King County WA Business Landscape: Where the Competition Is Thick and Where the Gaps Are

County Business Patterns counts employer business locations, which means businesses with payroll. It does not count a sole proprietor with no staff, so the true number of people offering a service is higher. We use it because it is consistent across every county and because it shows how crowded a trade is per resident, how large its locations are and how the count changed since 2017.

The King County business landscape in 2022 comprised 70,530 employer locations and 1,290,681 employees. Per resident, that is a county where several trades are far more crowded than the typical county: the Census ratio column compares each trade with the median county of 20,000 or more residents. A ratio above 1 means more locations per 10,000 residents than the median county, and a ratio below 1 means fewer.

For a business owner, this changes how to market. In a crowded trade, a general promise gets lost, so SEO has to be specific, Google Business Profile has to be complete and ads have to be placed with care. In a quiet trade, the same effort may produce more calls, because fewer competitors are bidding for the same searcher.

Four trades stand out as crowded in King County. Real estate agents and brokers have 2,280 locations, 10.0 per 10,000 residents, or 3.6 times the typical county, and the count grew 41.9 percent since 2017. Law offices have 1,607 locations at 2.4 times the typical county. Residential remodelers have 1,632 locations at 2.3 times, with growth of 12.5 percent. Dentists have 1,459 locations at 2.2 times. Across King County, these four trades are where a new competitor has the hardest time being noticed.

In these trades, a single SEO page for King County, Washington, does not make a business stand out. Seattle, Bellevue and Kent are different searches, and a law office or a dental practice has to say something real about the neighborhood, the specialty and the people it serves. Maps listings and reviews matter, because the person choosing between five dentists on a map will compare stars and photos. Paid search can be expensive in crowded trades, so ad plans lean on narrow targeting rather than broad budgets.

Beauty salons (3.7 locations per 10,000, about 2 times typical), accounting firms (1.6 times) and janitorial services (also 1.6 times) are also above typical. Restaurants are about 1.7 times typical, with 2,613 locations and 719 of them having 20 or more staff, the largest group of big locations in the table.

Plumbing, heating and air-conditioning contractors have 456 locations, 2.0 per 10,000 residents, which is 0.6 times the typical county, and the count fell 14.3 percent since 2017. Automotive repair is at 0.8 times and electrical contractors at 0.9 times. Summers here are mild, with average highs about 77 degrees in July and August, which may be part of why cooling work is lighter here than in hot counties. For a home service business, that means a plumber or electrician may find more room than a lawyer or a realtor does.

Roofing is different. It has 202 locations, 0.9 per 10,000, close to the typical level, and the count grew 27.8 percent since 2017. In a county with long wet seasons, a growing roofing field is one to watch, since newer competitors are bidding for the same searches. Physician offices fell 11.8 percent, though 182 of those locations have 20 or more staff, so much of the care sits in larger groups.

The simple point of the King County business landscape is that numbers like the thinner plumbing field and the much thicker real estate field should shape which service we recommend first. A quiet trade in King County, Washington, can often start with local SEO and Maps, while a crowded one may need content, reviews and carefully targeted ads at once.

Size changes the plan as much as count does. In 13 of the 15 trades in the table, at least 70 of every 100 King County locations have fewer than 10 staff, which means most of the competitors a small firm meets are small too. A small remodeler or real estate brokerage cannot outspend the field, so it wins by being precise: one zone, one specialty, a Google Business Profile that is complete and reviews that are recent.

The big locations are a different problem. Restaurants have 719 locations with 20 or more staff, physician offices have 182 and law offices have 128, and a business at that size needs call routing, several location pages, review management across sites and reporting a front desk can read. For those, King County local search is a multi-location project, not a single listing, and the work on the Google Maps and local SEO page applies directly.

A trade with almost no large locations, such as general automotive repair with only 5, is the opposite case: it is a field of small shops, and the owner who builds a better Maps listing and a clear service page can stand out quickly.