Benton

Source:

Washington

Benton is a county in Washington with 10 ZIP codes and a total population of 174,522. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

Benton is a county inside Washington (FIPS code 53005) that contains 10 USPS ZIP codes covering a combined population of 174,522 according to Census ACS 5-Year Estimates. Counties are the natural bridge between state-level summaries and ZIP-level detail — crime statistics, HUD Fair Market Rents, and childcare pricing are all published at the county level, while household income and housing values are published at the ZIP level. This page reconciles the two views so you can see which ZIPs drive the county totals.

The 10 ZIPs listed below are ordered by population and each links to the full ZIP detail page with Census demographics, housing, income, home-price history, and cross-agency inputs. The most populated ZIP in Benton is 99336 covering Kennewick with 48,753 residents at 1,412 people per square mile. Population density across ZIPs in this county varies — use the density column to spot urban cores versus rural delivery areas. A single county can contain both a dense downtown ZIP and a large rural ZIP covering several hundred square miles.

Because Benton uses FIPS code 53005, it joins cleanly to county-level federal datasets: HUD Fair Market Rent tables, FBI Uniform Crime Report data, and the Department of Labor National Database of Childcare Prices all key off the same code. That is how neighborhood scorecards combine ZIP-level Census demographics with county-level safety and affordability metrics. All data on this page comes from U.S. Census Bureau ACS 2023 5-Year Estimates and USPS ZIP Code Tabulation Area files — no estimates, no proprietary sources, no editorial scoring.

10

Total ZIPs

174,522

Total Population

ZIP Codes in Benton

Side-by-side: Compare 99336 vs 99337 →

ZIP Code City Population Density
99336 Kennewick 48,753 1,412
99337 Kennewick 29,845 73
99352 Richland 26,975 494
99354 Richland 21,343 406
99353 West Richland 13,306 197
99350 Prosser 12,979 9
99338 Kennewick 11,555 67
99320 Benton City 9,201 26
99346 Plymouth 352 1
99345 Paterson 213 1

What are common questions about ZIP codes in this county?

What is the population of Benton?
Benton has a total population of 174,522 across 10 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Benton?
Benton includes 10 ZIP codes: 99336, 99337, 99352, 99354, 99353, 99350, 99338, 99320, 99346, 99345.
What is the median household income in Benton?
Median household income data for individual ZIP codes in Benton is available on each ZIP code's detail page. Visit any ZIP code link below to see income, housing, and demographic data.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: HUD USPS Crosswalk (ZIP-to-county mapping). Verify with HUD →

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.