Grant County, Oregon Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
John Day11,6561,666-0.18%7332.3City
Prairie City2834840-0.24%8411.0City
Canyon City3652660-0.31%4631.4Town
Mount Vernon45555500.18%8130.7City
Long Creek51711710%1671.0City
Seneca6163166-0.61%2050.8City
Dayville71321320%2510.5Town
Monument81161150%2280.5City

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Grant County, Oregon?

John Day is the largest city in Grant County.

What is the smallest city in Grant County, Oregon?

Monument is the smallest city in Grant County.

How many cities are in Grant County?

There are 8 cities in Grant County, Oregon.

Frequently Asked Questions