City Cast Portland logo

It’s a Record Year for Portland Mosquitoes. How Do I Deal?

Posted on June 26, 2023   |   Updated on September 30, 2025

Rachel Monahan

record year for mosquitoes in Portland, get rid of all standing water

Mosquitoes breed in water. (Paul Starosta/Getty Images)

Mosquitoes are the deadliest creature on the planet. They carry malaria, West Nile virus, and other diseases. They manage to kill off up to a million of us humans a year. For now, local public health officials here aren’t worried about local mosquitoes carrying diseases. (They’re monitoring for that.) But still, public health officials are warning about a record year for the bugs.

Last year was also a record year locally, and this year is expected to be worse. (We can blame the early heat for that woe, too.)

record mosquito year Portland, spray

A good inspect repellent is a must-have this summer in Portland. (bymuratdeniz/Getty Images)

How do I avoid mosquito bites?

🦟 Use insect repellent — particularly kinds containing DEET.

👖 Cover arms and legs with long sleeves and pants. It’s not so convenient for hot weather but may be more comfortable than bites.

🌅  Stay inside during their peak hours — dawn and dusk.

🪟 Repair (or install) screens on your windows and doors.

How do I avoid having mosquitoes?

You may not be able to avoid them entirely, but the best way to prevent them from breeding is to make sure there’s no standing water around. Some tips for doing that:

💧 Get rid of any water that may collect in things like buckets, flowerpots, tires, and wheelbarrows. That may mean throwing things out or turning them upside down. It also means making sure there isn’t garbage underneath bushes, shrubs, or other out-of-the-way spots.

🍁 Clean out your gutters, so water doesn’t collect there.

💧 Make sure outdoor faucets and the hose aren’t leaking.

🐦 Change any water you have outside at least twice a week — like in bird baths, ponds, wading pools, and pet bowls.

🏊 If you’re lucky enough to have a pool, keep the chemicals in balance and the filtration system working.

🐟 This is above and beyond. But if you have an ornamental pond, consider getting a mosquitofish. (For real, that’s the advice of the public health agency.) This species of fish eats mosquitoes for lunch (and other meals).

Share article

Hey Portland

Stay connected to City Cast Portland and get ready to join the local conversation.

Can't subscribe? Turn off your ad blocker and try again.

Portland Life Hacks

See All
Portland Life HacksSeptember 1

Tips for a Better September 2026 in Portland

September is still summer in Portland, with outdoor events, farmers markets, and a major traffic disruption to plan around.

People in lawn chairs and on grass in front of a stage with the sign “Jazz Festival” visible.
Portland Life HacksJuly 1

Tips for a Better July 2026 in Portland

Find ways to prepare yourself for July in Portland, including tips on farmers markets, swimming, and fire season.

Pink, purple, and red flowers in a bouquet with pink tissue paper.
Portland Life HacksFebruary 9

How To Read the News for Free in Portland

It costs money to report the news, so it’s really important to support quality journalism. But it’s also understandable that too many new...

man sitting on bench reading newspaper
Portland Life HacksDecember 29, 2025

How To Responsibly Dispose of Holiday Waste in Portland

From torn up wrapping paper to that wilting Christmas tree dropping pine needles all over your rug, here are some tips for recycling and...

Christmas tree with red-and-white decorations and white lights
Portland Life HacksNovember 19, 2025

Hacks for Enjoying Your Time at PDX International

Tips and tricks to making the most of airport travel.

Travelers walk through PDX.
Portland Life HacksNovember 6, 2025

How to Stay Cozy and Save Money on Your Energy Costs in Portland This Winter

Keeping your home warm and cozy over the course of a Portland winter is expensive. But a few simple steps can lower your costs and keep y...

Top view of female hands adjusting the thermostat valve on a heating radiator
Portland Life HacksSeptember 29, 2025

How To Get Your COVID Shot in Portland in Fall 2025

After delays and confusion, updated COVID-19 vaccines are now widely available in Portland, Oregon — just like in years’ past.

a box for a covid shot and test that's already been taken with a mask
Portland Life HacksSeptember 16, 2025

Where to Ditch Your Hand-me-downs in Portland

The seasons are changing. Maybe you’re noticing there’s a heap of shirts, pants, or even jackets and sweaters you don’t wear (or fit into...

Entrance to the Goodwill thrift store

The latest in Portland

The Weekly Wander by City Cast PortlandSeptember 13

Side Quest: Charting History’s Course

While most of the Overlook neighborhood sits above the bluffs, the industrial area of Swan Island down below does actually fall within it...

An aerial photo from 1935 shows the Swan Island airstrip, built on a peninsula that juts out into Portland’s Willamette River.
The Weekly Wander by City Cast PortlandSeptember 13

Your Guide to Overlook

Beyond the views, the North Portland neighborhood has plenty of perks: access to the MAX Yellow Line, cocktail lounges, and residents who...

Branches with green leaves frame a view of Portland’s Fremont Bridge with skyscrapers behind it.
The Weekly Wander by City Cast PortlandSeptember 6

Side Quest: Pre-Game Routine

We don’t want to throw you off your game, but we do have some fun suggestions to spice up your traditions on the way to the Rose Quarter...

Banners and window art on the Moda Center show Portland Trail Blazers figures and history. In front of the arena, a person rides a bike by a sign that spells out Rip City.
The Weekly Wander by City Cast PortlandSeptember 6

Your Guide to the Lloyd District

For 66 years, the Lloyd Center was a place where Portlanders made memories, went shopping and ice skating, and even put in the miles mall...

An aerial shot shows the roof and twin glass spires of the Oregon Convention Center, with high-rise office buildings of the Lloyd District in the background.
Portland's BestSeptember 1

What To Do in Portland in September 2026

September brings migrating swifts, Comic Con, Geek Week, and the start of apple-picking season, with plenty of ways to enjoy Portland’s f...

church with a purple blue sky and birds in the air above a domed church with swifts
The Weekly Wander by City Cast PortlandAugust 30

Your Guide to the Pearl District

Portland’s largest outdoor art fair is celebrating its 30th anniversary Saturday, Sept. 5 through Monday, Sept. 7 under the trees in the...

People browse artist booths under the trees at Art in the Pearl. In the foreground, colorful glass sculptures sit on pedestals.
The Weekly Wander by City Cast PortlandAugust 30

Side Quest: Art in the Heart

Born from Portland’s creative warehouse scene, the Pearl District remains an arts hub, with galleries, museums, public art, and vibrant c...

A colorful abstract painting of a person hangs on a wall to the left. In the background, two figures observe different paintings at the Froelick Gallery in Portland, Oregon.
Portland, ExplainedAugust 27

How Well Do You Know Our Local Mascots?

Portland Fire, the city’s WNBA team, revealed their new mascot this week after much fanfare.

Pink dragon in a Fire jersey.