Table 11b: Live Births by Gestation and Resident County New York State - 2011

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 239,736 110 399 1,178 2,575 3,347 17,935 192,225 14,664 7,303
New York City
New York City 118,719 38 171 603 1,268 1,643 9,210 98,036 6,988 762
Bronx 21,694 6 43 132 257 340 1,785 17,886 1,124 121
Kings 41,673 10 55 218 445 603 3,249 34,310 2,530 253
New York 19,508 3 29 90 196 244 1,377 16,103 1,257 209
Queens 30,300 17 33 145 306 387 2,334 25,224 1,683 171
Richmond 5,544 2 11 18 64 69 465 4,513 394 8
Rest of State
Rest of State 121,017 72 228 575 1,307 1,704 8,725 94,189 7,676 6,541
Albany 3,122 6 13 17 32 53 242 2,363 162 234
Allegany 526 1 0 2 8 7 33 401 40 34
Broome 2,052 2 2 7 26 24 135 1,701 120 35
Cattaraugus 911 1 3 4 8 15 78 601 72 129
Cayuga 803 0 2 5 7 9 53 656 58 13
Chautauqua 1,412 1 4 7 17 25 129 1,046 101 82
Chemung 1,025 0 4 5 10 10 77 801 81 37
Chenango 525 0 2 2 6 4 46 431 24 10
Clinton 769 0 4 2 11 17 47 603 70 15
Columbia 544 1 0 2 5 13 35 413 47 28
Cortland 481 0 0 2 9 6 23 338 53 50
Delaware 392 0 0 2 5 9 28 297 42 9
Dutchess 2,652 0 4 17 26 47 192 2,161 151 54
Erie 9,693 10 26 41 101 111 716 7,298 563 827
Essex 314 0 0 1 3 3 18 240 36 13
Franklin 521 0 0 3 8 11 43 375 42 39
Fulton 584 0 2 2 12 7 32 418 62 49
Genesee 586 0 0 2 5 4 28 437 41 69
Greene 428 1 2 3 1 7 35 319 37 23
Hamilton 39 0 0 0 0 0 1 31 6 1
Herkimer 659 0 0 2 6 3 49 539 56 4
Jefferson 2,113 2 2 6 30 36 156 1,668 170 43
Lewis 338 1 2 0 2 3 24 258 30 18
Livingston 577 1 0 0 2 5 41 443 53 32
Madison 696 1 0 2 3 10 58 567 37 18
Monroe 8,427 4 18 46 80 107 530 6,201 601 840
Montgomery 567 0 1 2 4 14 33 405 41 67
Nassau 14,079 8 17 51 162 203 1,152 11,592 710 184
Niagara 2,129 0 3 17 21 39 161 1,646 139 103
Oneida 2,689 3 6 14 28 40 228 2,115 191 64
Onondaga 5,416 3 9 38 57 66 402 4,482 335 24
Ontario 1,020 0 0 5 11 14 80 755 99 56
Orange 4,835 4 11 31 55 49 301 3,747 308 329
Orleans 411 0 0 2 5 5 24 311 26 38
Oswego 1,348 1 5 5 12 18 86 1,090 112 19
Otsego 535 0 2 3 10 2 29 427 58 4
Putnam 866 0 2 4 10 11 63 713 41 22
Rensselaer 1,730 0 2 10 12 26 131 1,325 123 101
Rockland 4,535 1 13 13 29 52 235 3,305 313 574
St Lawrence 1,254 1 2 4 11 16 94 946 108 72
Saratoga 2,148 1 5 11 15 42 125 1,683 155 111
Schenectady 1,764 1 6 11 30 31 110 1,444 49 82
Schoharie 288 0 0 0 3 2 17 235 21 10
Schuyler 161 0 0 0 2 2 11 122 16 8
Seneca 399 1 1 2 5 4 28 298 38 22
Steuben 1,058 0 0 9 11 14 71 783 86 84
Suffolk 16,027 7 22 70 198 249 1,304 12,476 941 760
Sullivan 808 1 4 3 12 15 62 636 49 26
Tioga 481 0 0 2 8 7 25 339 29 71
Tompkins 915 0 1 4 13 6 47 731 78 35
Ulster 1,666 0 0 14 17 21 81 1,332 120 81
Warren 601 0 1 4 2 9 47 447 54 37
Washington 655 0 2 2 8 10 30 494 60 49
Wayne 1,033 0 1 1 8 9 65 760 88 101
Westchester 10,719 7 21 57 119 173 792 8,423 471 656
Wyoming 389 0 0 4 4 3 29 297 22 30
Yates 302 1 1 0 2 6 13 224 40 15

* 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.