Run a guided check
Scan Check Protect walks you through verifying your Arizona registration and flags anything that needs fixing — free.
Start at Scan Check Protect →Yuma County, Arizona
Check your Yuma County registration.
Confirm what Arizona has on file first, then use Yuma County's official election channels below.
About Yuma County
Yuma County is a county in the southwestern corner of the U.S. state of Arizona, one of 15 counties in the state. As of the 2020 census, its population was 203,881. The county seat is Yuma.
Description adapted from Wikipedia, CC BY-SA 4.0.
At a glance
Yuma County at a glance
- County seat
- Yuma
- Population
- 203,881 (2020)
- Land area
- 5,519 sq mi
- Founded
- 1864
Communities
Largest communities in Yuma County
- Yuma county seat95,548
- San Luis35,257
- Fortuna Foothills27,776
- Somerton14,197
- Avenue B and C4,101
History of Yuma County
Long settled by Native Americans of indigenous cultures for thousands of years, this area was controlled by the Spanish Empire in the colonial era. In the 19th century, it was part of independent Mexico before the Mexican–American War and Gadsden Purchase. Yuma County was one of four original Arizona counties created by the 1st Arizona Territorial Legislature. The county territory was defined as being west of longitude 113° 20' and south of the Bill Williams River. Its original boundaries remained the same until 1982, when La Paz County was created from its northern half. The original county seat was the city of La Paz; in 1871 it was moved to Arizona City, later renamed as Yuma in 1873.
Adapted from Wikipedia, CC BY-SA 4.0.
Next door
Neighboring counties
Start here
Confirm you're ready to vote in Yuma County
Ask Yuma County directly
Your county election office handles registration, mail ballots, and polling places.
Yuma County election office →Official channels
Yuma County election resources
Yuma County election office. Statewide tools and every Arizona resource in one place: the Arizona page at Scan Check Protect →
Part of Arizona Voter Check
This is the Yuma County page of Arizona Voter Check, a project of True the Vote, pointing Arizona voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Yuma County or Arizona Secretary of State publishes, they are right and this page is not.