Sumner WA Cost of Living: How It Compares to Tacoma and Seattle

Sumner WA cost of living is lower than Seattle's on almost every line that matters to a buyer, and a little higher than Tacoma's on most of them. That second half surprises people. When buyers tell me they are looking at Sumner to save money, I ask which city they are leaving. Coming from Seattle, the savings on a house are large. Coming from Tacoma, Sumner usually costs more, and the reasons to choose it are the small-town core, the Sounder station and a lower sales tax rather than a cheaper house.

This guide puts Sumner, Tacoma and Seattle side by side using public numbers I pulled at the source on November 10, 2026: Redfin sales data for the three months ending September 2026, Zillow's home value and rent indexes for September 2026, the Census Bureau's 2020-2024 American Community Survey, the Washington Department of Revenue's fourth-quarter 2026 tax rates and the City of Sumner's 2026 utility rate ordinance.

Sumner WA Cost of Living Starts With the House

Housing is the biggest line in any move, so start there. Redfin's Sumner market page shows a median sale of $549,738 over the three months ending September 2026, essentially flat from a year earlier. Tacoma came in at $499,837 and Seattle at $854,593.

Per square foot, the Seattle gap is about $203. On an 1,800-square-foot house that is roughly $365,000 at the median rates, which is the single biggest reason buyers leave Seattle for the south Pierce County valley. The Tacoma comparison runs the other way: Sumner sold for about $24 more per square foot, or about $43,000 more on the same 1,800 square feet.

Two cautions about these figures. Sumner is a small market, with 31 sales in September against 653 in Tacoma, so its medians move more from month to month. The 13.4% drop in Sumner's price per square foot reflects which homes happened to sell, not a 13% drop in what any one house is worth. Zillow's smoothed index, which tracks the typical home rather than the homes that sold, shows Sumner up about 0.5% over the year. For a neighborhood breakdown, see my guide to Sumner home prices by neighborhood.

Renting in Sumner Costs About What Seattle Does

Renters get a different answer. Zillow's Observed Rent Index put typical rent at about $2,219 in Sumner in September 2026, up 3.5% from a year earlier. Seattle was about $2,227, up 0.5%. Tacoma was about $1,773, up 2.1%. The Census survey shows the same order, with median gross rent of $1,974 in Sumner, $2,030 in Seattle and $1,676 in Tacoma.

Sumner rents are not high because a Sumner apartment is worth a Seattle apartment. They reflect a small, older rental supply: about 39% of Sumner's rented homes are detached houses or townhomes, and the Census survey counts no rented homes built since 2020. If you plan to rent while you look, Tacoma gives you more choices for less. My guide to what Sumner homes rent for breaks rents down by bedroom count.

Property Taxes in the Sumner WA Cost of Living

Property taxes are where Sumner gives a little back to the larger cities. The 2020-2024 American Community Survey puts the median annual real estate tax paid at $5,213 in Sumner, against $4,482 in Tacoma and $7,337 in Seattle. Measured against each city's median home value in the same survey, that is about 1.0% in Sumner, 0.93% in Tacoma and 0.78% in Seattle.

So a Sumner buyer pays less tax in dollars than a Seattle buyer, but more per dollar of home value. The City of Sumner's tax page says the city's own share is about 7.6% of a typical property tax bill; most of the rest goes to the state school levy, the local school district, the county and other districts. These are medians across thousands of homes. Your bill depends on the parcel's assessed value and tax code area, so read the actual tax statement on the Pierce County Assessor-Treasurer's site before you write an offer.

Sales Tax: Where the Sumner WA Cost of Living Wins

Sales tax is the clearest place Sumner costs less than either larger city. I ran city addresses through the Department of Revenue's rate lookup for the fourth quarter of 2026.

The gap is real but modest: about $80 to $85 a year on every $10,000 of taxable spending, and a few hundred dollars on a car. Part of the difference is transit. In the state's rate record, Tacoma and Seattle addresses sit inside a local transit benefit area that adds sales tax, and Sumner does not. All three are inside the Sound Transit district, so the regional transit car tab tax applies in each. Sumner's own page notes a 0.1% Transportation Benefit District tax that began in 2026 and can only fund road projects.

One trap: a 98390 ZIP code does not mean a home is inside Sumner. Some 98390 addresses are in unincorporated Pierce County, which changes the sales tax, who issues permits and what you pay for city water and sewer.

City Utilities and the Sumner WA Cost of Living

Homes inside the city get water, sewer and stormwater on one bill. The city's 2026 utility rates under Ordinance No. 2947 list these single-family charges, taxes included:

• Water: $30.72 a month base for a 3/4-inch meter, plus $2.28 per 100 cubic feet for the first 500, $3.42 per 100 from 500 to 1,600 and $4.55 above that.
• Sewer: $72.27 a month for a single-family home, which includes 500 cubic feet, plus $10.64 per 100 cubic feet above that, set from your winter water use.
• Stormwater: $20.43 a month per 3,100 square feet of hard surface.

By my reading of that table, a home with a standard meter using 600 cubic feet a month comes to roughly $149 before garbage, which Murrey's Disposal bills separately. That is close to the $142 sample bill on Puyallup's 2026 rate sheet that I used in my Graham cost of living comparison. Two details matter to buyers. Homes outside city limits on city service pay a 15% water surcharge and a 25% sewer surcharge. And owners who qualify for Pierce County's senior or disability property tax exemption get 25% off the water, sewer and stormwater base fees automatically, per the city's discount program notice.

The Commute: Sounder Helps, the Drive Does Not

The commute is where a Sumner move can cost you time. Census commute data for 2020-2024 shows about 14% of Sumner workers spend an hour or more each way, against about 12% in Tacoma and about 6% in Seattle. Only about 13% of Sumner workers work from home, against about 35% in Seattle.

The other side of the ledger is short trips. About 21% of Sumner workers get to work in under 15 minutes, about the same share as Seattle, because the valley around Sumner has a large base of distribution and warehouse employers. For Seattle commuters, Sounder's S Line runs from Sumner Station to King Street Station in about 44 minutes northbound, and ST Express 578 also stops at the station. Parking is in transition: Sound Transit closed the station's Narrow Street surface lot on October 14, 2026, while it builds a garage on Harrison Street. My Bonney Lake commuter guide covers the station and connections in detail.

Sumner WA Cost of Living: Who Comes Out Ahead?

Put the lines together and a pattern shows. Sumner tends to come out ahead for buyers leaving Seattle who want a house rather than a condo, can live with a Sounder commute or work locally, and want a walkable downtown in a small city. It also suits buyers who spend a lot on taxable purchases. Tacoma tends to come out ahead on price, rent and property tax, and it offers far more homes to choose from at any given time.

Household income in the Census survey follows the same order: $123,860 in Seattle, $98,191 in Sumner and $85,884 in Tacoma. That figure describes who lives in each city now, not what anyone needs to earn to move there. For more on daily life in town, read my Sumner neighborhood guide.

Run the Numbers on a Specific Sumner Home

The Sumner WA cost of living comes down to the address. A home on the valley floor and one on the hill can differ on flood insurance, utility surcharges and tax code area, so I compare specific properties, not averages. The Pierce County hub lists every Sumner guide I have written.