Highest indoor radon communities (2025, survey vintage carried)

Carried from Health Canada 2012–2013 CMA radon-thoron survey means (not an annual retest).

PublisherOpenStats

Rank	Place	Province	Score
1	Bathurst	New Brunswick	385.1
2	Regina	Saskatchewan	301.7
3	Niverville	Manitoba	256.7
4	Steinbach	Manitoba	256.7
5	Winnipeg	Manitoba	256.7
6	The Pas	Manitoba	242.5
7	Granby	Quebec	238.2
8	Sherbrooke	Quebec	238.2
9	Brandon	Manitoba	202.9
10	Dauphin	Manitoba	202.9
11	Neepawa	Manitoba	202.9
12	Campbellton	New Brunswick	196.5
13	Miramichi	New Brunswick	195.2
14	Halifax	Nova Scotia	194.7
15	Kentville	Nova Scotia	194.7
16	Truro	Nova Scotia	194.7
17	Castlegar	British Columbia	190.9
18	Nelson	British Columbia	190.9
19	Trail	British Columbia	190.9
20	Whitehorse	Yukon	182
21	Edmundston	New Brunswick	178.3
22	Grand Falls	New Brunswick	178.3
23	Cranbrook	British Columbia	174.9
24	Creston	British Columbia	174.9
25	Fernie	British Columbia	174.9
26	Kimberley	British Columbia	174.9
27	Swift Current	Saskatchewan	165.2
28	Sackville	New Brunswick	165
29	Shediac	New Brunswick	165
30	Kingston	Ontario	161
31	Thunder Bay	Ontario	159.1
32	Amherstburg	Ontario	156.4
33	Essex	Ontario	156.4
34	Kingsville	Ontario	156.4
35	Lakeshore	Ontario	156.4
36	LaSalle	Ontario	156.4
37	Tecumseh	Ontario	156.4
38	Windsor	Ontario	156.4
39	Fredericton	New Brunswick	154.2
40	Oromocto	New Brunswick	154.2
41	Woodstock	New Brunswick	154.2
42	Martensville	Saskatchewan	151.7
43	Saskatoon	Saskatchewan	151.7
44	Warman	Saskatchewan	151.7
45	Yorkton	Saskatchewan	151.5
46	Selkirk	Manitoba	146.8
47	Stonewall	Manitoba	146.8
48	Armstrong	British Columbia	143.8
49	Oliver	British Columbia	143.8
50	Osoyoos	British Columbia	143.8
51	Penticton	British Columbia	143.8
52	Vernon	British Columbia	143.8
53	Brockville	Ontario	138.7
54	Carleton Place	Ontario	138.7
55	Gananoque	Ontario	138.7
56	Mississippi Mills	Ontario	138.7
57	Perth	Ontario	138.7
58	Smiths Falls	Ontario	138.7
59	Kelowna	British Columbia	135.3
60	West Kelowna	British Columbia	135.3
61	Airdrie	Alberta	135.1
62	Calgary	Alberta	135.1
63	Chestermere	Alberta	135.1
64	Cochrane	Alberta	135.1
65	High River	Alberta	135.1
66	Okotoks	Alberta	135.1
67	Strathmore	Alberta	135.1
68	Chatham-Kent	Ontario	134.8
69	Sudbury	Ontario	131.2
70	Guelph	Ontario	130.8
71	Laval	Quebec	126.1
72	Longueuil	Quebec	126.1
73	Montreal	Quebec	126.1
74	Terrebonne	Quebec	126.1
75	Moose Jaw	Saskatchewan	125.9
76	Melfort	Saskatchewan	124.9
77	Corner Brook	Newfoundland and Labrador	123.9
78	Stephenville	Newfoundland and Labrador	123.9
79	Dryden	Ontario	119.9
80	Fort Frances	Ontario	119.9
81	Kenora	Ontario	119.9
82	Levis	Quebec	119.7
83	Quebec City	Quebec	119.7
84	Estevan	Saskatchewan	118.9
85	Weyburn	Saskatchewan	118.9
86	Quispamsis	New Brunswick	118.4
87	Rothesay	New Brunswick	118.4
88	Saint John	New Brunswick	118.4
89	Matane	Quebec	117.2
90	Rimouski	Quebec	117.2
91	Rivière-du-Loup	Quebec	117.2
92	Cobourg	Ontario	114.9
93	Hanover	Ontario	114.9
94	Kawartha Lakes	Ontario	114.9
95	Owen Sound	Ontario	114.9
96	Port Hope	Ontario	114.9
97	Saugeen Shores	Ontario	114.9
98	South Bruce Peninsula	Ontario	114.9
99	The Blue Mountains	Ontario	114.9
100	Beaumont	Alberta	114.1
101	Devon	Alberta	114.1
102	Edmonton	Alberta	114.1
103	Fort Saskatchewan	Alberta	114.1
104	Leduc	Alberta	114.1
105	Morinville	Alberta	114.1
106	Spruce Grove	Alberta	114.1
107	St. Albert	Alberta	114.1
108	Stony Plain	Alberta	114.1
109	Prince George	British Columbia	112.3
110	Quesnel	British Columbia	112.3
111	Ottawa	Ontario	111.7
112	Gatineau	Quebec	111.7
113	Morden	Manitoba	111.6
114	Portage la Prairie	Manitoba	111.6
115	Thompson	Manitoba	111.6
116	Winkler	Manitoba	111.6
117	Brant	Ontario	111.4
118	Brantford	Ontario	111.4
119	Norfolk	Ontario	111.4
120	Saint-Georges	Quebec	110.9
121	Sainte-Marie	Quebec	110.9
122	Thetford Mines	Quebec	110.9
123	Ingersoll	Ontario	110.4
124	Tillsonburg	Ontario	110.4
125	Woodstock	Ontario	110.4
126	Lloydminster (Part)	Saskatchewan	110.4
127	Meadow Lake	Saskatchewan	110.4
128	North Battleford	Saskatchewan	110.4
129	Lachute	Quebec	108.3
130	Sainte-Agathe-des-Monts	Quebec	108.3
131	Greater Napanee	Ontario	108
132	Goderich	Ontario	107.7
133	Kirkland Lake	Ontario	107.6
134	Temiskaming Shores	Ontario	107.6
135	St. Marys	Ontario	106.1
136	Stratford	Ontario	106.1
137	Centre Wellington	Ontario	105.5
138	Erin	Ontario	105.5
139	Minto	Ontario	105.5
140	Shelburne	Ontario	105.5
141	Bonnyville	Alberta	104.8
142	Cold Lake	Alberta	104.8
143	Edson	Alberta	104.8
144	Fort McMurray	Alberta	104.8
145	Grande Prairie	Alberta	104.8
146	Hinton	Alberta	104.8
147	Peace River	Alberta	104.8
148	Slave Lake	Alberta	104.8
149	St. Paul	Alberta	104.8
150	Whitecourt	Alberta	104.8
151	Blackfalds	Alberta	103.9
152	Camrose	Alberta	103.9
153	Drayton Valley	Alberta	103.9
154	Drumheller	Alberta	103.9
155	Innisfail	Alberta	103.9
156	Lacombe	Alberta	103.9
157	Lloydminster (Part)	Alberta	103.9
158	Olds	Alberta	103.9
159	Ponoka	Alberta	103.9
160	Red Deer	Alberta	103.9
161	Rocky Mountain House	Alberta	103.9
162	Stettler	Alberta	103.9
163	Sylvan Lake	Alberta	103.9
164	Vegreville	Alberta	103.9
165	Wainwright	Alberta	103.9
166	Wetaskiwin	Alberta	103.9
167	Arnprior	Ontario	103.4
168	Pembroke	Ontario	103.4
169	Petawawa	Ontario	103.4
170	Renfrew	Ontario	103.4
171	Belleville	Ontario	102.9
172	Prince Edward County	Ontario	102.9
173	Quinte West	Ontario	102.9
174	Prince Albert	Saskatchewan	101.4
175	Belleville - Quinte West	Ontario	101.1
176	Peterborough	Ontario	101.1
177	Humboldt	Saskatchewan	99.8
178	Saguenay	Quebec	96.1
179	Aylmer	Ontario	95.9
180	Fort Erie	Ontario	95.7
181	Lincoln	Ontario	95.7
182	Niagara-on-the-Lake	Ontario	95.7
183	Pelham	Ontario	95.7
184	Port Colborne	Ontario	95.7
185	Thorold	Ontario	95.7
186	Welland	Ontario	95.7
187	Petrolia	Ontario	94.7
188	Plympton-Wyoming	Ontario	94.7
189	Sarnia	Ontario	94.7
190	Dawson Creek	British Columbia	94.5
191	Fort St. John	British Columbia	94.5
192	Conception Bay South	Newfoundland and Labrador	94.5
193	Mount Pearl	Newfoundland and Labrador	94.5
194	Paradise	Newfoundland and Labrador	94.5
195	Portugal Cove-St. Philip's	Newfoundland and Labrador	94.5
196	St. John's	Newfoundland and Labrador	94.5
197	Torbay	Newfoundland and Labrador	94.5
198	Espanola	Ontario	94.3
199	Greater Sudbury	Ontario	94.3
200	Prince Rupert	British Columbia	93.5
201	Smithers	British Columbia	93.5
202	Terrace	British Columbia	93.5
203	Elliot Lake	Ontario	93.3
204	Sault Ste. Marie	Ontario	93.3
205	Brooks	Alberta	92.6
206	Coaldale	Alberta	92.6
207	Lethbridge	Alberta	92.6
208	Medicine Hat	Alberta	92.6
209	Redcliff	Alberta	92.6
210	Taber	Alberta	92.6
211	Cowansville	Quebec	92.3
212	Saint-Hyacinthe	Quebec	92.3
213	Salaberry-de-Valleyfield	Quebec	92.3
214	Sorel-Tracy	Quebec	92.3
215	Clarence-Rockland	Ontario	89.9
216	Cornwall	Ontario	89.9
217	Hawkesbury	Ontario	89.9
218	Banff	Alberta	88.7
219	Canmore	Alberta	88.7
220	Didsbury	Alberta	88.7
221	Barrie	Ontario	87
222	Innisfil	Ontario	87
223	Yellowknife	Northwest Territories	85.9
224	London	Ontario	85.1
225	St. Thomas	Ontario	85.1
226	Burlington	Ontario	84.9
227	Grimsby	Ontario	84.9
228	Hamilton	Ontario	84.9
229	Oakville	Ontario	84.9
230	Gander	Newfoundland and Labrador	82.8
231	Grand Falls-Windsor	Newfoundland and Labrador	82.8
232	Dieppe	New Brunswick	81.4
233	Moncton	New Brunswick	81.4
234	Riverview	New Brunswick	81.4
235	Bay Roberts	Newfoundland and Labrador	77.7
236	Clarenville	Newfoundland and Labrador	77.7
237	Marystown	Newfoundland and Labrador	77.7
238	Baie-Comeau	Quebec	74.9
239	Sept-Îles	Quebec	74.9
240	Amos	Quebec	72.5
241	Rouyn-Noranda	Quebec	72.5
242	Val-d'Or	Quebec	72.5
243	Kamloops	British Columbia	72.4
244	Merritt	British Columbia	72.4
245	Revelstoke	British Columbia	72.4
246	Salmon Arm	British Columbia	72.4
247	Williams Lake	British Columbia	72.4
248	Alma	Quebec	70.9
249	Dolbeau-Mistassini	Quebec	70.9
250	Kitchener	Ontario	66.5
251	Waterloo	Ontario	66.5
252	Cambridge	Ontario	65
253	Oshawa	Ontario	63.4
254	Whitby	Ontario	63.4
255	Haldimand County	Ontario	61.9
256	Norfolk County	Ontario	61.9
257	Abbotsford	British Columbia	61.4
258	Cochrane	Ontario	61
259	Kapuskasing	Ontario	61
260	Timmins	Ontario	61
261	Ajax	Ontario	59.7
262	Aurora	Ontario	59.7
263	Bradford West Gwillimbury	Ontario	59.7
264	Brampton	Ontario	59.7
265	Caledon	Ontario	59.7
266	East Gwillimbury	Ontario	59.7
267	Georgina	Ontario	59.7
268	Halton Hills	Ontario	59.7
269	Markham	Ontario	59.7
270	Milton	Ontario	59.7
271	Mississauga	Ontario	59.7
272	Mono	Ontario	59.7
273	New Tecumseth	Ontario	59.7
274	Orangeville	Ontario	59.7
275	Pickering	Ontario	59.7
276	Richmond Hill	Ontario	59.7
277	Toronto	Ontario	59.7
278	Vaughan	Ontario	59.7
279	Whitchurch-Stouffville	Ontario	59.7
280	Chilliwack	British Columbia	58.3
281	Joliette	Quebec	57.7
282	Niagara Falls	Ontario	57.3
283	St. Catharines	Ontario	57.3
284	Bracebridge	Ontario	56.8
285	Collingwood	Ontario	56.8
286	Essa	Ontario	56.8
287	Gravenhurst	Ontario	56.8
288	Huntsville	Ontario	56.8
289	Midland	Ontario	56.8
290	Orillia	Ontario	56.8
291	Penetanguishene	Ontario	56.8
292	Wasaga Beach	Ontario	56.8
293	Happy Valley-Goose Bay	Newfoundland and Labrador	55.9
294	Labrador City	Newfoundland and Labrador	55.9
295	Powell River	British Columbia	54.7
296	Squamish	British Columbia	54.7
297	North Bay	Ontario	48.3
298	Parry Sound	Ontario	48.3
299	Trois-Rivieres	Quebec	45.1
300	Duncan	British Columbia	44.3
301	Ladysmith	British Columbia	44.3
302	Nanaimo	British Columbia	44.3
303	Parksville	British Columbia	44.3
304	Port Alberni	British Columbia	44.3
305	Qualicum Beach	British Columbia	44.3
306	Drummondville	Quebec	40.6
307	Shawinigan	Quebec	40.6
308	Victoriaville	Quebec	40.6
309	Colwood	British Columbia	40.5
310	Langford	British Columbia	40.5
311	Sidney	British Columbia	40.5
312	Victoria	British Columbia	40.5
313	View Royal	British Columbia	40.5
314	Burnaby	British Columbia	35.4
315	Coquitlam	British Columbia	35.4
316	Delta	British Columbia	35.4
317	Langley	British Columbia	35.4
318	Maple Ridge	British Columbia	35.4
319	New Westminster	British Columbia	35.4
320	North Vancouver	British Columbia	35.4
321	Pitt Meadows	British Columbia	35.4
322	Port Coquitlam	British Columbia	35.4
323	Port Moody	British Columbia	35.4
324	Richmond	British Columbia	35.4
325	Surrey	British Columbia	35.4
326	Vancouver	British Columbia	35.4
327	White Rock	British Columbia	35.4

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