Kelso is the seat of Cowlitz County, with 12,801 residents in 2025. Web design in Kelso has to serve people who drive in from across Cowlitz County. Aria’s web design plan for Kelso businesses is $89 a month and covers the website, the domain, business email and hosting; you see the finished site on a temporary link before paying anything.

No setup fee: you only pay the $89 monthly fee, after you approve your website.

The Kelso your customers live in

Households in Kelso have a median income of $66,751 (Washington: $98,141), and the median rent is $1,220. Customers who watch their budget compare before they spend, and they skip businesses that hide the price. How customers can pay, whether an estimate costs anything and your hours should be easy to find.

Kelso dates from 1884, which gives it more than a century of local history. It also keeps sister-city ties with Kelso (United Kingdom). Long-established places reward businesses that feel familiar: people want to know who they are dealing with and how long you have been around. An About page with names, dates and faces says more than any tagline.

Kelso’s population, year by year

Census estimates put Kelso at 12,726 in 2020 and 12,801 in 2025, a stable city. Washington as a whole changed +3.8% in the same period. A steady city rewards the business people can find and trust quickly.

Local competition in Kelso

The Census counted 435 establishments with employees in 2023 in ZIP code 98626, which includes Kelso and its surroundings. A sample of that count, and what each kind of business needs online:

  • Flooring contractors, 6 in the count. What works online: photos by floor type (tile, wood, vinyl), the areas you cover and a form to book an estimate visit.
  • Full-service restaurants, 13 in the count. What works online: the menu, hours, location and photos of the food, easy to read on a phone.
  • Local trucking companies, 5 in the count. What works online: the freight you haul, the areas you cover and a contact form for shippers.
  • Real estate offices, 11 in the count. What works online: market areas, how you work with buyers and sellers and a contact form.
  • Auto body shops, 4 in the count. What works online: photos of repairs, how you handle insurance claims and a form to request an estimate.

Cowlitz County as a whole had 2,309 employer establishments in 2023 and another 5,328 nonemployer businesses, the one-person shops and independent contractors that often have no website at all. One sector stands out in Cowlitz County: nursing and residential care facilities, with 51 establishments and twice the national share. What works for them online: levels of care, photos of the facility, licensing information and how to arrange a visit. Most of these businesses are small, and the website does the job a front desk would do in a bigger company.

Who your website talks to in Kelso

Kelso’s housing is older, with a median construction year of 1963. The older housing in Kelso keeps roofers, plumbers and remodelers busy. 46.5% of commuters get to work in less than 15 minutes. Short trips keep spending close to home, and customers pick the nearest business they can trust.

Only 55.7% of residents were born in Washington; 38.3% came from another state, most often from the West. For them, your website is often the first contact with your business.

Kelso by the numbers

12,801People (2025 estimate)Census Bureau estimate
+0.6%Change in population, 2020-2025Washington: +3.8%
$66,751Household income, medianWashington: $98,141
39.9Half the residents are older thanWashington: 38.3
91.4%Of households with broadbandWashington: 93.6%
435Employer establishments, local ZIPsZIP Code Business Patterns 2023

Of the 5,435 households in Kelso, 56.1% are homeowners. The typical resident is 39.9 years old, versus 38.3 statewide.

Where Kelso customers come from

Distances from Kelso: Rainier, OR (4.1 miles southwest), Longview (4.2 miles northwest), Prescott, OR (4.8 miles south) and Kalama (7.2 miles south). Interstate 5 runs through the city. The city spreads over 8.1 square miles of land and 0.7 square miles of water, with roughly 1,574 people per square mile. Part of Lewis and Clark National Historical Park is within 47 miles of the city. For flights, Southwest Washington Regional Airport (KLS) lies 0.6 miles away. For big-city shopping and services, Vancouver (199,698 residents) is 36 miles away. List the towns you actually serve, such as Longview and Prescott, on your website; customers outside Kelso want to know before they call.

When Kelso customers need you: the seasons

Kelso weather, in normals: August highs around 80°F, February lows around 35°F, measured at Longview, 2.7 miles away (1991-2020). Precipitation totals about 48 inches a year, with November the wettest month. Freezing nights (32°F or below) come about 41 times a year. Mild weather keeps outdoor work going most of the year: patios, yards and outdoor events stay busy for months. Put your seasonal services on their own page, so the right page is there when the weather turns.

The legal basics for Kelso businesses online

These are some of the Washington and federal rules a small business with a website runs into:

  • Accessibility is a federal matter: the Justice Department’s ADA guidance covers the websites of businesses open to the public. ADA.gov guidance
  • Check with both Cowlitz County and the City of Kelso about local business tax receipts before opening. Official source
  • Doing business under a name other than the owner’s full legal name is one of the conditions that requires a Washington state business license, so the trade name is registered together with that license at the Department of Revenue. Official source
  • Washington’s state retail sales tax rate is 6.5%, with a local rate added depending on the city or county. Washington State Department of Revenue

Rules change and details vary by business; this is general information, not legal advice.

Hiring a web designer for your Kelso business, without the meetings

Based in Curitiba, Brazil, Aria has been building business websites since 2008. We work with businesses remotely, so a company in Kelso gets the same plan, at $89 a month, without meetings or visits.

  1. Fill in the sign-up form (about 5 minutes) and send your logo, photos and texts by email.
  2. Your website is ready within 5 business days on a temporary link, so you can check every page before anything is published.
  3. Only after you approve do you pay the first monthly fee; then the site is published on your domain.

After it goes live, hosting, SSL, daily backups and security updates are handled for you, and content changes by email are included.

Plan$89/monthNo setup fee: you only pay the $89 monthly fee, after you approve your website. No lock-in contract.
  • Business website or online store, same price
  • Your domain, registered and renewed by us (or the one you already have)
  • Business email on your domain: 5 GB, webmail and spam filtering
  • Hosting, SSL certificate and daily backups
  • Changes to text, photos and prices, requested by email
  • Ready within 5 business days on a temporary link
I want the $89 plan

Your questions, answered for Kelso

Can the website mention Prescott, Longview and the other towns I cover?

Yes. List Prescott, Longview, Kalama or any other place you work on a service area page, and every page keeps the contact form.

Will someone from Aria visit my business in Kelso?

No visits: Aria works remotely from Curitiba, Brazil. You send your logo, photos and texts by email, and approve the website on a temporary link.

Can customers buy from my website?

Yes. The plan can be an online store with a catalog, shopping cart and online payment, for the same $89 a month. Collecting sales tax is your responsibility: Washington’s state rate is 6.5%, and local taxes may apply.

Is there a setup fee?

No. No setup fee: you only pay the $89 monthly fee, after you approve your website. There is no lock-in contract either: you can end the service whenever you need.

Start your Kelso website today

No setup fee, no lock-in contract: you see the finished website first and pay the first month only if you approve it.

Start my sign-up
Sources for the numbers on this page
  • Population figures for Kelso: Census Bureau Vintage 2025 estimates. Households, income, commuting and housing: American Community Survey 2020-2024, 5-year. Businesses: ZIP Code and County Business Patterns 2023 and Nonemployer Statistics 2023. Distances: 2025 Gazetteer, straight line.
  • Climate: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020 (station USC00454769).
  • Highways: U.S. Census Bureau TIGER/Line 2024 primary roads and 2024 cartographic boundary files.
  • Founding year, nickname, elevation, waters, colleges, hospitals, airports and parks: Wikidata (item Q868654), retrieved on October 30, 2026; distances are straight-line.
  • Rules for Washington businesses: official sources linked above, checked on October 30, 2026. County seat: USGS National Atlas.