Posted on

Welcome to Another Season!

Spring has finally arrived!  The daffodils are blooming, the robins have returned, and your Cowlitz County Mosquito Control District is now open for another season!  Unfortunately, the warmer spring weather also means favorable conditions for mosquito larvae.  Our technicians will be spending these first weeks of spring working hard to get rid of the mosquito larvae before they have a chance to hatch.

If you need help to control the mosquito population in your area, you may request service by filling out the form on our Contact Page or by calling our Hotline number (360) 425-5658.

Posted on

Welcome City of Woodland Residents!

On Tuesday, November 7, 2017, the residents of Woodland voted overwhelmingly to accept Cowlitz County Mosquito Control District Proposition One.  As a result, we will now be able to extend our services to the residents who live within the Woodland city limits.

Our usual operations are seasonal and run from March through September each year.  You may request service by filling out the contact information on our Home Page, or on our Contact Page, or by calling the Hotline at 360-425-5658.

We look forward to hearing from you!

Posted on

Calculating Your Assessment

If your parcel is

Acre size Assessment Amount
1-5 acres $8.78
5-25 acres $13.17
25-50 acres $17.56
50-100 acres $21.95
100-500 acres $26.34
Over 500 acres $30.73


How to Determine if Your Parcel is Within a Surcharge Area


If any part of your parcel is within one of the following described areas, it will be subject to a surcharge.

California Way

All lots connected to California Way

Kalama River Road

Kalama River Road. Begin at 107 Kalama River Road; continue east to 461 Kalama River Road (Parcel 60893). All lots between these two addresses accessed by Kalama River Road.

Mint Farm

Begin at Olive Way and Ocean Beach Hwy. Olive Way to Memorial Park Drive. Memorial Park Drive West to 38th Ave. South on 38th Ave to Industrial Way.  Industrial Way southwest to Washington Way. Washington Way east to Rail Road tracks crossing Washington Way (just west of 34th Ave). Rail line north to Ocean Beach Hwy. Ocean Beach Hwy. to Olive Way.


South Kelso

Begin on Talley Way at Coweeman River Bridge. West to east bank of Cowlitz River. North along east bank of the Cowlitz River to Allen Street. Follow Allen Street east to I-5. Follow I-5 south to Exit 36. Follow Exit 36 Ramp B to Talley Way at Coweeman River Bridge.

Spirit Lake Hwy

Begin at Si Town Road. All lots connected to Si Town Road. All lots connected by road to Spirit Lake Hwy. from Si Town Road to Gallow Road.

West Ocean Beach

Begin at 38th Ave and Ditch 8 (2098 38th Ave- Parcel 107890100) Follow Ditch 8 north to Mount Solo Road. Mount Solo Road south to Willow Grove Connection Road. Willow Grove Connection Road north to junction of Ocean Beach Hwy. Continue north across Ocean Beach Hwy to Coal Creek Road. Following Coal Creek Road north to Pacific Way. Follow Pacific Way east to 38th Ave. Follow 38th Ave. southwest to 38th Ave. and Ditch 8.

Willow Grove

Willow Grove Road and Columbia Point Road.  All lots connected to Columbia Point Road. South on Willow Grove Road to Taylor Sands Road. All lots connected to Taylor Sands Road. Continue southwest on Willow Grove Road all lots connected to Willow Grove Road from Taylor Sands to 7401 Willow Grove Road (Parcel WL1806011)



If your parcel is located in a surcharge area, multiply your rate based on parcel size by 1.5.

Examples:        For parcels up to 1 acre:  $6.59

For a parcel between 5-25 acres:  $19.76

For a Parcel between 25-50 acres $26.34


For parcels designated as forest lands:  Calculate your rate as provided above and reduce the result by 90%.