Seasonal farmworkers in Fairview drove the single largest increase in identified coronavirus infections across Oregon last week, newly released statistics from the Oregon Health Authority show.

The ZIP code 97024 in Fairview recorded 39 new infections in the week ending Sunday, raising the area’s total to 72 since the pandemic began. (Click here for an interactive map).

The health authority announced last week that an outbreak tied to Townsend Farms seasonal workers had infected dozens. The fruit company has properties in Fairview and Cornelius.

At least 35 people have been infected in Fairview as part of that outbreak, according to the state report released Thursday. That figure does not include 51 earlier infections at the Fairview fruit plant or seven among its farmworkers in Cornelius.

Seven other ZIP codes across Oregon recorded at least 10 new infections: two locations in Salem, one area of east Portland, one area of North Portland, part of Hillsboro, Warm Springs and Woodburn.

The eight locations accounted for about 44% of the 294 new infections that can be tracked by ZIP code in the state’s latest weekly report. The report is based on 4,302 confirmed or presumed infections. State health officials do not disclose precise ZIP code tallies for areas with one to nine cases.

The Oregon Health Authority first began publishing ZIP code breakdowns May 5. The mapping shows infections have so far often broken along socioeconomic lines, and officials have acknowledged disproportionate infection rates among people of color, particularly Hispanics.

Here’s a look at the areas that gained the most new infections:

97024, Fairview

This ZIP code added the most new cases in Oregon, with 39. But it appears virtually all of those were among farmworkers who arrived in Fairview from out of state and were tested immediately.

The huge weekly increased pushed the ZIP code’s cumulative count to 72, the 13th highest in Oregon. It also increased the per capita ranking to the fourth highest in Oregon, even though many of the new cases are not among full-time residents.

97301, Salem

A core Salem ZIP code, this area added 16 new cases, pushing the cumulative tally to 105.

It’s unclear what is driving the new cases, but it’s not because of the Oregon State Penitentiary. State officials are counting those infections in what amounts to an “other” ZIP code category.

This ZIP code is tied for the fourth most in Oregon. But it has a relatively large population, making its per capita count the 26th highest.

97305, Salem

This ZIP code stretches from northeastern Salem through rural farmland up to near Gervais.

It added 15 new cases, increasing its total to 105, tied with its Salem neighbor for fourth most in Oregon. But it also has a large population, leaving it with the 14th highest per capita infection rate.

97266, Portland

This east Portland ZIP code runs from along southeast 82nd Avenue to 122nd from Division Street south to the county line.

Fifteen new infections were reported in this location, raising the total to 56. That’s the 17th most in Oregon, or the 32nd highest rate per population.

97761, Warm Springs

This central Oregon ZIP code covers part of the Warm Springs Reservation.

New infections grew by 14, pushing the total to 30. That’s the 49th most in Oregon. But with a very small population, it’s third most per capita across the state.

97123, Hillsboro

The 97123 ZIP code runs mostly south of Main Street and Baseline Street in Hillsboro, extending south across miles of farmland almost to Newberg.

This Hillsboro ZIP code recorded 11 new infections among residents. Its 113 cumulative infections remain third most in Oregon. (When Oregon first started releasing weekly counts in early May, this ZIP code began with the third most infections.)

It has the 18th highest rate of infections among the population.

97071, Woodburn

This ZIP code covering Woodburn continues to lead the state in infections, with 10 new cases pushing the overall total to 212.

The area has been particularly hard hit, recording the second-highest infection rate per population.

The health authority recently provided rapid testing kits to the area, making access easier. The 10 new cases are the second-lowest increase recorded for this ZIP code in a given week since reporting began, just above last week’s nine new cases.

97203, Portland

This North Portland Zip code, generally running west of North Chautauqua Boulevard, reported 10 new cases.

Its 55 total cases rank 18th statewide but 33rd on a per capita basis.

Other ZIPs

Parts of Portland are seeing an uptick in cases. The 97233, 97216, 97236, 97230 and 97220 ZIP codes in east Portland added a combined 32 infections.

Meanwhile, 97206 in southeast Portland added eight infections, while 97212 finally crossed the measure for a precise tally. That ZIP code, which includes Irvington and Grant Park, has 12 total infections.

Elsewhere, 97058 in The Dalles added six new cases, for a total of 23; 97756 in Redmond added five cases, raising the total to 32; and 97113 in Cornelius added nine, pushing the total to 60.

    Mark Friesen contributed to this report.

This article was originally published by The Oregonian/OregonLive, one of more than a dozen news organizations throughout the state sharing their coverage of the novel coronavirus outbreak to help inform Oregonians about this evolving heath issue.