Benton County, WA ZIP Codes
12 ZIP codes cover all or part of Benton County, Washington. The Census Bureau counts 212,905 residents in the county, with a median household income of $89,874 and a median home value of $407,800. Median household income ranges from $62,527 in 99336 to $121,845 in 99353. Its largest communities include Kennewick, Richland, West Richland, Sunnyside and Prosser.
Benton County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 212,905 |
| Households | 78,046 |
| Median household income | $89,874 |
| Median home value | $407,800 |
| Median age | 36.3 |
| Median rent | $1,306 |
All 12 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 250,518 |
| Households (sum of ZIP codes) | 89,110 |
| Median household income, range across ZIP codes | $62,527 (99336) to $121,845 (99353) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $87,257 |
| Homeowners | 66.6% |
| Households with kids under 18 | 34.5% |
| Moved in the past year | 11.6% |
| Carrier routes in EDDM2GO's route library | 124 routes, 78,203 homes (8 of 12 ZIP codes) |
Top facts
- Highest median household income in Benton County: 99353 ($121,845)
- Most residents: 99336 (50,735 people)
- Highest homeownership: 99337 (85.5% own their home)
- Most households with kids: 98944 (45.1% of households)
- Most new movers: 99354 (15.3% moved in last year)
- Youngest median age: 98944 (28.7 years)
- Highest median home value: 99338 ($551,500)
Every ZIP code in Benton County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 99336 | Kennewick | 50,735 | 19,385 | $62,527 | $324,400 | 48.3% | 29.7% | 13.1% | 26 | 22,745 | 100% of its land |
| 99352 | Richland | 37,430 | 14,795 | $100,108 | $474,100 | 67.8% | 30.5% | 14.9% | 29 | 18,316 | 100% of its land |
| 99337 | Kennewick | 33,287 | 11,390 | $98,848 | $395,500 | 85.5% | 33.3% | 9.8% | — | — | 100% of its land |
| 99354 | Richland | 25,559 | 10,518 | $91,933 | $392,600 | 60.1% | 28.1% | 15.3% | 18 | 11,713 | 100% of its land |
| 98944 | Sunnyside | 22,817 | 6,433 | $64,276 | $260,000 | 59.8% | 45.1% | 11.6% | 12 | 7,330 | 73% of its land |
| 99338 | Kennewick | 20,633 | 6,937 | $111,042 | $551,500 | 81.9% | 40.4% | 9.1% | 14 | 8,972 | 100% of its land |
| 99353 | West Richland | 19,251 | 6,411 | $121,845 | $450,500 | 83.9% | 43.2% | 9.6% | — | — | 100% of its land |
| 98930 | Grandview | 15,730 | 4,923 | $64,583 | $303,500 | 59.0% | 43.6% | 9.3% | 8 | 5,223 | 38% of its land |
| 99350 | Prosser | 14,837 | 4,676 | $81,014 | $338,500 | 63.7% | 41.6% | 7.1% | 10 | 5,203 | 87% of its land |
| 99320 | Benton City | 9,879 | 3,495 | $90,102 | $373,500 | 85.3% | 31.8% | 9.0% | 7 | 4,065 | 100% of its land |
| 99346 | Plymouth | 198 | 75 | $50,865 | $209,200 | 94.7% | 20.0% | 1.5% | — | — | 100% of its land |
| 99345 | Paterson | 162 | 72 | $102,500 | $415,500 | 68.1% | 27.8% | 3.9% | — | — | 100% of its land |
A ZIP code is listed for Benton County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Kennewick — 85,295 residents · 3 ZIP codes
- Richland — 62,753 residents · 2 ZIP codes
- West Richland — 17,586 residents · 2 ZIP codes
- Sunnyside — 16,277 residents · 1 ZIP code
- Prosser — 6,305 residents · 1 ZIP code
- Finley — 5,634 residents · 1 ZIP code
- Benton City — 3,695 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Benton County — 10 ZIP codes ranked
- ZIP codes with the highest home values in Benton County — 10 ZIP codes ranked
- ZIP codes with the highest homeownership in Benton County — 10 ZIP codes ranked
- ZIP codes with the most families with kids in Benton County — 10 ZIP codes ranked
- ZIP codes with the most new movers in Benton County — 10 ZIP codes ranked
- Youngest ZIP codes in Benton County — 10 ZIP codes ranked
- Oldest ZIP codes in Benton County — 10 ZIP codes ranked
- Fastest-growing ZIP codes in Benton County — 10 ZIP codes ranked
Price a mailing to Benton County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Benton County, WA?
- 99336, 99352, 99337, 99354, 98944, 99338, 99353, 98930, 99350, 99320, 99346 and 99345. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Benton County?
- 212,905 residents in 78,046 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Benton County?
- $89,874 for the county as a whole. Its ZIP codes range from $62,527 (99336) to $121,845 (99353).
- Which Benton County ZIP code has the highest median household income?
- 99353, at $121,845, among ZIP codes with at least 1,000 residents. See the full ranking of Benton County ZIP codes by income.
- How many carrier routes and mailboxes are in Benton County?
- For the 8 of 12 ZIP codes in EDDM2GO's stored route library: 124 carrier routes reaching 78,203 residential and 5,197 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.