Radon Levels by Zip Code |
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This data is for informational purposes only. It is compiled by the Oregon Health Division from long-term tests (more than 90 days), conducted primarily by homeowners in living areas of residences.
Indoor radon concentrations are influenced by weather, season, geology, type of construction and heating, ventilation and air conditioning systems. Therefore, this data should not be used, in general, to substitute for radon tests in homes.
The Health Division recommends testing all residences, specifically the living areas, on a long-term basis, to evaluate the annual average concentration. When the annual average concentration in a living area of a home exceeds 4 pCi/liter, it is recommended that measures be taken to lower the concentration to below the 4 pCi/liter level.
Additional information can be obtained from the Oregon Health Division, Radon Information Line (971) 673-0490.
Download the pdf Radon Concentrations by Zip Code
Radon Concentrations by Zip Code
in pCi/liter
Zip |
Total Records |
Max |
Min |
Avg |
> 4 pCi/l |
97002 |
2 |
1.7 |
1.0 |
1.4 |
0 |
97004 |
5 |
2.7 |
0.6 |
1.7 |
0 |
97005 |
37 |
3.7 |
0.2 |
1.4 |
0 |
97006 |
27 |
6.6 |
0.1 |
1.6 |
2 |
97007 |
29 |
15.4 |
0.2 |
2.6 |
4 |
97009 |
12 |
4.2 |
1.0 |
2.5 |
1 |
97011 |
1 |
2.7 |
2.7 |
2.7 |
0 |
97013 |
5 |
1.7 |
0.4 |
1.0 |
0 |
97015 |
7 |
4.3 |
0.4 |
2.8 |
2 |
97018 |
1 |
3.0 |
3.0 |
3.0 |
0 |
97019 |
5 |
2.2 |
0.6 |
1.7 |
0 |
97020 |
2 |
2.2 |
2.2 |
2.2 |
0 |
97021 |
10 |
3.2 |
0.3 |
1.2 |
0 |
97022 |
2 |
0.8 |
0.8 |
0.8 |
0 |
97023 |
40 |
6.3 |
0.4 |
2.3 |
5 |
97027 |
3 |
2.0 |
1.7 |
1.8 |
0 |
97030 |
63 |
10.1 |
0.1 |
2.4 |
7 |
97031 |
27 |
5.9 |
0.2 |
1.8 |
2 |
97032 |
2 |
2.0 |
1.5 |
1.8 |
0 |
97034 |
53 |
13.3 |
0.1 |
2.3 |
9 |
97035 |
35 |
10.3 |
0.1 |
1.7 |
2 |
97037 |
26 |
7.4 |
0.2 |
2.0 |
2 |
97038 |
3 |
1.0 |
0.7 |
0.8 |
0 |
97041 |
18 |
3.3 |
0.2 |
1.2 |
0 |
97042 |
2 |
3.8 |
0.8 |
2.3 |
0 |
97045 |
26 |
6.4 |
0.5 |
2.2 |
2 |
97048 |
1 |
1.6 |
1.6 |
1.6 |
0 |
97049 |
26 |
1.4 |
0.2 |
0.6 |
0 |
97051 |
3 |
6.0 |
1.6 |
3.4 |
1 |
97054 |
1 |
0.6 |
0.6 |
0.6 |
0 |
97055 |
5 |
7.8 |
0.2 |
2.9 |
1 |
97056 |
2 |
3.9 |
1.1 |
2.5 |
0 |
97058 |
9 |
3.4 |
0.2 |
0.9 |
0 |
97060 |
14 |
3.4 |
0.1 |
1.6 |
0 |
97062 |
18 |
11.7 |
0.2 |
2.2 |
3 |
97063 |
1 |
1.0 |
1.0 |
1.0 |
0 |
97064 |
1 |
1.4 |
1.4 |
1.4 |
0 |
97067 |
1 |
1.9 |
1.9 |
1.9 |
0 |
97068 |
30 |
25.5 |
0.1 |
4.5 |
11 |
97070 |
9 |
5.2 |
0.3 |
2.7 |
3 |
97071 |
5 |
4.7 |
0.8 |
2.4 |
1 |
97075 |
3 |
0.5 |
0.1 |
0.3 |
0 |
97080 |
17 |
2.4 |
0.1 |
1.2 |
0 |
97101 |
1 |
2.4 |
2.4 |
2.4 |
0 |
97103 |
26 |
8.7 |
0.1 |
2.3 |
5 |
97106 |
5 |
133.6* |
1.2 |
29.5 |
2 |
97109 |
1 |
4.1 |
4.1 |
4.1 |
1 |
97110 |
1 |
0.1 |
0.1 |
0.1 |
0 |
97111 |
1 |
0.6 |
0.6 |
0.6 |
0 |
97112 |
1 |
1.0 |
1.0 |
1.0 |
0 |
97113 |
3 |
13.9 |
2.5 |
6.9 |
2 |
97114 |
1 |
1.3 |
1.3 |
1.3 |
0 |
97115 |
1 |
3.8 |
3.8 |
3.8 |
0 |
97116 |
10 |
8.2 |
0.5 |
2.5 |
1 |
97119 |
2 |
3.1 |
2.1 |
2.6 |
0 |
97121 |
1 |
0.3 |
0.3 |
0.3 |
0 |
97122 |
2 |
3.9 |
2.8 |
3.3 |
0 |
97123 |
18 |
20.9 |
0.6 |
4.6 |
7 |
97124 |
14 |
4.6 |
0.4 |
1.6 |
1 |
97128 |
12 |
5.6 |
0.3 |
1.3 |
1 |
97132 |
10 |
6.6 |
1.0 |
2.5 |
1 |
97134 |
1 |
2.2 |
2.2 |
2.2 |
0 |
97135 |
1 |
5.7 |
5.7 |
5.7 |
1 |
97138 |
5 |
0.8 |
0.1 |
0.5 |
0 |
97140 |
10 |
4.8 |
0.5 |
2.6 |
2 |
97141 |
7 |
6.8 |
0.3 |
3.3 |
2 |
97143 |
1 |
1.0 |
1.0 |
1.0 |
0 |
97146 |
5 |
1.0 |
0.1 |
0.4 |
0 |
97148 |
2 |
5.8 |
1.9 |
3.8 |
1 |
97201 |
56 |
5.6 |
0.1 |
1.4 |
3 |
97202 |
51 |
7.5 |
0.1 |
2.7 |
8 |
97203 |
55 |
9.6 |
0.1 |
2.5 |
11 |
97204 |
12 |
3.9 |
0.3 |
1.6 |
0 |
97206 |
21 |
15.2 |
0.9 |
4.6 |
7 |
97207 |
1 |
1.1 |
1.1 |
1.1 |
0 |
97208 |
7 |
3.0 |
0.1 |
1.4 |
0 |
97209 |
3 |
2.7 |
0.9 |
1.6 |
0 |
97210 |
121 |
19.9 |
0.1 |
1.3 |
8 |
97211 |
49 |
35.5 |
0.4 |
5.0 |
25 |
97212 |
132 |
25.5 |
0.1 |
4.5 |
48 |
97213 |
106 |
34.2 |
0.5 |
5.2 |
54 |
97214 |
29 |
6.5 |
0.2 |
2.2 |
5 |
97215 |
37 |
6.5 |
0.4 |
2.0 |
1 |
97216 |
12 |
14.2 |
0.9 |
3.2 |
2 |
97217 |
32 |
19.0 |
0.2 |
4.4 |
13 |
97218 |
27 |
14.3 |
0.2 |
4.3 |
11 |
97219 |
67 |
6.1 |
0.1 |
1.3 |
3 |
97220 |
39 |
33.9 |
0.3 |
6.2 |
16 |
97221 |
42 |
7.0 |
0.2 |
1.6 |
3 |
97222 |
19 |
7.2 |
0.2 |
2.1 |
4 |
97223 |
42 |
8.3 |
0.2 |
1.9 |
3 |
97224 |
26 |
3.8 |
0.1 |
1.4 |
0 |
97225 |
48 |
17.5 |
0.3 |
2.6 |
10 |
97227 |
3 |
1.0 |
0.2 |
0.5 |
0 |
97229 |
27 |
4.6 |
0.2 |
1.3 |
1 |
97230 |
33 |
27.4 |
0.5 |
3.6 |
7 |
97231 |
4 |
5.9 |
1.0 |
3.4 |
2 |
97232 |
25 |
20.8 |
0.6 |
3.5 |
6 |
97233 |
9 |
21.9 |
0.5 |
4.3 |
3 |
97236 |
19 |
13.7 |
0.3 |
3.6 |
5 |
97240 |
1 |
3.9 |
3.9 |
3.9 |
0 |
97266 |
11 |
12.0 |
0.5 |
3.3 |
2 |
97267 |
22 |
6.9 |
0.3 |
1.9 |
2 |
97268 |
1 |
5.2 |
5.2 |
5.2 |
1 |
97301 |
26 |
7.2 |
0.3 |
2.1 |
3 |
97302 |
53 |
12.5 |
0.2 |
2.7 |
10 |
97303 |
14 |
2.9 |
0.4 |
1.2 |
0 |
97304 |
35 |
48.8 |
0.3 |
8.2 |
17 |
97305 |
7 |
4.3 |
0.7 |
1.7 |
1 |
97306 |
20 |
25.2 |
0.2 |
3.5 |
3 |
97308 |
16 |
1.6 |
0.1 |
0.5 |
0 |
97309 |
1 |
0.5 |
0.5 |
0.5 |
0 |
97310 |
12 |
1.7 |
0.2 |
0.9 |
0 |
97321 |
38 |
4.3 |
0.1 |
1.2 |
1 |
97324 |
1 |
0.6 |
0.6 |
0.6 |
0 |
97325 |
6 |
9.0 |
0.2 |
3.6 |
2 |
97327 |
1 |
0.1 |
0.1 |
0.1 |
0 |
97329 |
1 |
2.7 |
2.7 |
2.7 |
0 |
97330 |
43 |
8.7 |
0.1 |
1.1 |
4 |
97333 |
24 |
5.5 |
0.1 |
1.3 |
2 |
97338 |
25 |
6.0 |
0.1 |
1.6 |
1 |
97339 |
2 |
0.6 |
0.4 |
0.5 |
0 |
97344 |
1 |
9.4 |
9.4 |
9.4 |
1 |
97351 |
4 |
2.4 |
0.9 |
1.7 |
0 |
97352 |
5 |
21.5 |
0.2 |
5.8 |
2 |
97355 |
12 |
3.8 |
0.3 |
1.6 |
0 |
97359 |
1 |
0.6 |
0.6 |
0.6 |
0 |
97361 |
3 |
1.5 |
0.3 |
1.0 |
0 |
97362 |
1 |
1.2 |
1.2 |
1.2 |
0 |
97364 |
1 |
2.0 |
2.0 |
2.0 |
0 |
97365 |
1 |
0.3 |
0.3 |
0.3 |
0 |
97367 |
1 |
0.5 |
0.5 |
0.5 |
0 |
97368 |
3 |
1.5 |
0.1 |
0.8 |
0 |
97370 |
9 |
2.9 |
0.2 |
1.1 |
0 |
97372 |
1 |
0.8 |
0.8 |
0.8 |
0 |
97374 |
4 |
1.7 |
1.2 |
1.4 |
0 |
97375 |
3 |
2.4 |
1.7 |
1.9 |
0 |
97377 |
2 |
1.0 |
0.5 |
0.8 |
0 |
97378 |
1 |
6.1 |
6.1 |
6.1 |
1 |
97381 |
6 |
7.5 |
0.4 |
4.2 |
3 |
97385 |
4 |
8.4 |
0.5 |
3.1 |
1 |
97386 |
7 |
3.3 |
0.3 |
1.2 |
0 |
97388 |
3 |
4.0 |
0.7 |
2.0 |
0 |
97389 |
2 |
0.9 |
0.3 |
0.6 |
0 |
97391 |
1 |
3.2 |
3.2 |
3.2 |
0 |
97392 |
2 |
0.8 |
0.7 |
0.8 |
0 |
97394 |
2 |
2.7 |
0.8 |
1.8 |
0 |
97401 |
26 |
6.6 |
0.2 |
1.3 |
1 |
97402 |
10 |
15.4 |
0.5 |
3.6 |
2 |
97403 |
18 |
4.1 |
0.3 |
1.6 |
2 |
97404 |
10 |
4.3 |
0.1 |
1.9 |
1 |
97405 |
31 |
6.4 |
0.1 |
1.6 |
2 |
97415 |
3 |
0.8 |
0.7 |
0.8 |
0 |
97417 |
1 |
0.7 |
0.7 |
0.7 |
0 |
97420 |
20 |
7.5 |
0.1 |
1.8 |
2 |
97423 |
6 |
6.8 |
1.1 |
2.5 |
1 |
97424 |
7 |
6.5 |
0.7 |
2.0 |
1 |
97426 |
3 |
1.9 |
0.3 |
0.9 |
0 |
97436 |
1 |
1.2 |
1.2 |
1.2 |
0 |
97439 |
1 |
1.7 |
1.7 |
1.7 |
0 |
97442 |
1 |
1.5 |
1.5 |
1.5 |
0 |
97443 |
1 |
0.6 |
0.6 |
0.6 |
0 |
97448 |
1 |
0.7 |
0.7 |
0.7 |
0 |
97449 |
1 |
0.9 |
0.9 |
0.9 |
0 |
97451 |
1 |
0.4 |
0.4 |
0.4 |
0 |
97455 |
1 |
1.3 |
1.3 |
1.3 |
0 |
97456 |
5 |
2.2 |
0.1 |
1.2 |
0 |
97457 |
2 |
7.0 |
0.4 |
3.7 |
1 |
97458 |
3 |
2.1 |
0.3 |
1.1 |
0 |
97459 |
11 |
15.6 |
0.1 |
2.1 |
1 |
97465 |
1 |
0.9 |
0.9 |
0.9 |
0 |
97469 |
1 |
0.1 |
0.1 |
0.1 |
0 |
97470 |
17 |
3.0 |
0.1 |
0.8 |
0 |
97477 |
3 |
2.3 |
0.5 |
1.1 |
0 |
97478 |
3 |
1.3 |
0.3 |
0.7 |
0 |
97479 |
1 |
6.2 |
6.2 |
6.2 |
1 |
97484 |
1 |
1.1 |
1.1 |
1.1 |
0 |
97489 |
1 |
0.9 |
0.9 |
0.9 |
0 |
97495 |
1 |
0.3 |
0.3 |
0.3 |
0 |
97496 |
2 |
3.4 |
1.8 |
2.6 |
0 |
97497 |
2 |
0.5 |
0.4 |
0.5 |
0 |
97499 |
1 |
2.2 |
2.2 |
2.2 |
0 |
97501 |
31 |
5.7 |
0.1 |
1.5 |
3 |
97502 |
7 |
0.7 |
0.4 |
0.6 |
0 |
97503 |
8 |
5.3 |
0.1 |
1.3 |
1 |
97504 |
60 |
6.0 |
0.2 |
1.3 |
3 |
97520 |
19 |
5.9 |
0.1 |
1.3 |
1 |
97523 |
1 |
1.2 |
1.2 |
1.2 |
0 |
97524 |
12 |
1.4 |
0.2 |
0.7 |
0 |
97525 |
4 |
2.1 |
0.1 |
0.7 |
0 |
97526 |
29 |
5.3 |
0.1 |
0.7 |
1 |
97527 |
21 |
3.2 |
0.1 |
0.7 |
0 |
97530 |
12 |
4.1 |
0.1 |
0.9 |
1 |
97532 |
4 |
2.0 |
0.5 |
1.2 |
0 |
97535 |
4 |
0.8 |
0.3 |
0.5 |
0 |
97537 |
11 |
1.2 |
0.1 |
0.5 |
0 |
97538 |
3 |
15.4 |
1.0 |
6.0 |
1 |
97539 |
3 |
0.7 |
0.2 |
0.4 |
0 |
97540 |
5 |
6.0 |
0.5 |
2.1 |
1 |
97541 |
1 |
0.2 |
0.2 |
0.2 |
0 |
97544 |
3 |
0.8 |
0.2 |
0.5 |
0 |
97601 |
27 |
5.7 |
0.1 |
0.8 |
1 |
97603 |
21 |
3.1 |
0.1 |
0.6 |
0 |
97622 |
3 |
4.0 |
3.3 |
3.8 |
0 |
97624 |
4 |
1.2 |
0.3 |
0.8 |
0 |
97627 |
1 |
0.2 |
0.2 |
0.2 |
0 |
97630 |
16 |
11.5 |
0.2 |
2.4 |
2 |
97701 |
30 |
1.3 |
0.1 |
0.5 |
0 |
97702 |
10 |
2.7 |
0.1 |
1.0 |
0 |
97707 |
2 |
0.7 |
0.4 |
0.6 |
0 |
97709 |
2 |
2.4 |
0.9 |
1.6 |
0 |
97720 |
12 |
3.6 |
0.3 |
1.4 |
0 |
97733 |
11 |
3.2 |
0.1 |
0.9 |
0 |
97734 |
1 |
0.4 |
0.4 |
0.4 |
0 |
97739 |
2 |
1.3 |
1.0 |
1.1 |
0 |
97741 |
1 |
0.9 |
0.9 |
0.9 |
0 |
97750 |
2 |
4.9 |
0.9 |
2.9 |
1 |
97754 |
11 |
3.6 |
0.5 |
2.4 |
0 |
97756 |
10 |
1.3 |
0.2 |
0.4 |
0 |
97759 |
6 |
7.2 |
0.4 |
2.5 |
1 |
97760 |
2 |
1.3 |
0.1 |
0.7 |
0 |
97801 |
24 |
7.7 |
0.1 |
1.9 |
2 |
97814 |
12 |
10.0 |
0.1 |
3.4 |
3 |
97818 |
1 |
1.0 |
1.0 |
1.0 |
0 |
97823 |
1 |
2.1 |
2.1 |
2.1 |
0 |
97826 |
2 |
2.5 |
0.6 |
1.6 |
0 |
97828 |
3 |
9.9 |
2.1 |
5.3 |
1 |
97830 |
1 |
1.1 |
1.1 |
1.1 |
0 |
97833 |
2 |
4.7 |
2.3 |
3.5 |
1 |
97834 |
6 |
8.0 |
1.3 |
5.0 |
5 |
97836 |
2 |
3.2 |
2.9 |
3.0 |
0 |
97837 |
1 |
0.2 |
0.2 |
0.2 |
0 |
97838 |
8 |
4.0 |
0.6 |
2.3 |
0 |
97839 |
1 |
1.7 |
1.7 |
1.7 |
0 |
97846 |
3 |
2.9 |
0.2 |
1.2 |
0 |
97850 |
5 |
3.5 |
0.8 |
2.3 |
0 |
97862 |
13 |
14.0 |
0.7 |
5.0 |
7 |
97865 |
1 |
1.0 |
1.0 |
1.0 |
0 |
97868 |
1 |
0.6 |
0.6 |
0.6 |
0 |
97870 |
2 |
4.1 |
1.0 |
2.5 |
1 |
97875 |
2 |
1.3 |
0.1 |
0.7 |
0 |
97877 |
1 |
2.1 |
2.1 |
2.1 |
0 |
97885 |
2 |
0.2 |
0.1 |
0.2 |
0 |
97886 |
2 |
1.8 |
1.0 |
1.4 |
0 |
97901 |
1 |
1.4 |
1.4 |
1.4 |
0 |
97913 |
2 |
1.3 |
0.8 |
1.1 |
0 |
97914 |
6 |
1.8 |
0.6 |
1.3 |
0 |
97918 |
5 |
2.7 |
0.7 |
1.3 |
0 |
* This value was not used to calculate the average for this zip code.
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