PlainZIP

Union, WA · standard

ZIP Code 98592

Mason County, Washington - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,764
39/sq mi
$138,370
Median income
$558,400
Median home value
48.2%
Bachelor's or higher

The verdict

Union pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 5%
household income, US ZIPs
Top 11%
home value, US ZIPs
39
people per sq mi
83%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 98592 against every reporting US ZIP.

ZIP code 98592 covers 45.7 square miles in Union, Mason County, Washington (a standard USPS delivery area), with a modest 1,764 residents on file, a density of 39 people per square mile, in the Los Angeles time zone.

ZIP 98592 skews affluent, with a median household income of $138,370 (52% above the Washington average), while per-capita income is $61,225. Local economic indicators show a 0.9% poverty rate alongside 3.2% unemployment. On housing, the median home value is $558,400 (9% above the state average) with median rent at $3,501 per month, and 83.3% of occupied units are owner-occupied.

A solid share of residents have a four-year degree: 48.2% of adults hold a bachelor's degree or higher, the median age is 64.7, and the average commute is -. We also surface 3 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Mason County, so you can benchmark 98592 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 98592

Top 5 sectors by establishment count in Union, WA

Which industries have the most business establishments in ZIP 98592.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 98592, Union, WA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,764

Population

45.7

Area (sq mi)

39

People / sq mi

Los Angeles

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 98592?

64.7

Median Age

52.0%

Male

48.0%

Female

3.6%

Foreign-Born

White 91.5%
African American 0.0%
Asian 3.8%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 4.8%
Hispanic or Latino 1.4%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$138,370

Median Household Income

+52% vs state

$61,225

Per Capita Income

0.9%

Poverty Rate

3.2%

Unemployment Rate

How ZIP 98592 ranks nationally

Union, WA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$138,370 Top 5% higher than 95% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 73.0%
Bachelor's Degree or Higher 48.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,118

Total Housing Units

922

Occupied Units

196

Vacant Units

2.23

Avg Household Size

Occupancy Type

Owner 83.3%
Renter 16.7%

$558,400

Median Home Value

+9% vs state

$3,501

Median Rent

1987

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-4.8%

YoY Change (2024)

327

HPI Index (2000 = 100)

+227%

Total Change Since 2000

Home values in ZIP 98592 have decreased 4.8% over the past year (2024). Since 2000, this ZIP has seen +227% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.5% 233
2021 +12.1% 261
2022 +15.9% 302
2023 +13.5% 343
2024 -4.8% 327

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 38 business establishments in ZIP 98592, employing approximately 432 people with a combined annual payroll of $20,656,000.

38

Businesses

432

Employees

$20.7M

Annual Payroll

5

Industry Sectors

Industry Establishments % of Total
Construction 11 28.9%
Accommodation and food services 6 15.8%
Professional, scientific, and technical services 4 10.5%
Retail trade 3 7.9%
Health care and social assistance 3 7.9%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 98592 vs 98546 →

ZIP 98592 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 98592 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 98592 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 98592 ranks the highest of 4 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
98546 Grapeview, WA 2,909 6.8 mi
98584 Shelton, WA 36,630 6.8 mi
98588 Tahuya, WA 1,829 8.6 mi

More ZIP Codes in Mason County

98584 standard
Shelton, WA
Pop: 36,630
98528 standard
Belfair, WA
Pop: 9,983
98524 standard
Allyn, WA
Pop: 3,232
98546 standard
Grapeview, WA
Pop: 2,909
98548 standard
Hoodsport, WA
Pop: 2,193
98588 standard
Tahuya, WA
Pop: 1,829

Related Areas

Mason County Union, WA Washington

Frequently Asked Questions

What county is ZIP code 98592 in? ▼
ZIP code 98592 (Union) is located in Mason County, Washington. Mason County contains multiple ZIP codes, see the full list at /counties/mason-wa.
What is the population of ZIP code 98592? ▼
ZIP code 98592 in Union, WA has a population of 1,764 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 98592? ▼
The median household income in ZIP 98592 is $138,370, which is 81% above the national average of $76,288.
What is the average home value in ZIP 98592? ▼
The median home value in ZIP 98592 is $558,400, which is 101% above the national average of $278,155.
What is the demographic makeup of ZIP 98592? ▼
The largest racial group in ZIP 98592 is White at 91.5%. Hispanic or Latino residents make up 1.4% of the population.
How many businesses are in ZIP code 98592? ▼
ZIP code 98592 has 38 business establishments employing approximately 432 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 98592? ▼
The top industries by establishment count in ZIP 98592 are: Construction (11), Accommodation and food services (6), Professional, scientific, and technical services (4). There are 5 industry sectors represented in total.
How have home values changed in ZIP code 98592? ▼
According to the FHFA House Price Index, home values in ZIP 98592 decreased by 4.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 227%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 98592? ▼
In ZIP code 98592, 73.0% of residents aged 25+ have a high school diploma or higher, and 48.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 98592? ▼
In ZIP code 98592, approximately 83.3% of occupied housing units are owner-occupied and 16.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 98592? ▼
The poverty rate in ZIP code 98592 is 0.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.