Final Geographic-specific Formula Supplementation Rates among Children born in 2005 (Percent +/- half 95% Confidence Interval)
State & Breakdown Number Formula Supplementation1
before 2 days of age		 Number Formula Supplementation1
before 3 months of age		 Number Formula Supplementation1
before 6 months of age
US Nation 18114 24.9±1.1 14354 38.1±1.4 10901 44.9±1.7
ALABAMA 241 21.9±6.0 176 40.8±8.7 130 52.6±9.9
ALASKA 262 15.8±5.3 213 31.4±7.3 168 31.7±7.7
ARIZONA 339 32.3±6.5 272 44.1±7.3 198 52.7±8.5
ARKANSAS 289 27.7±6.7 217 41.7±8.3 150 50.8±10.1
CALIFORNIA 1263 26.9±4.2 1087 37.8±5.1 867 44.8±5.9
      CA-Alameda County 231 16.8±5.5 210 36.8±7.8 178 50.8±8.4
      CA-Los Angeles County 325 36.8±6.0 288 46.2±6.6 218 52.4±7.5
      CA-San Bernardino County 188 21.4±6.4 151 33.1±8.3 113 39.2±10.0
      CA-Northern CA  109 14.9±7.7 90 25.2±10.0 72 31.5±11.6
COLORADO 305 17.5±7.0 262 27.3±7.3 206 32.9±8.8
CONNECTICUT 258 21.2±6.1 212 36.3±7.6 156 49.1±8.8
DELAWARE 294 25.5±5.9 220 43.2±8.0 156 54.8±9.0
DISTRICT OF COLUMBIA 313 29.3±5.8 270 47.0±6.8 226 61.4±7.2
FLORIDA 669 27.4±5.7 523 41.6±7.7 357 40.7±8.8
      FL-Miami-Dade County 327 35.7±7.0 256 46.9±8.7 174 58.5±11.6
GEORGIA 326 28.0±7.0 243 42.8±8.7 183 47.8±10.1
HAWAII 294 28.7±6.6 248 37.7±6.9 193 45.2±7.9
IDAHO 246 15.6±5.1 213 26.6±6.4 169 27.9±7.3
ILLINOIS 742 22.3±4.1 580 33.6±5.4 423 44.5±6.9
      IL-City of Chicago 289 33.0±6.8 223 42.7±8.4 151 51.3±9.8
INDIANA 481 21.4±5.9 356 30.3±7.4 283 49.1±8.8
      IN-Marion County 189 25.9±7.4 141 41.8±9.5 108 56.3±10.7
IOWA 210 16.7±5.8 156 27.7±8.0 122 40.2±9.8
KANSAS 264 18.4±5.8 194 30.4±8.1 148 36.5±9.6
KENTUCKY 227 13.8±5.3 160 21.9±7.4 117 38.1±9.9
LOUISIANA 264 18.7±6.1 188 28.5±8.2 133 30.0±9.5
MAINE 244 12.2±5.2 187 18.9±6.2 149 37.7±8.3
MARYLAND 429 27.8±5.6 354 44.6±6.8 268 49.2±7.9
MASSACHUSETTS 265 23.6±6.7 210 34.4±8.0 167 43.5±9.2
MICHIGAN 270 22.4±5.7 212 36.0±7.5 149 41.3±9.2
MINNESOTA 292 13.6±4.9 241 28.2±6.8 186 39.9±8.5
MISSISSIPPI 208 17.9±6.1 159 43.6±9.6 90 57.4±12.7
MISSOURI 284 16.5±4.9 206 30.4±7.9 148 33.1±8.7
MONTANA 293 13.0±4.7 248 26.0±6.6 195 34.0±7.4
NEBRASKA 250 13.4±5.2 207 34.6±7.8 166 45.1±9.0
NEVADA 281 30.5±6.3 224 40.6±7.3 158 39.5±8.7
NEW HAMPSHIRE 248 18.6±5.4 202 31.9±7.1 160 39.0±8.3
NEW JERSEY 315 34.4±6.8 254 53.4±7.5 181 55.3±8.8
NEW MEXICO 294 18.0±5.2 232 28.8±7.1 182 35.7±8.5
NEW YORK 584 35.3±4.5 479 48.1±5.1 359 58.7±5.6
      NY-NYC 5 Counties 362 44.0±5.7 303 55.0±6.3 229 67.3±6.7
NORTH CAROLINA 275 22.5±6.2 207 40.4±7.9 168 47.8±8.9
NORTH DAKOTA 234 10.9±4.1 185 19.3±7.1 146 32.8±8.1
OHIO 310 19.6±5.3 219 39.7±7.7 165 42.7±8.7
OKLAHOMA 259 20.4±6.9 182 28.5±7.1 130 36.0±9.1
OREGON 247 18.4±5.7 216 24.2±6.4 185 32.8±7.5
PENNSYLVANIA 537 18.5±4.3 418 34.6±5.9 314 43.8±7.0
      PA-Philadelphia 193 31.4±8.3 151 43.6±9.3 117 53.8±10.4
RHODE ISLAND 234 29.9±8.0 194 37.8±9.5 154 45.1±9.7
SOUTH CAROLINA 337 24.4±5.5 254 38.2±7.1 185 45.3±8.7
SOUTH DAKOTA 283 16.6±5.5 221 32.2±7.8 168 42.0±9.3
TENNESSEE 262 26.1±7.3 186 40.3±9.1 137 47.2±10.7
TEXAS 1435 32.3±4.8 1124 43.1±5.4 819 47.5±6.2
      TX-Bexar County 290 29.5±7.8 223 49.2±9.1 158 54.9±10.5
      TX-City of Houston 318 39.3±6.2 255 53.6±7.1 188 59.8±8.2
      TX-Dallas County 296 31.1±6.7 251 44.8±7.5 193 55.2±8.4
      TX-El Paso County 236 27.5±6.5 167 37.0±8.1 114 51.6±10.3
UTAH 311 18.3±5.2 276 38.1±7.5 217 40.2±8.0
VERMONT 244 10.0±4.2 210 21.6±6.2 178 31.3±7.5
VIRGINIA 332 22.9±5.9 268 38.9±7.5 214 47.8±8.7
WASHINGTON 555 19.7±4.3 463 32.8±5.5 376 36.6±6.3
      WA-Eastern/Western WA 290 15.1±4.7 248 28.9±7.0 203 28.4±7.0
WEST VIRGINIA 216 24.7±7.9 141 44.1±9.6 101 47.3±11.5
WISCONSIN 228 16.0±5.7 178 31.3±8.3 137 42.3±10.0
WYOMING 271 12.9±4.7 207 20.2±6.3 164 33.2±8.6
1Formula supplementation is defined as supplementation of breast milk with formula (with or without other supplementary liquids or solids) among infants breastfed at the age specified (2 days, 3 months, or 6 months). The denominator for the 2 day, 3 month, or 6 month rate is the number of infants breastfeeding at 2 days, 3 months, or 6 months, respectively.

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.