Residential delivery area · Washington
ZIP Code 99336: Kennewick, WA
ZIP code 99336 is in Kennewick, Washington, entirely in Benton County (Census 2020 ZIP-county file). About 51,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Kennewick's 3 residential ZIP codes. Median household income is $62,527 (Census Bureau, ACS 2020-2024). By Census place, 94% of its land lies in Kennewick; 6% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Kennewick · 3 residential ZIPs
- County
- Benton County
- Census places
- Kennewick
- Metro area
- Kennewick-Richland, WA
- House district
- WA-4 119th Congress
- State
- Washington
- Time zone
- Pacific
- Land area
- 13.4 sq mi · 3,787 people per sq mi
Where is ZIP code 99336?
99336 centers on 46.214°, -119.176° and covers 13.4 square miles of land plus 1.2 of water. It borders 4 ZIP codes: 99338, 99352, 99337, 99301.
The map draws ZIP code areas only. For the streets inside 99336, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 99336 compare with the rest of Kennewick?
| Measure | 99336 | In Kennewick | In Benton County | In WA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 50,735 | 1st of 3 | 1st of 12 | 17th of 605 |
| Median household income | $63k | 3rd of 3 | 10th of 10 | 330th of 363 |
| Median home value | $324k | 3rd of 3 | 8th of 10 | 337th of 392 |
Its median household income is higher than in 34% of U.S. residential ZIP codes, and it is denser than 91% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 99336?
The 2020 Census counted 51,127 people in 99336; the ACS, which samples households over 2020-2024, estimates 50,735. Between the 2010 and 2020 censuses its population grew 4.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 50,735
- 2020 Census count
- 51,127+4.9% since 2010 (48,753)
- Households
- 19,385
- Median age
- 34.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 99336?
Of the 50,735 people the ACS estimates in 99336, 25.7% are under 18 and 15.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (53.3%), then Hispanic or Latino (38.0%).
- Under 1825.7%
- 18 to 6459.0%
- 65 and older15.2%
- White, not Hispanic53.3%
- Hispanic or Latino38.0%
- Other or two or more4.3%
- Black, not Hispanic2.6%
- Asian, not Hispanic1.9%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 99336 earn?
Median household income is $62,527 (ACS 2020-2024), the 10th highest of the 10 ranked ZIP codes in Benton County. It is not measurably different from 2015-2019 ($61,316 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $62,527
- Income per person
- $31,700
- Below the poverty line
- 17.4%
- Unemployed (of the labor force)
- 5.8%
- Adults 25+ with a bachelor's degree
- 21.4%
- Adjusted gross income per tax return, 2022
- $60,05322,000 returns; wages 74% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 99336?
FHFA's house price index for 99336, built from repeat sales and appraisals of the same homes, rose 129% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +4.4% in 2025.
- Median home value (owners' estimate)
- $324,400
- Median gross rent
- $1,193
- Homes owned by their occupants
- 48.3%
- Housing units
- 21,002
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 99336?
1,914 business establishments had a location in this ZIP code in 2023, 27 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade308
- Health care and social assistance261
- Construction217
- Accommodation and food services205
- Other services (except public administration)175
- Professional, scientific, and technical services161
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 99336?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 99338 | Kennewick | 20,633 | $111k | 5.5 mi |
| 99352 | Richland | 37,430 | $100k | 5.9 mi |
| 99337 | Kennewick | 33,287 | $99k | 11.8 mi |
| 99301 | Pasco | 87,044 | $88k | 15.6 mi |
| 99354 | Richland | 25,559 | $92k | 10.1 mi (near) |
| 99353 | West Richland | 19,251 | $122k | 12.3 mi (near) |
| 99346 | Plymouth | 198 | $51k | 14.1 mi (near) |
| 99323 | Burbank | 4,082 | $93k | 14.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.