Prince Edward Island

Geography and Geology

Prince Edward Island is located in the Gulf of St. Lawrence, separated from Nova Scotia and New Brunswick by the Northumberland Strait, a distance of approximately ten kilometres. The island's land area is 5,686.03 square kilometres, though a 2026 measurement of the main island alone is 5,740.96 square kilometres, ranking it as the 105th largest island worldwide. The island's bedrock was formed between 250 and 300 million years ago from silt, sand, and gravel deposited by freshwater streams flowing from ancient mountains into a sedimentary basin. Following the retreat of the Pleistocene glaciers about 15,000 years ago, glacial debris such as till was left behind, and rising ocean levels flooded a connecting land strip, permanently creating the island. The land then rose as it rebounded from the weight of the ice, further increasing its elevation relative to the surrounding water. While no commercial mineral deposits have been found, exploration for hydrocarbons has a long history on the island.

Key events in resource exploration on Prince Edward Island include the drilling of the first reported well, Hillsborough No.#1, in Charlottetown Harbour in 1944. This was the world's first offshore well. The most recent well drilled was New Harmony No.#1 in 2007. Since the mid-1990s, all wells showing promising gas deposits have been stimulated through hydraulic fracturing. In total, twenty exploration wells for hydrocarbon resources have been drilled on the island and offshore.

• The first reported exploration well, Hillsborough No.#1, was drilled in Charlottetown Harbour in 1944, noted as the world's first offshore well.
• As of 2026, the government reported the island has 0.08 trillion cubic feet of "technically recoverable" natural gas.
• A total of twenty exploration wells for hydrocarbon resources have been drilled on the island and offshore.
• The most recent exploration well was New Harmony No.#1, drilled in 2007.
• Since the resurgence of exploration in the mid-1990s, all wells showing promising gas deposits have been stimulated using hydraulic fracture, or fracking.
• All oil and gas activities are governed by the provincial Oil and Natural Gas Act R.S.P.E.I. 1988, Cap. 0-5 and its associated regulations and orders.

Climate and Environment

The island experiences a maritime climate characterized by moderate temperatures and changeable weather, strongly influenced by the surrounding Gulf of St. Lawrence. As such, it is generally milder than many areas of New Brunswick and Nova Scotia due to the warmer waters of the Gulf. Summers are mild with July and August daytime highs averaging 23 °C, though temperatures can exceed 30 °C. Winters are cold and long with January and February highs averaging -3.3 °C, and a mean January temperature of -7 °C. The island receives an average of 855 millimetres of rain and 2.85 metres of snow annually. The climate is considered more humid continental than oceanic because the Gulf of St. Lawrence freezes over, eliminating its moderating effect and leading to frequent temperature swings from clashes of cold Arctic air and milder Atlantic air. The province is entirely dependent on groundwater for its drinking water supply, sourced from approximately 305 high-capacity wells as of December 2018. The city of Charlottetown sources 92 percent of its daily 18-thousand-cubic-metre water supply from the Wintere River watershed, a system that faced supply difficulties in 2011, 2012, and 2013 before water meters were installed to manage usage.

Historically, the island was home to species like moose, bear, caribou, and wolf, but these are no longer present due to hunting and habitat disruption. Current common species include red foxes, coyote, blue jays, and robins, while skunks and raccoons are common non-native species. The island's unique biodiversity also includes species discovered there, such as the ascomycete Jahnula apiospora, collected from submerged wood in a freshwater creek in 2008. Several species are at risk on the island, and their protection is a concern for provincial conservation efforts.

• Piping plovers are a species at risk on PEI.
• The American eel is listed as a species at risk.
• Bobolinks are considered a species at risk.
• The little brown bat is a species at risk in the province.
• Beach pinweed is a plant species at risk on the island.

North Atlantic right whales, one of the rarest whale species, were once thought to be rare visitors to St. Lawrence regions. Annual concentrations were discovered off Percé in 1995. There have been gradual population increases across the regions since 1998. Since 2014, notable numbers of whales have been recorded around Cape Breton to Prince Edward Island. In 2015, between 35 to 40 whales were seen in these areas.

Indigenous History and Etymology

The island is part of the Mi'kmaw homeland of Mi'kma'ki, specifically within the district historically known as Epekwitk aq Piktuk. In the Mi'kmaw language, Mi'kmawi'simk, the island is called Abegweit or Epekwitk, meaning "land cradled on the waves." Mi'kmaw oral history and archaeology indicate an ancient presence on the island, with stories describing its creation by the cultural hero Glooscap or the Great Spirit, who was said to have formed Minegoo from dark red crescent-shaped clay. The earliest stories involve Glooscap, who, after painting the world, dipped his brush into a blend of all colours to create his favourite island, and when he slept, mainland Nova Scotia was his bed and Epekwitk his pillow. Another legend recalls a time when the world was covered in water and the being Sebanees arrived in a great boat made of ice, kjiktu’lnu, carrying animals and fish, with the island's unique land formation resulting from the melting of this ice boat. The island was governed by a system of Saqamaq (community chiefs), a women's council (Saqama'sgw), and wampum keepers (Putu's), under the broader jurisdiction of the Sante' Mawio'mi and the Grand Chief (Kji Sagamaw). Today, the Peace and Friendship Treaties protect the island, and rather than district-level governance, administration is overseen by band governments, specifically the Abegweit and Lennox Island First Nations on Epekwitk. The island was first seen by a European when French explorer Jacques Cartier arrived in 1543. When France established the colony of Acadia in 1604, they named it Île Saint-Jean. After becoming a British colony in 1769, it was renamed in 1798 after Prince Edward, Duke of Kent and Strathearn, the fourth son of King George III and father of the future Queen Victoria, which is why he has been called the "Father of the Canadian Crown."

Colonial Era and Confederation

The 18th century was marked by conflict between French and British forces on the island, which was a part of Acadia. Duvivier and his men retreated up the Northeast River, pursued until reinforced by Acadian militia and Mi'kmaq, who drove the New Englanders back to their boats, resulting in nine New Englanders killed, wounded, or captured. French and Mi'kmaw forces later counterattacked in July 1746, led by Joseph-Michel Legardeur de Croisille et de Montesson with over 500 men, including 200 Mi'kmaq, killing forty New Englanders and capturing the rest at Port-La-Joye, with Montesson commended for his first independent command. The Acadian population grew to nearly 5,000 by the 1750s as Acadians fled British expulsion from Nova Scotia during the Acadian Exodus. After the fall of Louisbourg in 1758, the British deported most Acadians from the island in a campaign led by Colonel Andrew Rollo under orders from General Jeffery Amherst. This tragic event saw hundreds perish in shipwrecks. The transport ship Duke William sank on December 13, 1758, with 364 deaths, the Violet sank a day earlier with 280 deaths, and the Ruby sank several days later with 213 on board. France formally ceded the island to Britain in the 1763 Treaty of Paris. Administered as part of Nova Scotia, the island was established as the separate colony of St. John's Island in 1769. A survey led by Samuel Holland divided the land into 67 lots, which were allocated by lottery on July 1, 1767, to absentee landlords in England, primarily supporters of King George III. This system created lasting anger among settlers who could not gain title to their land and faced high rents, an issue known as the "Land Question," exacerbated by the fact that many landlords did not satisfy conditions attached to the land grants regarding upkeep and settlement. The colony was renamed Prince Edward Island in 1798.

Key events leading to Prince Edward Island joining Canada include the Charlottetown Conference in 1864. This conference was the first in a series of meetings that led to Canadian Confederation on July 1, 1867. Prince Edward Island initially chose not to join Confederation at that time. The colony later faced bankruptcy from the Land Question and construction of a railroad. Prince Edward Island joined as Canada's seventh province on July 1, 1873.

1. In 1864, the island hosted the Charlottetown Conference to discuss a union of the Maritime provinces.
2. The conference became the first in a series of meetings which led to Canadian Confederation on July 1, 1867.
3. Prince Edward Island initially balked at Confederation and chose not to join in 1867.
4. Facing bankruptcy from the unresolved Land Question and construction of a railroad, the island entered negotiations.
5. Prince Edward Island joined as Canada's seventh province on July 1, 1873.

Economy and Demographics

Agriculture is a central part of Prince Edward Island's economy, with the province producing 25 percent of Canada's potatoes, an industry accounting for $1 billion every year and 50% of farm receipts. Other important industries include fisheries, tourism, aerospace, biotechnology, information technology and renewable energy. The island's population of 182,989 as of 2026 reflects its long settlement history, with Acadian, Scottish, Irish, and English surnames being dominant, as it is one of Canada's older settled areas. It is the most densely populated province in Canada. The province's complete reliance on groundwater has led to ongoing discussions about resource management, particularly concerning the use of high-capacity wells for agricultural irrigation. A proposed Water Act was tabled as a discussion paper on July 8, 2015, to begin a consultation process in the autumn of that year. The potato industry has pressed the government to lift a moratorium on such wells for irrigation, highlighting the tension between agricultural development and sustainable water use on the island.

Major Urban Areas and Infrastructure

Charlottetown is the capital and largest city of Prince Edward Island, serving as the province's political, cultural, and economic centre. The city's drinking water is drawn from thirteen wells in three wellfields, primarily sourced from the Wintere River watershed, and the water removed is naturally filtered through the aquifer and replenished by precipitation. Some of Charlottetown's water infrastructure dates back to 1888, leading to concerns about lead pipes in older areas and the implementation of a lead-replacement program working with residents. In 1967, Charlottetown residents voted in favour of water fluoridation through a plebiscite, and under provincial legislation, the water utility is required to report to its residents annually and conduct regular sampling of the water, with an overview included in each annual report. The province maintains drinking water testing through the Prince Edward Island Analytical Laboratories, which assesses water according to the recommendations of the Guidelines for Canadian Drinking Water Quality published by Health Canada. Detailed information about water quality in PEI communities and watersheds is available on the provincial government's official website, providing a summary of ongoing testing.

Parameters tested in PEI drinking water include alkalinity, cadmium, calcium, chloride, chromium, iron, magnesium, manganese, nickel, nitrate, pH, phosphorus, potassium, sodium, and sulfate. Testing also checks for the presence of pesticides. These parameters are assessed according to the recommendations of the Guidelines for Canadian Drinking Water Quality. Average drinking water quality results are available for these parameters.

• Alkalinity and pH levels are monitored.
• Metals such as cadmium, calcium, chromium, iron, magnesium, manganese, and nickel are tested.
• Chloride, nitrate, phosphorus, potassium, sodium, and sulfate levels are measured.
• The presence of pesticides is also analyzed in the water.

Water testing services are provided for a variety of clients through the Prince Edward Island Analytical Laboratories. The laboratories assess water quality according to the recommendations of the Guidelines for Canadian Drinking Water Quality published by Health Canada. The province is completely dependent on groundwater for its source of drinking water. The provincial government's official website provides a summary of the ongoing testing of drinking water.

Questions about Prince Edward Island

Why is Prince Edward Island called the Birthplace of Confederation?

Prince Edward Island earned this nickname because it hosted the Charlottetown Conference in 1864. This conference became the first in a series of meetings which led to Canadian Confederation on July 1, 1867. While the conference was originally intended to discuss a union of the Maritime provinces, it expanded to include delegates from the Province of Canada. Although Prince Edward Island did not join Confederation until 1873, the initial discussions began in its capital.

What is the population of Prince Edward Island?

According to Statistics Canada, the province of Prince Edward Island had 182,989 residents in 2026. It is the smallest province by population. It has the highest population density in Canada. As one of Canada's older settled areas, its population still reflects the origins of its earliest settlers, with Acadian, Scottish, Irish, and English surnames being dominant.

What is Prince Edward Island's main industry?

Farming is central to the island's economy. It produces 25 percent of Canada's potatoes. The potato industry accounts for one billion dollars every year and 50 percent of farm receipts. Other important industries include fisheries, tourism, aerospace, biotechnology, information technology and renewable energy.

What does the name 'Epekwitk' mean?

The island is known in Mi'kmawi'simk, the indigenous Mi'kmaw language, as Epekwitk or Abegweit. It is roughly translated as "land cradled on the waves". This name reflects the island's position within the Mi'kmaw homeland of Mi'kma'ki. It is deeply embedded in Mi'kmaw creation stories and oral history.

When did Prince Edward Island join Canada?

Prince Edward Island joined as Canada's seventh province on July 1, 1873. The island initially balked at Confederation in 1867. It later faced bankruptcy from the Land Question and construction of a railroad. These financial pressures led the colony to join Canada six years after its initial formation.

What is the climate like in Prince Edward Island?

Prince Edward Island has a maritime climate that is moderate and strongly influenced by the Gulf of St. Lawrence. During July and August, the average daytime high is 23 degrees Celsius. In January and February, the average daytime high is minus 3.3 degrees Celsius. The island receives an average yearly snowfall of 2.85 metres. Winters are moderately cold and long but are milder than inland locations, with frequent temperature swings.

Sources and further reading

• Prince Edward Island (Wikipedia)
• Prince Edward Island National Park, Parks Canada (parks.canada.ca)
• Prince Edward Island National Park | Tourism PEI (tourismpei.com)

Checked by the Your Space Hamilton desk. Last updated 2026-10-18.