People assume animal control works like the fire department. One county, one agency, one number.
In Snohomish County it does not. Cities run their own programs, the county's Animal Services covers unincorporated areas only, and the ordinances differ from one jurisdiction to the next in ways that reach reporting duties, leash requirements and quarantine procedures. A report filed with the wrong agency does not get forwarded. It gets returned, days later.
Start with the address, not the mailing address
The distinction that trips people up is between a mailing address and a jurisdiction. Large areas of Snohomish County carry a city's mailing address while sitting in unincorporated county. Lynnwood, Everett and Marysville all have substantial adjacent unincorporated areas, and the postal address gives no hint which side of the line a given house is on.
Both the county and its cities publish address lookup tools for exactly this reason, and using one takes about thirty seconds. Snohomish County maintains a "Find Your Animal Services Agency" lookup, and it is the fastest way to answer the question for any address in the county. Lynnwood publishes its own "Do I Live in Lynnwood" map.
If you only do one thing before making a call, do this one.
Unincorporated Snohomish County
Snohomish County Animal Services responds to and investigates incidents involving domesticated animals and livestock in unincorporated Snohomish County, and states plainly that its service area is limited to those areas.
The county directs 911 for a person or animal injured or in immediate danger, including an attack in progress or an animal actively biting or attempting to bite. For a bite or attack that has already happened, it asks people to call Animal Services at 425-388-3440 or file through its online complaint form, which is available around the clock. Calls received after hours, on weekends or on holidays are returned the next business day, and the county describes dispatch opening a case and assigning it to a field officer.
The applicable leash provision is SCC 9.14.030, which requires a dog off the owner's or custodian's premises to be under control, a term the county code defines with specific restraint and physical-control requirements. It applies to unincorporated areas only.
Lynnwood
Lynnwood runs an Animal Control Unit inside its police department. The city lists 911 for emergencies and 425-407-3999 for a non-emergency response, and directs residents outside city limits to Snohomish County Animal Services.
Lynnwood's animal chapter also contains a bite-reporting provision that is written more broadly than most, reaching the animal's owner, the person bitten, and treating doctors, veterinarians and hospitals. If your incident happened in Lynnwood, that section is worth reading directly rather than assuming the rule matches a neighboring city's.
Bothell
Bothell handles animal control through its police department, with 911 for emergencies and non-emergency dispatch at 425-577-5656.
Bothell adds a complication no other city in the county has: it spans the King and Snohomish county line. City animal services responds on both sides, but the county-level public health and records questions can route differently depending on where the incident actually occurred. Bothell also asks that witnesses file statements with its animal control, and describes investigation as following the filing of a statement.
Everett
Within Everett city limits, Everett Animal Control officers investigate animal incidents and enforce Title 6 of the Everett Municipal Code. The City's current Animal Control Complaints page says to call 911 for a life-threatening emergency. For a non-life-threatening bite or aggressive-animal incident that is happening now, Everett directs callers to 425-257-6000 and to press 0 for assistance. For incidents that are no longer in progress, the City provides an online animal-service request.
That Everett process applies inside the city. An address with an Everett mailing address can still sit in unincorporated Snohomish County, where Snohomish County Animal Services is the correct enforcement agency. Confirm the jurisdiction before reporting.
Other Snohomish County cities
Marysville, Edmonds, Mountlake Terrace, Mukilteo, Monroe and other cities use their own animal-control arrangements, and those arrangements are not uniform. Rather than publish a phone directory that can drift out of date, use Snohomish County's agency lookup for the exact address and then use that agency's official page for its current reporting method.
Also keep shelter intake separate from enforcement. A dog being housed at the Everett Animal Shelter does not necessarily mean Everett Animal Control investigated the incident. The enforcement file belongs with the agency that had jurisdiction where the bite occurred.
What does not change anywhere in the county
The liability rule is statewide.
RCW 16.08.040 makes the owner of a dog liable for damages when the dog bites a person who was in a public place or lawfully on private property, regardless of the dog's former viciousness or the owner's knowledge of it. That rule is identical in Everett, in Lynnwood, in Bothell and on an unincorporated county road. Lawful presence is governed by RCW 16.08.050 and provocation by RCW 16.08.060, both statewide as well.
A citation is not required for that claim. Neither is a dangerous-dog declaration. Local ordinances decide what the agency does about the dog. They do not decide whether the owner owes you anything.
Why the jurisdiction question is worth thirty seconds
Three practical reasons. Reporting to the wrong agency wastes the window when witnesses are still reachable and the injury still looks like it did. The applicable ordinance changes with the jurisdiction, so which leash rule, quarantine procedure and reporting duty apply changes too. And the records live with whichever agency actually responded, which means a public records request later has to go to the right place.
Write down the exact address before you write down anything else.
The office handles Washington dog-bite claims across King, Pierce and Snohomish counties. A review costs nothing, and there is no fee unless the claim resolves in your favor.