What Are Negative Keywords and Why Do St. George, Utah Businesses Need Them in Google Ads?

If you are running Google Ads for your St. George, Utah business and your budget seems to disappear without producing real leads, negative keywords are almost certainly part of the problem. Negative keywords are the terms you tell Google not to show your ads for. Without them, Google will match your ads to searches that have nothing to do with what you sell, and you will pay for every single click. For small businesses across Washington County, from Hurricane to Ivins to Santa Clara, every wasted dollar on an irrelevant click is a dollar that could have gone toward a real customer. This guide explains exactly what negative keywords are, why they matter for PPC campaigns in Southern Utah, and how to build a negative keyword strategy that protects your ad budget and improves your results.

What Are Negative Keywords?

A negative keyword is a word or phrase you add to your Google Ads campaign to prevent your ad from showing when someone searches for that term. Think of it as a filter. You are telling Google: “My ad is relevant to these searches, but definitely not those ones.”

For example, if you own a plumbing company in St. George and you bid on the keyword “plumber,” Google might also show your ad to someone searching “how to become a plumber” or “plumber salary.” Those people are not looking to hire you. By adding “how to become” and “salary” as negative keywords, you stop paying for those useless clicks.

Negative keywords are one of the most powerful budget-protection tools available inside Google Ads, yet they are also one of the most consistently ignored settings among small business owners running their own campaigns.

How Negative Keywords Work in Google Ads

When someone types a search query into Google, the platform runs an auction to decide which ads to show. Google uses your keyword list to determine eligibility, but it also applies broad interpretation to match your ads to related searches. This is where things get expensive fast if you are not careful.

Negative keywords work by creating exclusions at the campaign or ad group level. When Google sees a search query that contains one of your negative keywords, it automatically skips your ad for that search. No impression, no click, no charge.

You can apply negative keywords at three levels: the ad group level (only affects one ad group), the campaign level (affects all ad groups within that campaign), or through a shared negative keyword list (affects multiple campaigns at once). Choosing the right level depends on how your account is structured.

The Three Types of Negative Keyword Match

Negative Broad Match

This is the default match type for negative keywords. Your ad will not show if the search contains all the words in your negative keyword, in any order. For example, if your negative broad match keyword is “free estimate,” your ad would be blocked for “free estimate plumber” and “plumber free estimate.” This is the widest-reaching exclusion option.

Negative Phrase Match

Your ad will not show if the search contains your negative keyword phrase in the exact order you listed it. Using the same example, “free estimate” as a negative phrase match would block “free estimate plumber” but might still allow “estimate for free from a plumber.” Use this when you want more precise control over what you block.

Negative Exact Match

Your ad is only blocked when the search query exactly matches your negative keyword, with no additional words. This is the most narrow option and is useful when you want to exclude a very specific query without accidentally blocking closely related, valuable searches.

Why St. George Businesses Specifically Need Negative Keywords

St. George is a growing city. Washington County added more than 20,000 residents between 2015 and 2020 according to U.S. Census data, and the metro area continues to attract new residents and businesses. That growth means more local competitors bidding on the same keywords, which drives up cost-per-click prices.

When your clicks are expensive and your budget is limited, you simply cannot afford to waste money on irrelevant traffic. A plumber in St. George paying $18 per click who is getting 30 percent of their clicks from non-buyers could be throwing away hundreds of dollars every single week.

Southern Utah also has a unique mix of tourism, retirees, construction, and service-based businesses. That variety creates unusual search patterns. A roofing company might accidentally show ads to people searching for roofing in Las Vegas or Salt Lake City if geographic and keyword exclusions are not set up properly. Negative keywords work hand in hand with location targeting to keep your ads tightly focused on the people most likely to actually call you.

The Real Cost of Skipping Negative Keywords

Let’s put real numbers to this. Suppose your Google Ads campaign spends $1,500 per month and your average cost-per-click is $10. That means you are getting roughly 150 clicks per month. If 25 percent of those clicks are from irrelevant searches because you have no negative keywords in place, you are wasting $375 every single month.

Over a full year, that is $4,500 spent on people who were never going to buy from you. For a small business in Hurricane, Washington, or Cedar City, that is a meaningful amount of money that should be going toward actual customers.

Beyond the direct budget waste, irrelevant clicks drag down your click-through rate (CTR), which damages your Quality Score. A lower Quality Score means Google charges you more per click for the same ad position. The problem compounds itself the longer you ignore it.

How to Find the Right Negative Keywords for Your Campaign

Start With the Search Terms Report

The most important tool for finding negative keywords is the Search Terms report inside Google Ads. This report shows you the actual queries people typed before clicking your ad. Review it at least once per week, especially in the first 60 days of a new campaign. You will almost always find searches that have nothing to do with your business.

To access it, go to your Google Ads account, click on “Keywords” in the left navigation, then select “Search Terms.” Sort by cost to find the most expensive irrelevant queries first. Add anything that is clearly off-target to your negative keyword list immediately.

Use Keyword Research Tools Before You Launch

Before a campaign even goes live, you can use tools like Google’s Keyword Planner, Semrush, or even simple Google autocomplete to anticipate bad-match searches. Type your primary keywords into Google and look at what suggestions appear. If any of those suggested searches are irrelevant to your business, add them to your negative list before you spend a single dollar.

Think Like a Searcher Who Would Never Buy From You

One of the most useful exercises is to brainstorm who you do not want clicking your ads. Students researching a topic? Job seekers? People in other states? Competitors checking your ads? Each of these groups has search patterns you can identify and exclude. For a St. George HVAC company, that might mean adding “DIY,” “how to fix,” “jobs,” “careers,” and “Las Vegas” as negative keywords to start.

Building Your Negative Keyword List: A Practical Starting Point

Every Google Ads account should have a foundational negative keyword list loaded before the first campaign goes live. Here are categories to address immediately:

• Job and career terms: jobs, careers, hiring, salary, resume, how to become
• Free and DIY terms: free, DIY, how to, tutorial, YouTube, course
• Research and informational terms: what is, definition, history of, Wikipedia
• Competitor brand names: if you are not running a conquesting campaign, exclude competitor names to avoid paying for those clicks
• Irrelevant geographic terms: cities or states outside your service area
• Product or service variants you do not offer: if you only do commercial roofing, add “residential” as a negative; if you only serve St. George, exclude “Las Vegas” and “Salt Lake”

This is a starting point, not a complete list. Your industry will have its own specific irrelevant terms. The goal is to refine your list continuously based on real search data from your campaigns.

Using Shared Negative Keyword Lists in Google Ads

If you are running multiple campaigns in your Google Ads account, shared negative keyword lists are a huge time-saver. Instead of adding the same exclusions to every individual campaign, you create one list and apply it to as many campaigns as you want. When you update the shared list, every connected campaign updates automatically.

To set one up, go to Tools and Settings in Google Ads, then click “Shared Library” and select “Negative Keyword Lists.” Create a list, populate it with your core exclusions, and then apply it to each relevant campaign. This is especially useful for businesses in St. George that are running separate campaigns for different services, such as one campaign for emergency plumbing and another for bathroom remodels.

Common Negative Keyword Mistakes That Hurt Campaigns

Being Too Aggressive With Exclusions

Adding too many negative keywords can accidentally block searches from real potential customers. If a dental office in St. George adds “free” as a negative exact match broad keyword, they might block someone searching “free consultation dental St. George,” which could be a high-intent lead. Review your exclusions periodically to make sure you have not over-blocked valuable traffic.

Never Updating the List

Search behavior changes over time. New products, trends, and seasonal patterns create new irrelevant search queries your original list did not anticipate. Set a recurring calendar reminder to review your Search Terms report and update your negative keyword list at least once per month.

Applying Negatives at the Wrong Level

If you add a negative keyword at the campaign level when you only needed to exclude it from one ad group, you might accidentally block traffic from another ad group where that keyword is actually relevant. Think carefully about scope before you apply any exclusion, and document your reasoning so you can revisit it later.

How Negative Keywords Affect Your Google Ads Quality Score

Google assigns every keyword in your account a Quality Score on a scale from 1 to 10. This score is based on expected click-through rate, ad relevance, and landing page experience. A higher Quality Score means you pay less per click for the same or better ad position. You can learn more about how this works in our post on what Google Ads Quality Score means for your campaign.

Negative keywords improve your Quality Score indirectly by making your ad more relevant to the searches that do see it. When you cut out irrelevant impressions and clicks, your CTR goes up because the people who do see your ad are more likely to click it. A higher CTR signals to Google that your ad is a good match for the query, which pushes your Quality Score higher over time.

Better ad copy also supports this process. If you want to see how ad copy and negative keywords work together to improve performance, read our guide on how to write a Google Ad that actually converts. The two strategies reinforce each other. Clean keyword targeting brings the right audience; strong ad copy turns them into clicks and calls.

The bottom line is that negative keywords are not just a budget tool. They are a relevance tool, and relevance is the foundation of everything Google rewards in its advertising platform.

Frequently Asked Questions

1. What are negative keywords in Google Ads?

Negative keywords are specific words or phrases you add to a Google Ads campaign to prevent your ads from appearing when those terms are part of a user’s search query. They act as exclusion filters, telling Google which searches are not relevant to your business. For example, a St. George landscaping company might add “artificial” as a negative keyword if they only work with natural plants and grass. Without negative keywords, Google’s broad matching can show your ads to people with completely different needs. Using them correctly reduces wasted spend and improves overall campaign performance.

2. Why do St. George, Utah businesses need negative keywords?

St. George is a competitive and growing market where cost-per-click prices are rising alongside the local population. Small businesses here often operate with limited advertising budgets, which means every irrelevant click has a real financial impact. Negative keywords help ensure that a St. George HVAC company, dental office, or law firm is only paying for traffic from people who are actually looking for their services. They also help with geographic filtering, which is important in Southern Utah where Google might otherwise show local ads to people searching from Las Vegas or Salt Lake City. Proper negative keyword use can meaningfully improve both return on ad spend and lead quality.

3. How do I find negative keywords for my Google Ads campaign?

The most reliable source of negative keywords is the Search Terms report inside Google Ads, which shows the actual queries that triggered your ads and led to clicks. Reviewing this report weekly, especially in a new campaign’s first 60