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Buying a home in Whatcom County, Washington

The typical owner-occupied home in Whatcom County is worth about $585,800, 4% above the Washington median of $564,600 and 76% above the national median of $332,700. Owners pay a median $4,087 a year in property taxes, about 0.70% of their home's value, lower than the Washington rate of 0.81%. The median household earns $81,784 a year, so the median home costs 7.2 times the median income (5.8 times for Washington). 64% of occupied homes here are lived in by their owners, and 63% of those owners still have a mortgage.

Whatcom County at a glance

Whatcom County Washington U.S.
Median home value $585,800 $564,600 $332,700
Median property tax paid per year $4,087 $4,556 $3,119
Property tax as a share of value 0.70% 0.81% 0.94%
Median household income $81,784 $98,141 $80,734
Homes lived in by their owners 64% 64% 65%
Owner homes with a mortgage 63% 66% 61%
Median monthly costs, owners with a mortgage $2,307 $2,445 $1,963
Those costs as a share of the owners' income 24.3% 22.2% 21.0%
Median rent $1,555 $1,760 $1,413
Rent as a share of renters' income 34.8% 30.0% 30.6%
Median year homes were built 1989 1985 1980
Vacant homes 9.2% 7.3% 10.1%
Population 230,503 7,816,116 334,922,499

What a typical home costs per month in Whatcom County

At this week's average 30-year rate of 7.11%, buying the median Whatcom County home of $585,800 with 20% down costs about $3,738 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $4,714, because the loan is bigger and FHA adds mortgage insurance.

Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $160,216 for the 20%-down payment. That payment is 55% of the median Whatcom County household income of $81,784; at that income and 20% down, the 28% guideline points to a home of about $299,000.

The median rent here is $1,555 a month, so owning the median home costs about $2,183 a month more than renting, before you count the equity you build and any tax benefits.

20% down, 30-year conventional loan
Down payment$117,160
Loan amount$468,640
Principal and interest$3,153
Property taxes (0.70% a year)$342
Homeowners insurance (our estimate, 0.5% a year)$244
PMI$0
Total per month$3,738

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3.5% down, 30-year FHA loan
Down payment$20,503
Loan amount$575,190
Principal and interest$3,869
Property taxes (0.70% a year)$342
Homeowners insurance (our estimate, 0.5% a year)$244
FHA mortgage insurance$259
Total per month$4,714

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Questions about home buying in Whatcom County

What is the median home value in Whatcom County?

About $585,800 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in Whatcom County?

Homeowners pay a median $4,087 a year, which is about 0.70% of the median home value. Your bill depends on your home's assessed value and local rates.

What income do you need to buy a home in Whatcom County?

For the median home with 20% down at 7.11%, the payment is about $3,738 a month. Keeping that under 28% of gross income takes about $160,216 a year.

More about Whatcom County

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data