Federal Way, Washington
city in King County, Washington, United States
Federal Way is a city in King County, Washington, United States, and part of the Seattle metropolitan area. It is 25 miles (40 km) south of Seattle and had a population was 101,030 at the 2020 census. Federal Way is the 10th most populous city in Washington and the fifth most populous in King County.
The city's name originated from a local school district, which named itself for U.S. Route 99 in 1929. The highway was replaced by Interstate 5, which made Federal Way into a bedroom community for commuters. After three votes on incorporation failed, the city was created in 1990. Federal Way has been the terminus of the Link light rail system's 1 Line since 2025.
History
Originally a logging settlement, the area was first called "Federal Way" when a consolidated school district was established in 1929. The name derived from U.S. Route 99 (now State Route 99 or Pacific Highway South), a federally-designated highway which ran through the state and connected Seattle to Tacoma. It followed an earlier road between Fort Steilacoom and Fort Bellingham that was completed in the 1850s and later became known as Military Road.
The public source identifies “Federal Way, Washington” as city in King County, Washington, United States. This brief keeps that definition visible, then builds a research path around Federal, Washington and city.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Federal Way, Washington”, the useful work is to connect “city in King County, Washington, United States” to the records capable of establishing context and consequence.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q821112. VIAF identifies the subject as 126297693. The Library of Congress control number is n82157508. Authority coordinates are 47.315, -122.340. 4 of 6 selected statements include explicit references; 2 carry qualifiers and 1 use preferred rank. The first chronological checks are 2020, 1929, 1990 and 2025.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Federal Way, Washington”, its source revision and the description used here.
- Expand the search: follow Federal Way, Washington primary sources, Federal Way, Washington archive and Federal research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Federal Way, Washington”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Federal Way, Washington” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.