Cornwall, Ontario
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Cornwall

Cornwall drinking water hardness is 130 mg/L on OpenStats, plus City Score rankings and local readings.

Civic arena · hometown HUD

Cornwall

Census_agglomeration61k pop
45XP
#241

#241 of 343

45% City Score XP

RisingDirectSurface
City Score XP

7/8 pillars on the board

45%#241

Decade trail

Cornwall packs 7 of eight open-data pillars into its composite standing. Tap a rival below to see how the hometown stacks up head-to-head.

Cornwall drinking water

Direct municipal reading

Hardness, pH, and lead from municipal reports on the OpenStats water atlas.

Hardness
130 mg/L
hard
pH
7.3
Lead
0.2 μg/L

Full Cornwall water quality report →City Score rankingsCompare cities · vs Belleville - Quinte West · vs Kawartha LakesHardness guide

Watershed to tap · system map

How Cornwall's water works

Open full map

Source, treatment, and distribution for Cornwall from municipal and provincial water records. Hardness and grade are published readings.

Local numbers for Cornwall

Drinking water first, then permits, tax, internet, radon, and hazards for Cornwall.

How Cornwall scores

Rising+40

Cornwall sits at City Score rank #241 with a standing of 45%, from 7 of 8 open-data pillars (tax, construction, connectivity, indoor air, water, seismic hazard, growth, safety). Missing pillars score at median standing so thin coverage cannot inflate the rank. Rising 40 places versus 2022 (#281 → #241).

Latest owned placements: building permit value rank #322 of 343 (2025); indoor radon rank #281 of 343 at 80 Bq/m³ survey mean; residential mill rate rank #5 of 343 (13.72 mill rate). Full tables and method notes live on each study edition; atlas readings for the same slug open from the topic buttons.

#241
Arena rank (of 343)
45%
City Score
7
Pillars observed
Rising+40
vs 2022
#281 → #241

Arena loadout

Topic XP bars

Arena rank #241 of 343

City Score

7/8 pillars · main XP bar

45%#241
Drinking water

Rank #253

74%
Building permits

Rank #322

6%
Internet

Rank #337

2%
Radon

Rank #281

82%
Hazards

No placement

Property tax

Rank #5

1%

Achievements

Rising +40Direct municipal readingSurface water supply

Hometown notes

Archive

Earlier years: 2026 · 2025 · 2024 · 2023

Cornwall in brief

Cornwall orients itself to the St. Lawrence River before almost anything else. Downtown, Lamoureux Park stretches along the water with Marina 200, the Aquatic Centre, the Cornwall Civic Complex, the Community Museum, Rotary Eco-Gardens, a splash pad, and the Cornwall Recreational Path tying the pieces together. On a summer weekend the park becomes the city's outdoor living room: Canada Day, Arts in the Park, and Cornwall Ribfest all land on that grass. Tax counters now sit on the main floor of the Civic Complex at 100 Water Street East, so even errands pull people toward the waterfront.

West along Highway 2, Guindon Park opens into about 500 acres of trails, river access, the Cornwall BMX Track, and winter ski and snowshoe routes. Locals treat it as a different outing from the downtown strip: longer loops, fat bikes, rowing on the St. Lawrence with the Cornwall Rowing Club, and space that feels farther from Pitt Street than the map suggests. The Benson Centre remains the practical hub for permits and trail passes when someone wants to book a gathering or ride.

Around the harbour, the Port Lands still sit in the conversation as unfinished waterfront business shared with the Mohawk Council of Akwesasne. Cornwall Transit stitches work and school trips across town, and Glen Stor Dun Lodge anchors care for the city and the United Counties of Stormont, Dundas and Glengarry. Put together it is a Seaway-side city that measures a good day by river air, a festival on Lamoureux Park, or a long circuit through Guindon.

Drawn from City of Cornwall - Lamoureux Park, City of Cornwall - Guindon Park, City of Cornwall, Cornwall Standard-Freeholder.

City Score over time

City Score from 2016–2025 across eight open-data pillars. Individual study placements are listed in the panels below.

0%25%50%75%100%2016201720182019202020212022202320242025
OpenStats City Score

Rankings for Cornwall

Each study below is its own ranking. Where a study has more than one edition for this city, the chart shows standing across those years only.

Connectivity · OpenStats

OpenStats Broadband Download Speeds

OpenStats

Cities ranked by estimated best advertised download (Mbps). Anchored to the current ISED National Broadband Data vintage, then backcast along a national speed curve with city-specific fiber-arrival and 50/10 availability paths so relative ranks can change over the decade. Not a claim of audited historical hex maps for every year.

10 editions · 2016–2025

#337
Latest · 2025 · of 343
Score 74.3

Construction · OpenStats

OpenStats Building Permit Value

OpenStats

Cities ranked by calendar-year building permit value. Direct rows sum Statistics Canada Table 34-10-0292-01. Cities without a direct reading use population × provincial per-capita permit intensity (estimated), so every seed city has a year-varying construction signal.

10 editions · 2016–2025

#322
Latest · 2025 · of 343
Score 106358100

Composite · OpenStats

OpenStats City Score

OpenStats

Dimensional average of OpenStats open-data pillars for each panel year 2016–2025: tax, construction, connectivity, indoor air, water, seismic hazard, population growth, and crime severity. Each series is scored 0–1 within its edition; series in the same pillar are averaged, then all eight pillars are averaged with equal weight. Missing pillars score at median standing (0.5). Growth and CSI use StatCan annual tables; permits, mill rates, and broadband use live rows plus documented year-varying estimates where needed. Radon, water, and PGA may be survey/model vintages carried forward and are flagged when static for more than two years. External commercial livability lists are never inputs.

10 editions · 2016–2025

#241
Latest · 2025 · of 343
Score 0.452

Safety · OpenStats

OpenStats Crime Severity Index

OpenStats

Communities ranked by Statistics Canada Crime Severity Index (Table 35-10-0026-01). Rank 1 is highest CSI (worse). Values are CMA where a metro match exists, otherwise provincial CSI. Hometown pages label the grain.

10 editions · 2016–2025

#252
Latest · 2025 · of 343
Score 57.17

Water · OpenStats

OpenStats Drinking Water Hardness

OpenStats

Communities ranked by municipal drinking-water hardness (mg/L as CaCO₃). Hardness changes slowly; the atlas vintage is carried across panel years and flagged when static for more than two years.

10 editions · 2016–2025

#253
Latest · 2025 · of 343
Score 130

Health · OpenStats

OpenStats Highest Indoor Radon

OpenStats

Communities ranked by Health Canada survey mean indoor radon (Bq/m³). Rank 1 is the highest mean. Decade panel years without a new survey carry the CMA survey vintage forward; they are not annual retests.

10 editions · 2016–2025

#281
Latest · 2025 · of 343
Score 80

Growth · OpenStats

OpenStats Population Growth

OpenStats

Cities ranked by year-over-year population growth from Statistics Canada annual CSD estimates (Table 17-10-0155-01). Rank 1 is fastest growth. A few places without a clean CSD match use a provincial-path estimate anchored to seed population.

10 editions · 2016–2025

#89
Latest · 2025 · of 343
Score 0.019720424054789378

Property tax · OpenStats

OpenStats Residential Mill Rates

OpenStats

Municipalities ranked by residential mill rate. Rank 1 is the highest rate. Published municipal years are used when available; gaps are interpolated or follow the provincial median path so the tax pillar moves year to year for every city.

10 editions · 2016–2025

#5
Latest · 2025 · of 343
Score 13.718297420069074

Livability

Maclean's Best Communities

Maclean's

Successor-style municipal livability ranking published by Maclean's for 2019 and 2021 (no 2020 edition).

Single edition · 2021

#8
Published · 2021 · of 415

Only one published edition places Cornwall in this study so far. Open the edition for method notes and the full table.

Original source · Full edition

Worth knowing in Cornwall

Distinctive local notes and places, each linked to its source.

  • Lamoureux Park is named for former MP and House Speaker Lucien Lamoureux and hosts Canada Day, Arts in the Park, and Cornwall Ribfest.

    City of Cornwall

  • Guindon Park covers about 500 acres of smoke-free trails and St. Lawrence access just off Highway 2.

    City of Cornwall

  • Municipal tax and water counter services relocated to the Cornwall Civic Complex at 100 Water Street East.

    City of Cornwall

  • Glen Stor Dun Lodge is a city-owned home serving Cornwall and the United Counties of Stormont, Dundas and Glengarry.

    City of Cornwall

Places to see

Lamoureux Park

Downtown waterfront park with Marina 200, the Civic Complex, Rotary Eco-Gardens, and the Recreational Path. Festival season turns the lawn into Cornwall's main stage.

Guindon Park

West-end river park for hiking, biking, BMX, rowing views, and winter ski or snowshoe trails. The big outdoor counterweight to the downtown waterfront strip.

Cornwall Civic Complex

Waterfront complex overlooking Lamoureux Park, now also home to in-person tax and water services. A practical and civic landmark on Water Street East.

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