ZIP Code Tabulation Area · Washington

ZIP Code 99320: Benton County, WA

ZIP Code 99320 (Benton County, Washington) has an estimated 9,879 residents in 3,495 households. The median household income is $90,102, the median home value is $373,500 and the median gross rent is $881/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

9,879

Margin of error ±812

Median household income

$90,102

Margin of error ±$16,347

Median home value

$373,500

Margin of error ±$34,939

Median gross rent

$881/mo

Margin of error ±$277

Median age

36.4 yrs

Margin of error ±5.1 yrs

Mean travel time to work

31.1 min

Margin of error ±7.1 min

How ZIP 99320 compares with Washington and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 9932036.4 yrsWashington38.3 yrsUnited States38.9 yrs

Median household income

ZIP 99320$90,102Washington$98,141United States$80,734

Per capita income

ZIP 99320$39,599Washington$53,744United States$44,673

Poverty rate

ZIP 9932010.2%Washington9.9%United States12.5%

Unemployment rate

ZIP 993205.2%Washington5.1%United States5.2%

Bachelor's degree or higher

ZIP 9932018.0%Washington39.6%United States35.7%

Median home value

ZIP 99320$373,500Washington$564,600United States$332,700

Median gross rent

ZIP 99320$881/moWashington$1,760/moUnited States$1,413/mo

Owner-occupied homes

ZIP 9932085.3%Washington63.8%United States65.2%

Mean travel time to work

ZIP 9932031.1 minWashington26.6 minUnited States26.4 min

Worked from home

ZIP 9932012.0%Washington19.8%United States15.1%

All figures for ZIP 99320

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 99320 — ACS 2020–2024 5-year estimates
Measure	ZIP 99320	Margin of error	Washington	United States
Total population	9,879	±812	7,816,116	334,922,499
Median age	36.4 yrs	±5.1 yrs	38.3 yrs	38.9 yrs
Households	3,495	±310	3,064,820	129,227,496
Median household income	$90,102	±$16,347	$98,141	$80,734
Per capita income	$39,599	±$4,460	$53,744	$44,673
Poverty rate	10.2%	±4.2 pts	9.9%	12.5%
Unemployment rate	5.2%	±2.6 pts	5.1%	5.2%
Bachelor's degree or higher	18.0%	±3.9 pts	39.6%	35.7%
Median home value	$373,500	±$34,939	$564,600	$332,700
Median gross rent	$881/mo	±$277	$1,760/mo	$1,413/mo
Owner-occupied homes	85.3%	±2.8 pts	63.8%	65.2%
Mean travel time to work	31.1 min	±7.1 min	26.6 min	26.4 min
Worked from home	12.0%	±3.8 pts	19.8%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 99320
Group	ZIP 99320	Washington	United States
White alone, not Hispanic or Latino	70.2%	63.1%	57.4%
Black or African American alone, not Hispanic or Latino	0.0%	3.8%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	1.2%	0.8%	0.5%
Asian alone, not Hispanic or Latino	1.0%	9.7%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.2%	0.7%	0.2%
Some other race alone, not Hispanic or Latino	0.5%	0.6%	0.6%
Two or more races, not Hispanic or Latino	4.1%	6.8%	4.3%
Hispanic or Latino (of any race)	22.9%	14.4%	19.3%

Where ZIP 99320 is

State: Washington
Main county: Benton County
Largest overlapping place: West Richland (3% of the ZIP's land area)
Land area: 209.31 sq mi· about 47 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Benton County

98944 Benton County, WA 99336 Kennewick, WA 99337 Benton County, WA 99338 Benton County, WA 99345 Benton County, WA 99346 Benton County, WA 99350 Benton County, WA 99352 Richland, WA 99353 West Richland, WA 99354 Richland, WA

See every ZIP code in Washington, or compare ZIP 99320 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.