Which state has the highest Mold Allergy Score?

Kansas has the highest Mold Allergy Score, at 68, followed by New York (63) and New Jersey (61).

Which state has the lowest Mold Allergy Score?

Hawaii has the lowest Mold Allergy Score, at 19.

What is the median Mold Allergy Score across US states?

The median is 43 across the 50 US states with data.

Where does this mold count by state data come from?

Rankodex compiles it from World Population Review and the primary sources it cites: The Best and Worst U.S. States for Allergies - HouseFresh.

State rankings

Mold Count by State

Name: Mold Count by State
Creator: Rankodex

Kansas has the highest Mold Allergy Score (68), followed by New York (63) and New Jersey (61). Hawaii has the lowest (19).

Environment Health50 states · 1 metricUpdated May 19, 2025Original page

1 source

The Best and Worst U.S. States for Allergies - HouseFresh

ShowingMold Allergy ScoreBetter directionWhether a higher or a lower value is better. A green arrow means higher is better, a red arrow means lower is better, and no arrow means neither.More in the glossary →

50 of 51 states

Compare this metric Add to combined ranking Open full map

Mold Allergy Score

Darker means higher. Click a place to highlight it.

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All 50 ranked

Highest first.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one state; the lines mark the median and the middle half.

Median

Middle half 33.25 – 49.75

Average

41.94

50 states

Highest

Kansas

Lowest

Hawaii

Data

Click a column to sort, a row to highlight that place on the charts.

50 states · # = rank by Mold Allergy Score

#
1	Kansas	68
2	New York	63
3	New Jersey	61
4	Rhode Island	59
5	Kentucky	57
6	Massachusetts	56
7	Illinois	55
8	Ohio	52
8	Michigan	52
10	Tennessee	51
10	Connecticut	51
12	Pennsylvania	50
12	Maryland	50
14	Indiana	49
14	Iowa	49
14	Arkansas	49
17	Louisiana	47
18	North Carolina	46
19	Texas	45
19	Wyoming	45
21	Missouri	44
21	Minnesota	44
21	Nebraska	44
21	West Virginia	44
25	California	43
25	Wisconsin	43
27	New Hampshire	41
28	Colorado	40
28	Oklahoma	40
30	Delaware	38
31	Georgia	37
32	Florida	36
32	South Carolina	36
32	Mississippi	36
35	Utah	35
35	Vermont	35
37	South Dakota	34
38	Virginia	33
38	Montana	33
38	Alaska	33
41	New Mexico	32
42	Oregon	31
43	North Dakota	30
44	Arizona	29
44	Alabama	29
44	Idaho	29
47	Maine	28
48	Washington	25
49	Nevada	21
50	Hawaii	19

What correlates with Mold Allergy Score?

Pearson r against 2,092 other state metrics sharing at least 30 states. Ranks are read by standing: a better rank counts as higher, whether rank 1 is the best place on a list or the worst. Correlation is not causation.

Higher together

Places that have a higher Mold Allergy Score tend to score higher on these (or rank better)

Indoor Allergy Pet Dander ScoreAllergy-Friendly States
r = +0.59 · strong · n = 49
Plot
WWI CasualtiesWWI Casualties by State
r = +0.55 · strong · n = 50
Plot
Tax as % of IncomeLeast Taxed States
r = +0.55 · strong · n = 50
Plot
Estimated TaxesLeast Taxed States
r = +0.55 · strong · n = 50
Plot
World War II CasualtiesWorld War II Casualties by State
r = +0.55 · strong · n = 50
Plot
Nursing Home Health Care Cost per CapitaHealth Care Costs by State
r = +0.54 · strong · n = 50
Plot

Opposite directions

Places that have a higher Mold Allergy Score tend to score lower on these (or rank worse)

State Rank Fed GovtPublic Land by StateA rank: rank 1 is the best
r = +0.62 · strong · n = 50
Plot
% VeteransVeterans Unemployment Benefits by State
r = −0.59 · strong · n = 50
Plot
Debt-To-Income Ratio HighDebt by State
r = −0.57 · strong · n = 50
Plot
Single Family (Min Appraisal Fees in State)Appraisal Fees by State
r = −0.57 · strong · n = 50
Plot
Debt-To-Income Ratio LowDebt by State
r = −0.56 · strong · n = 50
Plot
CarpoolCommute Time by State
r = −0.55 · strong · n = 50
Plot

Quick answers

Which state has the highest Mold Allergy Score?: Kansas has the highest Mold Allergy Score, at 68, followed by New York (63) and New Jersey (61).
Which state has the lowest Mold Allergy Score?: Hawaii has the lowest Mold Allergy Score, at 19.
What is the median Mold Allergy Score across US states?: The median is 43 across the 50 US states with data.
Where does this mold count by state data come from?: Rankodex compiles it from World Population Review and the primary sources it cites: The Best and Worst U.S. States for Allergies - HouseFresh.