Town guide

Ontario, Oregon

Ontario is a city in Malheur County, Oregon, home to about 11,842 people across 5.2 square miles. Its ZIP code is 97914.

Homes sold for a median of $191 per square foot in the three months ending August 2026, a balanced market.

Population11,8422,291 per sq mi
Median home value$236,300Census, as estimated by owners
Price per sq ft$191Sold homes, 3 months to August 2026
Sold over asking12%Latest 3 months

ZIP codes in Ontario

1 ZIP code

Each card is that ZIP code’s whole market, including any part outside Ontario. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology

The Ontario guide is on the way

We’re writing up Ontario’s story and what everyday life there is like, for people thinking about moving in.

  • History
  • What it’s like to live there
  • Getting around
  • Things to do

Are you a local agent who knows Ontario well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked

Around Ontario

Distances

Nearest major airportBoise Air Terminal/Gowen Field (BOI)50 miles away
Nearest city of 250,000+Seattle, WA358 miles away
Nearest city of 1 million+Los Angeles, CA696 miles away

Straight-line distances from the center of Ontario; driving is longer.

Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.

Who represents Ontario

Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.

Population over time

Ontario had 11,645 residents in the 2020 census, up 6% since 2000.

It’s the 53rd largest of 420 towns in Oregon by population.

Malheur County grew from 4,203 residents in 1900 to 31,571 in 2020.

Ontario population by census2000: 10,985, 2010: 11,366, 2020: 11,64510,985200011,366201011,6452020

Malheur County, 1900–2020

Malheur County population, 1900 to 20201900: 4,203, 1910: 8,601, 1920: 10,907, 1930: 11,269, 1940: 19,767, 1950: 23,223, 1960: 22,764, 1970: 23,169, 1980: 26,896, 1990: 26,038, 2000: 31,615, 2010: 31,313, 2020: 31,5714K’00’1011K’20’3020K’40’5023K’60’7027K’80’9032K’00’1032K’20

Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).

Weather by month

Average highs peak around 93°F in summer, and winter lows average 22°F. About 10.1 inches of rain and melted snow fall in a typical year.

Average high and low temperature and precipitation by month near OntarioJan: high 36°F, low 23°F, 1.3 in; Feb: high 44°F, low 26°F, 0.8 in; Mar: high 56°F, low 32°F, 1 in; Apr: high 63°F, low 38°F, 0.9 in; May: high 74°F, low 47°F, 1.4 in; Jun: high 82°F, low 54°F, 0.7 in; Jul: high 93°F, low 60°F, 0.3 in; Aug: high 91°F, low 57°F, 0.1 in; Sep: high 81°F, low 47°F, 0.3 in; Oct: high 65°F, low 36°F, 0.8 in; Nov: high 47°F, low 28°F, 0.9 in; Dec: high 36°F, low 22°F, 1.6 in36°23°Jan1.344°26°Feb0.856°32°Mar1.063°38°Apr0.974°47°May1.482°54°Jun0.793°60°Jul0.391°57°Aug0.181°47°Sep0.365°36°Oct0.847°28°Nov0.936°22°Dec1.6Rain and melted snow, inches

Source: NOAA 1991–2020 climate normals, Ontario Ksrv, OR weather station (about a mile away).

Jobs in Malheur County

8,527 jobs at 718 businesses in Malheur County. The biggest industries by employees:

Largest industries in Malheur CountyRetail trade: 2,273 jobs; Health care and social assistance: 1,553 jobs; Hotels and restaurants: 1,300 jobs; Manufacturing: 1,028 jobs; Wholesale trade: 477 jobs; Professional services: 361 jobs; Other services: 278 jobs; Transportation and warehousing: 272 jobsRetail trade 27% Health care and social assistance 18% Hotels and restaurants 15% Manufacturing 12% Wholesale trade 6% Professional services 4% Other services 3% Transportation and warehousing 3%

Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).

Health care

348 doctors and other health care providers list an office in Ontario.

Nearest hospitals

  • Saint Alphonsus Medical Center OntarioGeneral hospital · emergency room · CMS rating 2 of 5 · Ontario1.1 miles
  • Weiser Memorial HospitalCritical access hospital · emergency room · Weiser14.3 miles
  • Valor HealthCritical access hospital · emergency room · Emmett27.0 miles

Providers with an office here

Primary care doctors21
Specialist doctors26
Dentists20
Nurse practitioners and physician assistants50
Mental health providers205
Physical and occupational therapists17
Optometrists5
Chiropractors4
Pharmacies10

Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.

Places in and around Ontario

Parks (5 nearby)

  • Beck-Kiwanis Park · 34 acres0.5 mi
  • Ontario State Recreation Site · 20 acres0.5 mi
  • Lions Park · 6 acres1.1 mi
  • Laxson Park · 2 acres0.9 mi

Grocery stores (2 nearby)

  • Red Apple Marketplace1.2 mi
  • Ontario Mini Market & Produce1.5 mi

Pharmacies

  • Walgreens2.1 mi
  • The Prescription Pad3.0 mi

Libraries (1 nearby)

  • Ontario Community Library1.2 mi

Theaters and performance venues

  • Amphitheater2.8 mi

Counts are within about 1.5 miles of the center of town.

Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.

Colleges, teams and notable people

Established in 1899.

Colleges and universities

  • Treasure Valley Community College

Notable people born here

  • Phyllis McGinley (1905) · American writer and poet (1905–1978)

Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.

Schools in Ontario

Public schools here are run by Annex SD 29, Oregon Department of Education, Ontario SD 8C. Check each district’s attendance zones for a specific address.

Public schools (7)
SchoolGradesStudentsTypeDistance
Annex Charter SchoolOntarioK–12131Charter13.5 mi
Four Rivers Community SchoolOntarioK–12367Charter1.5 mi
May Roberts Primary SchoolOntarioK–1302Public0.7 mi
Aiken Elementary SchoolOntario2–3333Public0.9 mi
Alameda Intermediate SchoolOntario4–5355Public1.7 mi
Ontario Middle SchoolOntario6–8471Public1.1 mi
Ontario High SchoolOntario9–12709Public0.8 mi
Private schools (1)
SchoolGradesStudentsAffiliationDistance
St Peter Catholic SchoolOntarioPre-K–633Roman Catholic1.0 mi

Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.

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Where Ontario is

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Towns near Ontario

All Oregon towns →

Shares ZIP codes with Annex.

Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.