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Lake Morton-Berrydale CDP, WA

ZIP Code 98042 — Lake Morton-Berrydale CDP, WA Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow AreaRemote Work Hub

Map, Quick Facts & Location

Quick Facts

Local time
Population
48,594
Median Income
$125,554
+67% vs US avg
Home Value
$613,000
+76% vs US avg
Median Rent
$1,961
+69% vs US avg
Median Age
40.0 yrs
+3% vs US avg
Area Code
Congress
Top Ancestry
EnglishGermanIrish
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Location
Coordinates
47.3677, -122.1170
Elevation
30 ft
Land Area
28.4 sq mi
Water Area
1.2 sq mi (4% water)

At a glance

Population
48,594
Density
N/A
Median income
$125,554
+67% vs US avg
Home value
$613,000
+76% vs US avg
Median rent
$1,961
+69% vs US avg
Timezone

Overview of ZIP Code 98042

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What to know about ZIP 98042

ZIP code 98042 covers Lake Morton-Berrydale, WA in King County with a population of about 48,594.

At a glance, the area shows median age of 40.0 (near the U.S. median).

It sits in telephone area code 253; U.S. House district WA-8; the SEATTLE - TACOMA media market.

Income and economy in Lake Morton-Berrydale, WA

Median household income in ZIP 98042 is about $125,554 — about 67% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 4.0%; unemployment rate near 3.0%; 33.7% of adults with a bachelor’s degree or higher (roughly in line with the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Healthcare, and Retail trade; about 15.2% of workers reporting work-from-home (roughly in line with the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 98042

Median home value is about $613,000 — about 76% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,961 (about 69% above the U.S. median rent ($1,163)), and owner-occupancy near 82.4% (about 17.0 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 98042 in Lake Morton-Berrydale, WA, a household would need roughly $169,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $3,938. That is about 35% above the local median household income ($125,554), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Lake Morton-Berrydale CDP, WA as Very High (composite score 99.7), which is among the highest nationally. The strongest component scores on US5 are flood (99.5) and wildfire (79.5). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Lake Morton-Berrydale CDP, WA show little to no average snow and around 40.1 inches of annual precipitation.

IRS migration statistics show a net inflow of about 2,610 for ZIP 98042 (Lake Morton-Berrydale CDP, WA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport SEA (10.6 miles (17.1 km)) · Green River College (4.6 miles (7.5 km)) · Wing Luke Museum Affiliated Area (18.6 miles (29.9 km)) · VA: Tahoma National Cemetery (1.7 miles (2.8 km))

Full lists and map pins are in the Infrastructure section below.