staff, elementary schools | 49% | NCES SSOCS, 2021 to 2022 |
| Security staff, high schools | 82% | NCES SSOCS, 2021 to 2022 |
| Anonymous threat reporting system | 62% (was 36%) | NCES SSOCS, 2021 to 2022 vs 2009 to 2010 |
| Random metal detector checks | 6% | NCES SSOCS, 2021 to 2022 |
| Daily metal detector checks | 2% | NCES SSOCS, 2021 to 2022 |
| Requires clear or bans book bags | 4% | NCES SSOCS, 2021 to 2022 |
| CCTV effect on crime, all settings (meta analysis) | 13% reduction overall | Piza, Welsh, Farrington and Thomas, 2019, pooling 80 evaluations |
| CCTV effect when cameras are passively monitored | Not statistically significant | Piza et al., 2019 |
Primary source: School Survey on Crime and Safety (SSOCS), National Center for Education Statistics, US Department of Education, 2021 to 2022 school year, published July 2024. Percentages are rounded as published.
What These Numbers Actually Tell a District
Read the two most important lines next to each other. Ninety three percent of schools have cameras. Sixty one percent have any security staff on site even once a week. In elementary schools it is 49 percent. So in a large share of American schools there are cameras running and, on a normal Tuesday morning, no one whose job it is to look at them.
That gap is the whole story, and it is why "we should get cameras" is no longer a useful proposal in a district budget meeting. You already have cameras. The question is what watches them during fourth period, and whether the footage from three weeks ago can be found in under a minute when a parent calls.
The research reinforces the point rather than softening it. The largest meta analysis of CCTV, pooling 80 evaluations, found about a 13 percent crime reduction overall, but no statistically significant effect for passively monitored camera systems. A camera that records to a closet is evidence collection, not prevention. Both are worth having. Only one of them is what people think they are buying. We work through that literature in do security cameras deter crime.
There is a compliance dimension too. School safety mandates now vary considerably by state, covering everything from mandatory threat assessment teams to camera retention periods to who may access footage under FERPA, and districts increasingly need a way to track which obligations apply to them and prove they are meeting each one. Footage policy is quietly part of that, because a video that identifies a student can be an education record.
School Security Numbers We Will Not Print
Three categories of figure circulate constantly in school security marketing. We have left them out on purpose, and here is why, so you can leave them out too.
Conflicting school shooting counts
Different trackers count incidents differently. Some include any firearm discharged on school property, including after hours, parking lot disputes, and suicides. Others count only targeted attacks during school hours. The resulting totals differ by an order of magnitude and are routinely quoted interchangeably. If you cite a count, cite the tracker and its inclusion criteria in the same breath, or the number means nothing.
Vendor "response time reduced by X percent" claims
These come from vendor case studies with no published methodology, no control school, and no independent verification. We sell video analytics software and we still will not quote them, because a number you cannot check is worth exactly nothing in a board presentation where somebody will check it.
Market size forecasts behind a paywall
The school security market is projected to reach some large number by some future year, according to a report you cannot read without paying several thousand dollars. We decline to launder paywalled forecasts into free content. If we cannot see the methodology, we cannot vouch for the figure.
Questions About School Security Data
What percentage of schools have security cameras?
In the 2021 to 2022 school year, 93 percent of US public schools used security cameras to monitor the school, according to the federal School Survey on Crime and Safety. That breaks down to 91 percent of elementary schools, 96 percent of middle schools, and 97 percent of high schools. It was 61 percent in the 2009 to 2010 school year.
Do security cameras in schools actually reduce crime?
The evidence is mixed and depends entirely on monitoring. The largest meta analysis, pooling 80 CCTV evaluations, found roughly a 13 percent crime reduction overall but no statistically significant effect where cameras were only passively monitored. Cameras reliably produce evidence after an incident. They prevent incidents only when something or someone is actually watching.
How many schools have a school resource officer or security staff?
Sixty one percent of US public schools had one or more security staff present at least once a week in 2021 to 2022, down from 65 percent in 2019 to 2020. Coverage is very uneven: 82 percent of high schools and 78 percent of middle schools, but only 49 percent of elementary schools.
Do schools use metal detectors?
Rarely. Just 2 percent of US public schools performed daily metal detector checks on students in 2021 to 2022, and 6 percent did random checks. Despite how often metal detectors come up in school safety debates, they remain one of the least adopted measures in American public education.
What is SSOCS and how current is the data?
SSOCS is the School Survey on Crime and Safety, a nationally representative survey of US public school principals run by the National Center for Education Statistics. The most recent published collection covers the 2021 to 2022 school year and was released in 2024. It is the authoritative federal source, and it is not updated annually, so be suspicious of anyone quoting fresher SSOCS numbers.
Can schools legally record students on camera?
Generally yes, in common areas like hallways, entrances, cafeterias, and parking lots, and 93 percent of public schools do. Restrooms and locker rooms are off limits. Audio recording is treated far more strictly than video under federal and state wiretap law, and footage that identifies a specific student may be an education record under FERPA, which affects who can view it and how requests are handled.
Your district already has the cameras
Surveillant is the AI layer that watches them. It runs on the ONVIF and RTSP cameras a school already owns, flags what needs a human, and makes months of footage searchable in plain English.