Ontario demographics profile

Population density (sq mi)4738791
Median age38.939.137.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)63%57%55%
Families w/ Kids under 1842%43%43%
Speak English78%91%79%
Speak Spanish22%5%13%
Ontario, WI has a population of 475 and is the 19,849th largest city in the United States. The population density is 473 per sq mi which is 441% higher than the Wisconsin average and 422% higher than the national average. The median age in Ontario is 39 which is approximately 1% lower than the Wisconsin average of 39. In Ontario, 63% of the population over 15 years of age are married, 78% speak English and 22% speak Spanish. 75% of Ontario residents were born in Wisconsin, 19% were born out of state, 0% were born outside of the United States and 6% were foreign born.
For Sale
For Rent

Find real estate listings

Find rental listings

Did you know?

  • The population density in Ontario is 441% higher than Wisconsin.
  • The median age in Ontario is 1% lower than Wisconsin.
  • In Ontario 76.21% of the population is White.
  • In Ontario 0.00% of the population is Black or African American.
  • In Ontario 0.21% of the population is Asian.

Compare Ontario, WI Demographics To Other Cities

Ontario population breakdown by race

Black or African American0.00%6.29%12.63%
American Indian0.84%0.89%0.82%
Native Hawaiian0.00%0.02%0.18%
Mixed race0.63%2.19%3.06%
Other race22.11%1.83%4.75%
In Ontario, 24.6% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Ontario age breakdown

Marital status

Age of children in married couples

Source: The Ontario, WI demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
Are you looking to buy or sell?
What style of home are you
What is your
When are you looking to
ASAP1-3 mos.3-6 mos.6-9 mos.1 yr+
Connect with top real estate agents
By submitting this form, you consent to receive text messages, emails, and/or calls (may be recorded; and may be direct, autodialed or use pre-recorded/artificial voices even if on the Do Not Call list) from AreaVibes or our partner real estate professionals and their network of service providers, about your inquiry or the home purchase/rental process. Messaging and/or data rates may apply. Consent is not a requirement or condition to receive real estate services. You hereby further confirm that checking this box creates an electronic signature with the same effect as a handwritten signature.