Geographic-specific Breastfeeding Rates among Children born in 2001
(Percent +/- half 95% Confidence Interval)

State & Breakdown n Ever Breastfeeding Breastfeeding
at 6 Months>
Breastfeeding
at 12 Months
ALABAMA 652 56.5±6.7 23.7±4.2 8.8±2.5
AL-Jefferson County 312 64.6±6.4 28.9±6.8 14.0±5.7
ALASKA 390 84.6±5.2 53.2±7.5 27.0±7.3
ARIZONA 840 82.6±3.5 44.8±4.1 21.3±3.5
  AZ-Maricopa County 440 84.5±3.7 45.8±5.6 21.8±4.8
ARKANSAS 324 59.5±6.6 18.8±4.7 7.9±3.1
CALIFORNIA 1585 82.2±3.1 46.7±3.7 25.1±3.1
  CA-Los Angeles County 434 78.1±6.1 42.6±6.7 22.1±5.5
  CA-San Diego County 392 84.9±4.3 52.3±5.4 26.0±5.4
  CA-Santa Clara County 336 83.5±6.4 44.4±6.6 21.3±4.8
COLORADO 382 80.7±4.9 42.4±5.6 21.6±4.6
CONNECTICUT 337 71.2±5.8 40.3±5.7 18.6±4.4
DELAWARE 395 65.8±5.6 27.5±5.0 12.7±3.4
DISTRICT OF COLUMBIA 424 65.7±6.5 34.8±7.3 18.3±6.5
FLORIDA 1207 74.4±4.1 35.2±5.1 15.4±2.9
  FL-Duval County 402 61.1±7.3 25.4±5.4 10.9±4.2
  FL-Miami-Dade County 423 78.2±5.3 33.8±5.5 16.3±3.7
GEORGIA 786 61.8±5.8 31.0±5.2 13.2±4.1
GA-Fulton/DeKalb Counties 396 72.6±5.8 34.5±5.7 12.5±3.5
HAWAII 405 81.5±4.5 48.3±5.5 28.0±4.9
IDAHO 342 85.4±4.3 51.9±7.1 23.7±4.9
ILLINOIS 819 71.1±4.2 34.0±6.0 17.3±4.8
  IL-City of Chicago 447 64.1±6.0 35.0±5.6 18.5±5.2
INDIANA 711 58.9±6.1 27.3±5.0 12.3±3.5
  IN-Marion County 355 58.7±7.0 26.8±6.0 9.5±2.9
IOWA 309 68.0±6.0 29.6±5.4 12.5±3.8
KANSAS 325 75.0±5.5 37.4±5.5 15.8±4.2
KENTUCKY 327 58.4±6.7 27.4±5.3 12.0±3.6
LOUISIANA 795 44.8±4.8 16.7±3.2 7.2±2.1
  LA-Orleans Parish 377 50.4±8.0 23.9±5.6 14.7±4.7
MAINE 334 73.9±5.4 40.8±5.7 21.0±4.6
MARYLAND 754 73.9±5.9 42.3±7.4 21.7±7.5
  MD-Baltimore City 375 50.3±7.3 24.6±4.7 13.7±4.0
MASSACHUSETTS 738 74.1±4.9 38.9±6.7 16.4±4.8
  MA-City of Boston 392 78.9±4.9 44.1±6.2 21.7±5.1
MICHIGAN 836 68.6±5.3 30.0±6.7 13.2±4.9
  MI-City of Detroit 396 41.9±6.1 15.2±3.9 6.5±2.6
MINNESOTA 329 82.6±4.7 45.4±7.6 24.4±6.9
MISSISSIPPI 335 47.8±7.4 15.9±4.0 5.5±2.2
MISSOURI 398 63.0±6.8 31.8±6.0 13.8±3.8
MONTANA 325 80.8±5.1 44.1±6.0 24.1±5.2
NEBRASKA 345 71.1±7.3 32.9±5.1 16.1±4.0
NEVADA 410 75.7±4.7 37.4±5.1 21.4±4.3
NEW HAMPSHIRE 348 75.8±5.2 44.7±5.7 23.0±4.6
NEW JERSEY 822 73.7±4.7 38.2±6.1 17.7±3.9
  NJ-City of Newark 416 60.7±5.2 32.0±4.7 18.2±5.5
NEW MEXICO 375 73.7±5.4 41.2±5.3 20.9±5.3
NEW YORK 788 70.3±4.8 36.3±5.3 21.3±4.2
  NY-NYC 5 Counties 397 71.4±5.1 34.6±5.2 18.4±4.1
NORTH CAROLINA 369 65.8±10.1 34.3±8.7 16.0±8.0
NORTH DAKOTA 349 67.4±7.8 33.3±7.6 15.6±3.8
OHIO 1081 64.7±4.7 30.2±4.3 14.8±3.4
  OH-Cuyahoga County 393 54.0±6.9 24.2±5.2 11.3±3.0
  OH-Franklin County 344 68.5±7.2 31.0±5.2 17.9±4.2
OKLAHOMA 393 66.0±6.9 33.4±7.3 13.8±5.1
OREGON 339 87.2±3.9 57.5±5.7 29.2±6.7
PENNSYLVANIA 804 64.5±4.9 30.6±4.6 16.4±3.6
  PA-Philadelphia 431 51.4±7.0 22.6±4.2 10.8±3.1
RHODE ISLAND 324 68.6±6.8 39.0±8.3 19.9±10.1
SOUTH CAROLINA 307 56.6±7.0 27.2±5.7 14.4±4.5
SOUTH DAKOTA 345 73.9±6.4 37.6±6.7 18.3±4.3
TENNESSEE 1102 55.9±4.4 26.5±3.7 13.3±3.0
  TN-Davidson County 323 73.1±5.9 42.4±9.5 20.3±11.1
  TN-Shelby County 427 53.8±6.2 22.9±4.9 10.6±3.1
TEXAS 2046 76.9±3.4 38.8±7.1 17.9±3.6
  TX-Bexar County 376 60.0±6.5 28.9±5.6 15.0±3.9
  TX-City of Houston 413 72.6±5.1 41.0±6.0 19.7±4.8
  TX-Dallas County 433 76.7±4.6 37.1±5.3 15.7±3.4
  TX-El Paso County 350 74.5±6.1 26.8±5.7 14.4±4.7
UTAH 334 86.7±4.1 55.7±5.7 25.8±4.9
VERMONT 318 74.4±5.6 47.5±8.4 30.7±7.2
VIRGINIA 426 71.1±5.2 36.3±6.1 20.3±5.4
WASHINGTON 735 85.1±4.6 52.6±5.8 29.5±6.0
  WA-King County 373 88.1±4.0 57.8±5.8 31.3±5.3
WEST VIRGINIA 345 51.6±6.5 19.0±4.4 10.7±3.3
WISCONSIN 691 72.0±4.8 36.2±5.2 15.4±3.9
  WI-Milwaukee County 354 59.5±7.1 24.0±4.6 11.5±3.0
WYOMING 329 68.2±11.4 42.7±9.7 24.3±7.7
Exclusive breastfeeding information from earlier surveys is not shown due to changes in exclusive breastfeeding question.

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 (California's Alameda, Fresno, and San Bernadino Counties; Northern California; Denver, Colorado; Eastern Kansas; Missouri's St. Louis County; Nevada's Clark County; Southern New Mexico; Pennsylvania's Allegheny County; and Eastern Washington) are not reported on in this table.