Minnesota Cities Ranked by Indoor Radon Levels

Measured averages from Airthings devices across Minnesota, USA. Action level: 4 pCi/L — the threshold at which remediation is recommended.

Pelican Rapids has the highest measured indoor radon in Minnesota at 7.1 pCi/L, based on Airthings measurements across 178 cities.

Updated August 16, 2026

Highest city

7.1pCi/L

Pelican Rapids

Minnesota city average

2.9pCi/L

across 178 cities

Above action level

21/ 178

cities

Minnesota Cities Ranked by Indoor Radon Levels
#	Location	Avg level	Monitors	vs action level
1	Pelican Rapids	7.1 pCi/L	8	1.8× over
2	North Mankato	7.0 pCi/L	18	1.7× over
3	Albert Lea	6.5 pCi/L	14	1.6× over
4	Lakeland	6.2 pCi/L	7	1.5× over
5	New Ulm	6.1 pCi/L	7	1.5× over
6	Stewartville	6.1 pCi/L	6	1.5× over
7	Moorhead	5.6 pCi/L	23	1.4× over
8	Saint Paul Park	5.4 pCi/L	7	1.4× over
9	Glencoe	5.3 pCi/L	8	1.3× over
10	Sauk Rapids	5.1 pCi/L	6	1.3× over
11	Cold Spring	5.1 pCi/L	9	1.3× over
12	Monticello	5.0 pCi/L	9	1.3× over
13	Oakport	5.0 pCi/L	19	1.2× over
14	Owatonna	4.7 pCi/L	18	1.2× over
15	Mankato	4.6 pCi/L	38	1.2× over
16	Red Lake Falls	4.5 pCi/L	6	1.1× over
17	Baxter	4.5 pCi/L	6	1.1× over
18	Mora	4.4 pCi/L	6	1.1× over
19	New Prague	4.2 pCi/L	10	1.1× over
20	Fairmont	4.1 pCi/L	7	1.0× over
21	Tonka Bay	4.1 pCi/L	14	1.0× over
✓ Below EPA action level (4 pCi/L)
22	Hutchinson	4.0 pCi/L	8	1.0× under
23	Faribault	4.0 pCi/L	10	1.0× under
24	Little Falls	4.0 pCi/L	7	1.0× under
25	Grand Rapids	3.9 pCi/L	13	1.0× under
26	Bagley	3.9 pCi/L	7	1.0× under
27	Long Lake	3.9 pCi/L	12	1.0× under
28	Brooklyn Center	3.8 pCi/L	16	1.0× under
29	Alexandria	3.8 pCi/L	12	0.9× under
30	Hastings	3.8 pCi/L	17	0.9× under
31	Clearwater	3.7 pCi/L	8	0.9× under
32	Dayton	3.7 pCi/L	12	0.9× under
33	La Crescent	3.7 pCi/L	7	0.9× under
34	Willmar	3.7 pCi/L	11	0.9× under
35	Oronoco	3.6 pCi/L	27	0.9× under
36	Red Wing	3.6 pCi/L	18	0.9× under
37	Chaska	3.6 pCi/L	21	0.9× under
38	Farmington	3.6 pCi/L	19	0.9× under
39	Melrose	3.6 pCi/L	8	0.9× under
40	Rochester	3.6 pCi/L	124	0.9× under
41	Perham	3.5 pCi/L	7	0.9× under
42	Thief River Falls	3.5 pCi/L	9	0.9× under
43	Afton	3.5 pCi/L	15	0.9× under
44	Fergus Falls	3.4 pCi/L	23	0.9× under
45	Shakopee	3.4 pCi/L	43	0.9× under
46	Burnsville	3.4 pCi/L	39	0.9× under
47	Grand Marais	3.4 pCi/L	13	0.8× under
48	Buffalo	3.4 pCi/L	15	0.8× under
49	Northfield	3.4 pCi/L	20	0.8× under
50	Fridley	3.3 pCi/L	15	0.8× under
51	Maplewood	3.3 pCi/L	31	0.8× under
52	Waconia	3.3 pCi/L	21	0.8× under
53	Springfield	3.3 pCi/L	6	0.8× under
54	Elko New Market	3.3 pCi/L	13	0.8× under
55	Detroit Lakes	3.2 pCi/L	9	0.8× under
56	Wayzata	3.1 pCi/L	56	0.8× under
57	Victoria	3.1 pCi/L	37	0.8× under
58	Dellwood	3.1 pCi/L	10	0.8× under
59	Arden Hills	3.1 pCi/L	26	0.8× under
60	Savage	3.1 pCi/L	73	0.8× under
61	Oak Park Heights	3.0 pCi/L	6	0.8× under
62	West Coon Rapids	3.0 pCi/L	23	0.8× under
63	Golden Valley	3.0 pCi/L	47	0.8× under
64	North Saint Paul	3.0 pCi/L	17	0.8× under
65	Orono	3.0 pCi/L	14	0.8× under
66	Cross Lake	3.0 pCi/L	11	0.7× under
67	Austin	3.0 pCi/L	6	0.7× under
68	Walker	3.0 pCi/L	29	0.7× under
69	Apple Valley	2.9 pCi/L	70	0.7× under
70	Bemidji	2.9 pCi/L	10	0.7× under
71	Dundas	2.9 pCi/L	9	0.7× under
72	Roseville	2.8 pCi/L	40	0.7× under
73	East Gull Lake	2.8 pCi/L	10	0.7× under
74	Winona	2.8 pCi/L	12	0.7× under
75	Anoka	2.8 pCi/L	13	0.7× under
76	Cologne	2.8 pCi/L	7	0.7× under
77	Bloomington	2.8 pCi/L	65	0.7× under
78	Saint Bonifacius	2.8 pCi/L	6	0.7× under
79	Cloquet	2.7 pCi/L	10	0.7× under
80	Mound	2.7 pCi/L	15	0.7× under
81	Dilworth	2.7 pCi/L	9	0.7× under
82	Hermantown	2.7 pCi/L	14	0.7× under
83	Saint Cloud	2.7 pCi/L	15	0.7× under
84	Minnetonka	2.7 pCi/L	35	0.7× under
85	Saint Augusta	2.7 pCi/L	10	0.7× under
86	Lake Saint Croix Beach	2.7 pCi/L	10	0.7× under
87	Morris	2.7 pCi/L	8	0.7× under
88	Chanhassen	2.6 pCi/L	56	0.7× under
89	Richfield	2.6 pCi/L	200	0.7× under
90	Independence	2.6 pCi/L	9	0.7× under
91	Robbinsdale	2.6 pCi/L	26	0.7× under
92	Aitkin	2.6 pCi/L	8	0.7× under
93	Elk River	2.6 pCi/L	36	0.7× under
94	Hopkins	2.6 pCi/L	46	0.6× under
95	Scandia	2.6 pCi/L	9	0.6× under
96	Big Lake	2.6 pCi/L	11	0.6× under
97	Otsego	2.6 pCi/L	6	0.6× under
98	Plymouth	2.6 pCi/L	66	0.6× under
99	Albertville	2.5 pCi/L	11	0.6× under
100	Maple Grove	2.5 pCi/L	85	0.6× under
101	Eden Prairie	2.5 pCi/L	115	0.6× under
102	North Oaks	2.5 pCi/L	15	0.6× under
103	Lauderdale	2.5 pCi/L	57	0.6× under
104	Edina	2.5 pCi/L	118	0.6× under
105	Sartell	2.5 pCi/L	16	0.6× under
106	Osseo	2.5 pCi/L	26	0.6× under
107	Little Canada	2.4 pCi/L	23	0.6× under
108	Shorewood	2.4 pCi/L	17	0.6× under
109	Columbia Heights	2.4 pCi/L	25	0.6× under
110	Mendota Heights	2.4 pCi/L	88	0.6× under
111	Woodbury	2.4 pCi/L	88	0.6× under
112	Rosemount	2.4 pCi/L	68	0.6× under
113	Falcon Heights	2.4 pCi/L	73	0.6× under
114	Carver	2.4 pCi/L	17	0.6× under
115	Minnetonka Mills	2.3 pCi/L	48	0.6× under
116	Saint Louis Park	2.3 pCi/L	144	0.6× under
117	New Brighton	2.3 pCi/L	43	0.6× under
118	Watertown	2.3 pCi/L	6	0.6× under
119	Cottage Grove	2.3 pCi/L	48	0.6× under
120	Ramsey	2.3 pCi/L	20	0.6× under
121	Eagan	2.3 pCi/L	96	0.6× under
122	White Bear Lake	2.3 pCi/L	30	0.6× under
123	Brooklyn Park	2.2 pCi/L	19	0.6× under
124	Excelsior	2.2 pCi/L	22	0.6× under
125	Crystal	2.2 pCi/L	20	0.6× under
126	Duluth	2.2 pCi/L	43	0.6× under
127	Arnold	2.2 pCi/L	18	0.6× under
128	Inver Grove Heights	2.2 pCi/L	36	0.6× under
129	Lakeville	2.2 pCi/L	60	0.6× under
130	New Hope	2.2 pCi/L	50	0.6× under
131	Mahtomedi	2.2 pCi/L	8	0.6× under
132	Prior Lake	2.2 pCi/L	73	0.5× under
133	Saint Paul	2.2 pCi/L	79	0.5× under
134	Spring Park	2.1 pCi/L	10	0.5× under
135	Delano	2.1 pCi/L	10	0.5× under
136	Minnetrista	2.1 pCi/L	7	0.5× under
137	Rogers	2.1 pCi/L	20	0.5× under
138	Jordan	2.1 pCi/L	10	0.5× under
139	Moose Lake	2.1 pCi/L	6	0.5× under
140	Park Rapids	2.1 pCi/L	12	0.5× under
141	Coon Rapids	2.1 pCi/L	16	0.5× under
142	Minneapolis	2.0 pCi/L	226	0.5× under
143	Saint Anthony	2.0 pCi/L	51	0.5× under
144	North Branch	2.0 pCi/L	6	0.5× under
145	Stillwater	2.0 pCi/L	34	0.5× under
146	West Saint Paul	2.0 pCi/L	43	0.5× under
147	Saint Michael	2.0 pCi/L	18	0.5× under
148	Vadnais Heights	2.0 pCi/L	9	0.5× under
149	Deephaven	2.0 pCi/L	11	0.5× under
150	Proctor	1.9 pCi/L	9	0.5× under
151	South Saint Paul	1.9 pCi/L	13	0.5× under
152	Andover	1.9 pCi/L	30	0.5× under
153	Forest Lake	1.9 pCi/L	13	0.5× under
154	Oakdale	1.8 pCi/L	16	0.5× under
155	Lonsdale	1.8 pCi/L	18	0.5× under
156	Oak Grove	1.8 pCi/L	9	0.5× under
157	Birchwood	1.8 pCi/L	16	0.5× under
158	Champlin	1.8 pCi/L	14	0.4× under
159	Becker	1.7 pCi/L	9	0.4× under
160	Shoreview	1.7 pCi/L	29	0.4× under
161	Warroad	1.6 pCi/L	14	0.4× under
162	Zimmerman	1.6 pCi/L	12	0.4× under
163	Lake Elmo	1.6 pCi/L	26	0.4× under
164	Wadena	1.6 pCi/L	6	0.4× under
165	Milaca	1.5 pCi/L	7	0.4× under
166	Mounds View	1.5 pCi/L	7	0.4× under
167	Crosby	1.5 pCi/L	6	0.4× under
168	Nowthen	1.5 pCi/L	9	0.4× under
169	Corcoran	1.5 pCi/L	54	0.4× under
170	Bayport	1.4 pCi/L	8	0.3× under
171	Lino Lakes	1.4 pCi/L	14	0.3× under
172	Hugo	1.3 pCi/L	15	0.3× under
173	Medina	1.3 pCi/L	8	0.3× under
174	Ham Lake	1.2 pCi/L	18	0.3× under
175	Circle Pines	1.1 pCi/L	16	0.3× under
176	Blaine	1.1 pCi/L	16	0.3× under
177	Centerville	0.8 pCi/L	6	0.2× under
178	Lexington	0.8 pCi/L	8	0.2× under

See USA cities ranked by radon level See all States ranked by radon level