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Cost of Living: Seattle, WA vs Kennewick, WA

Wondering how far your dollar stretches in Seattle compared to Kennewick? Below we break down housing costs, rent, taxes, income, and quality of life using 2026 data so you can make an informed relocation or remote-work decision. Every number is computed from Census, BLS, and Zillow data specific to these two metro areas.

TL;DR

Seattle cost-of-living index is 156 vs 98 for Kennewick (US = 100). Median home: $780,000 vs $325,000. Median rent: $1,800/mo vs $1,200/mo.

Source: Census ACS · Zillow ZHVI/ZORI · BEA RPP, 2026

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Kennewick is 37.2% cheaper than Seattle
COL Index: Seattle 156 vs Kennewick 98 (national avg = 100)
Written by Jere Salmisto, Founder & Quantitative Systems Builder, CalcFi·Reviewed by CalcFi Editorial·Last reviewed 2026-04-19

Seattle vs Kennewick — At a Glance

SeattleMetricKennewickDifference
156Cost of Living Index98-37.2%
$780,000Median Home Price$325,000-58.3%
$1,800Median Monthly Rent$1,200-33.3%
$102,900Median Household Income$66,400-35.5%
0.9%Property Tax Rate0.9%+0.0%
3.4%Unemployment Rate4.6%+35.3%
30 minAverage Commute21 min-30.0%
36.5Median Age34-6.8%
4,100,000Metro Population310,000-92.4%

Data sourced from Census Bureau, BLS, Zillow, and ApartmentAdvisor (2024-2025). COL Index: 100 = national average.

Housing Comparison: Seattle vs Kennewick

Monthly mortgage assumes 6.5% interest, 30-year fixed, 20.0%down payment. PITI includes principal, interest, property tax, and homeowner's insurance.

Seattle

Median Home Price$780,000
Down Payment (20.0%)$156,000
Loan Amount$624,000
Principal & Interest$3,944/mo
Property Tax$598/mo
Insurance$228/mo
Monthly PITI$4,770/mo

Kennewick

Median Home Price$325,000
Down Payment (20.0%)$65,000
Loan Amount$260,000
Principal & Interest$1,643/mo
Property Tax$249/mo
Insurance$95/mo
Monthly PITI$1,987/mo

Rent & Affordability Ratios

Median Monthly Rent$1,800 vs $1,200 (-$600/mo)
Annual Rent Difference$7,200/yr more in Seattle
Home Price-to-Income Ratio7.6x (Seattle) vs 4.9x (Kennewick)
Years to Save 20% Down (15% savings rate)10.1 yrs (Seattle) vs 6.5 yrs (Kennewick)

Buying a home in Seattle costs $4,770/month (PITI) compared to $1,987/month in Kennewick — a difference of $2,783/month or $33,396/year. The price-to-income ratio is 7.6x in Seattle versus 4.9x in Kennewick, suggesting Kennewick is relatively more affordable for homebuyers relative to local incomes. At a 15% savings rate, it takes 10.1 years to save a down payment in Seattle compared to 6.5 years in Kennewick.

Tax Comparison: Seattle vs Kennewick

Estimated on each city's median household income, single filer, standard deduction, 2025 rates.

Tax CategorySeattleKennewick
Gross Income$102,900$66,400
State Income TaxNoneNone
Federal Income Tax$14,087$6,057
FICA (SS + Medicare)$7,872$5,080
Property Tax (on median home)$7,176/yr$2,990/yr
State Sales Tax Rate6.5%6.5%
Total Tax Burden$21,959 (21.3%)$11,137 (16.8%)
Take-Home Pay$80,941$55,263

Washington has no state income tax, giving Seattle residents a significant tax advantage. On median household income, total taxes (federal + state + FICA) come to $21,959 in Seattle (21.3% effective) versus $11,137 in Kennewick (16.8% effective). After taxes, take-home pay is $80,941 in Seattle and $55,263 in Kennewick. Property taxes add $7,176/year on the median Seattle home versus $2,990/year in Kennewick.

Salary Equivalence: What Your Income Is Worth

A $102,900 salary in Seattle equals
$64,642
in Kennewick
A $66,400 salary in Kennewick equals
$105,698
in Seattle

These figures adjust for cost of living using the formula: adjusted = salary × (COL_destination / COL_origin). If you earn $102,900 in Seattle (COL 156) and relocate to Kennewick (COL 98), you would need $64,642 to maintain the same purchasing power. This means you can take a pay cut of $38,258 and still maintain your lifestyle in Kennewick.

Quality of Life: Seattle vs Kennewick

Average Commute
30 min
Seattle
21 min
Kennewick
9 min longer in Seattle
Unemployment Rate
3.4%
Seattle
4.6%
Kennewick
Seattle lower
Metro Population
4.1M
Seattle
0.3M
Kennewick
Seattle is 13.2x larger

Beyond costs, quality of life matters. The average commute in Seattle is 30 minutes versus 21 minutes in Kennewick, a difference of 9 minutes each way. Seattle's lower unemployment rate of 3.4% versus 4.6% suggests a stronger job market. Seattle skews slightly older with a median age of 36.5 vs 34 in Kennewick.

Other Cost of Living Comparisons

New York vs SeattleCOL 187 vs 156Los Angeles vs SeattleCOL 173 vs 156Chicago vs SeattleCOL 114 vs 156Kennewick vs New YorkCOL 98 vs 187Kennewick vs Los AngelesCOL 98 vs 173Chicago vs KennewickCOL 114 vs 98

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Frequently Asked Questions

Is Seattle or Kennewick more expensive?

Seattle is 37.2% more expensive than Kennewick overall. Seattle has a cost of living index of 156 compared to 98 for Kennewick (national average = 100). The biggest difference is housing: the median home costs $780,000 in Seattle vs $325,000 in Kennewick.

How much more does housing cost in Seattle vs Kennewick?

The median home price in Seattle is $780,000, which is $455,000 more than Kennewick's median of $325,000. Monthly rent follows a similar pattern: $1,800/month in Seattle vs $1,200/month in Kennewick, a difference of $600/month or $7,200/year.

What salary do I need in Kennewick to match my Seattle income?

To maintain the same standard of living, a $102,900 salary in Seattle is equivalent to $64,642 in Kennewick. This is based on the cost of living index ratio: Seattle's COL index of 156 vs Kennewick's 98. Conversely, $66,400 in Kennewick equals $105,698 in Seattle.

Which city has lower taxes, Seattle or Kennewick?

On a median household income, the combined federal, state, and FICA tax burden is $21,959 (21.3% effective rate) in Seattle vs $11,137 (16.8% effective rate) in Kennewick. Property taxes on the median home are $7,176/year in Seattle (0.9% rate) vs $2,990/year in Kennewick (0.9% rate). Sales tax rates are 6.5% in Washington and 6.5% in Washington.

What is the median household income in Seattle and Kennewick?

Seattle median household income: $102,900/yr. Kennewick median household income: $66,400/yr (Census ACS).

How does rent compare in Seattle vs Kennewick?

Median monthly rent: $1,800 in Seattle vs $1,200 in Kennewick. Annualized that is $21,600 vs $14,400.

Which city is better for remote workers, Seattle or Kennewick?

Kennewick offers a lower cost of living (index 98 vs 156), which lets remote-workers keeping a coastal salary stretch further. Seattle typically wins on amenities and labor-market depth.

Where does the data on this comparison come from?

Seattle and Kennewick numbers are pulled from Zillow ZHVI/ZORI (home values, rent), the U.S. Census Bureau ACS (income, demographics), and BEA RPP (cost-of-living index). Each value is timestamped on the page.

How often is this Seattle vs Kennewick comparison updated?

Source feeds (Zillow, Freddie Mac PMMS, Census ACS, BEA RPP) are refreshed on their native cadence. Page caches revalidate every 24 hours via Next.js ISR.

Does this comparison replace tax or financial advice?

No. The Seattle vs Kennewick cost-of-living page is educational reference using public data and standard formulas. It is not personalized tax, legal, or investment advice. Consult a licensed professional for material decisions.

Explore More

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Sources & Citations

  1. Zillow Research — ZHVI (home values) & ZORI (observed rent index) — zillow.com/research/data
  2. U.S. Census Bureau — American Community Survey (ACS) 5-year estimates — census.gov/acs
  3. Bureau of Economic Analysis — Regional Price Parities by state and MSA — bea.gov/rpp
  4. Tax Foundation — effective state and local tax rates — taxfoundation.org
  5. Freddie Mac PMMS — weekly national average mortgage rates — freddiemac.com/pmms
  6. Internal Revenue Service — federal income tax brackets and standard deduction — irs.gov
  7. U.S. Bureau of Labor Statistics — unemployment and wage statistics — bls.gov
Methodology & Assumptions

Home prices use Zillow Home Value Index (ZHVI)[1]; rents use Zillow Observed Rent Index (ZORI)[1]. Median household income comes from the Census ACS 5-year estimates[2].

COL indices use the BEA Regional Price Parity methodology[3], normalized so 100 = national average.

Property tax rates are effective rates from the Tax Foundation[4], expressed as % of owner-occupied home value. Mortgage estimates assume 6.5% fixed rate[5], 30-year term, 20.0% down, $1,800/yr homeowners insurance.

Federal tax calculations[6] assume single filer, standard deduction. State tax uses the top marginal rate times taxable income after the state standard deduction. FICA = 6.2% Social Security (up to wage base) + 1.45% Medicare.

Salary equivalence uses adjusted = salary × (COL_destination / COL_origin). This captures cost-of-living shift but not state income tax differences.

Unemployment figures are the most recent monthly MSA-level readings from the BLS LAUS series[7].

Last reviewed is computed from the maximum retrievedAt across every source this page consumes.

City data from Census Bureau[2], BLS[7], and Zillow[1] (2024-2025). Tax calculations use 2025 IRS rates[6], single filer, standard deduction. Mortgage estimates assume 6.5% PMMS rate[5], 30-year term, 20.0% down. COL Index: 100 = national average[3]. Last reviewed 2026-04-19.