Why No Two Websites Agree on Sedro-Woolley's Median Home Price

A buyer preparing to write an offer on a house near downtown Sedro-Woolley did what most people do the night before: opened four tabs to sanity-check the price. Redfin said the median home price was $525,000, down more than 5 percent from a year earlier. Zillow's estimate landed at $439,703. Movoto showed $591,475. Orchard put it at $585,000, up nearly 5 percent. Four sites, checked within minutes of each other, describing what should be one market.

None of those numbers is wrong. That is the part that trips people up. Each site is answering a slightly different question, and in a town the size of Sedro-Woolley, those small differences in the question produce big differences in the answer. If you are comparing this city to Mount Vernon or Bellingham as part of a move, understanding why the numbers scatter matters more than memorizing any single one of them, because the number you land on will shape what you offer, what you list at, and how confident you feel doing either.

The same city, five different stories

Here is what each source was actually reporting, and over what window:

Look closely at Redfin and Homes.com. They arrive at the identical $525,000 figure and then disagree about which direction the market is moving, one says down 5.4 percent, the other says up 5 percent. That is not a typo on either site. It is what happens when two organizations calculate a real, honest median from two different stretches of time and call both of them "current."

Three reasons the number keeps moving

Once you separate the sources, the disagreement breaks into three distinct causes, and each one matters differently depending on whether you're buying or selling.

• The time window changes what counts as "now." Redfin's figure covers a rolling three months that ended in April. Orchard's covers the trailing 30 days, closer to May. Homes.com stretches back a full year. By August, all three are describing a market that has already moved on, just by different amounts.
• The definition changes what's being measured. Zillow's Home Value Index is a modeled estimate designed to smooth out swings, which is exactly why it sits so far below the others. Redfin, Orchard, Movoto, and Homes.com are reporting an actual median of closed transactions, which reacts immediately to whatever happened to sell that month.
• The geography changes the pool of homes. Redfin counted 35 to 36 closed sales in Sedro-Woolley in April 2026. Orchard counted 13 sales in its most recent 30-day window, likely limited to the 98284 zip code. Movoto counted 107 sales in May. That is roughly an eightfold difference in sample size covering roughly the same stretch of calendar, which only makes sense if the sites are drawing their "Sedro-Woolley" boundary differently, some tighter to city limits, some pulling in more of the surrounding unincorporated county.

That third point is the one worth sitting with. When a market is genuinely small, a boundary drawn a few blocks wider or narrower changes the sample enough to move the median by tens of thousands of dollars, without anything about the actual houses changing at all.

Why a thin market swings so hard

Sedro-Woolley is not a large enough market to average its way out of a rough month. When roughly a dozen to a few dozen homes close in a given window, one $900,000 farmhouse sale or one distressed sale under $300,000 can shift the reported median by five or ten percent on its own. Compare that to a market moving hundreds of closings a month, where a single unusual sale barely registers. In a market this size, the median is less a stable measurement and more a monthly snapshot that happens to include whatever sold.

That volatility shows up in more than price. Reported days on market for Sedro-Woolley ranged from a 6-day median (Orchard) to a 52-day average (Homes.com) across the same general period, another sign that small differences in sample and method compound into numbers that look contradictory but are each internally consistent.

What's actually driving demand underneath the noise

If the headline price is this noisy, the more useful question is what is happening to real demand, and Sedro-Woolley has a genuine, named answer sitting inside city limits: Janicki Industries.

Janicki is an aerospace and composites manufacturer headquartered in Sedro-Woolley, building tooling, parts, and assemblies for aerospace, defense, and marine customers. According to workforce data tracked by Revelio Labs, the company's headcount grew from 909 employees in 2023 to 1,255 as of March 2026, a gain of roughly 38 percent in three years, with active job postings up more than 90 percent in 2026 to 175 open roles and new postings averaging around 80 a month. That is sustained, local hiring in a city of Sedro-Woolley's size, and it is the kind of steady demand pressure that a single month's median price swing can completely obscure.

The Economic Development Alliance of Skagit County frames the city's trajectory the same way, describing Sedro-Woolley's shift from a timber-industry town into one anchored by Janicki along with the developing Sedro-Woolley Innovation for Tomorrow (SWIFT) Center and the nation's first Job Corps technical academy. None of that shows up in a Zestimate. All of it shows up, eventually, in who is looking for a house here and why.

The same pattern, one town south

If this looked like a Sedro-Woolley quirk, it would be less useful to know. It isn't. Mount Vernon shows the identical pattern. Zillow's Home Value Index put the typical Mount Vernon home at $590,838 as of April 2026, up 1.8 percent for the year. A separate Skagit-focused market report pulling directly from Northwest Multiple Listing Service closed-sale records put Mount Vernon's median at $649,950 as of July 2026, a gap of roughly $59,000, or about 10 percent, between a smoothed estimate and an actual median of recorded closings in the same general window.

The gap between what a portal estimates and what a house actually closed for isn't a glitch. It's the difference between a model and a transaction.

Smaller Skagit County cities produce this spread as a matter of course. It is not evidence that one site has bad data. It is evidence that "median home price" means five different things depending on who's calculating it and when.

What this means if you're comparing neighborhoods right now

If you're weighing Sedro-Woolley against Mount Vernon or Bellingham as part of a move, treat any single portal number as a starting estimate, not a verdict. The more durable signals are the ones less sensitive to a thin sample: Orchard's data on Sedro-Woolley, for instance, showed 38.46 percent of homes selling above list price in its most recent 30-day window, up 12.4 percentage points from a year earlier. That kind of percentage-based measure moves less erratically than a raw dollar median built on 13 to 36 sales, because it's describing behavior across the whole pool rather than being dragged by one or two outlier closings.

The other reliable move is simpler: ask for actual closed comparables from the last 60 to 90 days for homes genuinely similar to the one you're buying or selling, pulled directly from NWMLS, the shared listing system nearly every Washington broker draws from. That comparison will tell you more about what a specific house is worth than any citywide median ever will, regardless of which site published it.

A few questions worth answering directly

Which number should I actually trust when I'm pricing an offer or a listing? None of the public figures alone. Use them as a rough range, then ask for the specific closed comparables for homes like yours from the last two to three months. That comparison, not a citywide median, is what should set your number.

Does this mean Sedro-Woolley prices are actually falling? It depends entirely on which measure and time window you pick, which is the whole point. What looks more durable is the demand side: the share of homes selling above list price trending up and a major local employer still hiring steadily, both of which suggest underlying interest hasn't cooled even where a particular month's median dipped.

Is Sedro-Woolley's data just messier than everywhere else? No. Mount Vernon shows a comparable gap between its smoothed estimate and its MLS-sourced median. This is a feature of smaller markets generally, not a flaw unique to one city's numbers.

If you're trying to make sense of what a house in Sedro-Woolley, Mount Vernon, or anywhere else in Skagit or Whatcom County is actually worth right now, the fastest way through the noise is a conversation with someone pulling real comparables instead of another tab. Christine Rasmussen has spent years working these markets block by block, not just headline by headline. Let's Connect and get a number you can actually build an offer or a listing price around.