Cities in Grant County, Oregon by Population (2024)

There are 11 cities in Grant County, Oregon.

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.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
John Day1Oregon1,6561,666-0.18%7332.26
Prairie City2Oregon834840-0.24%8410.99
Canyon City3Oregon652660-0.31%4631.41
Mount Vernon4Oregon5555500.18%8130.68
Sumpter5Oregon2092070%962.18
Long Creek6Oregon1711710%1671.02
Ukiah7Oregon1681670%7570.22
Seneca8Oregon163166-0.61%2050.80
Dayville9Oregon1321320%2510.53
Monument10Oregon1161150%2280.51
Granite11Oregon30300%810.37

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?

Granite is the smallest city in Grant County.

How many cities are in Grant County?

There are 11 cities in Grant County, Oregon.

Frequently Asked Questions