Richest ZIP codes in Benton County, WA
These are the 10 ZIP codes in Benton County with the highest median household income, out of 10 with at least 1,000 residents. 99353 (West Richland, $121,845), 99338 (Kennewick, $111,042) and 99352 (Richland, $100,108) lead the list. There is no single "best" ZIP code in Benton County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Richest ZIP codes in Benton County
| Rank | ZIP | Mailing city | Median household income | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 99353 | West Richland | $121,845 ±$5,797 | 19,251 | 6,411 | — |
| 2 | 99338 | Kennewick | $111,042 ±$8,997 | 20,633 | 6,937 | 8,749 |
| 3 | 99352 | Richland | $100,108 ±$6,505 | 37,430 | 14,795 | 17,235 |
| 4 | 99337 | Kennewick | $98,848 ±$7,984 | 33,287 | 11,390 | — |
| 5 | 99354 | Richland | $91,933 ±$4,814 | 25,559 | 10,518 | 11,073 |
| 6 | 99320 | Benton City | $90,102 ±$16,347 | 9,879 | 3,495 | 3,976 |
| 7 | 99350 | Prosser | $81,014 ±$12,818 | 14,837 | 4,676 | 4,897 |
| 8 | 98930 | Grandview | $64,583 ±$13,804 | 15,730 | 4,923 | 4,989 |
| 9 | 98944 | Sunnyside | $64,276 ±$4,313 | 22,817 | 6,433 | 6,767 |
| 10 | 99336 | Kennewick | $62,527 ±$4,641 | 50,735 | 19,385 | 20,517 |
How we ranked them
Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population. ZIP codes need at least 1,000 residents to be ranked; 10 of 12 qualify.
Which of these to mail, and why
Higher-income ZIP codes suit offers with a bigger ticket: remodeling, pools, roofing, financial planning, private schools, premium dining. A median describes the middle household, not every door, so the routes inside each ZIP still vary.
The top five ZIP codes on this list hold 50,051 households. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 99353 on the EDDM route map
More rankings
- ZIP codes with the highest home values in Benton County
- ZIP codes with the highest homeownership in Benton County
- ZIP codes with the most families with kids in Benton County
- ZIP codes with the most new movers in Benton County
- Youngest ZIP codes in Benton County
- Oldest ZIP codes in Benton County
- Fastest-growing ZIP codes in Benton County
- All Benton County ZIP codes
Businesses that mail these ZIP codes
Map it and price it
EDDM guides
Frequently asked questions
- Which ZIP code in Benton County has the highest median household income?
- 99353 (West Richland), at $121,845 (±$5,797), among 10 ZIP codes with at least 1,000 residents.
- How is this ranking calculated?
- Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population.
- Why are some ZIP codes missing?
- ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.