Guides ยท Updated August 30, 2026
Washington Sex Offender Registry: How to Search
Search Washington's official WASOR sex offender registry by name, address, or ZIP, confirm listing details, and understand what a blank result means.
Start with the official Washington sex offender registry search, known as WASOR and run by the Washington Association of Sheriffs and Police Chiefs. You can search by county, city, ZIP code, last name, or an address by hundred block. The National Sex Offender Public Website (NSOPW) is another official registry resource to check.
A blank WASOR result is not a clearance. Washington publishes level II and III registrants, plus level I registrants who are out of compliance with registration requirements or lack a fixed residence. Confirm the name, location, and listing details before treating a result as a match.
Which registry search fits what you know
Washington handles this search across a few official tools. Match what you already have to the right one below: a name, an address, a question about county sheriff resources, or a tie to another state.
| What you're trying to do | Where to search | What it's for |
|---|---|---|
| You have a name to check | Washington Sex Offender Public Registry (wasor.org) | Run by WASPC. Searches by last name, city, county, zip code, or address by hundred block. |
| You only have an address or ZIP code | Same statewide WASOR search | Takes a zip code, city, county, or hundred-block address, no name required. |
| You want county-specific registry information | Your local county sheriff's site | For King County, Federal Way directs readers to the King County Sheriff's sex offender registration page. |
| The person may have ties to another state | National Sex Offender Public Website (nsopw.gov) | Listed by WASPC as the separate national search alongside Washington's registry. |
How to search by name or area
The fastest path is Washington's own registry search, which accepts more than a full name. State law requires the statewide site to let citizens "search for registered sex offenders within the state of Washington by county, city, zip code, last name, and address by hundred block," so you can search a neighborhood even when you only have a rough location, not a name.
If you have a full name, start there and narrow by city or zip code when results overlap. If you only have an address or a general area, search by zip code, city, or the address's hundred block instead of guessing at a name.
What a Washington listing actually shows
A published listing includes far more than a photo. Washington's statewide site posts level 2 and level 3 registered sex offenders, and state law specifies that a level 3 listing must include the person's name, relevant criminal convictions, address by hundred block, physical description, and photograph, along with a map view of that address.
What levels 1, 2, and 3 mean and how much weight to give one
A level number reflects an assessed risk of reoffending, not a description of what happened. Washington law enforcement assigns adult and juvenile registrants a risk level classification by weighing the person's risk assessment and other factors about the offender and the crime, for the purpose of community notification. Level 1 is classified as low risk, level 2 as moderate risk, and level 3 as high risk to sexually reoffend.
Level 2 and level 3 registrants are the ones you'll find on the statewide public site. Level 1 registrants are left off the public registry unless they are out of compliance with registration requirements or lack a fixed residence, in which case they are published too.
A level 3 hit deserves real caution, and a level 1 registrant who does appear is there because he's out of compliance or transient, which is worth noting on its own.
Confirming it's actually the person you mean
Compare more than the name. Check the photo, physical description, and the address's hundred block against what you already know. When two entries look close, treat neither as confirmed until the details line up.
Where county sheriff sites and alerts help
The Federal Way Police Department says it partners with the King County Sheriff's Office to monitor registered sex offenders and kidnapping offenders. Its resource guide says level 2, level 3, and registered kidnapping offenders are listed publicly on websites managed by King County and the Washington Association of Sheriffs and Police Chiefs.
According to the Federal Way Police Department, residents can receive automatic OffenderWatch notifications when a published offender moves into their area. This is a Federal Way resource guide, not a promise that every Washington county offers the same alerts.
When a search turns up nothing, several names, or someone with ties elsewhere
An empty result on the Washington site means no publicly listed registrant matched that name or area, not that the area is clear. The public registry shows level 2 and level 3 registrants, plus level 1 registrants who are currently out of compliance or lack a fixed address, so a level 1 registrant who is otherwise compliant simply won't appear. For level 1 detail, contact local law enforcement directly rather than reading a blank search as a clean bill.
If several similar names come up, compare photos, physical descriptions, and addresses before ruling anyone in or out. A result pointing outside Washington, or ties to another state, falls outside what the statewide search covers.
A registry check alone can't tell you whether a listing is the exact person you're getting to know, or whether he has court or criminal history outside what the registry tracks. TheTeaReport runs a sex-offender-registry check alongside identity and public-record context in one private report, useful for checking one specific person rather than scanning a neighborhood.
Sources and further reading
- Washington Sex Offender Public Registry (WASOR): WASPC publishes the statewide registry's web address, www.wasor.org, which searches by last name, city, county, zip code, or address by hundred block, and returns level II and level III registrants (plus level I registrants who are out of compliance or lack a fixed residence).
- RCW 4.24.550, Washington's sex offender registry statute: The law behind the statewide search: what fields it must accept, what a level III listing must show, and how agencies assign risk levels.
- King County Sheriff, sex offender registration: King County Sheriff's official sex offender registration page.
- NSOPW public registry search: National Sex Offender Public Website search.
Quick answers about searching Washington's sex offender registry
How do I look up a sex offender in Washington state?
Go straight to wasor.org, the statewide registry run by the Washington Association of Sheriffs and Police Chiefs. Type in a last name, county, city, zip code, or an address by hundred block, and matching level II and level III offenders come up on the page, along with any level I offenders who are currently out of compliance or lack a fixed address.
What does a level 3 sex offender mean in Washington?
Level III is the state's highest risk classification. Law enforcement assigns risk levels by taking into account factors about the offender and the nature of the crime, for the purpose of community notification. Level III offenders get the fullest public listing, including name, convictions, address by hundred block, and photo, and agencies can share that information with the public at large.
Stop guessing. Start vetting.
Criminal records, marriage history, and sex-offender registry checks. All the tea you deserve before you invest your time, energy, and trust.