99337 ZIP Code — Kennewick, WA

Benton County, Washington

ZIP code 99337 is located in Kennewick, Washington, within Benton County. It covers approximately 165.94 square miles and serves a population of 32,581 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.

About ZIP code 99337

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $330,900. Owner-occupancy is high at 86%, well above the national average.

Median household income is $88,593. 34% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 24 minutes is near the national average.

Educational attainment is near the national average, with 28% of residents holding a bachelor's degree or higher.

Overall, ZIP code 99337 reflects a community defined by high homeownership and a significant Social Security-dependent population.

32,581

population

165.94

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

99337 ZIP code map

Cities in ZIP code 99337

Below are the cities the US Postal Service accepts for ZIP code 99337. Using any city not on this list may result in mail delivery delays.

City	Status
Kennewick	Preferred

Nearby ZIP codes

99336 Kennewick (11 mi) 99323 Burbank (12.9 mi) 99338 Kennewick (13.4 mi) 99338 Kennewick (13.4 mi) 97882 Umatilla (14 mi) 99352 Richland (15.8 mi) 97835 Helix (16.2 mi) 99360 Touchet (18.9 mi) 97875 Stanfield (19.4 mi)

Demographics updated 06/2026

Population
Total population	32,581
Population density	196 / sq mi
State FIPS	53
County FIPS	005

Geography
Land area	165.94 sq mi
Water area	15.69 sq mi
Latitude	46.0708
Longitude	-119.0975
Timezone	Pacific (PT)
Area code	509

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.9%	32.9%	31.7%
$50k – $100k	38.2%	33.1%	30.6%
$100k – $200k	29.0%	26.4%	27.1%
Over $200k	6.9%	7.6%	10.6%

Demographics & statistics

32,581

Population

196

People per sq mi

38.5

Median age

$88,593

Median household income

$37,761

Per capita income

$330,900

Median home value

$1,211

Median monthly rent

85.8%

Home ownership

8.4%

Poverty rate

4.6%

Unemployment

9,980

Housing units

28.0%

Bachelor's or higher

Age distribution

Male Female

1,002

Under 5

941

1,377

5–9

1,295

859

10–14

808

1,280

15–19

1,203

1,185

20–24

1,114

1,811

25–34

1,703

2,092

35–44

1,967

2,058

45–54

1,934

1,158

55–59

1,088

1,166

60–64

1,095

1,825

65–74

1,716

688

75–84

647

293

85+

276

← Male

Female →

Age summary

Group	Count	%
Under 18	7,671	23.5%
18 and over	24,910	76.5%
65 and over	5,445	16.7%
Median age	38.5 years

Race & ethnicity

White 69%

Hispanic or Latino 12.5%

Two or more races 7.7%

Other race 7%

Asian 1.9%

Black or African American 1.4%

American Indian / Alaska Native 0.5%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
White	25,660	69%
Hispanic or Latino	4,634	12.5%
Two or more races	2,870	7.7%
Other race	2,621	7%
Asian	693	1.9%
Black or African American	510	1.4%
American Indian / Alaska Native	170	0.5%
Native Hawaiian / Pacific Islander	57	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.9%	32.9%	31.7%
$50k – $100k	38.2%	33.1%	30.6%
$100k – $200k	29.0%	26.4%	27.1%
Over $200k	6.9%	7.6%	10.6%

Under $10k 2.0%

$10k–$15k 1.9%

$15k–$25k 5.7%

$25k–$35k 5.1%

$35k–$50k 6.7%

$50k–$75k 18.6%

$75k–$100k 16.2%

$100k–$150k 20.9%

$150k–$200k 11.7%

$200k+ 11.2%

Range	% of households
Under $10k	2.0%
$10k–$15k	1.9%
$15k–$25k	5.7%
$25k–$35k	5.1%
$35k–$50k	6.7%
$50k–$75k	18.6%
$75k–$100k	16.2%
$100k–$150k	20.9%
$150k–$200k	11.7%
$200k+	11.2%
Median income	$88,593

Housing

Home values

Under $50k 3.9%

$50k–$100k 2.0%

$100k–$150k 3.1%

$150k–$200k 5.4%

$200k–$300k 25.8%

$300k–$500k 44.9%

$500k–$1M 14.3%

$1M+ 0.6%

Housing overview

Metric	Value
Median home value	$330,900
Median rent / month	$1,211
Owner occupied	85.8%
Renter occupied	14.2%
Vacant	5.0%
Single-family detached	73.8%
Large apartment buildings	1.6%
Mobile homes	17.8%
Median rooms	6.4
Avg household size (owned)	2.95

Year built

Era	%
2020 or later	0.6%
2010–2019	10.1%
2000–2009	16.0%
1990–1999	19.1%
1980–1989	7.5%
1970–1979	27.7%
1960–1969	7.6%
1950–1959	7.8%
1940–1949	2.7%
1939 or earlier	0.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.8%
1 bedroom	2.5%
2 bedrooms	14.8%
3 bedrooms	50.1%
4 bedrooms	24.9%
5+ bedrooms	6.9%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	18.8%
2 vehicles	38.3%
3 or more	41.7%

Heating fuel

Fuel type	%
Utility gas	19.3%
Electricity	77.9%
Propane / LP gas	1.0%
Fuel oil	0.4%
Wood	1.1%

Households & families

Household type	Count	%
Married-couple family	6,753	61.7%
Cohabiting couple	626	5.7%
Male householder, no spouse	1,431	13.1%
Female householder, no spouse	2,142	19.6%
Households with children under 18	3,639	33.2%
Households with seniors (65+)	3,642	33.3%
Average household size	2.95

Marital status

Status	Male	Female
Never married	35.3%	23.1%
Married	54.0%	54.2%
Separated	0.7%	1.9%
Widowed	1.7%	7.7%
Divorced	8.3%	13.0%

Education

Less than 9th grade 7.4%

Some HS, no diploma 5.1%

HS graduate 24.5%

Some college, no degree 22.9%

Associate's degree 12.1%

Bachelor's degree 18.7%

Graduate / professional 9.2%

Metric	%
HS diploma or higher	87.5%
Bachelor's or higher	28.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	228	2.9%
Kindergarten	711	9.1%
Elementary school	3,089	39.6%
High school	1,962	25.1%
College / grad school	1,812	23.2%

Employment

Industry of employment

Education & healthcare 22.4%

Retail trade 13.7%

Professional & management 9.3%

Construction 9.2%

Transportation & utilities 8.4%

Arts, food & hospitality 8.2%

Manufacturing 6.6%

Public administration 5.1%

Other services 4.6%

Finance & real estate 4.4%

Agriculture & mining 3.5%

Wholesale trade 3.2%

Information 1.5%

Occupation

Category	%
Management, business & arts	35.5%
Service	15.7%
Sales & office	21.8%
Natural resources & construction	12.0%
Production & transportation	15.1%

Employment type

Type	%
Private sector	74.9%
Government	19.8%
Self-employed	5.2%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	79.2%
Carpool	10.2%
Public transit	0.4%
Walk	0.9%
Work from home	8.9%
Other means	0.4%
Avg commute (minutes)	23.6

Poverty

All people 8.4%

Under 18 years 10.9%

18 and over 7.6%

Married-couple families 6.8%

Female-led households 6.0%

Income support

Source	% of households
Social Security	33.8%
Retirement income	27.3%
Supplemental Security	4.7%
Cash public assistance	1.8%
Food stamps / SNAP	11.4%

Health indicators

Condition	%
Obesity	34.4%
High blood pressure	31.1%
High cholesterol	33.8%
Diabetes	9.5%
Heart disease	6.2%
Stroke	3.0%
Asthma	11.2%
Arthritis	25.7%
Kidney disease	2.9%
Pulmonary disease	6.8%
Cancer	6.7%

Behavior / access	%
Smoking	16.4%
Binge drinking	16.2%
No physical activity	20.5%
Less than 7 hrs sleep	30.5%
Depression	27.5%
Fair or poor health	15.2%
Poor mental health	15.6%
Poor physical health	11.6%
No health insurance	12.7%
Visited doctor (checkup)	71.3%
Visited dentist	64.4%
Cholesterol screening	87.4%
Teeth loss	12.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,857	7.5%

Disability	%
Any disability	16.1%
Under 18	3.3%
18–64 years	14.5%
65 and over	40.4%

Health insurance coverage

Type	%
Private insurance	68.3%
Public insurance	38.9%
No insurance	7.5%
Uninsured under 19	0.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	30,638	94.0%
Spanish	2,737	8.9%
Other Indo-European	2,118	6.9%
Asian & Pacific Islander	105	0.3%
Other languages	399	1.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	28,582	87.7%
Born in same state	28,433	87.3%
Born in different state	18,123	55.6%
Foreign born	149	0.5%
Naturalized citizen	3,999	12.3%
Not a US citizen	2,125	53.1%

Ancestry

Ancestry	Count	%
French	4,095	12.6%
Italian	3,036	9.3%
Arab	2,074	6.4%
Polish	994	3.1%

Ancestry	Count	%
English	741	2.3%
Irish	519	1.6%
Dutch	355	1.1%
German	106	0.3%

Technology access

Metric	% of households
Computer access	33.6%
Internet access	97.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 99337

What city is ZIP code 99337 in?

ZIP code 99337 is primarily assigned to Kennewick, Washington.

What county is ZIP code 99337 in?

ZIP code 99337 falls within Benton County, Washington.

Is ZIP code 99337 mostly owner-occupied?

86% of occupied units in ZIP code 99337 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 99337?

The median home value in ZIP code 99337 is $330,900.

What is the population of ZIP code 99337?

ZIP code 99337 has an estimated population of 32,581 residents, with a density of 196 people per square mile.

What is the median household income in ZIP code 99337?

The median household income in ZIP code 99337 is $88,593, above the national median of ~$75,000.

What timezone is ZIP code 99337 in?

ZIP code 99337 observes the PST timezone.