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EVERETT — The Mill Creek City Council took a step forward Tuesday in annexing an area to the south of the city, which would grow Mill Creek’s population by more than 50%.
The council voted 6-0 on Tuesday to allow city staff to begin working with the county and the Boundary Review Board to draft a plan for annexation. Council member Vince Cavaleri abstained.
The area includes neighborhoods near 180th Street Southeast and 192nd Street Southeast, with boundaries extending east toward 35th Avenue Southeast and west toward the North Creek Park area. A map of the area is available at millcreekwa.gov/annexation. According to city staff, the area has an estimated 11,700 people, more than half of Mill Creek’s population of about 21,000, per 2025 census data.
Tuesday’s vote does not finalize annexation. In December, the council is scheduled to decide whether to pursue annexation through a vote or through an interlocal agreement with the county. From there, the council would still need to approve a final ordinance. Staff currently estimate annexation would take effect on Jan. 1, 2028.
The proposed annexation area is only a small portion of Mill Creek’s urban growth area, or unincorporated parts of the county that the city is expected to eventually annex, as designated by the county. The total municipal growth area has a population of more than 52,000, the highest in Snohomish County, according to the county’s 2024 comprehensive plan.
The city has been studying annexation for more than two years, staff said Tuesday. In July, the City Council voted to focus on the south area for the first annexation phase. If the city moves forward, it will be its first annexation since 2008, according to the city website.
In the next three to five years, the council has expressed interest in annexing the eastern part of the growth area, which extends east to Sunset Road and areas east of Seattle Hill Road.
With Tuesday’s vote, the city will now begin community engagement within the southern neighborhood. Some council members said they’d like to see town halls and other public events regarding annexation before December.
Council members said annexation would provide the city with a more diverse revenue stream moving forward. According to financial projections from a city-hired consulting firm, bringing the south portion into the city will generate an estimated $2.7 million in the first year and $5.3 million per year by 2045. The projections take into account potential costs of maintaining North Creek Park and Mays Pond Park, which are both part of the proposed area.
“The reality is, right now, we cannot afford to keep giving (residents) a high level of service without continuing to go up and up and up on their taxes on their housing, and there’s only so much that we can do that to everybody,” Mayor Stephanie Vignal said. “So if we’re going to continue to maintain high quality services, high quality parks, the high quality amenities that everyone looks at us for, then we’re going to have to figure out a way to diversify that income stream, and, to me, this is the way that we’re going to look at doing that.”
Cavaleri said he abstained from the vote because he doesn’t believe the financial projections accurately reflect larger financial trends, including the housing market.
“There might be an initial sugar high, but I don’t trust the data,” he said. “Annexation isn’t always the big windfall you had hoped it would be, but I also realize that annexation is tied to everything else that the city wants to do.”
City staff said Tuesday that annexation would put the city in a stronger long-term financial position and provide more revenue for large city projects, including the South Town Center and DRCC campus.
“I do believe that annexation could and most likely is gonna be a net-positive step in our long term financial viability if we want to keep a clean, safe and well-maintained city for the people who live here now, let alone the folks that don’t live here yet,” council member Sean Paddock said.
Other cities, including Edmonds and Everett, are currently exploring annexation.
During public comment, 13-year resident Hilary Bublitz spoke in favor of annexation.
“Legislators in Olympia are pushing for increasing density, particularly along the I-5 corridor,” she said. “Mill Creek is right in the middle of that growth. We can be spectators as the communities around us change, or we can position ourselves to influence that change. Either way, change is coming.”
Jenna Peterson: 425-339-3486; [email protected]; X: @jennarpetersonn.