Geographic-specific Breastfeeding Rates among Children born in 2000
(Percent +/- half 95% Confidence Interval)

State & Breakdown n Ever Breastfeeding Breastfeeding
at 6 Months
Breastfeeding
at 12 Months
ALABAMA 311 63.4±10.5 28.0±10.7 7.1±5.6
  AL-Jefferson County 135 69.7±13.1 27.7±12.4 7.6±5.7
ALASKA 146 70.7±14.2 40.9±13.8 23.0±10.1
ARIZONA 348 79.4±8.0 40.1±10.0 18.8±8.9
  AZ-Maricopa County 192 82.1±8.9 43.6±12.9 23.9±12.4
ARKANSAS 154 62.5±12.5 30.3±14.3 11.3±6.6
CALIFORNIA 676 85.2±5.8 40.1±8.2 19.3±6.0
  CA-Los Angeles County 167 81.3±13.8 39.2±11.9 11.5±5.0
  CA-San Diego County 158 89.3±6.8 51.1±14.0 33.9±14.9
  CA-Santa Clara County 176 84.9±9.2 31.6±11.7 25.4±11.5
COLORADO 149 75.8±11.5 40.7±13.5 22.8±11.1
CONNECTICUT 143 86.4±7.1 45.7±13.4 27.4±12.4
DELAWARE 164 62.1±15.1 29.3±13.6 14.4±11.5
DISTRICT OF COLUMBIA 157 47.9±17.0 22.8±11.0 9.5±5.8
FLORIDA 525 74.1±8.1 34.9±11.1 15.6±10.4
  FL-Duval County 172 63.7±15.0 30.7±12.3 14.0±8.2
  FL-Miami-Dade County 186 79.1±9.2 38.3±12.8 15.9±11.1
GEORGIA 341 65.8±12.5 31.3±11.7 18.8±10.9
GA-Fulton/DeKalb Counties 190 64.7±13.2 37.2±11.6 17.2±10.0
HAWAII 192 67.3±11.2 34.1±10.5 23.0±8.8
IDAHO 133 94.3±2.6 61.4±13.8 22.1±14.7
ILLINOIS 339 69.8±8.8 29.4±8.8 13.4±6.1
  IL-City of Chicago 177 56.0±14.4 23.9±11.2 9.2±6.2
INDIANA 330 56.3±13.2 27.3±9.1 13.5±6.9
  IN-Marion County 179 61.3±13.8 36.2±12.7 15.7±8.7
IOWA 155 59.2±13.2 19.5±8.7 9.3±6.4
KANSAS 140 80.4±10.9 34.7±13.9 13.4±8.4
KENTUCKY 140 48.0±14.3 17.7±9.5 8.2±6.0
LOUISIANA 371 51.3±10.9 21.8±9.0 3.7±1.5
  LA-Orleans Parish 186 51.6±13.2 32.3±13.2 10.8±7.1
MAINE 151 65.6±14.1 43.6±14.2 27.4±13.2
MARYLAND 337 65.7±13.3 26.8±10.3 11.8±7.1
  MD-Baltimore City 165 54.9±16.1 19.3±10.3 8.6±7.1
MASSACHUSETTS 277 69.3±12.0 40.8±12.3 15.1±7.7
  MA-City of Boston 134 71.0±14.4 48.1±15.5 20.1±12.4
MICHIGAN 330 67.2±11.3 25.4±9.5 9.9±6.0
  MI-City of Detroit 160 54.8±14.2 16.8±8.4 10.3±7.5
MINNESOTA 145 87.6±9.7 53.2±15.2 18.3±9.3
MISSISSIPPI 128 45.0±16.9 20.0±11.4 3.5±2.5
MISSOURI 150 56.2±14.5 21.7±10.8 10.4±6.1
MONTANA 153 81.7±11.7 42.7±14.1 21.6±10.5
NEBRASKA 149 63.0±14.6 40.4±16.0 11.9±8.1
NEVADA 153 69.7±12.9 37.6±11.6 18.8±8.9
NEW HAMPSHIRE 150 80.6±9.1 33.8±11.3 18.7±8.7
NEW JERSEY 344 78.7±8.7 40.5±12.7 27.4±12.0
  NJ-City of Newark 171 66.1±10.8 28.6±12.0 8.5±8.0
NEW MEXICO 150 67.2±14.8 32.7±12.8 15.9±8.8
NEW YORK 353 62.0±9.7 31.0±8.6 11.3±5.3
  NY-NYC 5 Counties 173 70.0±11.9 33.8±12.3 16.1±9.6
NORTH CAROLINA 158 66.5±12.2 29.3±10.2 9.0±5.8
NORTH DAKOTA 118 74.4±12.7 23.3±10.1 7.9±4.1
OHIO 475 70.7±10.0 40.0±10.6 16.0±7.6
  OH-Cuyahoga County 156 52.8±19.4 23.2±11.7 9.0±7.7
  OH-Franklin County 159 74.3±9.6 49.3±13.8 16.2±8.9
OKLAHOMA 157 65.2±13.4 28.4±13.4 16.0±13.0
OREGON 161 90.6±6.8 54.3±14.1 28.1±12.7
PENNSYLVANIA 326 67.8±10.5 36.4±11.8 17.6±9.3
  PA-Philadelphia 174 59.6±13.6 24.1±11.8 4.7±4.5
RHODE ISLAND 132 72.6±12.2 35.7±13.8 18.6±11.1
SOUTH CAROLINA 150 39.9±14.9 18.3±9.0 7.0±5.6
SOUTH DAKOTA 124 74.1±14.3 36.1±14.3 22.1±14.2
TENNESSEE 492 53.5±11.2 27.2±8.1 15.0±7.0
  TN-Davidson County 154 70.2±11.1 39.0±13.1 13.7±7.5
  TN-Shelby County 168 56.0±12.1 30.7±12.2 14.3±11.5
TEXAS 848 71.0±8.6 28.1±7.1 12.5±4.8
  TX-Bexar County 179 61.6±16.0 24.3±9.8 13.1±7.7
  TX-City of Houston 176 58.0±14.0 24.5±9.8 10.9±6.6
  TX-Dallas County 161 76.1±12.4 32.7±12.9 13.5±8.2
  TX-El Paso County 132 75.9±10.2 24.3±12.5 7.7±6.3
UTAH 139 86.9±8.0 53.8±14.3 22.2±10.6
VERMONT 154 72.5±15.2 47.5±15.1 24.8±11.7
VIRGINIA 169 76.6±11.0 43.0±13.1 17.8±9.9
WASHINGTON 331 88.4±7.4 49.6±9.9 26.0±8.8
  WA-King County 159 93.2±6.2 57.3±14.6 28.7±13.1
WEST VIRGINIA 153 39.0±13.7 16.9±9.1 14.4±8.9
WISCONSIN 269 71.0±11.3 37.4±10.7 17.7±7.8
  WI-Milwaukee County 141 57.7±16.4 32.8±14.1 14.2±8.6
WYOMING 148 78.1±11.2 47.4±13.5 18.0±10.2
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.