SALEM — What’s true across the nation appears to be true in Oregon: If you’re a Republican, you’re less likely to be vaccinated against COVID-19.

The Oregonian looked at the county-by-county statistics of Oregonians inoculated against the coronavirus and saw a clear correlation: The 10 counties with the lowest percentages of residents vaccinated all voted — by a landslide — for Donald Trump in the last presidential election. That’s Lake, Malheur, Umatilla, Grant, Harney, Gilliam, Morrow, Union, Douglas and Baker counties.

Eight of the 10 counties with the highest vaccination rates voted overwhelmingly for Joseph Biden. That’s Washington, Hood River, Multnomah, Benton, Lincoln, Deschutes, Lane and Clackamas.

Polk and Tillamook — where Trump beat Biden by slim margins of less than 2 percentage points — also made Oregon’s top 10 list of most-immunized counties.

Another way to look at it? Compare the most-Republican county in the state — Lake — with the most-Democratic — Multnomah. Eight out of 10 voters in Lake County voted for Trump in November 2020, and 35% of residents 16 and older in the county received at least one shot of COVID-19 vaccine as of early July.

Conversely, nearly 8 out of 10 voters in Multnomah County chose Biden, and 73% of residents 16 and older — more than double the figure in Lake County — had received at least one jab.

Asked about Lake County’s low inoculation rate, James Williams, chairman of the County Commission, bristled at the correlation between voting and vaccinations.

“If you are looking to attack or degrade the majority (or any part) of Lake County’s population, based around their political affiliation and/or their medical choices,” Williams wrote in an email, “I would say that it not only shows a shameful personal bias on your part, but possibly the need to find a new profession.”

Meanwhile, George Murdock, chair of the Umatilla County Board of Commissioners, said he’s a Republican and got vaccinated on the first day he was eligible. “Mind boggling” is how he described the Republican-Democrat divide.

“It just doesn’t make any sense to me,” Murdock said. “There’s absolutely no reason for it to be polarized between political parties.”

Umatilla County, where 64% voted for Trump, has the third lowest vaccination rate in the state, with just more than 41% of residents 16 and older having received at least one shot.

Murdock, 78, is vocal about his vaccination status and the story of his daughter, 46, who still is a COVID-19 longhauler seven months after she came down with the virus.

In Oregon, it’s also worth noting the counties with the highest rates of vaccine hesitancy or resistance are generally the smallest and most rural in the state. Some observers say that might contribute to lower vaccination rates: Residents don’t perceive COVID-19 as a significant threat.