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Area data

Dayton, WA — ZIP 99328

Population: 3,646 (Census ACS)

The typical home value in ZIP 99328 (Dayton, WA) is $273,490 — up 1.5% over the past year. Homes sell for a median $309,909 after a median 65 days on market. 4 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Very Low. 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

$273,490

Typical home value

+1.5%

1-year change

65

Median days on market

Very Low

Hazard risk (county)

Home values & appreciation

Typical home value
$273,490
1-year appreciation
+1.5%
3-year appreciation
+6.1%
5-year appreciation
+13.9%
10-year appreciation
+79.4%
Peak value since 2000 (May 2025)
$274,030
House Price Index (state)
596.1 (-1.0% YoY)

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

Market activity

Median sale price
$309,909
Median list price
$319,234
Median price per sqft
$162
1-year sale-price change
-0.0%
Median days on market
65 days
Homes sold (recent period)
11
For-sale inventory
40
Sale-to-list ratio
87.7%
Active listings
34
New listings (monthly)
9

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

Rents

Studio fair-market rent
$829/mo
1BR fair-market rent
$1,093/mo
2BR fair-market rent
$1,190/mo
3BR fair-market rent
$1,648/mo
4BR fair-market rent
$1,989/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)
7.18%
15-year mortgage rate (national)
6.57%

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

Schools

Total schools
4
Elementary schools
1
Middle schools
1
High schools
2
Avg student-teacher ratio
13.1 : 1
Schools include
Dayton Elementary School, Dayton High School, Dayton Middle School, Dayton School District Alternative Program

Source: NCES school directory, 2024-25 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county)
Very Low
Notable hazard ratings (county)
ice storm: Relatively Low · wildfire: Relatively Low · avalanche: Relatively Low · landslide: Relatively Low
Wildfire risk to homes (county)
Higher than 90% of US counties
Buildings in wildfire direct-exposure zone
51.4%
Radon potential (county)
Moderate radon potential — EPA Zone 2 of 3
EPA Superfund (NPL) sites within 5 mi
None
EPA recommends radon testing for every home regardless of zone.

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

Climate (30-year normals)

Annual precipitation
56.8 in
USDA plant hardiness zone
7a (extreme annual low 0 to 5°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
330
Days with Moderate air quality
35
Highest AQI recorded (year)
94

Source: EPA annual air quality index (county-level)

Amenities

National parks within ~60 mi
2
Nearest national park
Whitman Mission National Historic Site (35 mi)
National parks include
Whitman Mission National Historic Site, Ice Age Floods National Geologic Trail
Airports within 30 mi
10
Nearest airport
Touchet Valley Airport (10 mi)
Nearest major airport
Walla Walla Regional Airport (ALW) (26 mi)
Hospitals in or near this ZIP
1
Hospitals include
DAYTON GENERAL HOSPITAL
Solar radiation rating
Fair (4.2 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data (same ZIP, else within ~40 mi) · DOE/NREL (proximity-based)

Migration

Net migration (county)
+24 tax filers

Source: IRS SOI county-to-county migration (county-level; published with a multi-year lag)

Housing stock

Median year housing built
1951
Housing built before 1970
65.7%
Housing built 2000 or later
15.3%
Median annual property tax
$2,273
Households with broadband internet
50.3%

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

Employment & development

Top industries (by employment)
Utilities, Agriculture, Construction
Annual residential building permits (county)
5

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

How it compares

ZIP 99328State medianUS median
Typical home value$273,490$494,748$285,053
Median sale price$309,909$536,592$319,906
Median days on market65 days33 days48 days
Median annual property tax$2,273$3,381$2,006

State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.

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

Common questions

What is the typical home value in ZIP 99328?
$273,490.
What is the median sale price in ZIP 99328?
$309,909.
How long do homes take to sell in ZIP 99328?
Median days on market: 65 days.
What is typical rent in ZIP 99328?
2-bedroom fair-market rent: $1,190/month (HUD FMR — a 40th-percentile regulatory reference, not market-observed).
What is the natural-hazard risk in ZIP 99328?
Overall risk: Very Low (FEMA NRI, county-level).
What is the wildfire risk in ZIP 99328?
Risk to homes is higher than 90% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in ZIP 99328?
Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near ZIP 99328?
No current or proposed National Priorities List sites within 5 miles (EPA).
How many schools serve ZIP 99328?
4 schools (1 elementary, 1 middle, 2 high) (NCES, 2024-25).
What is the air quality in ZIP 99328?
Good. Median AQI: 36. (EPA AQI).
What is the cost of living in ZIP 99328?
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: Nov 2026. See all data sources →

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