ZIP 98538 vs ZIP 98581

Source:

Curtis, WA — Ryderwood, WA

This side-by-side compares ZIP 98538 (Curtis, WA) and ZIP 98581 (Ryderwood, WA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 98538 has a population of 304 at 1 people per square mile, while ZIP 98581 has 424 at 6 per square mile. That difference in population size and density alone reshapes how every other metric should be interpreted — a higher-income ZIP with 1,200 residents behaves very differently from one with 45,000.

On income and education, ZIP 98538 reports a median household income of $105,000 against $43,009 in ZIP 98581, with per-capita income of $56,343 vs $32,853. The share of adults holding a bachelor's degree or higher is 9.0% in 98538 and 15.8% in 98581. Poverty rate reads 10.2% vs 11.2%, and unemployment 2.3% vs 0.0% — these four fields alone drive most of the difference in the scorecard grades you will see for each ZIP.

Housing separates these two ZIPs further: median home value sits at $482,100 in 98538 versus $232,500 in 98581, with median rent of and per month respectively. Homeownership rate is 84.9% vs 95.6%. When reading the comparison table below, focus on paired metrics rather than single winners — a ZIP with lower home values and lower income is not strictly "worse" if rent-to-income ratios and commute times land in the same zone. Every value is pulled from the exact same ACS table so the two columns are genuinely comparable.

Compare different ZIP codes:

vs
Metric
98538
Curtis, WA
98581
Ryderwood, WA
Population 304 424
Median Household Income $105,000 $43,009
Per Capita Income $56,343 $32,853
Median Age 41.2 72.1
Bachelor's Degree or Higher 9.0% 15.8%
Poverty Rate 10.2% 11.2%
Unemployment Rate 2.3% 0.0%
Median Home Value $482,100 $232,500
Median Rent (monthly)
Homeownership Rate 84.9% 95.6%
Population Density (per sq mi) 1 6

Values highlighted in green indicate the better metric where applicable. Source: U.S. Census Bureau ACS 2023.

Full Profile
98538
Curtis, WA
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Full Profile
98581
Ryderwood, WA
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What are common questions about this comparison?

How do ZIP codes 98538 and 98581 compare?
ZIP 98538 (Curtis, WA) has a population of 304 and a median household income of $105,000. ZIP 98581 (Ryderwood, WA) has a population of 424 and a median household income of $43,009.
Which ZIP code has higher income, 98538 or 98581?
ZIP 98538 (Curtis, WA) has a higher median household income of $105,000 compared to $43,009 for ZIP 98581.
How do I compare two ZIP codes on PlainZIP?
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All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Data sourced from official U.S. Census ACS and HUD-USPS ZIP crosswalk data. See our methodology for details. Retrieved and formatted by PlainZIP Editorial.