Every time I sit down with a homeowner in Western North Dakota who is thinking about selling, we inevitably end up juggling three numbers:
The county assessed value: This is a tax figure that usually runs low and lags behind the actual market by years.
The Zestimate: Zillow's automated guess that, let's be honest, most of us want to treat as gospel.
The actual market value: What a qualified buyer will actually pay you today based on real comparable sales, local inventory, and current demand.
Here in the Bakken, the truth almost always lives somewhere between the assessed value and the Zestimate. And that gap? It matters a lot more than most sellers realize.
Even Zillow Doesn't Trust the Zestimate
This isn't just my opinion—Zillow proved it themselves. Between 2019 and 2021, Zillow ran an iBuying program called Zillow Offers, where they bought homes directly from sellers using prices generated by their own algorithm. By late 2021, they had accumulated thousands of homes at inflated prices the market simply wouldn't support.
The result? Zillow took a write-down of over $500 million and shut the entire program down.
Their own CEO admitted the algorithm couldn't accurately predict home prices even 90 days out. In massive, predictable markets with thousands of identical homes, their model does an okay job. But in cyclical, highly specific markets like the Bakken? It overestimates. Consistently.
A Real Example Right Here in Williston
Let's look at exactly how this plays out on the ground.
Take a home at 2304 27th Ave W in Williston, purchased for $305,000 five years ago. Based on current, real-world market conditions across the Bakken, a realistic market value today is right around $380,000. That reflects genuine, healthy appreciation driven by our local energy economy and inventory constraints.
Zillow’s current Zestimate on that exact same property? $457,100.
That is a $77,000 gap between fantasy and reality. If a seller lists at $457,000 expecting the Zestimate to hold up, that house is going to sit. Days on the market will pile up. Price reductions will follow. Eventually, the home gets stigmatized—buyers start wondering, "What's wrong with it?"—and it will likely sell for far less than if it had just been priced correctly from day one.
Why the Bakken Breaks the Algorithm
Zillow’s model relies on sheer volume. It needs a massive, dense dataset of recent, identical sales to constantly correct itself. Western North Dakota is just too distinct and too cyclical for a national algorithm to understand.
Our housing demand moves on energy activity. Algorithms don't track:
Rig counts and completion rates
Workforce deployment shifts
Operator capital spending
The difference in build quality based on the era homes were constructed. Properties built during the boom and before building inspectors are a lot different than new builds. Not saying there isn't a huge difference between modern day GCs and their quality, but ultimately buyers control what inventory trades at and its hard for an algorithm to differentiate.
The reality that 16 active listings in Watford City is completely different than 16 listings in a Minneapolis suburb
When activity ramps up here, inventory tightens and prices firm up. When it pulls back, values soften. To a national computer model, this looks irrational. To those of us who have been closing deals in this market for years, it makes perfect sense. Zillow generates a number that looks impressively precise, but is actually wrong by tens of thousands of dollars.
The Three-Number Playbook for Western ND Sellers
If you're gearing up to sell, this is the only framework you need:
Ignore the tax assessment: It’s almost always the floor. Do not price from it.
Ignore the Zestimate: It’s a national algorithm running wild in a hyper-local market. Do not price from it either. More than likely its too high.
Find the true market value: Look at what comparable homes in your specific neighborhood have actually closed for in the last 90 to 180 days, adjusted for your home's unique condition and current buyer demand.
Right now, the underlying trend favors sellers, but only sellers who are priced correctly. Look at the data:
Williston: Sitting at a $515,000 median list price with a Market Action Index of 42 (and climbing).
Watford City: Sitting at $492,000 with only 16 active listings.
Dickinson: Sitting at $360,000 with strengthening demand.
Sellers who price to a Zestimate in this market are leaving their listing entirely exposed.
Why Local Expertise Wins Every Time
An accurate price in Western North Dakota isn't generated by a robot. It’s produced by a broker who is in the trenches of this market every single day, looking at real comps and anticipating where demand is heading before the national tools catch up.
With over 1,600 closed transactions, representing more than $400 million in volume across Western North Dakota, our data at Proven Realty completely outclasses any algorithm. We’ve navigated every cycle the Bakken has thrown at us since 2015.
If you're thinking about selling and you've been staring at your Zestimate, it's time we have a conversation about what your home is actually worth in today's market. Chances are, those two numbers aren't the same.
Ready for the truth about your home's value? Proven Realty is the #1 eXp team in North Dakota, recognized by RealTrends and named Best of the Bakken 2023-2025. Founder and Broker Erik Peterson has negotiated over $400M in local transactions. Get your accurate, current market valuation today at ProvenRealtyND.com.
