Summit County vs Washington County.

Home values

The price gap here is the widest you will find on this site. Summit County's median home value is ~$1,067,700, the highest of any county in the state, against ~$510,700 in Washington, and the two counties sit at opposite ends of every market measure. Summit carries the state's highest household income, ~$138,100, against ~$80,600 in Washington, and the difference is not a gap so much as two different economies, a resort mountain valley on one end and a fast-growing desert metro on the other.

In Summit the money is concentrated in Park City, the largest town and one of the great resort real-estate markets in the West, where the price pages start above what most Utah counties top out at, Park City under $1.5M and Park City under $2M. Down the valley Kamas is the relative bargain of the county, still high by any other Utah measure but the place where a buyer trades Park City's address for the same mountains at a lower number, with Kamas under $1M and Kamas under $1.25M. The seat, Coalville, sits on I-80 and carries a ranching-town price that has nothing in common with the resort a few miles up the road.

In Washington the money spreads out across a much bigger county. St. George is the seat, the largest city, and the most expensive address in the county, and the price pages step down from there, St. George under $500K, St. George under $600K, and St. George under $700K. The surrounding towns, Washington, Hurricane, Ivins, and Santa Clara, are where a budget goes farther, with Hurricane under $450K and Washington under $450K showing what the lower tiers actually buy.

The practical version, for the same monthly budget: in Summit you are buying altitude, snow, and an address, and the house is the smaller part of the price; in Washington you are buying a home and a warm winter, and the house is the whole point. If you are early in the search, the cost-of-living guide lays the whole state out by region, and the affordability calculator turns either county's median into a number you can actually shop with.

Taxes, county by county

Now the part people get wrong, and here it is upside down from what you would guess. Summit, the expensive county, carries the lower property tax, ~0.4% effective on a primary home in Coalville, against ~0.5% effective on a primary home in St. George. Utah taxes a primary residence on part of its value, and the certified rate that lands on your bill is set by the city and the school district, not the county, so a resort bond or a new desert school can move one address while the county line means nothing.

Sales tax runs the other way, with the resort county higher. The combined rate at the register is ~7.65% in Summit against ~6.75% in Washington, because the resort towns layer on transit and tourism levies on top of the state base. Check the exact rate for any address on the county assessor's site before you commit. The honest takeaway is the same as it always is: do not pick between these two counties on taxes, because neither is going to move your decision.

The trade behind the price

What the Summit price buys is altitude and the resort itself. You are paying for the Wasatch Back, for two of the biggest ski resorts in the country, for a winter that is the point of the place, and for a mountain town with a real economy rather than a second-home shell. The county's private land, 54% private, is mostly spoken for, which is why the prices hold. What it does not buy is a short winter or a low payment; the altitude is the whole product.

What the Washington price buys is the warm winter and the red rock. The same money that buys a modest place in Kamas buys a larger, newer home in St. George or Hurricane, with Zion National Park out the back gate and a summer that is real desert heat. Washington is 18% private inside a county that is 75% federal, so the building ground is scarce against the demand, which is exactly why one of the fastest-growing counties in the state still costs so much less than the resort county. The demand side is real and it is not a one-season story: the hospital, the airline, the university, and a run of national-park traffic keep the place working year-round, not just in season. If a newer home is the priority, look at new construction in St. George on the desert side and Park City's new construction on the mountain side, and compare what the budget covers.

Elevation and seasons

These two counties are the farthest apart in Utah on weather, and the table shows why before you read a word. Coalville sits at ~5,600 ft, mountain valley with a climate of long snowy winters and cool mild summers, a July high near ~86 °F and a January low around ~11 °F. St. George sits at ~2,860 ft, low desert with hot summers and mild winters, a July high of ~102 °F and a January low near ~30 °F. The two seats sit at opposite ends of the state's elevation ladder, and that altitude is the whole difference. It is also why a single storm can drop a foot of snow on one seat and a warm rain on the other, in the same afternoon.

Summit's winter is the point of the place. Snow starts early on the high ground and holds for months, the resorts run on it, and the January low of ~11 °F means the valley floor itself stays cold through the dark stretch, which is exactly why Park City Mountain versus Deer Valley matters more than the county tax rate up here. The summer is the payoff, cool and mild with a July high around ~86 °F, which is why the resort town fills with mountain bikers and hikers the moment the snow melts. Washington's winter is the opposite draw. Winter in St. George is short, mild, and mostly dry, with a January low near ~30 °F, and it is the reason a golf bag sees more use here than a snow shovel. The summer is the cost, real desert heat with a July high of ~102 °F, and summer in Hurricane tells it straight.

Water, air, and the valley floor

Water is where Summit clearly has the deeper well. The Wasatch Back is snow-fed country, the Weber and the Provo both rise up here, and the Uinta lakes and the Mirror Lake Highway country sit right out the back door, so the whole county drinks, paddles, and fishes off mountain runoff. Washington is the low desert, and water is the county's one real anxiety: the Virgin River and the aquifers under the red rock are finite, the reservoirs in Sand Hollow and Quail Creek are a measured resource, and the county watches its supply the way Summit watches the snowpack. It is the quietest difference between the two, and the one that matters most over a decade.

On air, the two counties fail in opposite seasons. Summit gets the Wasatch Front's winter inversion too, the cold lid that sits on the valley floor for days in December and January, though the high bench around Park City climbs above it more often than the flats of Coalville do. Washington's air problem is the opposite: summer ozone and windblown dust off the dry lakebeds and the red-rock bench, with the heat holding it all in place. Neither county has clean air in its worst season; they just take their bad weeks at opposite ends of the year. What they share is the western wildfire season, when smoke from a fire anywhere in the region sits over both counties until the wind moves it, a summer worry in the desert and a fall one in the mountains.

Public land and the map

Now the biggest difference on the map, and it hides in the land rows of the table. Summit is 54% private and 44% federal, a county that is mostly private valley and ranch ground with the Uinta and Wasatch forest closing it in on the high edges. Washington is the public-land county of the two, 75% federal and only 18% private, which is the signature of southern Utah: the land is mostly federal, the building ground is a small private share of it, and the red rock is not for sale.

What all of it means for you is simple. Summit's outdoors is the mountain itself, the ski resorts, the Uinta lakes, and a winter you either want or you do not. Washington's is the red rock, Zion out the back gate, Snow Canyon, and the reservoirs, with a winter you can play golf through. If the snow is why you are moving to Utah, that is Summit. If the warm winter and the desert are, that is Washington, and the summer heat is the price of it.

School districts

Summit runs three school districts, Park City, North Summit, South Summit, one wrapped around Park City and two covering the valley and the east county, which means a small county split three ways. Washington runs one, Washington County School District, a single system for the whole fast-growing county. I do not rate schools, on this page or anywhere on the site. I name the district, link the city guide, and leave the judgment to you and the district's own published data. The city guides for Park City and St. George tell you which district an address falls in.

Colleges and universities

Higher education is the clearest split on the page. Summit has no campus of its own; the nearest university is the University of Utah, down Parley's Canyon on the Salt Lake side, which is how a mountain county with the state's highest incomes still has no college town of its own. Washington has a full university, Utah Tech University in St. George, plus Dixie Technical College, and together they shape the middle of the county, its jobs, its events, and its rental market, the way the ski resorts shape Summit's. For a buyer that shows up two ways: a Summit address puts the nearest campus down the canyon, while a St. George address keeps the campus in town, and the desert county's rental market carries a college edge that Summit's does not.

Hospitals and the airport

On hospitals the two are set up exactly the way their populations are. Summit has a single hospital, Park City Hospital, an Intermountain facility up at the resort, and for anything beyond routine care the county leans down the canyon on the Salt Lake medical centers. Washington has the regional center for the whole southwest, St. George Regional Hospital, the Intermountain flagship for southern Utah, so routine and emergency care is close everywhere in the county and a big share of the region's care comes to St. George. That gap matters more in Summit than it does in most mountain counties, because the nearest trauma center is a pass drive away rather than a few blocks, and on a storm night the pass is part of the equation.

The airport splits the way the map does. Summit has none of its own; Salt Lake City International is the nearest hub, ~50 min from Coalville, over the summit. Washington has its own airport, St. George Regional with commercial service, so a household can fly from close by, and for the routes that need a hub the drive to Salt Lake is ~4.5 hr from St. George. Frequent flyers should weigh that; it is one of the quiet reasons Washington holds a share of buyers who would otherwise be in the mountains.