Provisional Geographic-specific Exclusive Breastfeeding Rates among Children born in 2005
(Percent +/- half 95% Confidence Interval)
State & Breakdown Number Exclusive Breastfeeding1
through 3 months		 Exclusive Breastfeeding1
through 6 months
US National 15014 31.5±1.3 11.9±0.9
ALABAMA 220 17.3±5.3 6.6±3.4
ALASKA 180 42.3±8.1 20.7±6.7
ARIZONA 259 33.0±6.8 10.2±4.1
ARKANSAS 264 22.5±5.7 7.4±3.8
CALIFORNIA 1056 41.1±5.5 17.6±4.3
 CA-Alameda County 256 46.4±7.0 16.2±4.7
 CA-Los Angeles County 256 32.5±6.4 11.9±4.5
 CA-San Bernardino County 217 39.4±7.1 14.2±5.2
COLORADO 197 42.9±8.9 13.1±6.0
CONNECTICUT 202 36.4±7.1 12.3±4.5
DELAWARE 246 23.4±5.8 8.3±3.5
DISTRICT OF COLUMBIA 261 27.8±5.7 9.3±3.7
FLORIDA 495 28.0±6.9 11.4±4.8
 FL-Miami-Dade County 256 22.6±6.1 7.8±3.8
GEORGIA 281 23.9±6.4 11.7±5.1
HAWAII 211 34.5±7.4 15.6±5.3
IDAHO 158 52.4±7.9 21.9±6.8
ILLINOIS 534 33.2±5.4 10.2±3.0
 IL-City of Chicago 261 26.1±6.1 8.8±3.5
INDIANA 529 24.9±5.0 6.6±2.4
 IN-Marion County 262 24.6±5.6 8.8±3.5
IOWA 188 37.7±7.8 11.5±4.7
KANSAS 210 32.6±7.7 13.6±5.7
KENTUCKY 253 21.5±5.6 5.9±2.9
LOUISIANA 300 20.1±5.5 7.2±3.8
MAINE 192 39.0±7.7 12.3±5.1
MARYLAND 326 28.9±6.0 11.6±4.4
MASSACHUSETTS 201 35.5±8.2 14.0±6.0
MICHIGAN 237 31.5±7.4 12.1±4.9
MINNESOTA 205 41.7±7.9 17.1±6.3
MISSISSIPPI 216 18.5±6.2 5.6±3.9
MISSOURI 222 29.2±7.3 7.8±3.5
MONTANA 217 38.3±7.3 15.1±5.1
NEBRASKA 169 32.1±8.4 12.5±6.3
NEVADA 233 30.2±6.5 11.0±4.5
NEW HAMPSHIRE 176 35.5±8.2 9.8±4.8
NEW JERSEY 267 24.5±6.2 10.8±4.4
NEW MEXICO 212 37.2±8.4 15.0±6.6
NEW YORK 491 25.5±4.6 8.4±2.7
 NY-NYC 5 Counties 295 23.0±5.5 10.3±4.0
NORTH CAROLINA 227 26.3±7.1 9.5±4.2
NORTH DAKOTA 199 36.0±7.2 11.9±4.6
OHIO 282 22.9±5.2 9.0±3.5
OKLAHOMA 224 24.0±6.5 8.1±3.7
OREGON 189 51.8±8.4 23.8±7.1
PENNSYLVANIA 494 27.4±4.8 7.5±2.7
 PA-Philadelphia 185 21.7±6.3 6.9±3.5
RHODE ISLAND 192 35.6±7.9 15.3±5.5
SOUTH CAROLINA 317 27.1±5.4 11.8±4.0
SOUTH DAKOTA 221 34.0±7.8 12.5±5.3
TENNESSEE 238 19.0±5.4 6.0±2.8
TEXAS 1253 30.5±4.5 10.0±2.9
 TX-Bexar County 279 25.9±7.1 12.3±5.5
 TX-City of Houston 291 24.5±5.2 7.6±3.1
 TX-Dallas County 216 32.6±7.1 10.8±4.4
 TX-El Paso County 201 24.1±6.4 7.1±3.4
UTAH 254 42.6±7.2 17.4±5.6
VERMONT 185 49.0±8.5 23.9±6.7
VIRGINIA 286 33.8±6.6 14.3±5.3
WASHINGTON 412 44.9±6.4 21.3±5.3
 WA-Western WA 202 51.9±7.8 19.7±6.1
WEST VIRGINIA 217 14.7±5.0 4.4±2.6
WISCONSIN 206 35.9±7.7 9.0±4.5
WYOMING 210 40.5±7.8 12.3±4.4
1Exclusive breastfeeding is defined as ONLY breast milk — NO solids, no water, and no other liquids.

Source: National Immunization Survey, Centers for Disease Control and Prevention, Department of Health and Human Services

Sample sizes appearing in the NIS breastfeeding tables are slightly smaller than the numbers published in other NIS publications due to the fact that in the DNPAO breastfeeding analyses, the sample was limited to records with valid responses to the breastfeeding questions.

Counties and cities not sampled or with sample size <100 (Alabama's Jefferson County; Arizona's Maricopa County; California's San Fresno, San Diego and Santa Clara Counties and Northern California; Denver, Colorado; Florida's Duval County; Georgia's Fulton/Dekalb Counties; Eastern Kansas; Louisiana's Orleans Parish; Baltimore City, Maryland; Boston, Massachusetts; Detroit, Michigan; Missouri's St. Louis County and City; Nevada's Clark County; Newark, New Jersey; Southern New Mexico; Ohio's Cuyahoga and Franklin Counties; Pennsylvania's Allegheny County; Tennessee's Davidson's and Shelby Counties; Washington's King County and Eastern Washington and Wisconsin's Milwaukee County) are not reported on in this table.