Cathlamet, Washington Demographics & Population 2026
During the 2020–2024 ACS period, Cathlamet, Washington had a total population of 616, the 447th largest town in Washington, with a median household income of $70,250, which is 28% lower than the state average. The poverty rate is 12.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Cathlamet Quick Facts
How Cathlamet Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 569 | 616 | +8.3% |
| Median household income | $57,750 | $70,250 | +21.6% |
| Median home value | $364,900 | $387,500 | +6.2% |
How Cathlamet Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 56 | National average: 61
Education
Educational Attainment (Adults 25+)
Cathlamet Rankings in Washington
Explore Washington Rankings
Other Cities in Wahkiakum County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Puget Island | 1,008 | $49,438 | 25.0% | $484,800 |
| East Cathlamet | 934 | $101,221 | 22.8% | $400,000 |
| Rosburg | 528 | N/A | 13.2% | $231,000 |
| Skamokawa Valley | 352 | N/A | 29.3% | $259,200 |
| Lower Elochoman | 271 | N/A | 0.0% | $464,500 |
| Grays River | 195 | $91,250 | 15.9% | N/A |
| Deep River | 147 | $62,604 | 15.7% | $442,100 |
| Upper Elochoman | 49 | $55,714 | 12.2% | $368,800 |
| Altoona | 43 | N/A | 0.0% | N/A |
Cities Similar to Cathlamet
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Port Gamble Tribal Community | 624 | $70,000 | $218,200 | 13.2% | 20.0% |
| Nisqually Indian Community | 628 | $73,750 | $310,000 | 10.9% | 17.5% |
| Pateros | 583 | $69,091 | $278,800 | 16.4% | 19.6% |
| Kendall | 657 | N/A | $338,900 | 19.6% | 23.0% |
| Sprague | 583 | $67,857 | $164,000 | 9.0% | 10.0% |
A note before these figures: with a population of 616, Cathlamet's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Cathlamet is a small community located in Washington, within Wahkiakum County. The total population is 616. It ranks as the 447th most populous out of 628 Census-designated places in Washington.
Age Demographics
The median age in Cathlamet is 59.4 years. This is 55% higher than the state median of 38.3 years. Only 8.3% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Cathlamet is $70,250. This is 28% lower than the state median of $98,141. It is also 13% lower than the national median of $80,734. The poverty rate stands at 12.7%. This is 28% higher than the state poverty rate of 9.9%. The unemployment rate is 4.3%. This is 16% lower than the state rate of 5.1%. The median home value is $387,500. Housing costs are 31% lower than the state median of $564,600. The home-value-to-income ratio is 5.5x. 71.1% of occupied housing units are owner-occupied. This homeownership rate is 11% higher than the state average of 63.8%.
Race & Ethnicity
The largest racial or ethnic group in Cathlamet is White (non-Hispanic), making up 84.1% of the population. Hispanic or Latino residents account for 9.4%. The Asian population (0.8%) is well below the state average of 9.7%.
Education
26.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 33% lower than the state rate of 39.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.9%.
Data Sources & Methodology
All demographic data for Cathlamet, Washington is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Washington state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 628 Census-designated places in Washington. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Cathlamet, Washington?
Cathlamet, Washington has a population of 616 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Cathlamet, WA?
The median household income in Cathlamet is $70,250, which is 13% lower than the national median of $80,734.
What is the poverty rate in Cathlamet, WA?
The poverty rate in Cathlamet is 12.7%. This means approximately 76 residents live below the federal poverty line.
What is the racial makeup of Cathlamet, Washington?
Cathlamet's population is 84.1% White, 0.0% Black, 9.4% Hispanic/Latino, and 0.8% Asian.
What is the median home value in Cathlamet, WA?
The median home value in Cathlamet is $387,500. The home-value-to-income ratio is 5.5x.
How educated is Cathlamet, Washington?
26.6% of adults (25+) in Cathlamet hold a bachelor's degree or higher, and 14.9% hold a graduate or professional degree.