Provisional Geographic-specific Breastfeeding Rates among Children born in 2006 (Percent +/- half 95% Confidence Interval)
State & Breakdown Number Ever
Breastfeeding		 Breastfeeding
at 6 months		 Breastfeeding
at 12 months
US National 16985 73.9±1.1 43.4±1.3 22.7±1.1
ALABAMA 319 58.8±6.8 26.6±5.2 11.4±3.5
ALASKA 207 88.5±5.2 48.9±8.2 26.2±6.8
ARIZONA 247 76.5±6.8 45.3±7.4 22.3±6.2
ARKANSAS 314 61.5±7.1 26.9±5.9 10.6±3.4
CALIFORNIA 984 84.7±3.9 53.0±5.3 31.1±4.8
      CA-Los Angeles County 305 82.9±4.8 52.3±6.1 26.1±5.2
      CA-Santa Clara County 197 91.0±4.7 61.7±8.1 37.8±7.9
      CA-Northern CA  191 86.7±7.2 58.6±8.5 33.4±7.5
COLORADO 264 82.5±7.2 59.5±8.5 30.5±7.8
CONNECTICUT 220 74.9±7.0 41.9±7.4 23.3±6.3
DELAWARE 262 66.7±7.8 32.8±6.6 15.4±4.4
DISTRICT OF COLUMBIA 276 69.6±6.7 45.6±6.9 20.2±4.9
FLORIDA 724 75.7±5.9 37.2±6.7 18.2±5.2
      FL-Miami-Dade County 276 78.6±6.1 39.4±7.0 14.2±4.5
      FL-Orange County 232 80.1±8.0 41.8±8.5 20.9±7.3
GEORGIA 261 62.5±8.0 36.4±7.1 18.1±5.4
HAWAII 249 88.2±5.4 56.3±7.5 35.0±6.8
IDAHO 212 79.8±6.7 55.1±7.7 25.3±6.1
ILLINOIS 909 69.5±5.0 38.7±5.0 15.9±3.5
      IL-City of Chicago 328 69.9±6.6 35.0±6.1 17.3±4.9
      IL-Madison/St. Clair Counties 274 59.1±6.9 34.0±6.2 14.0±4.5
INDIANA 340 71.1±6.4 37.2±6.8 18.9±5.3
IOWA 252 68.1±6.7 33.2±6.2 15.8±4.5
KANSAS 264 78.1±6.3 43.8±7.4 23.6±6.4
KENTUCKY 246 53.6±7.4 28.9±6.2 15.8±5.0
LOUISIANA 342 49.1±6.6 20.7±4.5 9.9±3.2
MAINE 255 75.0±6.5 45.7±6.8 26.0±5.5
MARYLAND 589 76.4±5.6 43.3±6.2 25.4±5.3
      MD-Baltimore City 290 59.4±6.8 37.1±6.3 21.4±5.3
MASSACHUSETTS 249 78.2±7.2 44.7±7.5 24.5±6.4
MICHIGAN 261 64.8±7.6 31.2±6.3 14.4±4.5
MINNESOTA 340 79.9±5.6 51.6±6.4 24.7±5.2
      MN-Twin Cities 221 82.3±5.8 54.5±7.4 28.5±7.0
MISSISSIPPI 348 48.3±6.6 20.1±5.4 8.7±3.5
MISSOURI 273 65.3±7.0 33.1±6.5 14.9±4.7
MONTANA 225 82.7±6.1 56.8±7.6 30.6±6.7
NEBRASKA 253 76.8±6.4 46.2±7.0 22.6±5.6
NEVADA 233 79.3±6.1 45.3±7.1 22.5±6.0
NEW HAMPSHIRE 212 78.4±6.4 55.1±7.4 30.5±6.5
NEW JERSEY 298 81.4±5.5 53.0±7.2 27.4±6.1
NEW MEXICO 250 72.6±7.6 42.2±7.5 25.7±6.3
NEW YORK 513 76.4±4.1 49.4±5.0 28.9±4.5
      NY-NYC 5 Counties 277 82.4±5.0 53.6±6.6 32.9±6.2
NORTH CAROLINA 276 66.9±7.1 36.7±6.9 18.9±5.5
NORTH DAKOTA 230 71.1±6.4 37.6±6.7 20.6±5.7
OHIO 243 58.5±7.3 29.7±6.2 12.0±3.9
OKLAHOMA 229 65.6±7.5 27.4±6.3 12.4±4.3
OREGON 181 91.4±4.6 63.0±8.3 37.0±8.5
PENNSYLVANIA 586 67.6±5.7 35.8±5.5 19.4±4.5
      PA-Philadelphia 334 58.6±6.0 31.2±5.4 15.3±4.1
RHODE ISLAND 186 75.4±7.6 40.4±8.5 19.8±7.0
SOUTH CAROLINA 312 61.3±7.1 30.4±6.0 13.9±4.4
SOUTH DAKOTA 250 76.8±6.5 47.5±7.3 22.1±6.4
TENNESSEE 281 58.8±7.7 37.9±6.9 14.8±4.6
TEXAS 1262 78.2±4.4 48.7±5.3 25.3±4.4
      TX-Bexar County 250 74.5±7.5 43.0±7.7 20.9±6.0
      TX-City of Houston 277 77.0±6.3 50.2±7.2 25.5±6.2
      TX-Dallas County 267 76.1±6.1 41.3±7.0 27.4±6.8
      TX-El Paso County 231 82.8±5.3 39.0±6.9 18.0±5.5
UTAH 217 92.8±4.7 69.5±7.8 33.9±7.7
VERMONT 192 80.1±6.7 59.5±7.7 38.4±7.3
VIRGINIA 238 79.7±6.5 48.3±8.1 25.8±6.8
WASHINGTON 400 86.4±4.6 58.0±6.6 35.0±6.1
      WA-Eastern/Western WA 222 86.8±5.0 55.1±7.3 29.7±6.3
WEST VIRGINIA 269 58.8±7.3 27.2±5.6 12.6±3.9
WISCONSIN 215 75.5±6.9 48.6±7.6 25.9±6.6
WYOMING 227 84.2±5.7 50.8±7.1 26.7±6.1
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 Alameda, Fresno, San Bernardino, and San Diego Counties; Denver, Colorado; Florida's Duval County; Georgia's Fulton/Dekalb Counties; Indiana's Marion County; Eastern Kansas; Louisiana's Orleans Parish; 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 Wisconsin's Milwaukee County) are not reported on in this table.