Do Security Cameras Deter Burglars? What 2024 Data Shows

TL;DR: Studies of convicted and would-be burglars consistently find that visible security cameras stop 50-60% of break-in attempts before they start, ranking just behind loud dogs and occupied-looking homes. Cameras work best as a deterrent when placed at eye level near entry points, paired with visible signage, and backed by decent exterior lighting. A camera alone with no light, no sign, and a dead battery does almost nothing.

_Last reviewed: July 2026 · 7 min read_

You've seen the doorbell camera ads promising to scare off every prowler on the block, and you've probably also seen the news stories where a camera caught a burglary in progress but didn't stop it. Both things are true, and the difference comes down to how the camera is used, not whether you own one.

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Do burglars actually avoid homes with cameras?

Yes, in most cases they do. A widely cited study of 422 incarcerated burglars found that 60% said the presence of a camera would make them abandon a target, and another study out of the UK put avoidance rates for visibly monitored homes near 50%. Burglars interviewed in both studies said cameras rank third on their "don't bother" list, behind occupied homes and barking dogs.

The catch is the word "visible." A hidden camera tucked behind a shutter protects your evidence chain after a break-in, but it does nothing to change a burglar's decision in the 30 seconds they spend sizing up your front door. If deterrence is the goal, the camera has to be seen, not just working.

Where should cameras go to actually stop someone at the door?

Front door, back door, and any ground-floor window are the three spots that matter most, because those are the entry points burglars use in over 80% of residential break-ins according to FBI property crime data. A camera mounted 7 to 9 feet up, angled slightly down, catches a face without being easy to yank off or spray-paint.

Side and back doors get skipped constantly. Owners install one nice video doorbell out front and leave the back door, which faces a fence line and no street traffic, completely uncovered. That's the door burglars actually prefer, since neighbors can't see them working the lock. If you're doing a walk-around of your property's vulnerable points anyway, it's worth checking things you can spot without a ladder, similar to how you'd scan for roof problems visible from the ground — a side door hidden by overgrown shrubs is the security equivalent of a curling shingle nobody notices until it's a problem.

Do fake cameras or just a sign work as well as real ones?

Not as well, but they're not useless either. Studies on deterrent signage alone (no camera at all) show a modest 10-15% reduction in break-in attempts, mostly because burglars want the fastest, lowest-risk target and will move to the house next door that has neither sign nor camera. A fake camera with a blinking light fools some, but professional burglars know the tells: no wiring, wrong mounting height, plastic housing that doesn't match real brands.

If budget is the concern, one real camera at the front door plus a sign at the back gate beats two fake cameras everywhere. Real footage also matters for insurance. Many carriers offer 5-10% discounts on homeowners premiums for monitored security systems, and that discount usually requires proof the system is functional, not just visible.

| Real camera, no monitoring | Monitored camera + alarm | |---|---| | Deters casual/opportunistic burglars | Deters casual and some determined burglars | | No response if triggered | Alerts police or monitoring center | | $50-$200 per camera | $15-$60/month monitoring fee on top of hardware | | Good evidence after the fact | Good evidence + faster response time |

What ruins a camera's deterrent effect even if it's installed?

Poor lighting, dead batteries, and bad angles are the three most common failures. A camera pointed at a pitch-black porch at 2 a.m. captures a grainy silhouette, not a usable image, and burglars know most nighttime footage from unlit entries is worthless in court. Pairing a camera with a motion-activated floodlight roughly doubles its deterrent value, since the light itself is the first thing that spooks someone, and the camera confirms what the light already scared off.

Battery-powered cameras also die quietly. Homeowners install one, forget about it, and six months later the app hasn't sent a notification in weeks because the battery's been dead since spring. If you're running a hardwired system, that's also the moment to double check your home's electrical capacity can handle it. Homes still wired for knob-and-tube or running on outdated 100-amp service sometimes struggle to add exterior lighting circuits and camera systems without an electrician's involvement first.

What about wiring cameras into an older electrical panel?

This trips up more owners than expected, especially in homes built before 1980. Hardwired cameras and floodlights need a dedicated, grounded circuit, and outlets on older 2-prong systems can't safely support that load. If your exterior outlets are still 2-prong, it's worth reading up on how to upgrade them safely before an installer shows up and finds out mid-job that the panel needs work too. Budget an extra $150-$400 if an electrician needs to add a circuit, on top of the $200-$600 typical cost of a mid-range camera system.

FAQ

Do burglars know how to disable security cameras?

Experienced burglars know common tricks like spray paint, bagging, or cutting visible wires, but this takes time and confidence most opportunistic burglars don't have. A camera mounted 8+ feet high with a hardwired connection (not easily unplugged) resists most of these attempts long enough to capture a usable image.

Are video doorbells as effective as full camera systems?

For front-door deterrence, yes, a $100-$250 video doorbell covers the most common entry point and shows up as visible signage in itself. It doesn't cover back doors or ground-floor windows, so pair it with at least one more camera if those areas are exposed.

How much do security cameras cost to install for a whole house?

A basic 4-camera system runs $200-$600 for equipment, with professional installation adding $300-$800 depending on wiring complexity. Monitoring subscriptions, if added, typically run $15-$60 a month.

Do security cameras lower homeowners insurance premiums?

Many insurers offer 5-10% discounts for monitored security systems, though a standalone camera with no monitoring service often doesn't qualify. Check with your specific carrier, since the discount threshold varies by state and company.

Does camera footage actually help catch burglars after the fact?

Clear daytime footage helps often; nighttime footage without adequate lighting is frequently too grainy for identification. Police recovery rates improve significantly when footage includes a clear face or license plate, which is why pairing cameras with motion-activated lighting matters as much as the camera itself.

This is educational information, not security or legal advice. Consult a licensed security installer or your local police department's crime prevention unit for a property-specific assessment.