Table 11b: Live Births by Gestation and Resident County New York State - 2009

County  Gestation in Weeks*
Total < 20 20-23 24-27 28-31 32-33 34-36 37-41 42+ Unknown
New York State
New York State 246,592 122 428 1,284 2,905 3,830 20,410 194,230 14,179 9,204
New York City
New York City 121,745 49 173 672 1,540 2,089 11,020 97,408 6,162 2,632
Bronx 23,000 11 46 167 317 398 2,245 18,188 950 678
Kings 42,101 13 46 224 526 709 3,733 33,669 2,320 861
New York 20,167 9 35 88 238 383 1,953 15,755 988 718
Queens 30,748 10 37 168 388 501 2,588 25,179 1,538 339
Richmond 5,729 6 9 25 71 98 501 4,617 366 36
Rest of State
Rest of State 124,847 73 255 612 1,365 1,741 9,390 96,822 8,017 6,572
Albany 3,176 3 9 15 43 34 211 2,489 158 214
Allegany 521 1 1 2 8 8 33 398 38 32
Broome 2,061 5 5 12 23 18 162 1,703 113 20
Cattaraugus 978 0 0 9 6 11 85 641 91 135
Cayuga 812 0 1 2 11 12 54 635 78 19
Chautauqua 1,442 0 1 1 19 18 106 1,129 111 57
Chemung 978 0 1 5 17 12 84 753 63 43
Chenango 524 0 0 3 3 8 28 441 33 8
Clinton 787 0 0 1 7 19 56 632 64 8
Columbia 565 0 1 2 5 9 41 447 38 22
Cortland 556 1 5 7 10 6 35 384 38 70
Delaware 458 0 0 0 4 13 39 355 37 10
Dutchess 2,917 0 7 12 38 33 197 2,287 183 160
Erie 9,797 11 24 60 128 162 725 7,792 600 295
Essex 351 1 5 1 4 4 22 279 27 8
Franklin 514 0 3 3 7 12 42 386 54 7
Fulton 556 1 1 5 1 5 29 429 40 45
Genesee 657 0 1 4 8 10 36 513 34 51
Greene 442 0 1 0 12 6 34 341 31 17
Hamilton 40 0 0 0 0 0 4 32 3 1
Herkimer 671 0 5 6 4 8 55 530 53 10
Jefferson 1,995 2 7 8 21 30 131 1,512 146 138
Lewis 351 0 0 0 3 3 22 258 30 35
Livingston 574 0 0 1 3 2 38 469 36 25
Madison 680 0 0 2 9 13 46 544 58 8
Monroe 8,580 7 22 39 69 87 593 6,358 592 813
Montgomery 611 1 1 1 10 8 39 443 62 46
Nassau 14,683 7 29 63 165 258 1,262 11,746 834 319
Niagara 2,305 0 11 17 29 27 198 1,796 153 74
Oneida 2,633 1 3 22 26 34 226 2,120 157 44
Onondaga 5,479 2 17 27 70 75 413 4,446 365 64
Ontario 1,051 0 3 4 6 12 79 781 87 79
Orange 5,062 4 11 26 44 56 346 3,865 344 366
Orleans 441 0 0 1 5 3 42 333 32 25
Oswego 1,409 2 5 8 15 17 95 1,113 137 17
Otsego 484 0 2 1 9 1 28 400 37 6
Putnam 894 0 1 6 9 11 65 735 39 28
Rensselaer 1,772 0 7 5 27 18 127 1,330 109 149
Rockland 4,560 2 5 17 37 46 260 3,109 290 794
St Lawrence 1,191 0 1 6 4 20 89 885 114 72
Saratoga 2,222 0 3 6 24 38 142 1,767 140 102
Schenectady 1,799 4 5 9 17 28 110 1,464 83 79
Schoharie 279 0 1 1 2 4 23 225 18 5
Schuyler 158 0 0 0 4 5 13 117 11 8
Seneca 370 0 1 2 2 3 19 289 41 13
Steuben 1,118 1 1 10 12 14 58 884 87 51
Suffolk 17,183 7 20 93 186 255 1,418 13,288 1,033 883
Sullivan 861 0 3 6 11 15 55 677 50 44
Tioga 429 0 0 1 2 8 37 312 28 41
Tompkins 918 4 1 1 8 14 58 718 69 45
Ulster 1,706 1 3 5 17 18 93 1,292 107 170
Warren 640 0 1 2 7 8 47 480 66 29
Washington 625 0 0 2 7 7 41 472 71 25
Wayne 1,065 0 0 3 8 15 75 759 95 110
Westchester 11,143 5 20 66 133 171 983 8,626 540 599
Wyoming 418 0 0 1 4 4 24 337 31 17
Yates 355 0 0 0 2 5 17 276 38 17

* Gestation in weeks is the number of days between the date of last menses and date of birth divided by 7.

Range of weeks reflects the number of completed weeks gestation. For example 36 weeks and 6 days would be in the 34-36 range.