An official website of the United States government
2021 Adult Asthma Data: Prevalence Tables and Maps
| State | Sample Sizec |
Male Prevalence (Percent) |
Male Standard Error |
Male 95% CId (Percent) |
|| || |
Sample Sizec |
Female Prevalence (Percent) |
Female Standard Error |
Female 95% CId (Percent) |
|---|---|---|---|---|---|---|---|---|---|
| U.S. Totalf | 199,011 | 6.8 | 0.12 | (6.6–7.0) | || | 229,101 | 12.4 | 0.15 | (12.1–12.7) |
| AL | 1,817 | 5.9 | 0.75 | (4.5–7.4) | || | 2,744 | 13.8 | 0.96 | (11.9–15.7) |
| AK | 2,771 | 5.9 | 0.65 | (4.6–7.2) | || | 2,666 | 12.5 | 0.97 | (10.5–14.4) |
| AZ | 4,995 | 6.5 | 0.47 | (5.6–7.4) | || | 5,586 | 12.2 | 0.61 | (11.0–13.4) |
| AR | 2,226 | 6.8 | 0.76 | (5.3–8.3) | || | 3,098 | 11.1 | 0.95 | (9.2–12.9) |
| CA | 3,376 | 6.9 | 0.58 | (5.8–8.1) | || | 3,319 | 10.6 | 0.69 | (9.2–11.9) |
| CO | 5,294 | 7.1 | 0.43 | (6.3–7.9) | || | 5,094 | 13.7 | 0.60 | (12.6–14.9) |
| CT | 3,987 | 7.7 | 0.63 | (6.5–9.0) | || | 4,295 | 13.1 | 0.71 | (11.7–14.5) |
| DE | 1,618 | 6.9 | 0.94 | (5.0–8.7) | || | 1,992 | 12.6 | 1.00 | (10.6–14.5) |
| DC | 1,421 | 8.0 | 1.05 | (5.9–10.0) | || | 1,743 | 14.8 | 1.22 | (12.4–17.2) |
| GA | 3,489 | 5.5 | 0.62 | (4.3–6.8) | || | 4,620 | 12.9 | 0.78 | (11.4–14.4) |
| HI | 3,578 | 5.6 | 0.51 | (4.6–6.6) | || | 4,175 | 10.7 | 0.68 | (9.3–12.0) |
| ID | 3,153 | 7.1 | 0.57 | (6.0–8.2) | || | 3,573 | 12.5 | 0.71 | (11.1–13.9) |
| IL | 1,529 | 6.4 | 0.93 | (4.6–8.2) | || | 1,667 | 10.8 | 1.03 | (8.8–12.9) |
| IN | 4,478 | 6.7 | 0.50 | (5.7–7.7) | || | 5,341 | 13.8 | 0.59 | (12.6–14.9) |
| IA | 4,740 | 6.8 | 0.48 | (5.8–7.7) | || | 4,802 | 11.4 | 0.64 | (10.2–12.7) |
| KS | 8,221 | 8.0 | 0.39 | (7.3–8.8) | || | 9,189 | 13.1 | 0.47 | (12.2–14.0) |
| KY | 2,543 | 8.3 | 0.71 | (6.9–9.7) | || | 2,835 | 14.9 | 0.94 | (13.1–16.8) |
| LA | 2,277 | 6.9 | 0.81 | (5.3–8.5) | || | 2,789 | 12.3 | 0.87 | (10.6–14.0) |
| ME | 5,058 | 8.6 | 0.61 | (7.5–9.8) | || | 6,645 | 16.1 | 0.72 | (14.7–17.5) |
| MD | 7,103 | 5.9 | 0.40 | (5.1–6.7) | || | 8,410 | 12.5 | 0.56 | (11.4–13.6) |
| MA | 3,515 | 7.7 | 0.55 | (6.6–8.8) | || | 4,081 | 15.4 | 0.85 | (13.8–17.1) |
| MI | 4,312 | 8.2 | 0.58 | (7.1–9.4) | || | 5,041 | 14.7 | 0.66 | (13.4–16.0) |
| MN | 7,669 | 6.2 | 0.34 | (5.5–6.9) | || | 8,184 | 11.3 | 0.45 | (10.4–12.2) |
| MS | 1,802 | 7.5 | 0.95 | (5.6–9.4) | || | 2,597 | 12.4 | 0.93 | (10.5–14.2) |
| MO | 5,613 | 7.1 | 0.55 | (6.0–8.1) | || | 6,537 | 11.7 | 0.62 | (10.4–12.9) |
| MT | 3,146 | 6.5 | 0.55 | (5.4–7.6) | || | 3,045 | 12.9 | 0.78 | (11.4–14.5) |
| NE | 6,790 | 5.7 | 0.41 | (5.0–6.5) | || | 8,059 | 10.7 | 0.52 | (9.7–11.7) |
| NV | 1,262 | 7.2 | 1.01 | (5.3–9.2) | || | 1,454 | 11.0 | 1.24 | (8.6–13.4) |
| NH | 2,872 | 8.8 | 0.77 | (7.3–10.3) | || | 3,624 | 15.3 | 0.90 | (13.5–17.0) |
| NJ | 3,857 | 5.6 | 0.46 | (4.7–6.5) | || | 4,030 | 12.0 | 0.75 | (10.6–13.5) |
| NM | 2,843 | 6.6 | 0.62 | (5.4–7.8) | || | 3,475 | 14.4 | 0.84 | (12.7–16.1) |
| NY | 17,806 | 7.3 | 0.35 | (6.6–8.0) | || | 20,922 | 12.2 | 0.42 | (11.4–13.0) |
| NC | 2,292 | 5.1 | 0.56 | (4.0–6.2) | || | 2,628 | 12.0 | 0.84 | (10.3–13.6) |
| ND | 2,997 | 7.5 | 0.67 | (6.2–8.9) | || | 2,862 | 9.3 | 0.74 | (7.8–10.7) |
| OH | 6,447 | 6.9 | 0.46 | (6.0–7.8) | || | 7,760 | 13.8 | 0.60 | (12.6–14.9) |
| OK | 2,372 | 8.2 | 0.73 | (6.7–9.6) | || | 3,010 | 13.5 | 0.79 | (11.9–15.0) |
| OR | 2,568 | 7.6 | 0.59 | (6.5–8.8) | || | 2,757 | 14.5 | 0.85 | (12.9–16.2) |
| PA | 3,051 | 8.0 | 0.63 | (6.7–9.2) | || | 3,332 | 12.5 | 0.78 | (11.0–14.0) |
| RI | 2,480 | 10.1 | 0.92 | (8.3–11.9) | || | 3,079 | 15.0 | 0.85 | (13.4–16.7) |
| SC | 4,459 | 6.9 | 0.64 | (5.6–8.1) | || | 5,532 | 11.2 | 0.64 | (10.0–12.5) |
| SD | 3,370 | 5.9 | 1.02 | (3.9–7.9) | || | 3,842 | 10.8 | 1.17 | (8.5–13.1) |
| TN | 2,164 | 7.0 | 0.76 | (5.6–8.5) | || | 2,566 | 13.4 | 0.90 | (11.6–15.2) |
| TX | 5,182 | 5.5 | 0.50 | (4.5–6.5) | || | 5,544 | 11.2 | 0.73 | (9.7–12.6) |
| UT | 5,280 | 7.8 | 0.48 | (6.8–8.7) | || | 5,223 | 11.7 | 0.58 | (10.6–12.8) |
| VT | 2,978 | 8.8 | 0.76 | (7.3–10.3) | || | 3,540 | 14.6 | 0.93 | (12.8–16.4) |
| VA | 4,357 | 6.4 | 0.49 | (5.4–7.3) | || | 5,431 | 13.0 | 0.64 | (11.7–14.2) |
| WA | 6,171 | 7.4 | 0.43 | (6.6–8.3) | || | 6,875 | 13.5 | 0.57 | (12.4–14.6) |
| WV | 2,985 | 8.7 | 0.64 | (7.4–9.9) | || | 3,719 | 15.3 | 0.75 | (13.9–16.8) |
| WI | 2,802 | 7.4 | 0.68 | (6.1–8.7) | || | 3,282 | 14.1 | 0.95 | (12.2–15.9) |
| WY | 1,895 | 7.1 | 0.78 | (5.6–8.6) | || | 2,487 | 12.4 | 1.08 | (10.3–14.5) |
| Territories | |||||||||
| GU | 823 | 4.5 | 1.07 | (2.4–6.6) | || | 826 | 4.9 | 1.13 | (2.7–7.1) |
| PR | 1,583 | 8.1 | 0.90 | (6.3–9.9) | || | 2,423 | 14.3 | 0.95 | (12.4–16.1) |
| VI | 637 | 5.0 | 1.45 | (2.2–7.9) | || | 731 | 4.9 | 1.43 | (2.1–7.7) |
Notes: For additional information on methods and variable description, refer to ‘Technical Information’, available at https://www.cdc.gov/asthma/brfss/2021/brfsstechinfo.html
aAged 18+ years
bCurrent asthma question: Do you still have asthma?
cUnweighted number of respondents who answered the current asthma question
dCI denotes confidence interval
eWeighted number of the respondents who answered the current asthma question
fU.S. Total includes 50 states plus the District of Columbia and excludes the territories
‘.–./blank’:Suppressed if the normal approximation to the binomial distribution does not apply due to small sample size or relative standard error (RSE)>30%
Asthma and Community Health Branch, National Center for Environmental Health
Centers for Disease Control and Prevention
View Page In: PDF - 174 KB