US ZIP Code
99338

Kennewick, WA

Benton County  ·  Washington

● Active
👥 19,235 Population ↑ 16% since 2019
💰 $116,002 Median HH Income
▲ 52% above avg
🎂 39.2 Median Age ↑ 5% since 2019
🏠 $526,700 Median Home Value
▲ 89% above avg ↑ 61% since 2019
🎓 53.7% College Grads
▲ 39% above avg
📊 3.9% Unemployment
▼ 20% below avg ↑ 5% since 2019
ZIP Code Details
ZIP Code99338
CityKennewick
StateWashington (WA)
CountyBenton County
Area Code509
Elevation1,608 ft
Latitude46.173626
Longitude-119.274012
TimezoneLos Angeles (DST)
FIPS53005
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 51.4% (9,881) Female 48.6% (9,354) ♀

Race & Ethnicity

White: 74.1%Hispanic: 16.4%Black: 2.4%Asian: 2.2%Other: 4.8%Race
White74.1%
Hispanic16.4%
Black2.4%
Asian2.2%
Other4.8%

Age Breakdown

Under 5
7%
5–17
22%
18–24
8%
25–44
24%
45–64
23%
65+
8%

Key Indicators

Median Age39.2 yrs ↑ 5% since 2019
Avg Household Size2.90
Below Poverty8.2% ▼ 18% below avg
College Grads53.7% ▲ 39% above avg
Unemployment3.9% ▼ 20% below avg
No HS Diploma151 (1.3%)
HS Graduate2,021 (17.4%)
Some College1,672 (14.4%)
Associates1,535 (13.2%)
Bachelors1,306 (11.2%)
Graduate Degree4,943 (42.5%)

Education

No HS: 1.3%HS Grad: 17.4%Some College: 14.4%Associates: 13.2%Bachelors: 11.2%Graduate: 42.5%Edu
No HS1.3%
HS Grad17.4%
Some College14.4%
Associates13.2%
Bachelors11.2%
Graduate42.5%
Housing & Income

Housing Tenure

Owner: 83.7%Renter: 16.3%Tenure
Owner83.7%
Renter16.3%

Home Value Distribution

Under $50k
1%
$50k–100k
1%
$100k–150k
2%
$150k–200k
1%
$200k–300k
6%
$300k–500k
36%
Over $500k
54%

Financials

Median HH Income$116,002 ▲ 52% above avg
Median Home Value$526,700 ▲ 89% above avg ↑ 61% since 2019
Home/Income Ratio4.5x (nat avg ~3.5x)
Median Rent$1,474/mo ↑ 29% since 2019
Total Units6,909
Vacant Units272
Avg HH Size2.90

Income Distribution

Under $25k
5%
$25k–50k
8%
$50k–75k
13%
$75k–100k
13%
$100k–150k
21%
$150k–200k
16%
Over $200k
25%
Employment & Commute

How People Get to Work

Drove Alone
85%
Work From Home
15%

Commute Time

Under 15 min
35%
15–30 min
42%
30–45 min
13%
Over 45 min
10%
Housing Stock

Year Built

Before 1940
0%
1940s–1950s
0%
1960s–1970s
11%
1980s–1990s
21%
2000+
67%

Summary

Total Units6,909
Vacant272
Owner Occupied83.7%
Renter Occupied16.3%
Avg HH Size2.90
Frequently Asked Questions
ZIP code 99338 is in Kennewick, WA, in Benton County.
ZIP code 99338 is located in Washington (WA).
ZIP code 99338 is in Benton County, WA.
ZIP 99338 observes the Los Angeles timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 99338 is 19,235 people (ACS 2023).
The median household income in ZIP code 99338 is $116,002 (ACS 2023).
The median home value in ZIP 99338 is $526,700 (ACS 2023).
About ZIP Code 99338

ZIP code 99338 is located in Kennewick, Washington, within Benton County. With a population of 19,235, this is a moderately populated ZIP code with a middle-aged community — the median age is 39.2 years. Economically, 99338 is a upper-middle-income ZIP code: the median household income of $116,002 is significantly above the national average.

Real estate in ZIP code 99338 represents a premium housing market. The median home value of $526,700 is significantly above the national average. Renters can expect to pay around $1,474 per month in median rent. Homeownership is strong here — 83.7% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 61% since 2019.

The population of 99338 is primarily White (74.10%). Residents are well-educated — 53.7% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 8.2%.

The unemployment rate in 99338 stands at 3.9%, which is below the national average. About 14% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 76%.

Overall, ZIP code 99338 in Kennewick, WA is characterized as upper-middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 19,235 residents, a median household income of $116,002, and a median home value of $526,700, it offers a clear picture of life in this part of Washington.