98592 ZIP Code — Union, WA

Mason County, Washington

ZIP code 98592 is located in Union, Washington, within Mason County. It covers approximately 17.68 square miles and serves a population of 1,848 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 360/564.

About ZIP code 98592

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $394,900. Owner-occupancy is high at 84%, well above the national average.

Median household income is $92,813. The poverty rate of 4% is below the national average. 69% 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. An above-average commute of 49 minutes suggests many residents work outside the immediate area. Remote work is prevalent — 33% of workers work from home.

Educational attainment is near the national average, with 41% of residents holding a bachelor's degree or higher.

Notable community characteristics include a notable veteran presence at 16% of civilians, above the national average of 7%.

Overall, ZIP code 98592 reflects a community defined by a strong veteran community, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

1,848

population

17.68

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

98592 ZIP code map

Cities in ZIP code 98592

Below are the cities the US Postal Service accepts for ZIP code 98592. Using any city not on this list may result in mail delivery delays.

City	Status
Union	Preferred

Nearby ZIP codes

98584 Shelton (6.1 mi) 98546 Grapeview (6.4 mi) 98588 Tahuya (8.7 mi) 98524 Allyn (9.7 mi) 98528 Belfair (10.3 mi) 98548 Hoodsport (10.7 mi) 98394 Vaughn (13.8 mi) 98555 Lilliwaup (15.2 mi) 98502 Olympia (15.5 mi) 98560 Matlock (16 mi) 98349 Lakebay (16 mi) 98351 Longbranch (16.5 mi)

Demographics updated 05/2026

Population
Total population	1,848
Population density	105 / sq mi
State FIPS	53
County FIPS	045

Geography
Land area	17.68 sq mi
Water area	3.93 sq mi
Latitude	47.3275
Longitude	-123.0721
Timezone	Pacific (PT)
Area code	360/564

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.7%	39.4%	31.7%
$50k – $100k	53.8%	34.8%	30.6%
$100k – $200k	8.9%	22.6%	27.1%
Over $200k	4.7%	3.2%	10.6%

Demographics & statistics

1,848

Population

105

People per sq mi

64.3

Median age

$92,813

Median household income

$50,842

Per capita income

$394,900

Median home value

Median monthly rent

83.7%

Home ownership

3.6%

Poverty rate

2.5%

Unemployment

1,000

Housing units

40.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

20–24

25–34

35–44

154

45–54

164

55–59

146

60–64

155

256

65–74

272

108

75–84

114

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	103	5.6%
18 and over	1,745	94.4%
65 and over	829	44.9%
Median age	64.3 years

Race & ethnicity

White 92.4%

Two or more races 6.3%

Hispanic or Latino 1.3%

Group	Count	%
White	1,730	92.4%
Two or more races	118	6.3%
Hispanic or Latino	25	1.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.7%	39.4%	31.7%
$50k – $100k	53.8%	34.8%	30.6%
$100k – $200k	8.9%	22.6%	27.1%
Over $200k	4.7%	3.2%	10.6%

Under $10k 4.2%

$10k–$15k 1.8%

$15k–$25k 3.3%

$25k–$35k 3.3%

$35k–$50k 10.5%

$50k–$75k 7.5%

$75k–$100k 21.0%

$100k–$150k 16.6%

$150k–$200k 26.5%

$200k+ 5.2%

Range	% of households
Under $10k	4.2%
$10k–$15k	1.8%
$15k–$25k	3.3%
$25k–$35k	3.3%
$35k–$50k	10.5%
$50k–$75k	7.5%
$75k–$100k	21.0%
$100k–$150k	16.6%
$150k–$200k	26.5%
$200k+	5.2%
Median income	$92,813

Housing

Home values

$50k–$100k 8.2%

$100k–$150k 3.2%

$150k–$200k 4.5%

$200k–$300k 7.6%

$300k–$500k 30.3%

$500k–$1M 43.4%

$1M+ 2.8%

Housing overview

Metric	Value
Median home value	$394,900
Median rent / month	$0
Owner occupied	83.7%
Renter occupied	16.3%
Vacant	25.5%
Single-family detached	87.2%
Large apartment buildings	0.0%
Mobile homes	12.8%
Median rooms	5.9
Avg household size (owned)	2.14

Year built

Era	%
2020 or later	0.0%
2010–2019	13.4%
2000–2009	10.2%
1990–1999	19.2%
1980–1989	8.5%
1970–1979	16.1%
1960–1969	10.2%
1950–1959	1.3%
1940–1949	19.3%
1939 or earlier	1.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	5.5%
2 bedrooms	37.3%
3 bedrooms	55.5%
4 bedrooms	1.7%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	14.3%
2 vehicles	59.4%
3 or more	26.3%

Heating fuel

Fuel type	%
Utility gas	14.5%
Electricity	61.7%
Propane / LP gas	9.8%
Fuel oil	2.2%
Wood	8.4%
Solar	1.8%

Households & families

Household type	Count	%
Married-couple family	690	81.4%
Cohabiting couple	18	2.1%
Male householder, no spouse	48	5.7%
Female householder, no spouse	92	10.8%
Households with children under 18	65	7.7%
Households with seniors (65+)	536	63.2%
Average household size	2.18

Marital status

Status	Male	Female
Never married	12.4%	7.5%
Married	82.0%	76.0%
Separated	0.0%	0.0%
Widowed	3.5%	12.6%
Divorced	2.1%	4.0%

Education

Less than 9th grade 0.9%

Some HS, no diploma 1.7%

HS graduate 16.6%

Some college, no degree 30.6%

Associate's degree 9.8%

Bachelor's degree 19.6%

Graduate / professional 20.9%

Metric	%
HS diploma or higher	97.4%
Bachelor's or higher	40.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	87	100.0%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 26.0%

Professional & management 20.5%

Finance & real estate 9.2%

Transportation & utilities 9.0%

Construction 8.7%

Agriculture & mining 7.6%

Arts, food & hospitality 6.1%

Manufacturing 5.2%

Retail trade 5.0%

Public administration 2.7%

Occupation

Category	%
Management, business & arts	49.8%
Service	6.4%
Sales & office	21.5%
Natural resources & construction	5.6%
Production & transportation	16.6%

Employment type

Type	%
Private sector	80.2%
Government	14.7%
Self-employed	0.0%
Unpaid family workers	5.2%

Commute

Method	%
Drive alone	64.7%
Carpool	0.0%
Public transit	0.0%
Walk	0.3%
Work from home	32.6%
Other means	2.4%
Avg commute (minutes)	48.5

Poverty

All people 3.6%

Under 18 years 0.0%

18 and over 3.8%

Married-couple families 2.3%

Female-led households 0.0%

Income support

Source	% of households
Social Security	68.6%
Retirement income	55.7%
Supplemental Security	2.6%
Cash public assistance	3.8%
Food stamps / SNAP	4.6%

Health indicators

Condition	%
Obesity	32.7%
High blood pressure	41.5%
High cholesterol	40.2%
Diabetes	12.7%
Heart disease	9.2%
Stroke	4.2%
Asthma	10.6%
Arthritis	35.1%
Kidney disease	3.9%
Pulmonary disease	8.7%
Cancer	9.9%

Behavior / access	%
Smoking	14.8%
Binge drinking	12.9%
No physical activity	19.8%
Less than 7 hrs sleep	29.7%
Depression	25.3%
Fair or poor health	16.2%
Poor mental health	13.5%
Poor physical health	12.6%
No health insurance	8.8%
Visited doctor (checkup)	75.5%
Visited dentist	65.0%
Cholesterol screening	92.3%
Teeth loss	10.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	280	16.0%

Disability	%
Any disability	19.2%
Under 18	0.0%
18–64 years	6.9%
65 and over	35.2%

Health insurance coverage

Type	%
Private insurance	69.3%
Public insurance	61.4%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,832	99.1%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,834	99.2%
Born in same state	1,834	99.2%
Born in different state	805	43.6%
Foreign born	0	0.0%
Naturalized citizen	14	0.8%
Not a US citizen	14	100.0%

Ancestry

Ancestry	Count	%
French	309	16.7%
Italian	295	16%

Ancestry	Count	%
Polish	111	6%
Arab	34	1.8%

Technology access

Metric	% of households
Computer access	45.9%
Internet access	97.6%

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

Frequently asked questions about ZIP code 98592

What city is ZIP code 98592 in?

ZIP code 98592 is primarily assigned to Union, Washington.

What county is ZIP code 98592 in?

ZIP code 98592 falls within Mason County, Washington.

Does ZIP code 98592 have an older population?

45% of residents in ZIP code 98592 are 65 or older, above the national average of ~17%.

Does ZIP code 98592 have a large retiree population?

69% of households in ZIP code 98592 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 98592 mostly owner-occupied?

84% of occupied units in ZIP code 98592 are owner-occupied, well above the national average.

Does ZIP code 98592 have a large veteran population?

16% of civilians in ZIP code 98592 are veterans, above the national average of ~7%.

What timezone is ZIP code 98592 in?

ZIP code 98592 observes the PST timezone.