Table 4.    Chlamydia — Reported cases and rates by state/area and region listed in alphabetical order: United States and outlying areas, 1996–2000

 

Cases

Rates per 100,000 Population

State/Area

1996

1997

1998

1999

2000

1996

1997

1998

1999

2000

Alabama

8,306

8,704

10,065

12,375

15,323

193.7

201.5

231.3

283.2

350.7

Alaska

1,360

1,616

1,907

1,886

2,569

224.8

265.2

310.6

304.4

414.7

Arizona

10,692

10,783

11,489

12,111

12,591

241.1

236.7

246.1

253.5

263.5

Arkansas

2,111

2,503

4,123

5,865

6,219

84.2

99.2

162.4

229.9

243.8

California

61,593

68,737

76,519

85,156

95,392

193.3

213.0

234.2

256.9

287.8

Colorado

7,282

7,749

9,113

10,848

12,000

190.8

199.1

229.5

267.4

295.8

Connecticut

6,269

6,377

6,977

7,422

7,604

191.9

195.0

213.1

226.1

231.7

Delaware

2,271

2,613

2,608

2,761

2,856

313.9

357.2

350.7

366.4

379.0

Florida

24,763

26,788

24,949

31,410

33,390

171.7

182.8

167.3

207.9

221.0

Georgia

13,555

15,911

25,250

30,368

29,359

184.8

212.5

330.4

389.9

377.0

Hawaii

1,816

1,829

2,604

3,165

3,547

153.5

154.1

218.3

267.0

299.2

Idaho

1,524

1,709

2,035

1,778

1,907

128.3

141.2

165.6

142.0

152.4

Illinois

24,430

23,024

26,363

32,870

32,991

206.2

193.5

218.9

271.0

272.0

Indiana

10,334

9,600

10,801

11,734

14,063

177.3

163.7

183.1

197.4

236.6

Iowa

4,165

4,907

5,174

5,511

5,987

146.2

172.0

180.8

192.1

208.6

Kansas

4,449

4,627

5,587

6,093

6,056

172.5

178.3

212.5

229.6

228.2

Kentucky

6,805

6,332

6,441

7,378

8,063

175.3

162.0

163.6

186.3

203.6

Louisiana

11,020

11,545

15,188

16,635

17,846

253.9

265.3

347.6

380.5

408.2

Maine

967

1,066

1,073

1,220

1,474

78.1

85.8

86.2

97.4

117.6

Maryland

11,901

13,978

13,097

13,568

14,533

235.2

274.4

255.1

262.4

281.0

Massachusetts

6,837

7,984

8,363

8,776

10,967

112.4

130.5

136.0

142.1

177.6

Michigan

19,865

21,399

22,156

23,107

26,237

204.1

218.9

225.7

234.3

266.0

Minnesota

5,607

6,631

6,970

7,450

8,102

120.6

141.5

147.5

156.0

169.7

Mississippi

4,848

10,020

10,614

11,545

12,697

178.8

367.0

385.7

417.0

458.6

Missouri

11,959

12,257

12,670

13,355

13,448

223.0

226.9

233.0

244.2

245.9

Montana

1,124

1,146

1,412

1,584

1,469

128.2

130.4

160.4

179.4

166.4

Nebraska

2,544

2,766

2,911

3,616

3,791

154.3

166.9

175.1

217.0

227.5

Nevada

2,847

2,887

3,320

3,086

4,019

177.8

172.2

190.1

170.6

222.1

New Hampshire

732

816

960

976

1,130

63.1

69.6

81.0

81.3

94.1

New Jersey

12,273

10,339

11,686

12,424

10,814

153.4

128.4

144.0

152.6

132.8

New Mexico

4,007

4,021

3,793

5,017

5,204

234.2

232.5

218.4

288.4

299.1

New York+

26,455

28,468

26,218

26,766

31,494

360.7

387.7

353.3

360.3

173.1

North Carolina

15,078

17,108

22,197

21,812

21,985

206.3

230.4

294.1

285.1

287.4

North Dakota

1,016

902

1,036

947

909

158.1

140.7

162.3

149.4

143.5

Ohio

20,653

22,827

27,786

29,398

31,190

185.0

204.1

247.9

261.2

277.1

Oklahoma

7,379

7,419

9,393

8,195

9,331

223.9

223.7

280.7

244.0

277.9

Oregon

5,457

5,270

5,855

6,127

7,107

170.7

162.5

178.4

184.8

214.3

Pennsylvania

19,275

19,838

24,629

27,019

26,475

160.1

165.0

205.2

225.3

220.7

Rhode Island

1,833

2,069

2,307

2,345

2,632

185.5

209.5

233.4

236.7

265.6

South Carolina

9,391

12,511

18,510

18,499

9,950

252.7

332.7

482.5

476.1

256.1

South Dakota

1,538

1,439

1,572

1,544

1,834

208.5

195.0

213.0

210.6

250.2

Tennessee

13,125

12,502

13,717

14,216

15,069

247.3

232.9

252.6

259.2

274.8

Texas

43,003

50,675

60,436

62,958

68,814

225.3

260.7

305.9

314.1

343.3

Utah

1,598

1,774

2,209

2,219

2,190

79.2

86.2

105.2

104.2

102.8

Vermont

398

434

413

485

526

67.9

73.7

69.9

81.7

88.6

Virginia

11,756

11,955

13,561

13,735

15,352

176.4

177.5

199.7

199.8

223.4

Washington

9,236

9,523

10,998

11,964

13,066

167.3

169.7

193.3

207.8

227.0

West Virginia

2,325

3,108

2,791

1,820

2,144

127.7

171.2

154.1

100.7

118.7

Wisconsin

10,290

9,554

13,999

14,462

16,365

200.0

184.8

268.0

275.4

311.7

Wyoming

621

635

725

787

807

129.4

132.4

150.8

164.1

168.3

U.S. TOTAL1

490,681

531,744

607,752

659,108

702,093

192.9

207.0

234.2

251.6

257.5

Northeast

75,039

77,391

82,626

87,433

93,116

184.4

189.7

201.7

212.9

179.7

Midwest

116,850

119,933

137,025

150,087

160,973

187.9

192.0

217.9

237.3

254.5

South

189,635

216,741

256,122

275,860

286,136

203.9

230.1

268.4

286.0

296.6

West

109,157

117,679

131,979

145,728

161,868

186.6

198.1

219.0

238.3

264.7

Guam

304

368

410

497

525

199.1

235.6

256.5

303.9

321.1

Puerto Rico

2,481

2,123

1,685

1,445

2,695

66.7

55.5

43.7

37.2

69.3

Virgin Islands

11

14

10

136

131

10.0

12.8

9.1

120.5

116.1

OUTLYING AREAS

2,796

2,505

2,105

2,078

3,351

70.2

61.2

51.0

49.9

80.4

TOTAL

493,477

534,249

609,857

661,186

705,444

191.0

204.7

231.3

248.5

254.8

The number of chlamydia cases occurring in the fourth quarter of 2000 for the State of Colorado was projected based on case counts from the first three quarters.

+New York City has been reporting chlamydia cases since 1984. However, the State of New York, with the exception of New York City, initiated chlamydia reporting during the year 2000. As a result, the number of chlamydia cases reported by the state of New York (including the cities of Buffalo, Rochester and Yonkers) may be incomplete and the rate for New York State is underestimated. See Appendix.

1Includes cases reported by Washington, D.C., and rates exclude population of states that did not report.


Page last modified: December 3, 2001
Page last reviewed: December 3, 2001 Historical Document

Content Source: Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention