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zipcodes.pro — METRO/28420-KENNEWICK-RICHLAND

Kennewick-Richland, WA

ZIP codes
17
CBSA code
28420
Type
Metropolitan statistical area
States
WA
Population
311,807
Combined area
Kennewick-Richland-Walla Walla, WA

Metro areas are defined by the Office of Management and Budget as whole counties, so every ZIP code in a member county is listed here.

Kennewick-Richland in numbers

About 311,807 people live in the Kennewick-Richland metropolitan area. The median household income is $89,010 a year (US: $80,734). The median owner-occupied home is valued at $397,900, and median gross rent is $1,284 a month.

Population311,807Kennewick-Richland311,807
Median household income$89,010Kennewick-Richland$89,010US $80,734
Median home value$397,900Kennewick-Richland$397,900US $332,700
Median gross rent$1,284Kennewick-Richland$1,284US $1,413

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Its 2 counties

Counties in Kennewick-Richland, WA
CountyZIP codesPopulationMedian income
Benton County, WA 11 212,905 $89,874
Franklin County, WA 6 98,902 $86,714

ZIP codes in Kennewick-Richland

ZIP codes in Kennewick-Richland, WA
ZIP City Type Population Median income Median home
98944 Sunnyside , WA Standard 22,817 $64,276 $260,000
99301 Pasco , WA Standard 87,044 $87,951 $385,500
99302 Pasco , WA No street area — — —
99320 Benton City , WA Standard 9,879 $90,102 $373,500
99326 Connell , WA Standard 6,336 $82,500 $320,800
99330 Eltopia , WA Standard 1,210 $140,093 $554,200
99335 Kahlotus , WA Standard 229 $91,667 $250,000
99336 Kennewick , WA Standard 50,735 $62,527 $324,400
99337 Kennewick , WA Standard 33,287 $98,848 $395,500
99338 Kennewick , WA Standard 20,633 $111,042 $551,500
99343 Mesa , WA Standard 3,215 $59,451 $253,000
99345 Paterson , WA Standard 162 $102,500 $415,500
99346 Plymouth , WA Standard 198 $50,865 $209,200
99350 Prosser , WA Standard 14,837 $81,014 $338,500
99352 Richland , WA Standard 37,430 $100,108 $474,100
99353 West Richland , WA Standard 19,251 $121,845 $450,500
99354 Richland , WA Standard 25,559 $91,933 $392,600

Cite this page

zipcodes.pro. “Kennewick-Richland, WA.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/metro/28420-kennewick-richland

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