West Richland, WA ZIP Codes
2 ZIP codes serve West Richland, Washington: 99353 and 99320. Together they are home to 29,130 residents in 9,906 households. That is more than the 17,586 people counted inside West Richland city limits, because these ZIP codes reach past its boundary. Median household income ranges from $90,102 in 99320 to $121,845 in 99353.
West Richland city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 17,586 |
| Households | 5,890 |
| Median household income | $119,892 |
| Median home value | $448,300 |
| Median age | 35.5 |
| Median rent | $1,590 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 29,130 |
| Households (sum of ZIP codes) | 9,906 |
| Median household income, range across ZIP codes | $90,102 (99320) to $121,845 (99353) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $110,646 |
| Homeowners | 84.4% |
| Households with kids under 18 | 39.2% |
| Moved in the past year | 9.4% |
| Carrier routes in EDDM2GO's route library | 7 routes, 3,976 homes (1 of 2 ZIP codes) |
Top facts
- Highest median household income in West Richland: 99353 ($121,845)
- Most residents: 99353 (19,251 people)
- Highest homeownership: 99320 (85.3% own their home)
- Most households with kids: 99353 (43.2% of households)
- Most new movers: 99353 (9.6% moved in last year)
- Youngest median age: 99353 (36.1 years)
- Highest median home value: 99353 ($450,500)
Every ZIP code in West Richland
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 99353 | West Richland | 19,251 | 6,411 | $121,845 | $450,500 | 83.9% | 43.2% | 9.6% | — | — | 61% of its land; mailing city |
| 99320 | Benton City | 9,879 | 3,495 | $90,102 | $373,500 | 85.3% | 31.8% | 9.0% | 7 | 4,065 | 3% of its land |
A ZIP code is listed for West Richland when at least 10% of its land lies inside West Richland city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is West Richland. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside West Richland.
Counties
- Benton County — 12 ZIP codes
Price a mailing to West Richland ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in West Richland, WA?
- 99353 and 99320. A ZIP code is listed for West Richland when at least 10% of its land lies inside West Richland city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is West Richland.
- What is the population of West Richland, WA?
- The Census Bureau counts 17,586 residents inside West Richland city limits (ACS 2020–2024). The 2 ZIP codes that serve West Richland hold 29,130 residents in all.
- What is the median household income in West Richland, WA?
- $119,892 inside West Richland city limits, per the Census Bureau. Across its ZIP codes the medians run from $90,102 to $121,845.
- Which West Richland ZIP code has the highest median household income?
- 99353, at $121,845, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in West Richland, WA?
- For the 1 of 2 ZIP codes in EDDM2GO's stored route library: 7 carrier routes reaching 3,976 residential and 89 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.