Open Government Portal

About this information

Open data is defined as structured data that is machine-readable, freely shared, used and built on without restrictions.

The key things to remember about open data are:

  • #Availability and access#: the data must be available as a whole and at no more than a reasonable reproduction cost, preferably by downloading over the internet. The data must also be available in a convenient and modifiable form.
  • #Re-use and redistribution#: the data must be provided under terms that permit re-use and redistribution including the intermixing with other datasets.
  • #Universal participation#: everyone must be able to use, re-use and redistribute. There should be no discrimination against fields of endeavour or against persons or groups. For example, 'non-commercial' restrictions that would prevent 'commercial' use, or restrictions of use for certain purposes (e.g. only in education), are not allowed.
47469 records
Provincial / Territorial

Every day, schools, child care centres and licensed home child care agencies report to the Ministry of Education on children, …

Record Modified: Apr 17, 2026
Record Released: Jan 27, 2021
Publisher: Government of Ontario
Formats: CSV XLSX JSON HTML
Keywords: COVID-19 health health and wellness schools Health Education and Training

Get statistical data on harvested area, marketed production, average price, farm value and average yield for dry onion in Ontario. …

Record Modified: Apr 17, 2026
Record Released: Jan 27, 2021
Publisher: Government of Ontario
Formats: XLSX HTML
Keywords: Onion production Agriculture and Food Economy and Business Business and economy
Provincial / Territorial

Get data on the supply and disposition for Ontario oats. Includes statistical data on: * harvested area * yield * …

Record Modified: Apr 17, 2026
Record Released: Aug 30, 2023
Publisher: Government of Ontario
Formats: XLSX HTML
Keywords: Données Ontario

From 2018 to 2023, ministry staff collected water quality samples year-round from seven rivers that flow into Lake Ontario in …

Record Modified: Apr 17, 2026
Record Released: Mar 18, 2026
Publisher: Government of Ontario
Formats: XLSX PDF HTML
Keywords: great lakes water
Provincial / Territorial

This is a list of licensed and out-of-province eligible laboratories that can test Ontario drinking water. Prior to submitting samples, …

Record Modified: Apr 17, 2026
Record Released: Mar 18, 2026
Publisher: Government of Ontario
Formats: CSV HTML
Keywords: drinking water testing lead inorganic organic Microbiological Licensed laboratories Eligible laboratories
Provincial / Territorial

Number of overnight visitors to Ontario grouped by selected overseas countries.

Record Modified: Apr 17, 2026
Record Released: Aug 30, 2023
Publisher: Government of Ontario
Formats: XLSX HTML
Keywords: Culture and Recreation Economy and Business Travel and recreation

Get statistical data on harvested area, marketed production, average price, farm value and average yield for tomatoes in Ontario. Statistical …

Record Modified: Apr 17, 2026
Record Released: Jan 27, 2021
Publisher: Government of Ontario
Formats: XLSX HTML
Keywords: Tomato production Agriculture and Food Economy and Business Business and economy

Access the list of facilities registered to a technical standard to manage industrial air pollution by the Ministry of the …

Record Modified: Apr 17, 2026
Record Released: Nov 1, 2023
Publisher: Government of Ontario
Formats: CSV HTML
Keywords: air pollution air
Record Modified: Apr 17, 2026
Record Released: Feb 10, 2021
Publisher: Government of Ontario
Formats: CSV HTML
Keywords: COVID-19 health health and wellness Health

Get statistical data on harvested area, marketed production, average price, farm value and average yield for cucumber in Ontario. Statistical …

Record Modified: Apr 17, 2026
Record Released: Jan 27, 2021
Publisher: Government of Ontario
Formats: XLSX HTML
Keywords: Cucumber production Agriculture and Food Economy and Business Business and economy