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About Hermiston

Hermiston is a city in Umatilla County, in Eastern Oregon, about 7 miles south of the Columbia River and McNary Dam. Wikipedia reports that it was incorporated on July 10, 1907, when two rival townsites merged, and that irrigated farming began in 1908 with the Umatilla Basin Project's Cold Springs Reservoir.

Hermiston in numbers

Measure Hermiston Margin of error (90%)
Population, 2020 Census 19,354 count
Population, ACS 2020-2024 19,546 +/- 32
Population, certified estimate published by the League of Oregon Cities (Portland State University), December 2025 20,296 (+4.9% since 2020) not published
Households 6,564 +/- 363
Owner-occupied share of households 61.7% (4,052 homes) owners +/- 351
Median household income $66,998 +/- $3,849
Median home value (owner-occupied) $266,700 +/- $20,173
Median age 30.9 +/- 1.9
Hispanic or Latino residents 54.5% (10,656 people) +/- 730 people
Owner-occupied homes valued at $300,000 or more 1,605 of 4,052 (39.6%) about +/- 291 homes
Business establishments, ZIP 97838 659 none (Census adds small noise)
Paid employees at those establishments 10,898 none (noise)

A plain reading

Hermiston is young: the median age is 30.9, and the margin of error is about two years either way. About 38 percent of households rent. The median home value is about $267,000, and roughly four in ten owner-occupied homes are valued at $300,000 or more, with a margin of error of a few hundred homes on that count.

A little more than half of residents identify as Hispanic or Latino, and the margin of error on that share is about 4 percentage points. The certified population estimate is 4.9 percent above the 2020 Census count.

How we got these numbers

  • Population, households, tenure, income, home value, age, Hispanic or Latino origin (table B03003) and the home-value brackets come from the Census Bureau's American Community Survey (ACS) 5-year estimates for 2020-2024, tables B01003, B11001, B25003, B19013, B25077, B01002, B03003 and B25075, read through Census Reporter for Hermiston city (Census place 4133700). Dollars are 2024 inflation-adjusted ACS dollars.
  • Homes valued at $300,000 or more are the sum of the B25075 brackets from $300,000 up (973, 437, 130, 44, 21, 0 and 0). The margin of error for that sum is our own square-root-of-summed-squares combination of the published margins, so it is approximate.
  • The 2020 population is the Census count, read from the Census TIGERweb 2020 incorporated places layer.
  • The December 2025 figure is from the League of Oregon Cities table, which says it reflects the December 15, 2025 certification by Portland State University. We read it from the League's table, not from a Portland State table.
  • Business counts are from Census ZIP Code Business Patterns 2023 for ZIP code 97838. They are by ZIP code, not by city limit, and they leave out businesses with no paid employees.

Resumen en español

Hermiston es una ciudad del condado de Umatilla, en el este de Oregon, a unas 7 millas al sur del río Columbia. El Censo de 2020 contó 19,354 habitantes, y la estimación certificada de diciembre de 2025 es de 20,296. Según la encuesta ACS 2020-2024, alrededor del 54 por ciento de los residentes se identifican como hispanos o latinos, con un margen de error de unos 4 puntos porcentuales. El ingreso mediano de los hogares es de unos $66,998 y el valor mediano de las viviendas propias es de unos $266,700. Cerca del 62 por ciento de los hogares son dueños de su casa. Este resumen repite solo datos de esta página; el resto del sitio está en inglés.

Sources

Also from Oregon Living: Oregon Living in Pendleton, Oregon · Oregon Living in La Grande, Oregon · Oregon Living in Baker City, Oregon · Oregon Living in Ontario, Oregon.