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Area data

Plymouth, WA — ZIP 99346

Population: 198 (Census ACS)

The median home value in ZIP 99346 (Plymouth, WA) is $209,200. FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively Moderate, with icestorm, winterweather, coldwave the top-rated hazards. Cost of living is 7.0% above the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

$209,200

Median home value

Relatively Moderate

Hazard risk (county)

Home values & appreciation

Median home value
$209,200
House Price Index (state)
596.1 (-1.0% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Market activity

Active listings
1

Source: recent area sales and market data (ZIP-level)

Rents

Studio fair-market rent
$1,094/mo
1BR fair-market rent
$1,230/mo
2BR fair-market rent
$1,487/mo
3BR fair-market rent
$2,051/mo
4BR fair-market rent
$2,341/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (Above Average)
107.0 (100 = US avg)
Electricity rate (state-level)
13.1¢/kWh
Natural gas rate (state-level)
$17.60/MCF
30-year mortgage rate (national)
7.40%
15-year mortgage rate (national)
6.73%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively Moderate
Top hazards (county)
iceStorm, winterWeather, coldWave, earthquake, heatWave
Notable hazard ratings (county)
hail: Relatively Low · coldWave: Relatively Moderate · heatWave: Relatively Moderate · iceStorm: Relatively High · wildfire: Relatively Moderate · landslide: Relatively Low
Wildfire risk to homes (county)
Higher than 94% of US counties
Buildings in wildfire direct-exposure zone
24.3%
Radon potential (county)
Moderate radon potential — EPA Zone 2 of 3
EPA Superfund (NPL) sites within 5 mi
None
Nearest Superfund site
Umatilla Army Depot (Lagoons) (6.9 mi)
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature
54.0°F
Average high
66.0°F
Average low
42.0°F
Annual precipitation
8.6 in
Annual snowfall
3.7 in
USDA plant hardiness zone
7b (extreme annual low 5 to 10°F)

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating
Good
Median AQI (annual)
36
Days with Good air quality
293
Days with Moderate air quality
70
Highest AQI recorded (year)
113

Source: EPA air quality data (nearest monitoring station, annual)

Amenities

National parks within ~60 mi
2
Nearest national park
Whitman Mission National Historic Site (46 mi)
National parks include
Whitman Mission National Historic Site, Ice Age Floods National Geologic Trail
Airports within 30 mi
11
Nearest airport
Hermiston Municipal Airport (HES) (10 mi)
Nearest major airport
Tri Cities Airport (PSC) (27 mi)
Hospitals nearby (~15 mi)
8
Hospitals include
ST ANTHONY HOSPITAL, GOOD SHEPHERD MEDICAL CENTER, TRIOS HEALTH
Avg hospital rating (CMS)
2.8 / 5
Best hospital rating nearby (CMS)
4.0 / 5
Solar radiation rating
Fair (4.3 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Housing stock

Median year housing built
1,998
Housing built before 1970
8.0%
Housing built 2000 or later
45.3%
Median annual property tax
$460
Households with broadband internet
45.3%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
86,994
Average weekly wage
$1,385
Top industries (by employment)
Health Care, Administrative Services, Professional Services
Annual residential building permits (county)
1,663

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is the median home value in ZIP 99346?
$209,200.
What is typical rent in ZIP 99346?
2-bedroom fair-market rent: $1,487/month (HUD FMR — a 40th-percentile regulatory reference, not market-observed).
What is the natural-hazard risk in ZIP 99346?
Overall risk: Relatively Moderate (FEMA NRI, county-level). Top hazards: iceStorm, winterWeather, coldWave, earthquake, heatWave.
What is the wildfire risk in ZIP 99346?
Risk to homes is higher than 94% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in ZIP 99346?
Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near ZIP 99346?
No current or proposed National Priorities List sites within 5 miles (EPA).
What is the air quality in ZIP 99346?
Good. Median AQI: 36. (EPA AQI).
What is the cost of living in ZIP 99346?
Regional Price Parity: 107.0 (100 = US average) (Above Average) (BEA RPP, metro/state-level).

Nearby ZIP codes

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Data last updated

Most recent source refresh: Oct 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents