Emergency Crime Scene and Biohazard Cleanup in Amboy, WA

Amboy is an unincorporated census-designated place in northern Clark County, Washington, which first appeared as a CDP in the 2000 census.

It was named by Amos M. Ball, who settled in the area in 1879 and whose family ran the post office established in 1880; one account says settlers with the initials A.M.B. called themselves the 'A.M. Boys,' while another says the name honored Ball's son, known locally as the 'A.M. Boy.'

The 2020 census counted 1,800 residents in Amboy, living in 576 households among 594 housing units, up from a population of 1,608 in 2010.

The Census Bureau classified 100 percent of Amboy's 2020 residents as rural, and the CDP — which shrank from 14.3 square miles in 2000 to 10.0 square miles by 2010 — had a median age of 38.7 years.

The Amboy United Brethren Church, built in 1910, was converted in 2000 into the North Clark Historical Museum.

In 2008 the FBI inspected a parachute that local children had found buried near Amboy as possible evidence in the D. B. Cooper skyjacking case, but determined it was not Cooper's — it was a silk parachute likely dating to the 1940s.

Amboy sits at the junction of Chelatchie Creek and Cedar Creek, a tributary of the Lewis River, where State Route 503 passes through; most of it is zoned to the Battle Ground School District (Yacolt Primary School, Amboy Middle School in Amboy, and Battle Ground High School), with a northwestern part in the Green Mountain School District.