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Who is seeing your ads?

You can choose your customers before they choose you.

Google has a lot of data. It (mostly) knows the age, gender and parental status of the people searching.

This lets you focus your budget on the people most likely to buy.

Why this matters:

• If you sell retirement plans, you may not want to pay for clicks from 18-year-olds.

• If you sell women’s clothing, you might not want to pay for clicks from men.

• If you sell luxury cars, you may want to target the top 10% household income bracket (available in some countries).

By default, Google shows your ads to everyone. Demographic targeting helps you narrow that focus.

The Power of Bid Adjustments

It’s not just "On or Off." It’s "Pay More or Pay Less."

You don’t always have to exclude a group completely. Often the smarter move is a bid adjustment, which tells Google to change your bid based on who is searching.

Decrease bid (−): "I want these clicks, but they are worth less to me."
Example: Decrease "18–24" by −50%. If your normal bid is $2.00, you bid only $1.00 for this group.

Increase bid (+): "These are my best customers."
Example: Increase "35–44" and "45–54" by +30% to compete harder for this group.

Exclude: "I never want these clicks."
Example: Exclude an age range you can’t sell to.

Note: With Smart Bidding strategies (like Maximize conversions or Target CPA), demographic bid adjustments are ignored, except −100% (exclude).

The "Unknown" Category Trap

Why you should be careful before excluding this group.

In your demographics report, you will see a large group called "Unknown."

What is it? These are users whose age or gender Google cannot identify. This includes:

• People not signed in to a Google account.
• People using privacy-focused browsers or ad blockers.
• People who turned off ad personalization.

The mistake: New advertisers often think: "I only want men, so I’ll exclude 'Female' and 'Unknown'." Don’t do this by default. "Unknown" can be a large share of your traffic. Excluding it may block real customers who simply value their privacy. Only exclude it if your data shows it is wasting money.

How to Set It Up (And The Bot Risk)

Step-by-step instructions.

1. Select your campaign or ad group.

2. In the left menu, go to Audiences, keywords, and content › Demographics.

3. Choose the tab you need (Age, Gender, Parental status, Household income).

4. Click the bid adjustment cell next to a group and enter a percentage (e.g., +20%).

The ClickSambo reality check: Bots don’t have real ages, but they can fake them. Some click farms use signed-in Google accounts with fake profiles that appear as "Male, 35–44," which helps them blend in with your high-value traffic.

Check: If your "best" demographic gets lots of clicks but no sales, it might be fraud. ClickSambo helps you spot and block it.