Table 2. Geographic-specific Breastfeeding Rates among Children born in 2002
(Percent +/- half 95% Confidence Interval)

State & Breakdown Number Ever Breastfeeding Breastfeeding
at 6 Months
Breastfeeding
at 12 Months
ALABAMA 647 61.7±5.6 21.3±4.3 9.4±3.0
AL-Jefferson County 319 58.0±7.0 23.8±5.4 11.5±4.0
ALASKA 346 86.9±4.2 49.4±6.2 27.4±5.3
ARIZONA 677 79.7±3.7 42.5±4.5 22.5±3.9
AZ-Maricopa County 377 80.9±4.7 42.3±5.8 22.9±5.1
ARKANSAS 310 55.2±7.4 21.9±5.1 10.7±3.7
CALIFORNIA 1477 85.6±2.8 47.4±3.9 26.7±3.4
CA-Los Angeles County 386 86.6±3.7 47.4±6.0 26.9±5.1
CA-San Diego County 296 84.2±5.9 48.6±6.9 28.1±6.1
CA-Santa Clara County 244 89.3±4.9 54.0±7.2 26.7±6.0
COLORADO 392 82.1±4.8 46.4±5.9 27.2±5.1
CONNECTICUT 316 75.0±6.0 33.8±5.8 14.5±4.0
DELAWARE 350 64.7±6.5 29.6±5.4 15.2±4.0
DISTRICT OF COLUMBIA 470 67.8±5.6 38.2±5.2 19.9±4.0
FLORIDA 1019 71.9±4.9 35.5±4.7 16.7±3.7
FL-Duval County 354 61.7±7.2 33.8±6.1 17.2±4.8
FL-Miami-Dade County 271 74.3±6.6 34.4±6.8 18.5±5.8
GEORGIA 705 61.5±5.9 28.3±4.8 11.5±3.4
GA-Fulton/DeKalb Counties 336 73.5±6.9 39.3±6.7 18.1±5.1
HAWAII 388 80.5±5.1 49.3±6.0 36.0±5.7
IDAHO 325 85.8±4.3 50.3±6.2 24.2±5.1
ILLINOIS 808 65.0±5.1 34.8±4.7 15.2±3.5
IL-City of Chicago 441 66.7±5.8 36.7±5.4 16.1±3.9
INDIANA 581 66.1±6.2 30.2±5.2 11.9±3.4
IN-Marion County 240 67.2±7.8 30.5±7.2 16.1±5.5
IOWA 336 68.0±6.6 28.4±5.6 15.2±4.4
KANSAS 359 72.3±5.8 38.2±6.1 20.3±4.9
KENTUCKY 324 44.4±6.9 21.3±5.1 11.6±3.8
LOUISIANA 765 48.4±5.6 19.0±4.1 6.0±1.8
LA-Orleans Parish 300 48.5±7.2 25.6±5.8 10.8±4.1
MAINE 299 67.8±6.1 35.9±5.9 17.3±4.5
MARYLAND 688 72.7±5.0 40.3±5.4 18.4±4.0
MD-Baltimore City 341 52.5±7.0 24.2±5.4 8.5±2.9
MASSACHUSETTS 649 76.3±5.1 45.4±5.7 25.2±4.8
MA-City of Boston 274 80.2±5.8 44.7±7.3 23.6±6.0
MICHIGAN 752 65.0±5.6 32.4±4.9 14.2±3.7
MI-City of Detroit 360 48.4±6.4 16.8±4.2 6.9±2.9
MINNESOTA 328 77.9±5.5 44.9±6.4 22.4±5.3
MISSISSIPPI 401 51.0±6.2 19.8±4.9 8.3±3.1
MISSOURI 404 66.9±6.6 32.3±5.7 16.0±4.4
MONTANA 328 78.2±5.9 45.7±6.3 25.7±5.3
NEBRASKA 349 64.9±6.2 39.1±6.2 20.1±5.5
NEVADA 443 81.8±4.2 46.0±5.4 17.7±3.9
NEW HAMPSHIRE 331 75.6±5.6 43.7±6.2 25.2±5.2
NEW JERSEY 802 73.5±5.8 39.0±5.8 16.9±4.3
NJ-City of Newark 383 60.5±5.9 27.7±5.2 12.8±3.9
NEW MEXICO 381 75.9±5.8 44.5±6.1 22.0±5.1
NEW YORK 803 74.0±3.9 41.6±4.1 21.6±3.3
NY-NYC 5 Counties 424 78.1±4.7 46.0±5.4 25.5±4.6
NORTH CAROLINA 365 63.2±6.4 33.7±5.6 19.6±4.7
NORTH DAKOTA 351 68.3±5.7 38.5±5.8 20.4±4.9
OHIO 1021 61.3±5.0 30.4±4.4 14.6±3.2
OH-Cuyahoga County 363 62.2±6.5 35.0±5.9 19.4±4.9
OH-Franklin County 287 69.9±6.6 35.6±6.5 19.1±5.3
OKLAHOMA 403 70.2±5.6 28.3±5.2 12.9±3.7
OREGON 360 86.3±4.3 47.9±6.2 27.4±5.1
PENNSYLVANIA 726 62.5±5.4 34.5±4.8 18.1±3.8
PA-Philadelphia 366 52.1±6.0 27.1±5.2 12.8±4.0
RHODE ISLAND 387 66.2±5.3 33.4±5.1 13.6±3.5
SOUTH CAROLINA 374 56.7±6.5 26.3±5.1 11.2±3.3
SOUTH DAKOTA 348 70.4±6.4 35.2±6.2 16.2±4.9
TENNESSEE 950 60.9±5.0 30.4±4.5 13.6±3.6
TN-Davidson County 294 77.9±5.7 40.7±6.5 19.3±5.1
TN-Shelby County 352 56.1±6.5 26.6±5.3 9.7±3.4
TEXAS 1749 75.3±3.5 38.8±4.2 20.3±3.6
TX-Bexar County 376 64.7±6.0 29.2±5.3 10.6±3.3
TX-City of Houston 397 77.1±5.4 36.3±5.5 16.0±4.1
TX-Dallas County 276 77.2±6.3 39.3±6.9 19.7±5.4
TX-El Paso County 266 72.2±6.0 25.7±5.7 10.8±3.9
UTAH 365 82.6±4.8 52.6±6.2 23.3±4.9
VERMONT 300 77.1±5.8 47.2±6.6 28.5±5.6
VIRGINIA 421 68.3±6.0 36.8±5.6 20.8±4.8
WASHINGTON 636 88.7±3.1 52.8±4.8 31.5±4.5
WA-King County 326 88.2±5.4 63.3±7.1 39.2±6.5
WEST VIRGINIA 366 44.7±6.2 17.9±4.1 8.0±2.8
WISCONSIN 628 65.6±5.3 37.5±5.1 16.0±3.6
WI-Milwaukee County 321 66.7±6.8 35.1±6.3 15.9±4.5
WYOMING 345 77.5±5.3 44.4±6.1 23.5±5.2
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.