Benton City ZIP Codes — Benton County, WA

There is one unique ZIP code in Benton City, Washington and it is 99320. Area code: 509.

ZIP codes

209.31

sq mi land

1.17

sq mi water

509

area code

Benton City, WA ZIP code map

About Benton City, WA

Benton City, Washington, is a charming city located in Benton County. This small community offers a laid-back lifestyle surrounded by the natural beauty of the Pacific Northwest. With its unique blend of rural charm and proximity to larger urban areas, Benton City is a delightful place to live or visit.

Location & geography

Benton City is nestled in the southeastern part of Washington, with a total land area of 209.31 square miles and a water area of 1.17 square miles. The city is bordered by the Yakima River to the west and is approximately 18 miles from the larger city of Richland. Nearby communities include West Richland, Kennewick, and Prosser, each providing additional amenities and attractions.

Community & economy

The character of Benton City reflects a friendly, close-knit atmosphere where residents pride themselves on community involvement. The local economy is diverse, with agriculture and small businesses serving as key contributors to daily life. Residents enjoy outdoor activities and often gather for community events throughout the year, fostering a strong sense of belonging.

Transportation

Benton City is accessible via the nearby highways, primarily the I-82, which connects the city to larger urban centers. The nearest airport is the Tri-Cities Airport, located about 25 miles away in Pasco, providing regional and national connections. Public transit options are limited, with most residents relying on personal vehicles for transportation.

History

Benton City was established in the early 20th century and primarily grew around the agricultural industry. The city's development was significantly influenced by the construction of the nearby Columbia Basin Irrigation Project, which supported farming in the region. Over the years, Benton City has maintained its small-town charm while adapting to changes in the local economy.

Did you know?

A surprising fact about Benton City is that it is one of the oldest cities in Benton County, having been incorporated in 1909. Additionally, the city hosts the Benton City Community Festival every summer, celebrating local culture and community spirit.

ZIP codes for Benton City, WA (1)

ZIP code	City	County	Map
99320	Benton City	Benton	View map

Demographics & statistics

10,023

Population

36.3

Median age

$71,154

Median household income

$31,234

Per capita income

$267,500

Median home value

$1,028

Median monthly rent

82.9%

Home ownership

11.1%

Poverty rate

4.8%

Unemployment

3,256

Housing units

14.8%

Bachelor's or higher

Age distribution

Male Female

447

Under 5

458

344

5–9

353

348

10–14

356

235

15–19

241

307

20–24

314

711

25–34

728

632

35–44

647

601

45–54

615

249

55–59

255

298

60–64

305

565

65–74

579

189

75–84

193

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,621	26.1%
18 and over	7,402	73.9%
65 and over	1,579	15.8%
Median age	36.3 years

Race & ethnicity

White 63.6%

Hispanic or Latino 15.2%

Two or more races 11.1%

Other race 8.2%

American Indian / Alaska Native 1.6%

Asian 0.3%

Group	Count	%
White	7,515	63.6%
Hispanic or Latino	1,790	15.2%
Two or more races	1,314	11.1%
Other race	969	8.2%
American Indian / Alaska Native	191	1.6%
Asian	34	0.3%

Household income

Under $10k 3.1%

$10k–$15k 2.1%

$15k–$25k 8.6%

$25k–$35k 8.4%

$35k–$50k 9.6%

$50k–$75k 20.4%

$75k–$100k 15.9%

$100k–$150k 18.1%

$150k–$200k 7.6%

$200k+ 6.4%

Range	% of households
Under $10k	3.1%
$10k–$15k	2.1%
$15k–$25k	8.6%
$25k–$35k	8.4%
$35k–$50k	9.6%
$50k–$75k	20.4%
$75k–$100k	15.9%
$100k–$150k	18.1%
$150k–$200k	7.6%
$200k+	6.4%
Median income	$71,154

Housing

Home values

Under $50k 6.9%

$50k–$100k 3.7%

$100k–$150k 8.7%

$150k–$200k 9.4%

$200k–$300k 31.1%

$300k–$500k 28.3%

$500k–$1M 11.3%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$267,500
Median rent / month	$1,028
Owner occupied	82.9%
Renter occupied	17.1%
Vacant	7.6%
Single-family detached	51.4%
Large apartment buildings	0.3%
Mobile homes	41.7%
Median rooms	5.8
Avg household size (owned)	2.83

Year built

Era	%
2020 or later	0.0%
2010–2019	9.8%
2000–2009	18.0%
1990–1999	21.9%
1980–1989	14.3%
1970–1979	20.1%
1960–1969	3.4%
1950–1959	4.5%
1940–1949	4.5%
1939 or earlier	3.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.1%
1 bedroom	3.9%
2 bedrooms	17.1%
3 bedrooms	60.5%
4 bedrooms	14.6%
5+ bedrooms	2.8%

Vehicles per household

Vehicles	% of households
No vehicle	4.1%
1 vehicle	15.9%
2 vehicles	30.9%
3 or more	49.2%

Heating fuel

Fuel type	%
Utility gas	2.3%
Electricity	91.0%
Propane / LP gas	0.7%
Wood	4.1%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	1,945	54.5%
Cohabiting couple	432	12.1%
Male householder, no spouse	535	15.0%
Female householder, no spouse	658	18.4%
Households with children under 18	1,219	34.1%
Households with seniors (65+)	1,170	32.8%
Average household size	2.80

Marital status

Status	Male	Female
Never married	29.4%	24.9%
Married	54.5%	51.8%
Separated	1.5%	2.9%
Widowed	2.1%	8.5%
Divorced	12.5%	11.9%

Education

Less than 9th grade 6.8%

Some HS, no diploma 4.8%

HS graduate 29.7%

Some college, no degree 29.1%

Associate's degree 14.8%

Bachelor's degree 10.8%

Graduate / professional 3.9%

Metric	%
HS diploma or higher	88.4%
Bachelor's or higher	14.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	180	8.5%
Kindergarten	29	1.4%
Elementary school	1,189	56.4%
High school	347	16.5%
College / grad school	362	17.2%

Employment

Industry of employment

Education & healthcare 15.4%

Construction 14.6%

Professional & management 12.8%

Agriculture & mining 11.7%

Manufacturing 9.0%

Transportation & utilities 8.3%

Other services 6.8%

Public administration 6.7%

Retail trade 6.5%

Arts, food & hospitality 3.7%

Wholesale trade 1.7%

Finance & real estate 1.7%

Information 1.1%

Occupation

Category	%
Management, business & arts	24.9%
Service	18.8%
Sales & office	16.1%
Natural resources & construction	26.0%
Production & transportation	14.2%

Employment type

Type	%
Private sector	76.9%
Government	16.6%
Self-employed	6.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.3%
Carpool	17.7%
Public transit	0.0%
Walk	0.4%
Other means	0.3%
Avg commute (minutes)	30.4

Poverty

All people 11.1%

Under 18 years 14.8%

18 and over 9.9%

Married-couple families 2.6%

Female-led households 19.3%

Income support

Source	% of households
Social Security	31.8%
Retirement income	27.4%
Supplemental Security	3.6%
Cash public assistance	2.5%
Food stamps / SNAP	21.2%

Health indicators

Condition	%
High blood pressure	30.7%
High cholesterol	34.0%
Heart disease	6.0%
Stroke	2.9%
Asthma	11.3%
Arthritis	25.3%
Kidney disease	2.8%
Pulmonary disease	6.7%
Cancer	6.4%

Behavior / access	%
Binge drinking	16.8%
No physical activity	20.4%
Less than 7 hrs sleep	31.0%
Fair or poor health	15.1%
Poor mental health	15.9%
Poor physical health	11.6%
No health insurance	13.2%
Visited doctor (checkup)	70.7%
Visited dentist	64.3%
Cholesterol screening	87.4%
Teeth loss	12.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	813	11.0%

Disability	%
Any disability	17.0%
Under 18	4.7%
18–64 years	15.8%
65 and over	41.6%

Health insurance coverage

Type	%
Private insurance	59.6%
Public insurance	45.2%
Uninsured under 19	1.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,118	91.0%
Spanish	888	9.7%
Other Indo-European	864	9.5%
Asian & Pacific Islander	21	0.2%
Other languages	3	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,902	88.8%
Born in same state	8,742	87.2%
Born in different state	5,771	57.6%
Foreign born	160	1.6%
Naturalized citizen	1,121	11.2%
Not a US citizen	294	26.2%

Ancestry

Ancestry	Count	%
French	1,706	17%
Italian	1,083	10.8%
Arab	486	4.8%
English	397	4%

Ancestry	Count	%
Polish	275	2.7%
Dutch	75	0.7%
German	18	0.2%

Technology access

Metric	% of households
Computer access	35.6%
Internet access	95.5%

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

Frequently asked questions

What ZIP codes does Benton City, WA have?

Benton City, WA has one ZIP code: 99320. Each ZIP code serves a distinct delivery area within the city and surrounding region.