Is Zillow Accurate for My Home Value in Puyallup?

by Austin Robertson

Zillow is a fair starting point and a poor finish line. Zillow's own figures put the Zestimate's median error near 7% for homes that are not for sale. On a typical Puyallup home, that is about $40,000 in either direction.

Almost everyone checks their Zestimate. I do not blame them. It is free, it is instant, and it is sitting right there.

The question is how much weight to put on it. Zillow answers that itself, and the answer is more modest than most people expect.

What Zillow says about its own accuracy

Zillow publishes a median error rate for the Zestimate on its Zestimate page. The nationwide figures reported from that page in 2025 were:

Zestimate median error, nationwide

Homes not for sale: 7.06%

 

Homes listed for sale: 1.94%

 

Source: Zillow nationwide median error rates, as published March 2025.

"Median error" means half of all estimates land closer than that figure and half land farther away. So for a home that is not on the market, half of Zestimates are off by more than 7%.

What that looks like in Puyallup dollars

Zillow puts the typical Puyallup home at $565,156. Run the error rates against that number:

Situation Median error Dollars on a $565,156 home
Not listed for sale 7.06% about $39,900
Listed for sale 1.94% about $11,000

A $40,000 swing is the difference between a comfortable move and one that does not pencil out. And remember, that is the median. Plenty of homes miss by more.

Why it gets so much better once a home is listed

The estimate tightens up after listing because the algorithm suddenly has better information: the list price, fresh photos, and a description written by someone who has seen the house. In other words, it gets accurate after a person has already done the pricing.

That is the wrong order if you are trying to decide what to list for.

Where the Zestimate goes wrong on Puyallup homes

An automated value works from public records and nearby sales. That approach has specific blind spots here.

  • Mixed housing stock. A 1950s rambler near downtown and a 2015 two-story on South Hill can sit a couple of miles apart. An algorithm that leans on distance will blend them.
  • Views. A clear Mount Rainier view is one of the strongest value drivers in the South Sound. Public records do not have a field for it.
  • Condition. The county record does not know you replaced the roof, or that the furnace is on borrowed time.
  • Unpermitted or unrecorded space. A finished bonus room that never made it into the county's square footage will be undercounted.
  • Wrong facts. If the county has your bedroom count or square footage wrong, every estimate built on it is wrong too.

How to make your Zestimate less wrong

You can improve it. Claim your home on Zillow and correct the facts: bedrooms, bathrooms, finished square footage, and major updates. It will not fix the blind spots above, but it removes the easy errors.

While you are at it, check the same facts in the county's record. The Pierce County parcel search shows what the Assessor-Treasurer has on file for your home.

Zestimate, assessed value, appraisal, and a broker's analysis

Number Who makes it Seen the inside? Good for
Zestimate Algorithm No A rough starting point
County assessed value Assessor, by mass appraisal Rarely Your property tax bill
Appraisal Licensed appraiser Yes A lender's loan decision
Comparative market analysis A local broker Yes Choosing a list price

None of these is a guarantee. The only number that settles it is what a buyer writes on an offer.

How I would use it

Use the Zestimate to watch the trend. If it has climbed or slipped over a year, that direction is usually right. Do not use it to set a price, pick a refinance amount, or decide whether you can afford the next house.

Frequently asked questions

How accurate is a Zestimate?

Zillow's published nationwide median error was about 1.94% for homes listed for sale and about 7.06% for homes not on the market, as of March 2025.

Why is my Zestimate so different from what homes are selling for?

The estimate cannot see condition, updates, views, or errors in the public record. Puyallup's mix of older valley homes and newer South Hill neighborhoods also makes automated comparisons less reliable.

Can I change my Zestimate?

You can claim your home on Zillow and correct its facts, such as bedrooms, bathrooms, and square footage. The estimate may adjust after you do.

Is a Zestimate the same as an appraisal?

No. A Zestimate is an automated estimate. An appraisal is done by a licensed appraiser who inspects the home, usually for a lender.

Related reading

Want a number built from your actual house? Reach out.

An algorithm has never been inside your home. I have been inside a lot of homes like it. Call, text, or email me and I will walk you through what yours would sell for and why.

Austin Robertson
Real Estate Broker, Robertson & Co.
253.225.2395 | austin@robertsonand.co

For people building something worth keeping.

About Austin Robertson | Founder, Robertson & Co. Real Estate

Austin Robertson is a Washington real estate professional and the founder of Robertson & Co. Real Estate. He helps families buy and sell homes throughout Bonney Lake, Tehaleh, Puyallup, Tacoma, Gig Harbor, and the greater Seattle region, with a focus on move-up buyers, relocation, and helping homeowners build long-term wealth through real estate.

Austin Robertson and Allena Robertson Real Estate Brokers

Equal Housing Opportunity. Austin Robertson, License # 21036843, Austin Robertson and Allena Robertson Real Estate Brokers, regulated by the Washington State Department of Licensing (DOL). This article is general information only. It is not legal, tax, insurance, lending, or construction advice, and it is not an appraisal of any property. Costs, rates, and rules change. Confirm the details with the sources linked above before you act.

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