HousingHandbookReference data

U.S. ZIP Code · WA98645

Cowlitz County · Longview-Kelso, WA

Typical home value

$484,825[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year
+1.1%
5-year / yr
+4.1%
10-year / yr
+8.0%

Relative price

vs U.S.
+70.7%
vs metro
≈ metro median
vs state
-3.6%
ZIP 98645 location in WA
Location of ZIP 98645 in WA

Price history

Zillow Home Value Index — monthly, smoothed and seasonally adjusted.

The typical home in 98645 is worth $484,825. Over the past year, values have risen 1.1%. The effective property tax rate is 0.6%.

#Rent & investment

Typical asking rent, and the returns it implies at the current home value.

Monthly rent
[2]
Gross yield
[2]
Cap rate
[2]

#Property tax

Effective rate — total real estate taxes paid relative to total home value.

Effective tax rate
0.6%[3]
Typical annual tax
$2,749[3]

#Climate risk

FEMA National Risk Index ratings for Cowlitz County. "Not Applicable" means the hazard does not threaten the county.

Overall risk
Relatively Moderate[4]
Riverine flood
Relatively Moderate
Coastal flood
Relatively Low
Wildfire
Very Low
Drought
No Rating
Heat wave
Relatively Moderate
Hurricane
Not Applicable
Tornado
Very Low
Earthquake
Relatively Moderate
Winter weather
Relatively Low

#Who lives here

Population
2,216[3]
Median household income
$101,429[3]

#Migration

Household moves in and out of Cowlitz County over a year, from IRS tax-return data.

Net migration
+241[5]
Moved in
2,903
Moved out
2,662

Run the numbers

Interactive calculators pre-filled with this ZIP's typical home value, rent, and property-tax rate. Edit any field to recompute.

Gross yield
Net yield (after ~40% expenses)
Annual rent

Gross and net yield are estimates based on the inputs and the selected expense ratio. Actual income and expenses will vary by property and market. Not investment advice.

Monthly payment$2,452
Loan principal$387,860
Down payment$96,965
Total interest paid$494,694

Estimated monthly payments include principal and interest only. Actual costs will include property tax, insurance, possibly PMI, and HOA fees not modeled here. Loan terms shown are estimates; consult a licensed lender for current rates and qualification.

Own : rent ratio
Monthly cost to own$3,086
Monthly rent

This calculator projects multi-year scenarios based on assumptions about appreciation, rent growth, and investment returns — none of which are guaranteed. Actual outcomes depend on variables this tool cannot know. Not financial or real estate advice.

#Metro ranking

Where this ZIP sits among others in its metro area.

Appreciation
63rd percentile[1]
Rental yield
[2]
Property tax
0th percentile[3]

Frequently asked

How much is a home worth in ZIP code 98645?
The typical home in 98645 is worth $484,825, based on the Zillow Home Value Index.
Are home values rising in 98645?
Home values in 98645 are up 1.1% over the past year, and up 4.1% a year over five years.
What is the property tax rate in 98645?
The effective property tax rate in 98645 is 0.6% — roughly $2,749 a year on a typical home.
Who lives in 98645?
ZIP code 98645 has a population of 2,216 and a median household income of $101,429.

#Comparable ZIPs

Same metro, nearest typical home value. Each card shows the comparable ZIP's headline numbers so you can scan at a glance.

  • Castle Rock, WA

    Typical home
    $479,546
    Gross yield
  • WA

    Typical home
    $502,386
    Gross yield
  • Kalama, WA

    Typical home
    $543,339
    Gross yield
  • WA

    Typical home
    $562,140
    Gross yield
  • Longview, WA

    Typical home
    $390,727
    Gross yield
    4.2%
  • Kelso, WA

    Typical home
    $390,162
    Gross yield
    5.1%

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