King City

History

The community was built by the Tualatin Development Company starting in 1964. Created as a planned community for adults, King City was incorporated in March 1966. Build-out of the original finished about 1978. The KCCA rules were later changed to conform to the 1988 amendments to the Federal Fair Housing Act, which set the age restriction to 55 or older. Later, the city, which was at first contiguous with the boundaries of KCCA, expanded to include newer, non-age restricted developments. Future expansion to the west is planned for the city, within the limits of the Portland Metropolitan Urban Growth Boundary. In 2024, the City Council passed an annexation on the far West side of the King City Urban Growth Boundary. This annexation was approved by 100% of land owners and increased the City land area by approximately 215 acres.

Geography

According to the United States Census Bureau, the city has a total area of , all of it land.

Race & ethnicity

Most-observed species

• Song Sparrow

  Melospiza melodia (A.Wilson, 1810) · Aves
  84,801
• American Crow

  Corvus brachyrhynchos C.L.Brehm, 1822 · Aves
  83,434
• Dark-eyed Junco

  Junco hyemalis (Linnaeus, 1758) · Aves
  74,388
• Black-capped Chickadee

  Poecile atricapillus (Linnaeus, 1766) · Aves
  67,056
• American Robin

  Turdus migratorius Linnaeus, 1766 · Aves
  61,576
• Anna's Hummingbird

  Calypte anna (R.Lesson, 1829) · Aves
  60,261
• Spotted Towhee

  Pipilo maculatus Swainson, 1827 · Aves
  55,346
• House Finch

  Haemorhous mexicanus (P.L.Statius Müller, 1776) · Aves
  55,199

Most recent

• M 3.75 — 2026-09-05
  20 km E of Castle Rock, Washington
• M 2.61 — 2026-07-31
  18 km NE of Amboy, Washington
• M 2.61 — 2026-07-10
  3 km SE of Rose Lodge, Oregon
• M 3.18 — 2025-11-23
  5 km SE of Amity, Oregon
• M 2.66 — 2024-08-30
  14 km ESE of Molalla, Oregon
• M 2.99 — 2024-01-05
  33 km NNE of Amboy, Washington