Table 1. Sexually Transmitted Infections — Reported Cases and Rates of Reported Cases*, United States

About

The table below is from Sexually Transmitted Infections Surveillance, 2023.

1941-2023

Year† Syphilis Gonorrhea Chlamydia Chancroid¶
Total
Syphilis‡		 Congenital Primary and Secondary Early Non-Primary Non-Secondary§ Unknown Duration or Late§
Cases Rate Cases Rate‖ Cases Rate Cases Rate Cases Rate Cases Rate Cases Rate Cases Rate
1941 485,560 368.2 17,600 651.1 68,231 51.7 109,018 82.6 202,984 153.9 193,468 146.7 NR — 3,384 2.5
1942 479,601 363.4 16,918 566.0 75,312 57.0 116,245 88.0 202,064 153.1 212,403 160.9 NR — 5,477 4.1
1943 575,593 447.0 16,164 520.7 82,204 63.8 149,390 116.0 251,958 195.7 275,070 213.6 NR — 8,354 6.4
1944 467,755 367.9 13,578 462.0 78,443 61.6 123,038 96.7 202,848 159.6 300,676 236.5 NR — 7,878 6.1
1945 359,114 282.3 12,339 431.7 77,007 60.5 101,719 79.9 142,187 111.8 287,181 225.8 NR — 5,515 4.3
1946 363,647 271.7 12,106 354.9 94,957 70.9 107,924 80.6 125,248 93.6 368,020 275.0 NR — 7,091 5.2
1947 355,592 252.3 12,200 319.6 93,545 66.4 104,124 73.9 122,089 86.6 380,666 270.0 NR — 9,515 6.7
1948 314,313 218.2 13,931 383.0 68,174 47.3 90,598 62.9 123,312 85.6 345,501 239.8 NR — 7,661 5.3
1949 256,463 175.3 13,952 382.4 41,942 28.7 75,045 51.3 116,397 79.5 317,950 217.3 NR — 6,707 4.6
1950 217,558 146.0 13,377 368.3 23,939 16.7 59,256 39.7 113,569 70.2 286,746 192.5 NR — 4,977 3.3
1951 174,924 116.1 11,094 290.4 14,485 9.6 43,316 28.7 98,311 65.2 254,470 168.9 NR — 4,233 2.8
1952 167,762 110.2 8,553 218.8 10,449 6.9 36,454 24.0 105,238 69.1 244,957 160.8 NR — 3,738 2.5
1953 148,573 95.9 7,675 193.9 8,637 5.6 28,295 18.3 98,870 63.8 238,340 153.9 NR — 3,338 2.2
1954 130,697 82.9 6,676 164.0 7,147 4.5 23,861 15.1 89,123 56.5 242,050 153.5 NR — 3,003 1.9
1955 122,392 76.2 5,354 130.7 6,454 4.0 20,054 12.5 86,526 53.8 236,197 147.0 NR — 2,649 1.7
1956 130,201 78.7 5,491 130.4 6,392 3.9 19,783 12.0 95,097 57.5 224,346 135.7 NR — 2,135 1.3
1957 123,758 73.5 5,288 123.0 6,576 3.9 17,796 10.6 91,309 54.2 214,496 127.4 NR — 1,637 1.0
1958 113,884 66.4 4,866 114.6 7,176 4.2 16,556 9.7 83,027 48.4 232,386 135.6 NR — 1,595 0.9
1959 120,824 69.2 5,130 119.7 9,799 5.6 17,025 9.8 86,740 49.7 240,254 137.6 NR — 1,537 0.9
1960 122,538 68.8 4,416 103.7 16,145 9.1 18,017 10.1 81,798 45.9 258,933 145.4 NR — 1,680 0.9
1961 124,658 68.8 4,163 97.5 19,851 11.0 19,486 10.8 79,304 43.8 264,158 145.8 NR — 1,438 0.8
1962 126,245 68.7 4,070 97.7 21,067 11.5 19,585 10.7 79,533 43.3 263,714 143.6 NR — 1,344 0.7
1963 124,137 66.5 4,031 98.4 22,251 11.9 18,235 9.8 78,076 41.8 278,289 149.0 NR — 1,220 0.7
1964 114,325 60.4 3,516 87.3 22,969 12.1 17,781 9.4 68,629 36.3 300,666 158.9 NR — 1,247 0.7
1965 112,842 58.9 3,564 94.8 23,338 12.2 17,458 9.1 67,317 35.1 324,925 169.5 NR — 982 0.5
1966 105,159 54.2 3,170 87.9 21,414 11.0 15,950 8.2 63,541 32.7 351,738 181.2 NR — 838 0.4
1967 102,581 52.2 2,894 82.2 21,053 10.7 15,554 7.9 61,975 31.5 404,836 205.9 NR — 784 0.4
1968 96,271 48.4 2,381 68.0 19,019 9.6 15,150 7.6 58,564 29.4 464,543 233.4 NR — 845 0.4
1969 92,162 45.7 2,074 57.6 19,130 9.5 15,402 7.6 54,587 27.1 534,872 265.4 NR — 1,104 0.5
1970 91,382 44.8 1,953 52.3 21,982 10.8 16,311 8.0 50,348 24.7 600,072 294.2 NR — 1,416 0.7
1971 95,997 46.4 2,052 57.7 23,783 11.5 19,417 9.4 49,993 24.2 670,268 324.1 NR — 1,320 0.6
1972 91,149 43.6 1,758 54.0 24,429 11.7 20,784 9.9 43,456 20.8 767,215 366.6 NR — 1,414 0.7
1973 87,469 41.4 1,527 48.7 24,825 11.7 23,584 11.2 37,054 17.5 842,621 398.7 NR — 1,165 0.6
1974 83,771 39.3 1,138 36.0 25,385 11.9 25,124 11.8 31,854 14.9 906,121 424.7 NR — 945 0.4
1975 80,356 37.3 916 29.1 25,561 11.9 26,569 12.3 27,096 12.6 999,937 464.1 NR — 700 0.3
1976 71,761 33.0 626 19.8 23,731 10.9 25,363 11.7 21,905 10.1 1,001,994 460.6 NR — 628 0.3
1977 64,621 29.4 463 13.9 20,399 9.3 21,329 9.7 22,313 10.2 1,002,219 456.0 NR — 455 0.2
1978 64,875 29.2 434 13.0 21,656 9.8 19,628 8.8 23,038 10.4 1,013,436 456.3 NR — 521 0.2
1979 67,049 29.9 332 9.5 24,874 11.1 20,459 9.1 21,301 9.5 1,004,058 447.1 NR — 840 0.4
1980 68,832 30.3 277 7.7 27,204 12.0 20,297 8.9 20,979 9.2 1,004,029 442.1 NR — 788 0.3
1981 72,799 31.7 287 7.9 31,266 13.6 21,033 9.2 20,168 8.8 990,864 431.8 NR — 850 0.4
1982 75,579 32.6 259 7.0 33,613 14.5 21,894 9.5 19,779 8.5 960,633 414.7 NR — 1,392 0.6
1983 74,637 31.9 239 6.6 32,698 14.0 23,738 10.2 17,896 7.7 900,435 385.1 NR — 847 0.4
1984 69,872 29.6 305 8.3 28,607 12.1 23,131 9.8 17,829 7.6 878,556 372.5 7,594 6.5 665 0.3
1985 67,563 28.4 329 8.7 27,131 11.4 21,689 9.1 18,414 7.7 911,419 383.0 25,848 17.4 2,067 0.9
1986 67,779 28.2 410 10.9 27,667 11.5 21,656 9.0 18,046 7.5 892,229 371.5 58,001 35.2 3,045 1.3
1987 87,286 36.0 480 12.6 35,585 14.7 28,233 11.7 22,988 9.5 787,532 325.0 91,913 50.8 4,986 2.1
1988 104,546 42.8 741 19.0 40,474 16.6 35,968 14.7 27,363 11.2 738,160 301.9 157,854 87.1 4,891 2.0
1989 115,089 46.6 1,837 45.5 45,826 18.6 45,394 18.4 22,032 8.9 733,294 297.1 200,904 102.5 4,697 1.9
1990 135,590 54.3 3,865 92.9 50,578 20.3 55,397 22.2 25,750 10.3 690,042 276.4 323,663 160.2 4,212 1.7
1991 128,719 50.9 4,424 107.6 42,950 17.0 53,855 21.3 27,490 10.9 621,918 245.8 381,228 179.7 3,476 1.4
1992 114,730 44.7 4,067 100.0 34,009 13.3 49,929 19.5 26,725 10.4 502,858 196.0 409,694 182.3 1,906 0.7
1993 102,612 39.5 3,420 85.5 26,527 10.2 41,919 16.1 30,746 11.8 444,649 171.1 405,332 178.0 1,292 0.5
1994 82,713 31.4 2,452 62.0 20,641 7.8 32,017 12.2 27,603 10.5 419,602 163.9 451,785 192.5 782 0.3
1995 69,359 26.0 1,863 47.8 16,543 6.2 26,657 10.0 24,296 9.1 392,651 147.5 478,577 187.8 607 0.2
1996 53,240 19.8 1,282 32.9 11,405 4.2 20,187 7.5 20,366 7.6 328,169 121.8 492,631 190.6 386 0.1
1997 46,716 17.1 1,082 27.9 8,556 3.1 16,631 6.1 20,447 7.5 327,665 120.2 537,904 205.5 246 0.1
1998 38,289 13.9 843 21.4 7,007 2.5 12,696 4.6 17,743 6.4 356,492 129.2 614,250 231.8 189 0.1
1999 35,386 12.7 580 14.6 6,617 2.4 11,534 4.1 16,655 6.0 360,813 129.3 662,647 247.2 110 0.0
2000 31,618 11.2 580 14.3 5,979 2.1 9,465 3.4 15,594 5.5 363,136 128.7 709,452 251.4 78 0.0
2001 32,286 11.3 506 12.6 6,103 2.1 8,701 3.0 16,976 5.9 361,705 126.8 783,242 274.5 38 0.0
2002 32,919 11.4 460 11.4 6,862 2.4 8,429 2.9 17,168 6.0 351,852 122.0 834,555 289.4 48 0.0
2003 34,289 11.8 432 10.6 7,177 2.5 8,361 2.9 18,319 6.3 335,104 115.2 877,478 301.7 54 0.0
2004 33,423 11.4 375 9.1 7,980 2.7 7,768 2.6 17,300 5.9 330,132 112.4 929,462 316.5 30 0.0
2005 33,288 11.2 339 8.2 8,724 2.9 8,176 2.8 16,049 5.4 339,593 114.6 976,445 329.4 17 0.0
2006 36,958 12.3 372 8.7 9,756 3.3 9,186 3.1 17,644 5.9 358,366 119.7 1,030,911 344.3 19 0.0
2007 40,925 13.6 435 10.1 11,466 3.8 10,768 3.6 18,256 6.1 355,991 118.0 1,108,374 367.5 23 0.0
2008 46,292 15.2 446 10.5 13,500 4.4 12,401 4.1 19,945 6.6 336,742 110.7 1,210,523 398.1 25 0.0
2009 44,832 14.6 431 10.4 13,997 4.6 13,066 4.3 17,338 5.6 301,174 98.1 1,244,180 405.3 28 0.0
2010 45,844 14.8 387 9.7 13,774 4.5 13,604 4.4 18,079 5.9 309,341 100.2 1,307,893 423.6 24 0.0
2011 46,040 14.8 358 9.1 13,970 4.5 13,136 4.2 18,576 6.0 321,849 103.3 1,412,791 453.4 8 0.0
2012 49,915 15.9 334 8.4 15,667 5.0 14,503 4.6 19,411 6.2 334,826 106.7 1,422,976 453.3 15 0.0
2013 56,485 17.9 362 9.2 17,375 5.5 16,929 5.4 21,819 6.9 333,004 105.3 1,401,906 443.5 10 0.0
2014 63,454 19.9 462 11.6 19,999 6.3 19,452 6.1 23,541 7.4 350,062 109.8 1,441,789 452.2 6 0.0
2015 74,710 23.2 495 12.4 23,872 7.4 24,173 7.5 26,170 8.1 395,216 123.0 1,526,658 475.0 11 0.0
2016 88,056 27.3 642 16.3 27,814 8.6 28,924 9.0 30,676 9.5 468,514 145.0 1,598,354 494.7 7 0.0
2017 101,595 31.2 946 24.5 30,644 9.4 34,013 10.4 35,992 11.1 555,608 170.6 1,708,569 524.6 7 0.0
2018 115,067 35.2 1,328 35.0 35,063 10.7 38,539 11.8 40,137 12.3 583,405 178.3 1,758,668 537.5 3 0.0
2019 129,827 39.6 1,884 50.3 38,992 11.9 41,655 12.7 47,296 14.4 616,392 187.8 1,808,703 551.0 8 0.0
2020 133,960 40.4 2,163 59.9 41,655 12.6 43,145 13.0 46,997 14.2 677,769 204.5 1,579,885 476.7 0 0.0
2021 176,739 53.3 2,881 78.6 53,767 16.2 51,830 15.6 68,261 20.6 710,151 214.0 1,644,416 495.5 3 0.0
2022 207,269 62.2 3,769 102.8 59,016 17.7 56,913 17.1 87,571 26.3 648,056 194.4 1,649,716 495.0 1 0.0
2023 209,253 62.5 3,882 105.8 53,007 15.8 53,573 16.0 98,791 29.5 601,319 179.5 1,648,568 492.2 4 0.0
* Per 100,000 population

† For 1941–1946, data were reported for the federal fiscal year ending June 30 of the year indicated. From 1947 to the present, data were reported for the calendar year ending December 31. For 1941–1958, data for Alaska and Hawaii were not included.

‡ Includes all stages of syphilis, congenital syphilis, and cases reported with stage of syphilis not stated.

§ In 2018, a revised syphilis case definition went into effect with new case classifications. Prior to 2018, cases identified as 'Early Non-Primary Non-Secondary Syphilis' were classified as 'Early Latent Syphilis.' Prior to 2018, cases in the 'Unknown duration or late syphilis' category included cases classified as late latent syphilis, latent syphilis of unknown duration, late syphilis with clinical manifestations, and neurosyphilis.

‖ Per 100,000 live births

¶ Although nationally notifiable, chancroid is not a reportable condition in all jurisdictions

NR = No report.

NOTE: The number of cases and the rates shown here supersede those published in previous STI surveillance reports. Cases and rates shown in this table include District of Columbia but exclude US territories. Case definitions have changed over time. See Technical Notes for more information. This report includes data from years that coincide with the COVID-19 pandemic, which introduced uncertainty and difficulty in interpreting case data. See Impact of COVID-19 on STIs for more information.
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Content Source:
National Center for HIV, Viral Hepatitis, STD, and Tuberculosis Prevention; About Division of STD Prevention