Provisional Geographic-specific Breastfeeding Rates among Children born in 2007 (Percent +/- half 95% Confidence Interval)
State & Breakdown n Ever
Breastfeeding		 Breastfeeding
at 6 months		 Breastfeeding
at 12 months
US National 16629 75.0±1.2 43.0±1.3 22.4±1.1
ALABAMA 251 64.6±7.5 30.0±6.7 15.9±5.1
ALASKA 199 83.3±6.2 57.1±7.7 32.7±7.0
ARIZONA 307 78.8±5.8 49.6±6.9 25.3±6.2
ARKANSAS 299 61.3±7.9 27.5±6.2 12.6±4.1
CALIFORNIA 498 86.6±4.3 53.8±5.8 31.4±5.7
  CA-Los Angeles County 251 81.9±6.0 50.5±7.2 30.1±6.6
COLORADO 337 88.7±5.4 57.7±8.4 29.3±7.6
CONNECTICUT 234 71.0±8.3 49.3±8.3 21.7±6.3
DELAWARE 268 71.5±6.6 43.2±6.7 20.3±5.1
DISTRICT OF COLUMBIA 362 65.4±7.1 44.1±6.7 23.7±5.5
FLORIDA 396 73.4±5.8 38.0±5.9 17.3±4.4
GEORGIA 295 64.8±7.3 33.5±6.4 17.9±5.5
HAWAII 226 87.5±5.4 60.4±7.3 33.1±6.7
IDAHO 187 88.9±5.6 53.2±8.2 30.8±7.5
ILLINOIS 646 70.2±5.4 36.0±5.1 16.4±3.8
  IL-City of Chicago 338 66.7±7.1 34.4±6.1 15.8±4.4
INDIANA 680 70.5±6.4 37.8±6.2 16.9±4.9
  IN-Lake County 222 73.7±7.0 35.9±7.5 17.2±6.1
  IN-Marion County 228 67.5±7.5 36.2±6.9 17.8±5.2
IOWA 258 74.4±6.7 42.3±6.7 19.2±5.2
KANSAS 209 79.6±7.1 47.4±8.4 20.2±6.2
KENTUCKY 310 58.7±6.5 29.6±5.6 13.1±4.0
LOUISIANA 295 56.6±7.1 20.2±5.3 9.8±4.0
MAINE 241 75.2±6.3 48.2±7.0 27.6±6.0
MARYLAND 444 73.4±7.8 45.5±8.0 17.9±5.6
  MD-Baltimore City 253 62.6±7.3 36.4±6.7 19.9±5.0
MASSACHUSETTS 252 77.6±7.3 50.1±7.6 23.3±5.9
MICHIGAN 298 70.1±6.7 38.6±7.0 22.9±6.3
MINNESOTA 223 81.9±5.9 51.7±7.5 26.6±6.1
MISSISSIPPI 366 52.5±6.3 22.5±4.9 8.0±2.8
MISSOURI 298 72.6±6.3 38.2±6.4 19.4±5.0
MONTANA 234 88.5±5.3 55.4±7.7 34.8±7.2
NEBRASKA 222 75.5±7.2 47.0±7.7 23.9±6.6
NEVADA 286 82.3±5.3 43.2±6.9 20.8±5.7
NEW HAMPSHIRE 222 78.6±6.4 50.0±7.1 25.9±6.0
NEW JERSEY 349 72.1±6.1 42.3±6.2 19.8±5.1
NEW MEXICO 294 82.5±5.6 49.0±7.0 24.8±5.8
NEW YORK 497 81.4±3.8 47.4±5.0 24.9±4.3
  NY-NYC 5 Counties 266 83.1±5.1 53.3±6.9 31.0±6.4
NORTH CAROLINA 236 73.5±7.3 35.9±7.6 19.4±5.8
NORTH DAKOTA 175 73.2±7.1 41.2±7.6 20.7±6.3
OHIO 271 64.8±7.4 37.5±6.8 20.3±5.2
OKLAHOMA 291 65.0±6.9 27.4±5.9 12.2±3.9
OREGON 285 86.5±4.8 62.2±6.8 39.6±6.6
PENNSYLVANIA 550 63.8±5.9 36.2±5.7 18.5±4.5
  PA-Philadelphia 298 60.6±6.1 28.9±5.4 15.2±4.1
RHODE ISLAND 274 70.8±7.4 45.1±7.7 22.7±6.3
SOUTH CAROLINA 251 63.8±6.7 29.6±6.3 12.0±4.4
SOUTH DAKOTA 234 76.9±6.5 48.5±7.3 22.7±5.7
TENNESSEE 341 65.4±6.6 29.8±5.8 17.2±4.7
TEXAS 1259 75.8±4.6 43.6±5.1 21.8±4.2
  TX-Bexar County 269 69.2±7.2 38.4±7.0 20.3±5.8
  TX-City of Houston 242 78.0±6.5 48.9±7.3 25.3±6.3
  TX-Dallas County 217 79.9±6.5 44.4±8.1 20.1±6.0
  TX-El Paso County 278 80.3±5.7 40.1±6.6 18.4±5.3
UTAH 258 89.8±4.4 58.3±7.5 35.4±7.1
VERMONT 285 86.2±4.6 58.4±6.6 39.7±6.3
VIRGINIA 275 77.3±6.9 42.8±8.0 23.9±6.9
WASHINGTON 425 87.9±3.9 59.9±6.1 33.4±5.7
  WA-Eastern/Western WA 247 85.5±5.0 59.3±7.0 34.1±6.5
WEST VIRGINIA 221 53.0±8.4 25.9±6.3 12.5±4.4
WISCONSIN 283 76.3±7.0 48.1±7.2 23.5±5.6
WYOMING 232 78.2±6.4 52.5±7.2 29.0±6.4
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 (AL-Jefferson County; AZ-Maricopa County; CA-Alameda County; CA-Fresno County; CA-Northern CA ; CA-San Bernardino County; CA-San Diego County; CA-Santa Clara County; CO-Denver; FL-Duval County; FL-Miami-Dade County; FL-Orange County; GA-Fulton/DeKalb Counties; IL-Madison/St. Clair Counties; KS-Eastern KS; LA-Orleans Parish; MA-City of Boston; MI-City of Detroit; MN-Twin Cities; MO-St. Louis County/City; NJ-City of Newark; NM-Southern NM; NV-Clark County; OH-Cuyahoga County; OH-Franklin County; PA-Allegheny County; TN-Davidson County; TN-Shelby County; WA-King County; and WI-Milwaukee County) are not reported on in this table.