ZIP Code Tabulation Area · Washington

ZIP Code 98611: Cowlitz County, WA

ZIP Code 98611 (Cowlitz County, Washington) has an estimated 9,302 residents in 3,539 households. The median household income is $86,322, the median home value is $425,700 and the median gross rent is $1,250/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

9,302

Margin of error ±986

Median household income

$86,322

Margin of error ±$12,746

Median home value

$425,700

Margin of error ±$21,763

Median gross rent

$1,250/mo

Margin of error ±$162

Median age

43.7 yrs

Margin of error ±4.4 yrs

Mean travel time to work

29.2 min

Margin of error ±5.5 min

How ZIP 98611 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 9861143.7 yrsWashington38.3 yrsUnited States38.9 yrs

Median household income

ZIP 98611$86,322Washington$98,141United States$80,734

Per capita income

ZIP 98611$37,729Washington$53,744United States$44,673

Poverty rate

ZIP 986118.5%Washington9.9%United States12.5%

Unemployment rate

ZIP 986114.7%Washington5.1%United States5.2%

Bachelor's degree or higher

ZIP 9861114.9%Washington39.6%United States35.7%

Median home value

ZIP 98611$425,700Washington$564,600United States$332,700

Median gross rent

ZIP 98611$1,250/moWashington$1,760/moUnited States$1,413/mo

Owner-occupied homes

ZIP 9861183.8%Washington63.8%United States65.2%

Mean travel time to work

ZIP 9861129.2 minWashington26.6 minUnited States26.4 min

Worked from home

ZIP 986116.8%Washington19.8%United States15.1%

All figures for ZIP 98611

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 98611 — ACS 2020–2024 5-year estimates
Measure	ZIP 98611	Margin of error	Washington	United States
Total population	9,302	±986	7,816,116	334,922,499
Median age	43.7 yrs	±4.4 yrs	38.3 yrs	38.9 yrs
Households	3,539	±270	3,064,820	129,227,496
Median household income	$86,322	±$12,746	$98,141	$80,734
Per capita income	$37,729	±$4,489	$53,744	$44,673
Poverty rate	8.5%	±2.9 pts	9.9%	12.5%
Unemployment rate	4.7%	±2.8 pts	5.1%	5.2%
Bachelor's degree or higher	14.9%	±2.9 pts	39.6%	35.7%
Median home value	$425,700	±$21,763	$564,600	$332,700
Median gross rent	$1,250/mo	±$162	$1,760/mo	$1,413/mo
Owner-occupied homes	83.8%	±5.3 pts	63.8%	65.2%
Mean travel time to work	29.2 min	±5.5 min	26.6 min	26.4 min
Worked from home	6.8%	±2.5 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 98611
Group	ZIP 98611	Washington	United States
White alone, not Hispanic or Latino	87.2%	63.1%	57.4%
Black or African American alone, not Hispanic or Latino	0.2%	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	0.9%	9.7%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.7%	0.7%	0.2%
Some other race alone, not Hispanic or Latino	0.3%	0.6%	0.6%
Two or more races, not Hispanic or Latino	7.7%	6.8%	4.3%
Hispanic or Latino (of any race)	1.8%	14.4%	19.3%

Where ZIP 98611 is

State: Washington
Main county: Cowlitz County
Largest overlapping place: Castle Rock (2% of the ZIP's land area)
Land area: 136.12 sq mi· about 68 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 Cowlitz County

98581 Cowlitz County, WA 98603 Cowlitz County, WA 98625 Cowlitz County, WA 98626 Cowlitz County, WA 98632 Cowlitz County, WA 98645 Cowlitz County, WA 98649 Cowlitz County, WA 98674 Cowlitz County, WA

See every ZIP code in Washington, or compare ZIP 98611 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.