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99346 ZIP Code

Plymouth, Washington

December 30, 2025
ZIP Code:99346
City/Town:Plymouth
County:Benton
State:Washington
ZIP Type:PO Box
Population:372
Median Household Income:$61,944
Per Capita Income:$29,403
Total Housing Units:114
Median Home Value:$223,600
Land Area:142.9 sq miles
370.1 sq km
Water Area:3.9 sq miles
10.1 sq km
Coordinates:46.0307, -119.3032

Population Information (99346 zip code)

#%US
Total Population:372----
Male:17847.8%49.6%
Female:19452.2%50.4%
Median Age:28.9 yrs--38.5 yrs
Under 5 years:287.5%5.7%
5 to 9 years:318.3%6.0%
10 to 14 years:164.3%6.5%
15 to 19 years:225.9%6.6%
20 to 24 years:5715.3%6.7%
25 to 34 years:349.1%13.7%
35 to 44 years:308.1%12.9%
45 to 54 years:4010.8%12.4%
55 to 59 years:287.5%6.5%
60 to 64 years:308.1%6.4%
65 to 74 years:328.6%9.7%
75 to 84 years:00.0%4.8%
85 years and over:246.5%2.0%

Housing Information (99346 zip code)

#%US
Median home value:$223,600--$281,900
Median rooms:5.3--5.5
Median rent:$1,000 / mo.--$1,268 / mo.
Total housing units:114----
Occupied housing units:114100.0%38.0%
Vacant housing units:00.0%4.6%
Housing tenure:------
Owner-occupied:8574.6%64.8%
Renter-occupied:2925.4%35.2%

Educational Attainment (99346 zip code)

#%US
Population 25 years and over:218----
Less than 9th grade:2812.8%4.7%
9th to 12th grade, no diploma:177.8%6.1%
High school graduate:5424.8%26.4%
Some college, no degree:4420.2%19.7%
Associate degree:2411.0%8.7%
Bachelor's degree:5123.4%20.9%
Graduate or professional degree:00.0%13.7%
Percent high school graduate or higher:--79.4%89.1%
Percent bachelor's degree or higher:--23.4%34.3%

Income Information (99346 zip code)

ValueUS
Median household income:$61,944 / yr.$75,149 / yr.
Mean household income:$66,953 / yr.$105,833 / yr.
Median family income:$49,318 / yr.$92,646 / yr.
Per capita income:$29,403 / yr.$41,261 / yr.

Employment (99346 zip code)

#%US
In labor force:170--63.5%
Employed:13579.4%96.4%
Unemployed:3520.6%5.3%
Not in labor force:127----
Class of Worker:------
Private wage and salary:12088.9%79.7%
Government workers:1511.1%14.2%
Self-employed:00.0%5.9%
Unpaid family workers:00.0%0.1%

Race & Ethnicity (99346 zip code)

#%US
Race (one race):------
White:13034.9%61.6%
Black or African American:00.0%12.4%
American Indian/Alaska Native:00.0%1.1%
Asian:00.0%6.0%
Native Hawaiian/Pacific Islander:00.0%0.2%
Some other race:23462.9%8.4%
Two or more races:82.2%10.2%
Hispanic or Latino (any race):23864.0%18.7%
Mexican:24365.3%11.2%
Puerto Rican:24365.3%1.8%
Cuban:00.0%0.7%
Other Hispanic or Latino:00.0%5.0%
Not Hispanic or Latino:00.0%81.1%

Income Distribution (99346 zip code)

Household IncomeHouseholds%US
Less than $10,000:00.0%4.9%
$10,000 to $14,999:54.4%3.8%
$15,000 to $24,999:1714.9%7.0%
$25,000 to $34,999:97.9%7.4%
$35,000 to $49,999:1916.7%10.7%
$50,000 to $74,999:1815.8%16.1%
$75,000 to $99,999:2219.3%12.8%
$100,000 to $149,999:2421.1%17.1%
$150,000 to $199,999:00.0%8.8%
$200,000 or more:00.0%11.4%

Commute to Work (99346 zip code)

Commute MethodWorkers%US
Drove alone:8965.9%67.8%
Carpooled:3123.0%8.7%
Public transportation:00.0%4.2%
Walked:00.0%2.5%
Other means:00.0%0.9%
Worked from home:1511.1%13.8%
Mean travel time to work:19.7 min--26.7 min

Industry (99346 zip code)

Industry SectorWorkers%US
Agriculture, forestry, fishing, mining:2518.5%1.6%
Construction:00.0%6.9%
Manufacturing:2317.0%10.0%
Wholesale trade:2317.0%2.4%
Retail trade:107.4%11.0%
Transportation, warehousing, utilities:2115.6%5.8%
Information:00.0%1.9%
Finance, insurance, real estate:43.0%6.7%
Professional, scientific, management:00.0%12.1%
Education, health care, social services:139.6%23.3%
Arts, entertainment, food services:128.9%9.0%
Other services:00.0%4.7%
Public administration:43.0%4.7%

Poverty Status (99346 zip code)

#%US
Poverty Rate:--17.5%8.8%
All people below poverty level:------
Under 18 years:----16.3%
18 to 64 years:----11.0%
65 years and over:----10.3%

Health Insurance (99346 zip code)

#%US
With health insurance:33590.1%91.3%
Private health insurance:24265.1%67.6%
Public health coverage:16343.8%35.9%
Without health insurance:379.9%8.7%

Benefits & Assistance (99346 zip code)

Households with:#%US
Earnings:6859.6%77.4%
Social Security income:3429.8%31.0%
Retirement income:97.9%21.8%
Supplemental Security Income (SSI):1614.0%4.5%
Cash public assistance income:00.0%1.8%
SNAP (food stamps) benefits:1916.7%11.4%

Housing Types (99346 zip code)

Structure TypeUnits%US
1-unit, detached:5850.9%61.4%
1-unit, attached:00.0%6.1%
2 units:00.0%3.4%
3 or 4 units:00.0%4.3%
5 to 9 units:00.0%4.6%
10 to 19 units:1210.5%4.3%
20 or more units:00.0%9.9%
Mobile home:3631.6%5.8%
Boat, RV, van, etc.:87.0%0.1%

Year Structure Built (99346 zip code)

Year BuiltUnits%US
Built 2020 or later:00.0%0.6%
Built 2010 to 2019:00.0%8.2%
Built 2000 to 2009:1916.7%13.5%
Built 1990 to 1999:3127.2%13.2%
Built 1980 to 1989:1210.5%13.2%
Built 1970 to 1979:3934.2%14.6%
Built 1960 to 1969:1311.4%10.2%
Built 1950 to 1959:00.0%9.9%
Built 1940 to 1949:00.0%4.6%
Built 1939 or earlier:00.0%12.0%

Bedrooms (99346 zip code)

Number of BedroomsUnits%US
No bedroom (studio):43.5%2.4%
1 bedroom:87.0%3.0%
2 bedrooms:2925.4%9.1%
3 bedrooms:3328.9%15.9%
4 bedrooms:2925.4%18.8%
5 or more bedrooms:119.6%17.6%

Heating Fuel (99346 zip code)

Fuel TypeUnits%US
Utility gas:00.0%47.1%
Bottled, tank, or LP gas:00.0%4.9%
Electricity:114100.0%40.2%
Fuel oil, kerosene, etc.:00.0%4.2%
Coal or coke:00.0%0.1%
Wood:00.0%1.5%
Solar energy:00.0%0.1%
Other fuel:00.0%0.5%
No fuel used:00.0%0.2%

Vehicles Available (99346 zip code)

VehiclesHouseholds%US
No vehicle available:00.0%8.3%
1 vehicle available:1210.5%32.6%
2 vehicles available:4035.1%37.0%
3 or more vehicles available:6254.4%22.1%

Home Value Distribution (99346 zip code)

Value RangeOwner Units%US
Less than $50,000:89.4%5.7%
$50,000 to $99,999:910.6%7.8%
$100,000 to $149,999:00.0%9.2%
$150,000 to $199,999:910.6%10.8%
$200,000 to $299,999:3541.2%19.9%
$300,000 to $499,999:1517.6%24.1%
$500,000 to $999,999:44.7%17.0%
$1,000,000 or more:55.9%5.6%

Housing Costs (99346 zip code)

ValueUS
Median owner costs (with mortgage):$1,818 / mo.$1,828 / mo.
Median owner costs (no mortgage):$346 / mo.$584 / mo.
Median gross rent:$1,000 / mo.$1,268 / mo.
Average household size (owner-occupied):2.842.53
Average household size (renter-occupied):4.142.38

Households (99346 zip code)

#%US
Total households:114----
Married-couple households:4337.7%47.5%
Cohabiting couple households:1311.4%7.0%
Male householder, no spouse:3631.6%5.4%
Female householder, no spouse:2622.8%12.7%
Householder living alone:3631.6%28.6%
65 years and over living alone:3429.8%11.8%
Average household size:3.17--2.53
Average family size:3.83----

Marital Status (99346 zip code)

Population 15 years and over#%US
Total:124----
Never married:5846.8%37.0%
Now married:5342.7%49.5%
Separated:54.0%1.5%
Widowed:86.5%2.6%
Divorced:8366.9%9.3%

School Enrollment (99346 zip code)

Population 3 years and over#%US
Enrolled in school:77----
Nursery school, preschool:00.0%5.8%
Kindergarten:1013.0%5.0%
Elementary school (grades 1-8):3748.1%40.5%
High school (grades 9-12):1620.8%21.4%
College or graduate school:1418.2%27.3%

Veterans & Disability (99346 zip code)

#%US
Civilian population 18 years and over:293----
Veterans:217.2%6.3%
Civilian noninstitutionalized population:372----
With a disability:379.9%13.4%
Under 18 with disability:513.5%5.8%
18 to 64 with disability:821.6%10.4%
65 and over with disability:2464.9%33.4%

Mobility (Residence 1 Year Ago) (99346 zip code)

Population 1 year and over#%US
Same house:29479.0%86.9%
Different house:7821.0%13.1%
Same county:45.1%7.0%
Different county:5975.6%3.2%
Different state:5570.5%2.5%
Abroad:1519.2%0.4%

Place of Birth (99346 zip code)

#%US
Native born:26270.4%86.2%
Foreign born:00.0%13.9%
Naturalized citizen:110--52.7%
Not a citizen:110--47.3%
Foreign-born by region:------
Europe:110--10.5%
Asia:0--31.3%
Africa:0--5.5%
Oceania:0--0.5%
Latin America:110--50.0%
Northern America:0--2.2%

Language Spoken at Home (99346 zip code)

Population 5 years and over#%US
Total:344----
English only:11533.4%78.3%
Language other than English:22966.6%21.5%
By language:------
Spanish:22966.6%13.3%
Other Indo-European languages:00.0%3.5%
Asian/Pacific Island languages:00.0%3.5%
Other languages:00.0%1.0%

Computers & Internet (99346 zip code)

Households%US
Households with a computer:114100.0%93.1%
Households with broadband internet:10995.6%89.4%