Census-designated place Oso is a census-designated place in Washington, in Snohomish County. A census-designated place is an unincorporated community that the Census Bureau defines for statistics; it has no city government of its own.
The Census Bureau does not publish a reliable median property tax bill for Oso. Census does not publish a median home value for this place.
| Measure | Oso | Washington | United States |
|---|---|---|---|
| Population | 400 ± 218 | 7,740,984 | 332,387,540 |
| Median annual property tax bill (homeowners) | Too imprecise to report (estimate $3,612, margin of error ± $2,047) | $4,361 ± $16 | $2,969 ± $3 |
| Median home value | Census does not publish this figure for this place | $519,800 ± $2,550 | $303,400 ± $362 |
| Median household income | $136,735 ± $30,902 | $94,952 ± $476 | $78,538 ± $176 |
| Property tax as a share of home value (calculated) | Census does not publish this figure for this place | 0.84% ± 0.01 points | 0.98% ± under 0.01 points |
| Homes lived in by their owners | Too imprecise to report (estimate 100.0%, margin of error ± 75.1 points) | 63.9% ± 0.3 points | 65.0% ± 0.3 points |
| Owner households headed by someone 65 or older | Too imprecise to report (estimate 14.6%, margin of error ± 29.7 points) | 31.0% ± 0.2 points | 32.6% ± 0.2 points |
| Owners spending 30% or more of income on housing costs | Too imprecise to report (estimate 15.6%, margin of error ± 43.7 points) | 24.0% ± 0.2 points | 22.2% ± 0.1 points |
How to read these numbers
- These are estimates from a survey, not a count. The American Community Survey asks a sample of households. The ± figure is the Census Bureau’s margin of error: the true value is very likely within that range of the estimate. Small places have large margins.
- “Too imprecise to report” means the margin of error is at least half of the estimate, so printing the number would suggest accuracy that does not exist. A “rough guide only” note means the margin is a quarter to a half of the estimate.
- Property tax bill and home value are medians for owner-occupied homes. Half of the homes are above the figure and half below. A median bill is not the rate set by a city or town; the bill combines taxes levied by every local government that serves the home, such as the school district and county.
- “Calculated” rows are worked out by Untax the Roof from the Census figures above them. They compare two medians, so they describe the place, not a particular household.
- Missing is not zero. Where the Census Bureau publishes no figure, this page says so.
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2019–2023: tables B25103 (real estate taxes), B25077 (home value), B19013 (household income), B01003 (population), B25003 (owners and renters), B25007 (age of householder), B25091 (housing costs as a share of income); see the Census ACS data page.
If property taxes go unpaid in Washington
How it works. County superior-court tax foreclosure followed by treasurer public auction and tax deed
Excess sale money. RCW 84.64.080 directs excess over minimum bid, after recorded water-sewer liens and statutory amounts, to record owner upon application. If no application is made within 3 years after sale, excess is deposited in county current expense fund and claims are extinguished
These rules are set by Washington, not by Oso, so this section is the same for every place in the state. Last verified 2026-09-25. See the full Washington entry with statute links.