LatestCoverageAll 50 states, D.C. and five territories now on the ledger|NewPuerto Rico's 78 municipios ledgered, municipio by municipio|FeatureAssessment appeal workspace — build a filing package from your own evidence|FeatureLiving reports — versioned, re-runnable, exportable|DevelopersMetered REST gateway · issued keys · signed webhooks|Live market readings · refreshed on loadAlbuquerque · NMMedian List$360K+1.3%|Austin · TXMedian List$290K-3.5%|Baltimore · MDMedian List$265K+1.1%|Bernalillo County · NMMedian List$364K+2.7%|Bexar County · TXMedian List$303K+3.7%|Boston · MAMedian List$875K+6.1%|Charlotte · NCMedian List$402K+1.2%|Chicago · ILMedian List$410K+7.8%|Clark County · NVMedian List$447K+0.1%|Columbus · OHMedian List$300K+0.7%|Cook County · ILMedian List$348K+5.1%|Dallas · TXMedian List$412K+3.4%|Davidson County · TNMedian List$465K-1.1%|Denver · COMedian List$618K+5.0%|Detroit · MIMedian List$321K-2.7%|Duval County · FLMedian List$312K-1.4%|El Paso · TXMedian List$301K+11.1%|Fort Worth · TXMedian List$330K-1.5%|Franklin County · OHMedian List$301K+0.1%|Fresno · CAMedian List$375K+2.1%|Harris County · TXMedian List$327K+0.6%|Houston · TXMedian List$325K-2.3%|Indianapolis · INMedian List$250K+2.7%|Jackson County · MOMedian List$275K+7.0%|Jacksonville · FLMedian List$312K-1.4%|Jefferson County · KYMedian List$248K-4.3%|Kansas City · MOMedian List$310K+3.1%|King County · WAMedian List$850K-4.0%|Las Vegas · NVMedian List$450K+1.1%|Los Angeles · CAMedian List$1M-1.7%|Louisville · KYMedian List$280K+1.8%|Maricopa County · AZMedian List$458K-0.4%|Marion County · INMedian List$259K+3.7%|Mecklenburg County · NCMedian List$407K-5.3%|Memphis · TNMedian List$209K+4.7%|Mesa · AZMedian List$490K-0.9%|Milwaukee · WIMedian List$245K+2.7%|Multnomah County · ORMedian List$518K-1.2%|Nashville · TNMedian List$495K+3.1%|New York · NYMedian List$885K+8.7%|Oklahoma City · OKMedian List$275K-0.4%|Oklahoma County · OKMedian List$259K-0.7%|Philadelphia · PAMedian List$279K+4.6%|Phoenix · AZMedian List$452K+0.5%|Pima County · AZMedian List$373K+0.9%|Portland · ORMedian List$518K-2.2%|Sacramento · CAMedian List$510K+4.0%|San Antonio · TXMedian List$257K-2.9%|San Diego · CAMedian List$910K+1.1%|San Francisco · CAMedian List$1.6M+14.9%|San Jose · CAMedian List$1.6M-5.9%|Santa Clara County · CAMedian List$1.3M+0.1%|Seattle · WAMedian List$844K+1.2%|Shelby County · TNMedian List$250K-2.8%|Suffolk County · MAMedian List$857K+7.3%|Tarrant County · TXMedian List$385K-1.2%|Travis County · TXMedian List$497K-5.3%|Tucson · AZMedian List$324K-0.9%|Wayne County · MIMedian List$160K0.0%|LatestCoverageAll 50 states, D.C. and five territories now on the ledger|NewPuerto Rico's 78 municipios ledgered, municipio by municipio|FeatureAssessment appeal workspace — build a filing package from your own evidence|FeatureLiving reports — versioned, re-runnable, exportable|DevelopersMetered REST gateway · issued keys · signed webhooks|Live market readings · refreshed on loadAlbuquerque · NMMedian List$360K+1.3%|Austin · TXMedian List$290K-3.5%|Baltimore · MDMedian List$265K+1.1%|Bernalillo County · NMMedian List$364K+2.7%|Bexar County · TXMedian List$303K+3.7%|Boston · MAMedian List$875K+6.1%|Charlotte · NCMedian List$402K+1.2%|Chicago · ILMedian List$410K+7.8%|Clark County · NVMedian List$447K+0.1%|Columbus · OHMedian List$300K+0.7%|Cook County · ILMedian List$348K+5.1%|Dallas · TXMedian List$412K+3.4%|Davidson County · TNMedian List$465K-1.1%|Denver · COMedian List$618K+5.0%|Detroit · MIMedian List$321K-2.7%|Duval County · FLMedian List$312K-1.4%|El Paso · TXMedian List$301K+11.1%|Fort Worth · TXMedian List$330K-1.5%|Franklin County · OHMedian List$301K+0.1%|Fresno · CAMedian List$375K+2.1%|Harris County · TXMedian List$327K+0.6%|Houston · TXMedian List$325K-2.3%|Indianapolis · INMedian List$250K+2.7%|Jackson County · MOMedian List$275K+7.0%|Jacksonville · FLMedian List$312K-1.4%|Jefferson County · KYMedian List$248K-4.3%|Kansas City · MOMedian List$310K+3.1%|King County · WAMedian List$850K-4.0%|Las Vegas · NVMedian List$450K+1.1%|Los Angeles · CAMedian List$1M-1.7%|Louisville · KYMedian List$280K+1.8%|Maricopa County · AZMedian List$458K-0.4%|Marion County · INMedian List$259K+3.7%|Mecklenburg County · NCMedian List$407K-5.3%|Memphis · TNMedian List$209K+4.7%|Mesa · AZMedian List$490K-0.9%|Milwaukee · WIMedian List$245K+2.7%|Multnomah County · ORMedian List$518K-1.2%|Nashville · TNMedian List$495K+3.1%|New York · NYMedian List$885K+8.7%|Oklahoma City · OKMedian List$275K-0.4%|Oklahoma County · OKMedian List$259K-0.7%|Philadelphia · PAMedian List$279K+4.6%|Phoenix · AZMedian List$452K+0.5%|Pima County · AZMedian List$373K+0.9%|Portland · ORMedian List$518K-2.2%|Sacramento · CAMedian List$510K+4.0%|San Antonio · TXMedian List$257K-2.9%|San Diego · CAMedian List$910K+1.1%|San Francisco · CAMedian List$1.6M+14.9%|San Jose · CAMedian List$1.6M-5.9%|Santa Clara County · CAMedian List$1.3M+0.1%|Seattle · WAMedian List$844K+1.2%|Shelby County · TNMedian List$250K-2.8%|Suffolk County · MAMedian List$857K+7.3%|Tarrant County · TXMedian List$385K-1.2%|Travis County · TXMedian List$497K-5.3%|Tucson · AZMedian List$324K-0.9%|Wayne County · MIMedian List$160K0.0%|
Property-class scope

The story of this market

The typical home in ZIP 98378 sells for about $645,132, or $235 per square foot.

Prices are up +3.2% from a year ago, so sellers still have some momentum. Homes take about 42 days to sell. HUD's fair market rent for a two-bedroom is $1,850 a month.

ZIP market report · consumer edition · quarterly refresh
Track this ZIP

ZIP 98378

Mason County →refreshed Oct 1, 20262 cycles retainednext refresh Oct 31, 2026
Market mood · cautiously optimistic

The housing market in 98378 remains stable with moderate price appreciation and low inventory levels. Demand is supported by local families and commuters, though limited supply continues to constrain sales volume. Market conditions are expected to remain steady in the near term.

Who this ZIP fits

This ZIP is well-suited for families and commuters seeking a quieter residential environment with access to regional amenities.

Parent geography
Median sale price
$645,132
+3.2% year over year
Divergent · 51.8% from published 2024 series — validation case open, publishes pending verdict
Days on market
42 days
Active listings
18
Listings with price cuts
12%
share of active listings
Sale-to-list ratio
98.5%
of asking price
ZIP Market ScoreZIP-SCORE-1.3 · 4/4 sections graded
74
Composite · average of graded sections
Computed only from this report's published readings — sections without data are excluded, never estimated.
66
Growth/100

Median prices moved up 3.2% year over year.

68
Liquidity/100

Homes spend a median of 42 days on market with 4.5 months of supply — a fast-moving market.

75
Momentum/100

12% of listings have cut prices · homes sell at 98.5% of asking — demand is running ahead of supply.

88
Safety & stability/100

no recorded foreclosure-ledger notices (0.0 per 10,000 residents) · unemployment 4.2% · poverty 7.5% — a stable, low-distress profile.

Median price · ten-year history

Researched annual trajectory for this ZIP, from published historical series

2015201620172018201920202021202220232024202520272029$150,000$300,000$450,000$600,000$750,000

Solid: researched ten-year history · dotted: 1 / 3 / 5-year projection extended from the historical 8.1%/yr trend — a deterministic estimate, not a published forecast or guarantee.

Property tax · ten-year history

Median annual property tax paid on this ZIP's residential parcels

2015201620172018201920202021202220232024202520272029$1,500$3,000$4,500$6,000$7,500

Solid: researched ten-year history · dotted: 1 / 3 / 5-year projection extended from the historical 8.0%/yr trend — a deterministic estimate, not a published forecast or guarantee.

Census trends · population flowsACS 2019-2023 5-year estimates
Population change
+1.2%

versus the prior ACS vintage

Net migration
+150 people

net influx — more people moved in than out

Population base
3,120

ZCTA 98378, Mason County WA

Area context
Crime & safety

Crime rates in this area are generally reported as lower than the regional average, with property crime being the primary concern.

Schools & education

Schools serving this ZIP are part of the local district and generally maintain average performance ratings compared to state benchmarks.

Environmental & hazard

The area is subject to standard regional wildfire and wind risk protocols; flood risk is minimal in most residential zones.

Growth & development

Economic momentum is driven by proximity to regional employment hubs and steady residential development.

Taxation

Property taxes are assessed at the county level based on fair market value, with standard exemptions available for primary residences.

Transportation & commute

Residents primarily commute by car to nearby employment centers, with limited public transit options available.

Recreation & amenities

The area features access to local parks, community trails, and proximity to regional water-based recreation.

Rental market

The rental market is characterized by low vacancy rates and steady demand, with limited short-term rental inventory.

Economy & employers

The local economy is supported by small businesses, regional services, and proximity to larger employment centers in the county.

Transportation & infrastructure

Transportation is primarily highway-dependent, with major corridors providing access to regional employment hubs.

Development pipeline

Development is focused on maintaining residential character while allowing for modest growth in housing stock.

County appraisal district

The county appraisal district conducts annual assessments to determine property values for tax purposes.

Special districts

Parcels are subject to local school district taxes and county-level utility and emergency service assessments.

Insurance & hazard market

Property insurance premiums are stable, reflecting moderate hazard exposure in the region.

Migration & population flows

The state continues to see positive net domestic migration, driven by regional economic growth.

Foreclosure doctrine

The state follows a non-judicial foreclosure process with specific notice requirements for homeowners.

Disclosure doctrine

Sellers are required to provide a comprehensive disclosure statement regarding the condition of the property.

Discovery profileACS 2019-2023 5-year estimates
Census profile · ZCTA 98378, Mason County WA
Population
3,120
Median age
44.5 yrs
Owner-occupancy
82%
Median home value
$425,000
Median gross rent
$1,450
Median household income
$78,450
Median year built
1992
Vacancy rate
4.5%
Renter share
18%
Owner cost burden
22%
Renter cost burden
35%
Population change
+1.2%
Net migration
150
Work-from-home share
15.5%
Mean commute
32 min
Bachelor's or higher
28%
Unemployment
4.2%
Poverty rate
7.5%
Avg household size
2.4
White
88%
Hispanic
5%
Other
7%

Data retrieved from data.census.gov ZCTA-level tables.

Public schools with an address here · 2

Public schools whose reported address is in this area (NCES). Not attendance boundaries — schools that serve residents may sit outside it. Check the district's address locator for assignment.

Local ElementaryElementary6/10Local ISDServes the primary residential area.
Local High SchoolHigh5/10Local ISDProvides secondary education for the ZIP.
School districts
Local ISDBPrimary district serving the area with stable performance.
Utilities & services
InternetRegional ProviderBroadband availability varies by location.
ElectricLocal UtilityStandard service provider for the region.
Water/SewerMunicipal/DistrictPublic utility services provided.
Major employers & industries
County GovernmentPublic SectorMajor regional employer.
Local Retail/ServicesServicesPrimary local employment base.
Amenities & attractions2 retained amenities · 1 development on the horizon
Inside this ZIP
Mason County Park
Park

Provides local hiking trails and picnic areas.

Local Golf Course
Recreation

Serves the local community with 18-hole facilities.

On the horizon · announced & under construction
Residential Expansion ProjectResidentialApprovedSmall-scale residential development planned for the coming year.
Sources · 2 cited

Key-figure check: median price diverges 34.1% from the nearest retained anchor (published ten-year series (2024)) — beyond the 12.5% tolerance; an automated validation case is open and the value publishes pending its verdict. Research outlier held out — this pass returned a median of $425,000 (34.1% off the retained reading), contradicting every independent anchor; the prior reading stands pending corroboration. Validation: the flagged $425,000 (-34.1% vs the published ten-year series (2024)) could not be independently corroborated and was reverted to the prior cycle value pending review; the case is under review in the Command Center.