Cost to Own
United States › Washington › Grays Harbor County › Cosmopolis Population 2,301 Data vintage ACS 2023 5-Year Rates updated 2026-10-29
Before you budget for Cosmopolis FEMA rates natural hazard risk in Grays Harbor County Relatively High, with tsunami its highest-ranked hazard against other US counties. It shapes what insurers charge here. See what threatens homes in this county

Total monthly cost of ownership

Cost to Own a Home in Cosmopolis, Washington

A $281,000 home here costs

$2,222

per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $95,000 a year.

P&I 69%Tax 9%Insurance 2%Utilities 9%Upkeep 11%

A standard mortgage calculator would have told you $1,532. The real number is $690 higher every month, 45% more than the payment most buyers budget for.

Compare Grays Harbor County with anywhere in America · full county breakdown

Small-place caveat: the Census publishes these figures for Cosmopolis from a five-year rolling sample, and with about 2,301 residents that sample is small. The median home value here carries a much wider margin of error than a big-city figure does, so treat it as indicative rather than exact. The Grays Harbor County figures are drawn from a far larger sample if you want a steadier number.

Cosmopolis median: $280,700
Under 20% adds PMI
Freddie Mac PMMS
WA average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $224,800 borrowed $1,532
Property tax0.880% effective rate for Cosmopolis itself $206
Homeowners insuranceWashington averages $1,001/yr (NAIC), or 0.178% of home value $42
Electricity14.63ยข/kWh, Washington residential average, EIA $140
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $234
Total monthly $2,222

Cosmopolis against Grays Harbor County and Washington

MeasureCosmopolisGrays Harbor County
Median home value$280,700$279,500
Median property tax$2,470$2,441
Effective tax rate0.880%0.873%
Median gross rent$913$1,018
Population2,30176,397

The weather behind that power bill

Cosmopolis sits in Grays Harbor County, which averages a high of 68.1°F in its hottest month and a low of 37.3°F in its coldest, with 68.76" of precipitation a year and 47% of it in a single three-month stretch. That climate drives 26 cooling and 5,114 heating degree days, which is what sets the $140 electricity line above.

See the full climate breakdown for Grays Harbor County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Grays Harbor County

Full Grays Harbor County cost breakdown · Every county in Washington

Talk to someone who works this market

These are Cosmopolis averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Cosmopolis every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Cosmopolis I already own here and may sell

Common questions

How much does it cost to own a home in Cosmopolis?

A $281,000 home in Cosmopolis, Washington costs approximately $2,222 per month with 20% down at 7.24%. That is $1,532 principal and interest, $206 property tax, $42 homeowners insurance, $208 utilities and $234 set aside for maintenance.

What is the property tax rate in Cosmopolis?

Cosmopolis has an effective property tax rate of 0.880%, based on a median home value of $280,700 and median real estate taxes of $2,470. That is in line with the Grays Harbor County average of 0.873%.

What is the average home price in Cosmopolis?

The median owner-occupied home value in Cosmopolis, Washington is $280,700, against $279,500 across Grays Harbor County.

Is it cheaper to rent or buy in Cosmopolis?

Median gross rent in Cosmopolis is $913 a month, against $2,222 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

What salary do you need to buy a home in Cosmopolis?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Cosmopolis, Washington at today's rate takes a household income of roughly $95,000 a year. That covers the full $2,222 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Cosmopolis, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for Washington.
  • Electricity price, EIA Electric Power Monthly Table 5.6.A.
  • Mortgage rate, Freddie Mac PMMS, refreshed weekly.
  • Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.

Full methodology