Zip lookup · WA

99403
Clarkston, Washington.

Clarkston, Asotin County, WA · Lewiston, ID-WA metro · population 20,760

What it costs per month · 99403 $1,803/mo

to buy the typical home at today's mortgage rate — +$884 (+96%) since Jan 2020.

What the home itself did
1 year
Up $7,747 +2%
$335,694$343,441 since Sep 2025
5 years
Up $35,768 +12%
$307,673$343,441 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$500 $1,000 $1,500 $2,000 2002 2006 2010 2014 2018 2022 2026 99403 $1,803 United States $1,922
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • 99403$1,803
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 32 years.

Typical home values in zip 99403 rose 2.3% over the past year — faster than the nation's +1.2%.

This zip spans 2 counties: Asotin County, WA 80% · Garfield County, WA 20%

Zillow also publishes an index for the city itself: Clarkston, WA — measured over the city limits, which is a different area from this zip.

Typical home value $343,441 as of Sep 2026
+2.3%year on year

Typical home value — 99403

Mid-tier homes, smoothed and seasonally adjusted.

$200,000 $250,000 $300,000 $350,000 2018 2020 2022 2024 2026 99403 $343,441 Lewiston $373,980 United States $366,157
$200,000 $250,000 $300,000 $350,000 2018 2022 2026
  • 99403$343,441
  • Lewiston$373,980
  • United States$366,157

Within 20 miles

Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.