Yes, it can happen on YouTube Ads even when your targeting is set to just the U.S.
Here Is Why You Might Be Getting International Clicks Despite U.S. Targeting:
1. VPN or Proxy Users
Some users outside the U.S. use VPNs or proxy servers, which make them appear to be browsing from the U.S. YouTube serves the ad based on that detected IP, even if they’re actually abroad.
2. Google Account Location ≠ IP Location
YouTube sometimes relies on the user’s Google account settings, which may say "U.S." — even if they’re physically elsewhere. This mismatch can let ads slip through.
3. Content Partner Targeting or Embedded Videos
If your ad is running as in-stream or discovery on channels that have an international audience, those viewers might still see your ad if the video is embedded or shared in places outside your target area.
4. Targeting YouTube Search or Watch Pages Broadly
If you're using broad keyword targeting, Google may stretch the targeting slightly to deliver impressions. While rare, it’s more common with high-volume campaigns or small niche audiences.
What You Can Do:
Check “Geography” reports in Google Ads → Locations → Geographic → User Location vs. Matched Location. This will show the true physical location of the click vs. where Google thinks they are.
Exclude known countries manually in “Location Options” (under "advanced settings," select People in your targeted locations only).
If you're using Display or Discovery, consider shifting more spend to in-stream skippable ads where targeting is tighter.
Review YouTube placement exclusions to make sure you're not showing up on globally shared or clickbait-heavy videos.
Unfortunately, no geo-targeting system is perfect — but with a few tweaks, you can tighten it up. Start by analyzing the “User Location” data and adjusting from there.