How to Use Google Ads Customer Lists to Reach the Right People in Your Database

How do I run Google ads to a specific list of people using a customer list?

If you want to run Google ads to a specific group of people, you can upload a customer list inside Google Ads using contact information like email addresses, phone numbers, names, ZIP codes, and country. When your data is formatted correctly and your account is eligible, Google can match that information to users and help you run highly targeted campaigns.

Why Google Ads Customer Lists Matter

If you work in real estate, title, lending, sales, or really any business where you have a database, this is a powerful tool to know about.

Most people think of Google Ads as broad targeting. They think search ads, display ads, YouTube ads, and trying to get in front of cold traffic. That is obviously one way to use Google Ads, but it is not the only way.

One of the smarter ways to use it is to market directly to a list of people you already know, or at least a list of people whose contact information you already have permission to use. That could be your past clients, your sphere, your farm list, your leads, your referral partners, or your customer database.

That is where Google Ads customer lists come in.

This works a lot like custom audiences on Meta through Facebook and Instagram. The idea is simple. Instead of advertising to everyone, I can upload a list of real people and try to put my ads in front of just them. That creates a much more focused campaign and usually a much more relevant one too.

For real estate agents, this can be a huge advantage. You may want to stay in front of your database. You may want to re-engage old leads. You may want to advertise a home valuation offer, a new listing, a neighborhood update, or a seller guide to people who already know your name. Instead of hoping the right people see your marketing, you can get far more intentional.

What a Google Ads Customer List Actually Is

A Google Ads customer list is a file you upload into Google Ads that contains contact information for the audience you want to target.

That list can include:

• Email addresses

• Phone numbers

• First names

• Last names

• ZIP codes

• Country

• Mailing addresses in some cases

Google then tries to match that information with users in its system. Once enough people match, you may be able to use that audience for certain campaign types and targeting options.

This is important because Google is not just taking your raw spreadsheet and magically showing ads to everyone on it. There has to be a match. Some data will match. Some will not. That is why your data quality matters so much.

The better your data, the better your chances of building a usable audience.

Who Should Use This

I would pay attention to this if you are:

• A real estate agent with a CRM or past client database

• A lender with a client list

• A title rep helping agents think more strategically about marketing

• A business owner trying to stay in front of warm contacts

• Anyone in sales who already has a list of leads or customers

If you already have a database, you already have a potential audience. The big mistake is letting that database just sit there untouched.

Most people are sitting on marketing opportunities they never use simply because they do not know where to start.

Before You Get Too Excited, There Is One Catch

Not every Google Ads account will automatically have access to customer lists.

According to the walkthrough in the video, your account generally needs to be in good standing and may need to meet certain spending or account history requirements before this feature becomes available.

That means this is not always something a brand-new account can use on day one.

Still, it is worth checking because once the feature becomes available, it opens up a completely different level of targeting.

Where to Find Customer Lists in Google Ads

Inside Google Ads, the path is straightforward.

You go to:

Google Ads → Tools → Shared Library → Audience Manager

Once you are inside Audience Manager, you can see your existing data segments and create new ones. If you click the blue plus button, one of the options available is Customer List.

That is the section where you upload your file and build the audience.

If you have never looked in Audience Manager before, it is worth spending a few minutes in there. You can see what lists you have created, how large they are, and whether they are actually usable.

Why Match Rate Is So Important

This is one of the biggest takeaways.

Just because you upload a list does not mean Google can use all of it.

Some contacts will not match. Some data will be incomplete. Some phone numbers will be wrong. Some emails may be outdated. The result is that your usable audience may be much smaller than the original spreadsheet you uploaded.

That is why list size matters.

If your list is tiny to begin with, and then only part of it matches, you may end up below Google’s minimum threshold. In the walkthrough, one uploaded list was too small to use because it had fewer than 100 matched users.

That matters a lot.

A database of 80 people may sound decent, but if only a portion of it matches, it may not turn into a usable customer list inside Google Ads. A larger database gives you a better shot.

So if you want this strategy to work, think in terms of both quantity and quality.

How to Format Your Spreadsheet Correctly

This is the part that trips people up.

If your spreadsheet is not formatted correctly, you are going to waste time and lower your match rate.

Based on the walkthrough, the spreadsheet should use clearly labeled columns such as:

• First Name

• Last Name

• Phone

• Email

• ZIP

• Country

If you have multiple phone numbers for a person, you can add additional phone columns. That is totally fine. More data can help.

But the formatting has to be clean.

Phone Number Formatting Matters a Lot

For U.S. phone numbers, the country code 1 needs to be added in front of the number. On top of that, special characters should be removed.

That means no:

• Parentheses

• Dashes

• Spaces

• Periods

So instead of a phone number looking like this:

(303) 555-1212

It should look like this:

13035551212

That may sound small, but this is the kind of detail that can make or break your upload.

If the formatting is wrong, Google may not properly read or match the data. That means worse results, smaller audiences, and more frustration.

Country Field

The country field also needs to be formatted correctly. For the United States, use:

US 

Again, simple detail, but very important.

Step-by-Step: How I Would Upload a Customer List

Here is the clean version of the process.

1. Log in to Google Ads

Go to your Google Ads account and open the overview page.

2. Open Audience Manager

Go to Tools, then Shared Library, then Audience Manager.

3. Create a New Data Segment

Click the blue plus button and choose Customer List.

4. Choose Manual Upload

Select the option to upload a file manually.

5. Name Your List

Give it a name that helps you stay organized. If you plan to do more of these over time, naming matters. A clear naming structure saves you a lot of confusion later.

6. Upload the Spreadsheet

Use your prepared CSV file with properly formatted data.

7. Save and Continue

Once uploaded, follow the instructions, confirm everything looks correct, and continue.

8. Submit the List

After submission, Google usually takes about 48 hours to analyze the data and show match results.

9. Check the Results

Come back after a couple of days and review:

• What matched

• How large the audience is

• Whether the list is usable

• What the match rate looks like

This is where you learn whether your data was strong enough and whether you need to improve your formatting or grow the list.

Real Estate Use Cases I’d Actually Recommend

This strategy gets really practical when you apply it to how real estate professionals actually work.

Stay in Front of Your Sphere

If you have a database of past clients, leads, and people in your sphere, this can help you stay top of mind with ads that reinforce your brand.

Think homeowner tips, market updates, or local content.

Target Past Leads

Maybe you have people who never converted but are still worth staying in front of. A customer list can help you re-engage them through Google’s ecosystem.

Market to a Niche Segment

You may want to separate sellers, buyers, investors, or past clients into different lists and speak to each group differently.

Support Other Marketing Channels

This does not replace email, social media, or direct mail. It complements them.

That is a big point.

Good marketing is usually not about one magic tactic. It is about multiple touchpoints working together. If someone is on your email list, sees your ad, watches your video, and recognizes your brand, that consistency matters.

Common Mistakes to Avoid

Mistake 1: Uploading a List That Is Too Small

If the matched audience is too small, it may not be usable.

Mistake 2: Bad Spreadsheet Formatting

This is one of the easiest ways to sabotage the process. Clean data wins.

Mistake 3: Using Weak or Incomplete Data

If all you have is a first name and an old email, do not expect amazing match rates.

The more accurate data you have, the better.

Mistake 4: Being Disorganized

Name your audiences clearly. Keep track of what list is what. Otherwise, you are going to create chaos inside your account.

Mistake 5: Treating This Like a One-Time Trick

This is not just something to test once and forget. This can become part of your long-term marketing strategy if you consistently build and clean your database.

Why This Matters More Than Most Agents Realize

A lot of agents are focused on getting more leads, but they are not doing enough with the leads and contacts they already have.

That is the bigger opportunity.

Your database is one of the most valuable assets in your business. It is not just a spreadsheet. It is your audience. It is your follow-up engine. It is your future referral base. It is your retargeting pool.

When you start seeing it that way, marketing gets a lot more strategic.

Instead of constantly chasing strangers, you can spend more time staying visible to people who are already more likely to know, trust, or remember you.

My Takeaway

If you already have a database, I would absolutely be paying attention to Google Ads customer lists.

This is one of those tools that can quietly give you a big edge because most people either do not know it exists or never take the time to set it up correctly.

The biggest things to focus on are simple:

• Make sure your Google Ads account is eligible

• Build a large enough list

• Format your spreadsheet correctly

• Upload it into Audience Manager

• Review your match rate and improve from there

  
  

This is not complicated once you understand the steps. It is just detail-oriented.

And honestly, that is where a lot of marketing wins happen.

Final Takeaway

If you want to run more targeted Google Ads and stop relying only on broad audiences, customer lists are worth learning. For real estate agents, lenders, title reps, and anyone else working from a relationship-based business, this is one more way to turn your database into a real marketing asset instead of letting it sit there unused.

Questions? Contact:

If you want more real estate tools, resources, and marketing ideas, subscribe at MileHighTitleGuy.com/subscribe for exclusive access and event invites.

Questions? Contact:

Jerad Larkin

Phone: 303.630.9430

Email: Info@MileHighTitleGuy.com