Dayton is a city in Yamhill County, Oregon, United States.

[5] Palmer, who also served as superintendent of Indian affairs for Oregon,[5] built a flour mill there.

[5] Dayton post office was opened in 1851, with Christopher Taylor serving as postmaster.

Nearby, in Courthouse Square Park, is the Fort Yamhill Block House, which was brought to Dayton in 1911 to prevent its demolition.

The structure had been built by Willamette Valley settlers on Fort Hill next to the Grand Ronde Coastal Reservation in 1855 and 1856.

According to the United States Census Bureau, the city has a total area of 0.84 square miles (2.18 km2), all of it land.

Dayton is a rural community, with many people involved in agriculture such as vegetable, berry, nut, nursery plants, wheat production and dairy farming.

The vineyards and wineries located in the Willamette Valley AVA and the Dundee Hills AVA are an increasing source of direct economic activity as well as a source of visitors to the city.

There, Highway 233 continued northeast along SE Kreder Road to its northern terminus at what was then numbered as US Route 99W.

During this period, the northern terminus of Highway 221 was located at its intersection with Ferry Street.