RANKING · 2024 ACS · 500 SHOWN OF 3,144

Largest households, US counties

US counties ranked by average household size (2024 ACS). Oglala Lakota County, South Dakota leads at 4.46. 3,144 counties qualify in total. Texas carries 7 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2010

USUnited States334,922,4992.54–

01Oglala Lakota County, SDSD13,3384.46–

02Kusilvak Census Area, AKAK7,9324.16–

03Northwest Arctic, AKAK7,0953.81−2%

04Wheeler County, GAGA7,5703.79+34%

05Jim Hogg County, TXTX4,5553.64+22%

06Bethel Census Area, AKAK18,3913.63−6%

07Alpine County, CACA1,0433.61+26%

08Bennett County, SDSD3,3073.59+17%

09Sterling County, TXTX1,3493.59+39%

10Todd County, SDSD8,8633.57−5%

11Buffalo County, SDSD1,8023.56−7%

12Aleutians West Census Area, AKAK5,2403.50+28%

13Imperial County, CACA181,4113.49+4%

14Hudspeth County, TXTX3,4333.46+8%

15La Salle County, TXTX6,5173.46+9%

16Starr County, TXTX66,3193.42−10%

17Madera County, CACA167,9273.41+3%

18Calhoun County, ILIL4,3003.41+39%

19North Slope, AKAK10,5823.40−24%

20Utah County, UTUT759,8593.39−3%

21McMullen County, TXTX5443.38+16%

22Morgan County, UTUT13,3833.38+2%

23Corson County, SDSD3,7813.37−7%

24Kaufman County, TXTX209,2353.36+15%

25Nome Census Area, AKAK9,8303.33+1%

26Jackson County, SDSD2,6663.33+8%

27Merced County, CACA297,2603.32−1%

28Big Horn County, MTMT12,7523.32−6%

29Roosevelt County, MTMT10,2423.32+10%

30Tooele County, UTUT87,4613.30+7%

31Tulare County, CACA485,1463.30−1%

32Sioux County, NDND3,6673.29−15%

33Webb County, TXTX281,2243.28−11%

34Thurston County, NENE6,7523.27−2%

35Hidalgo County, TXTX921,5493.27−8%

36Holmes County, OHOH44,9703.26−4%

37San Benito County, CACA70,0823.25+4%

38McKinley County, NMNM68,1193.25−18%

39Hamilton County, KSKS2,5003.25+43%

40Willacy County, TXTX19,9713.25−13%

41Adams County, WAWA21,4883.25+3%

42Madison County, IDID55,1723.24−7%

43Ziebach County, SDSD2,3893.23−10%

44Echols County, GAGA3,6853.23+6%

45Jefferson County, IDID35,2973.23+3%

46Manassas Park, VAVA16,5603.23+3%

47Rockland County, NYNY357,3973.22+7%

48Juab County, UTUT13,5673.22+0%

49Franklin County, WAWA102,6123.21−2%

50San Bernardino County, CACA2,224,0913.20−3%

51San Joaquin County, CACA823,8153.19+4%

52Maverick County, TXTX58,8233.19−12%

53Gaines County, TXTX23,9563.18+2%

54Davis County, UTUT381,2273.18−1%

55Kings County, CACA154,3273.17−4%

56Monterey County, CACA433,7293.16+1%

57Riverside County, CACA2,544,9163.15+1%

58Liberty County, TXTX121,3643.15+10%

59LaGrange County, ININ41,3053.14+4%

60Rolette County, NDND11,6883.13+7%

61Kern County, CACA927,0683.12−1%

62Cimarron County, OKOK2,0593.12+39%

63Reagan County, TXTX3,1663.12+8%

64Dillingham Census Area, AKAK4,4833.11−9%

65Box Elder County, UTUT65,3203.11+2%

66Edwards County, TXTX1,3703.09+32%

67Prince William County, VAVA502,9663.09+3%

68Kauai County, HIHI73,4003.09+4%

69Waller County, TXTX69,8583.09+5%

70San Juan County, UTUT14,5423.09−5%

71Stanislaus County, CACA557,7193.08+1%

72Fresno County, CACA1,035,4563.07−2%

73Lyman County, SDSD3,6943.07+20%

74Schuyler County, MOMO4,1403.06+48%

75Bailey County, TXTX6,9633.06+4%

76Cameron County, TXTX433,9463.05−11%

77Stafford County, VAVA170,8033.05+1%

78Bingham County, IDID51,1533.05−1%

79Cache County, UTUT145,0003.05−1%

80Glacier County, MTMT13,4633.04−2%

81Camas County, IDID1,3163.04+7%

82Franklin County, IDID15,8893.04−1%

83Piute County, UTUT1,5093.04+10%

84Sanpete County, UTUT31,4533.04−3%

85Apache County, AZAZ64,4453.03−16%

86Dewey County, SDSD5,4193.03−3%

87Iron County, UTUT67,1413.03+7%

88Fort Bend County, TXTX975,1913.03−5%

89Concho County, TXTX3,6073.03+17%

90Kendall County, ILIL145,4703.03+3%

91Hanson County, SDSD3,4563.02+3%

92Deaf Smith County, TXTX18,6263.02−2%

93Millard County, UTUT14,0573.02+1%

94Uintah County, UTUT38,2783.02+2%

95Loudoun County, VAVA449,7493.02−1%

96Jerome County, IDID26,3623.02+3%

97Grant County, KSKS7,0283.02+8%

98Manassas, VAVA44,3323.02−1%

99Atascosa County, TXTX53,5903.01+0%

100Castro County, TXTX7,2953.00+3%

101Frio County, TXTX18,8233.00−4%

102Duval County, TXTX9,4022.99+9%

103Nassau County, NYNY1,398,9392.99+1%

104Forsyth County, GAGA282,8052.99+1%

105Menominee County, WIWI4,1992.99+7%

106Scotland County, MOMO4,7962.98+25%

107Cibola County, NMNM26,8072.98−4%

108Texas County, OKOK20,3222.98+8%

109Parmer County, TXTX9,6782.98−2%

110Rockwall County, TXTX140,7382.98+2%

111Zapata County, TXTX13,7532.98−5%

112Osceola County, FLFL481,7182.98+8%

113Gwinnett County, GAGA1,018,0992.98+0%

114Chambers County, TXTX57,5942.97+2%

115Moore County, TXTX21,8912.97−5%

116Paulding County, GAGA190,9962.97+3%

117Blaine County, MTMT6,8602.96+9%

118Beaver County, OKOK4,8822.96+19%

119Mellette County, SDSD2,1372.96−1%

120Jackson County, GAGA99,2652.96+8%

121Union County, NCNC267,6742.95+3%

122Charles Mix County, SDSD9,3032.95+7%

123Cassia County, IDID26,3972.95+2%

124Socorro County, NMNM15,8382.94+1%

125Jones County, SDSD9132.94+29%

126Ellis County, TXTX240,8672.94+1%

127Johnson County, TXTX218,0482.94+2%

128Wise County, TXTX83,7782.94+2%

129Sutter County, CACA98,7872.94−0%

130Ventura County, CACA830,8512.94−3%

131Long County, GAGA21,5572.94+4%

132Suffolk County, NYNY1,546,0902.93+0%

133Borden County, TXTX5672.93+27%

134Columbia County, GAGA169,1892.93+4%

135Clark County, IDID7832.93+14%

136Pike County, GAGA20,9322.92+1%

137Crowley County, COCO5,6772.92−8%

138Hardee County, FLFL25,9322.91−11%

139Barrow County, GAGA99,7732.91+1%

140Seward County, KSKS21,0732.91−1%

141Lea County, NMNM74,7492.90+3%

142Jim Wells County, TXTX38,8042.90+0%

143Parker County, TXTX184,7672.90+8%

144Yuba County, CACA88,6912.90−1%

145Bryan County, GAGA52,0622.90+5%

146Charlton County, GAGA13,1212.90−8%

147Maui County, HIHI160,5922.90+0%

148Bonneville County, IDID135,7712.90+3%

149Duchesne County, UTUT20,8562.90+11%

150Colusa County, CACA21,8362.89−1%

151Yakima County, WAWA259,1852.89−2%

152Hughes County, OKOK13,4552.89+20%

153Childress County, TXTX6,6432.89+19%

154Oconee County, GAGA44,8932.89+4%

155Bear Lake County, IDID6,7272.89+22%

156Sevier County, UTUT22,8272.89+2%

157Santa Cruz County, AZAZ50,0202.88−24%

158Glenn County, CACA28,1412.88−0%

159Fremont County, IDID14,2082.88+0%

160Adams County, ININ36,6502.88+4%

161Wilson County, TXTX56,1392.88+2%

162Emery County, UTUT10,1772.88+2%

163Orange County, CACA3,149,5072.87−3%

164Lewis County, MOMO9,8792.87+14%

165Medina County, TXTX56,8812.87+1%

166Yoakum County, TXTX7,4382.87−2%

167Canyon County, IDID275,1232.87−1%

168Henry County, GAGA264,9222.87−1%

169Telfair County, GAGA11,1952.87+25%

170Lincoln County, IDID5,6032.87+6%

171Passaic County, NJNJ531,6242.86−5%

172San Juan County, NMNM120,3402.86−5%

173Benson County, NDND5,7592.86−1%

174Canadian County, OKOK187,1892.86+8%

175El Paso County, TXTX877,8582.86−9%

176Zavala County, TXTX9,0372.86−10%

177Graham County, AZAZ40,1572.86−4%

178Walton County, GAGA112,6962.86+3%

179Hall County, GAGA226,5682.86+1%

180Caribou County, IDID7,2522.86+14%

181Power County, IDID8,2462.86−1%

182Uvalde County, TXTX24,9632.86−1%

183Colfax County, NENE10,9342.85+4%

184Richmond County, NYNY501,2902.85+3%

185Bledsoe County, TNTN15,9202.85+13%

186Honolulu County, HIHI988,7032.85−4%

187Scott County, MSMS28,0732.84+0%

188Dakota County, NENE21,6872.84+2%

189Orange County, NYNY417,6692.84−0%

190Hutchinson County, TXTX19,6332.84+9%

191Oglethorpe County, GAGA16,4152.84−8%

192Owyhee County, IDID12,6612.84+1%

193Will County, ILIL712,2532.84−5%

194Oldham County, KYKY70,9862.84+2%

195Hamlin County, SDSD6,9002.83+0%

196Union County, MSMS28,4592.83+7%

197Morrow County, OROR12,6022.83−1%

198Smith County, TXTX252,5492.83+8%

199Wasatch County, UTUT38,5142.83−8%

200Weber County, UTUT278,1742.83−0%

201Hendry County, FLFL48,2762.83−10%

202Effingham County, GAGA74,3972.83−1%

203Newton County, GAGA125,5832.83−0%

204Elkhart County, ININ208,7742.83+2%

205Davis County, IAIA9,2302.83+3%

206Ford County, KSKS33,9932.83−4%

207Santa Clara County, CACA1,914,3912.82−1%

208Leake County, MSMS21,6622.82−5%

209Knox County, MOMO3,7282.82+24%

210Webster County, MOMO43,0542.82+4%

211Union County, NJNJ601,8632.82−1%

212Clark County, SDSD4,0312.82+6%

213Brazoria County, TXTX419,0802.82−1%

214Oldham County, TXTX1,7832.82+4%

215Webster County, GAGA2,3692.82+15%

216Baker County, FLFL29,7372.82−1%

217Lanier County, GAGA10,6232.82+2%

218Valley County, IDID12,8312.82+26%

219Johnson County, ILIL13,3632.82+26%

220Finney County, KSKS37,5052.82−5%

221Hardeman County, TXTX3,2922.82+11%

222Rich County, UTUT2,6872.82−1%

223Los Angeles County, CACA9,694,9342.81−5%

224Williamson County, TNTN272,0612.81+1%

225Bastrop County, TXTX118,9082.81+1%

226Dallam County, TXTX7,5082.81−6%

227Santa Barbara County, CACA442,0652.81+0%

228Banks County, GAGA21,2732.81+2%

229Douglas County, GAGA154,2932.81−1%

230Screven County, GAGA14,4082.81−7%

231Calvert County, MDMD94,4842.80−2%

232Pinal County, AZAZ539,3802.80+9%

233Mahnomen County, MNMN5,1532.80+6%

234Nobles County, MNMN22,3382.80+9%

235Logan County, OKOK55,4732.80+6%

236Lipscomb County, TXTX2,9552.80−2%

237Navarro County, TXTX57,1812.80+6%

238Sullivan County, MOMO5,7382.80+11%

239Solano County, CACA455,3762.80−2%

240Daviess County, ININ34,2092.80+0%

241Titus County, TXTX31,5632.79+0%

242Craig County, VAVA4,8002.79+10%

243Culpeper County, VAVA57,6662.79+1%

244Spotsylvania County, VAVA155,3882.79−4%

245Webster County, WVWV7,7602.79+27%

246Trinity County, CACA15,7202.79+26%

247Adams County, COCO554,6682.79−2%

248Clayton County, GAGA297,4712.79−5%

249Madison County, GAGA32,9192.79−4%

250Grant County, WAWA105,7272.79−2%

251Sevier County, ARAR15,7582.78−2%

252Contra Costa County, CACA1,170,0702.78+1%

253Cabarrus County, NCNC249,7252.78+5%

254Guadalupe County, TXTX201,1112.78−2%

255Washington County, UTUT213,6702.78−4%

256Fauquier County, VAVA76,5032.78−3%

257Valencia County, NMNM82,0132.78+3%

258Scott County, MNMN159,0172.78−3%

259Sherburne County, MNMN104,1942.78−4%

260Elbert County, COCO30,5342.78−0%

261Weld County, COCO378,4262.78+1%

262Whitfield County, GAGA106,2122.78−3%

263Charles County, MDMD176,5932.78−3%

264Matanuska-Susitna, AKAK118,6662.77−1%

265Kane County, ILIL525,7572.77−6%

266Neshoba County, MSMS28,7322.77+1%

267Daviess County, MOMO8,5582.77+9%

268Caddo County, OKOK26,1302.77+7%

269Gooding County, IDID16,4462.77+2%

270Brantley County, GAGA18,9362.77+4%

271Collin County, TXTX1,297,1792.77+1%

272Salt Lake County, UTUT1,220,9162.77−6%

273Bee County, TXTX32,5152.76+4%

274Hoke County, NCNC56,9392.76−8%

275Roberts County, SDSD10,2552.76+5%

276Macon County, TNTN27,6632.76+6%

277Mitchell County, TXTX8,9472.76+19%

278San Mateo County, CACA743,5682.76+1%

279Miami-Dade County, FLFL2,802,0292.76−4%

280Glascock County, GAGA3,1412.76+11%

281Howard County, MDMD339,1832.76+2%

282Sacramento County, CACA1,618,4602.75+2%

283Schley County, GAGA4,5932.75−2%

284Robertson County, KYKY2,3252.75+3%

285Lafayette County, MSMS59,5972.75+11%

286McDonald County, MOMO23,9922.75−4%

287Crane County, TXTX4,5542.75−1%

288Reeves County, TXTX12,1382.75−19%

289Fairfax County, VAVA1,167,8732.75+1%

290Montgomery County, TXTX781,1942.75−2%

291Spencer County, KYKY20,9982.75+2%

292Middlesex County, NJNJ883,3352.75−1%

293Rutherford County, TNTN386,3522.75+4%

294Wagoner County, OKOK93,2632.75+0%

295Yolo County, CACA224,4102.75+2%

296Bartow County, GAGA120,8002.75−2%

297Carroll County, GAGA131,0362.75+2%

298Cherokee County, GAGA299,2732.75−0%

299Pottawatomie County, KSKS27,1862.75+3%

300Beaver County, UTUT7,3012.75−6%

301Rockdale County, GAGA98,4162.74−5%

302McCurtain County, OKOK30,7442.74+12%

303Malheur County, OROR32,2612.74+2%

304Caldwell County, TXTX55,1502.74−7%

305Hunt County, TXTX123,3362.74+1%

306Dimmit County, TXTX8,0242.74+3%

307Livingston Parish, LALA155,0362.74−4%

308San Patricio County, TXTX72,0532.74−4%

309St. Charles Parish, LALA50,5862.74−2%

310Cook County, GAGA18,2322.74+6%

311Gordon County, GAGA61,7012.74−1%

312Hawaii County, HIHI210,0432.74+0%

313Payette County, IDID27,8242.74+1%

314Nicholas County, KYKY7,9492.74+7%

315McClain County, OKOK49,6472.74−1%

316Harris County, TXTX5,045,0262.73−4%

317DeKalb County, ALAL74,0852.73+3%

318LaSalle Parish, LALA15,1542.73+3%

319Dukes County, MAMA21,2192.73−7%

320Lincoln County, MOMO66,6762.73−3%

321Saline County, NENE14,9962.73+6%

322Delaware County, OHOH242,0322.73+2%

323Anderson County, TXTX59,8052.73−5%

324Hale County, TXTX31,8192.73−2%

325Tarrant County, TXTX2,248,4662.73+0%

326King George County, VAVA29,6462.73+3%

327Grant County, KYKY26,1812.73−1%

328Jefferson County, OROR25,7402.73+0%

329Harris County, GAGA37,2802.73+0%

330Minidoka County, IDID22,9112.73−5%

331Harnett County, NCNC150,1372.73+2%

332Val Verde County, TXTX47,8352.73−14%

333Van Zandt County, TXTX66,1302.73+5%

334Douglas County, WAWA46,4732.73+2%

335Polk County, GAGA45,5142.72−2%

336Bath County, KYKY13,1762.72+4%

337Boone County, KYKY145,3162.72−1%

338San Diego County, CACA3,282,2482.72−1%

339Ascension Parish, LALA135,1052.72−5%

340Wright County, MNMN157,5592.72+1%

341Stone County, MSMS19,6542.72+9%

342Keya Paha County, NENE7922.72+27%

343Luna County, NMNM25,4072.72+0%

344Queens County, NYNY2,358,1822.72−3%

345Camden County, NCNC11,3152.72−4%

346Johnston County, NCNC256,4482.72+1%

347Hansford County, TXTX4,9442.72−2%

348St. Bernard Parish, LALA45,6422.72+1%

349Orange County, FLFL1,528,0022.72+1%

350Fayette County, GAGA125,1562.72−2%

351Boone County, ILIL53,5682.72−9%

352Meade County, KYKY30,6992.72−6%

353Montgomery County, MDMD1,074,5822.72+2%

354Pershing County, NVNV6,4212.72+14%

355Summit County, UTUT43,1412.72+5%

356Marshall County, ALAL103,5372.71+3%

357Madison Parish, LALA8,8442.71+3%

358West Feliciana Parish, LALA15,1342.71+8%

359Nantucket County, MAMA14,7582.71+5%

360Ionia County, MIMI66,5572.71+3%

361Elko County, NVNV54,8152.71−1%

362Grimes County, TXTX34,2522.71+0%

363Lynn County, TXTX6,0172.71−2%

364Crawford County, GAGA12,2062.71−1%

365Habersham County, GAGA50,4162.71+8%

366Heard County, GAGA12,1492.71−0%

367Clark County, MOMO6,4752.70+7%

368Alameda County, CACA1,636,6302.70−1%

369Broadwater County, MTMT8,4932.70−2%

370Bexar County, TXTX2,160,0882.70−3%

371Callahan County, TXTX14,4912.70+3%

372Kendall County, TXTX53,2892.70+5%

373Lamb County, TXTX12,5792.70−7%

374Madison County, TXTX14,2262.70−5%

375Upshur County, TXTX44,4102.70+6%

376Prince George County, VAVA43,9362.70−5%

377Coweta County, GAGA160,2402.70−1%

378Jeff Davis County, GAGA15,2192.70+5%

379Liberty County, GAGA70,3132.70−2%

380Monroe County, GAGA32,0232.70+0%

381Wyandotte County, KSKS170,5972.70+0%

382Todd County, KYKY12,9722.70+2%

383Frederick County, MDMD302,8832.70+1%

384Prince George's County, MDMD970,3742.70−2%

385Franklin County, TXTX10,9942.70−5%

386Benton County, WAWA221,7222.70+1%

387Marion County, ALAL29,0972.69+15%

388Benton County, ARAR332,5542.69+2%

389Tipton County, TNTN62,2872.69−2%

390Butts County, GAGA27,2182.69−1%

391Plaquemines Parish, LALA22,2562.69−5%

392Jefferson County, MSMS6,8252.69+4%

393Lander County, NVNV5,8722.69−3%

394Hidalgo County, NMNM3,9292.69−8%

395Grady County, OKOK59,1282.69+3%

396Murray County, OKOK13,8052.69+8%

397Monroe County, PAPA167,1792.69−2%

398Andrews County, TXTX18,9142.69−0%

399Fannin County, TXTX39,2652.69−1%

400Douglas County, COCO399,3962.69−3%

401Clay County, FLFL239,5932.69−1%

402Suwannee County, FLFL48,1492.69+1%

403Colquitt County, GAGA47,4382.69−4%

404Lumpkin County, GAGA36,1782.69+8%

405Lake County, ILIL719,3392.69−5%

406Butler County, KYKY12,5202.68+10%

407DeSoto County, MSMS197,9182.68−3%

408Saline County, MOMO23,2652.68+11%

409Clark County, NVNV2,407,2262.68−0%

410Bergen County, NJNJ977,0262.68+1%

411Cumberland County, NJNJ157,1482.68−6%

412Putnam County, NYNY99,0282.68−1%

413Sampson County, NCNC61,5042.68+2%

414Morgan County, TNTN22,1602.68+9%

415Cherokee County, TXTX53,3372.68−5%

416Denton County, TXTX1,069,3462.68−2%

417Lampasas County, TXTX23,6572.68+0%

418Sherman County, TXTX2,7812.68−13%

419Fairfax, VAVA26,7722.68+6%

420Sandoval County, NMNM159,5652.68−3%

421Polk County, FLFL874,7902.68+4%

422Wilcox County, GAGA8,7972.68−2%

423Lyon County, IAIA12,3542.68+5%

424Stevens County, KSKS4,9842.68+4%

425Bibb County, ALAL22,2622.67−12%

426Lamar County, ALAL13,5872.67+10%

427Chariton County, MOMO7,3772.67+12%

428Bradley County, ARAR9,8282.67+19%

429Santa Rosa County, FLFL211,1152.67+2%

430Anoka County, MNMN381,6052.67−1%

431Warren County, MOMO39,0162.67+4%

432Chouteau County, MTMT5,8652.67+3%

433Gloucester County, NJNJ312,6382.67−2%

434Otero County, NMNM70,3682.67+4%

435Kingfisher County, OKOK15,7952.67+0%

436Monroe County, WVWV12,4912.67+11%

437Clark County, WIWI35,0522.67+2%

438St. John the Baptist Parish, LALA39,8752.67−8%

439Sequatchie County, TNTN17,8612.67−1%

440Powhatan County, VAVA32,5912.67+9%

441Union County, OHOH73,4462.67−0%

442Greater Bridgeport Planning Region, CTCT337,6972.67–

443Sioux County, IAIA36,7742.67−2%

444Jessamine County, KYKY57,1472.67+3%

445Escambia County, ALAL36,6652.66+6%

446Calhoun County, ARAR4,6322.66+2%

447Madison County, ARAR18,4102.66−0%

448Montcalm County, MIMI69,4062.66−1%

449Copiah County, MSMS27,4972.66−4%

450Lawrence County, MSMS11,8192.66+3%

451Madison County, MOMO12,8582.66+5%

452Churchill County, NVNV25,8512.66−5%

453Warren County, OHOH257,1812.66−2%

454Adair County, OKOK19,8282.66−5%

455Marion County, OROR355,7772.66+0%

456Hill County, TXTX39,5032.66+3%

457Hopkins County, TXTX39,0632.66+2%

458Winkler County, TXTX7,5402.66−2%

459Chesterfield County, VAVA397,1482.66−2%

460Blount County, ALAL60,1562.66−3%

461Newton County, MOMO62,2632.66+1%

462Hendricks County, ININ193,5102.66−1%

463Wilson County, TNTN175,0332.66+1%

464Poquoson, VAVA13,2922.66−0%

465Lee County, GAGA34,1792.66−5%

466Twiggs County, GAGA7,5972.66−12%

467Gem County, IDID21,7732.66+4%

468Kearny County, KSKS3,8882.66−4%

469Pendleton County, KYKY14,8002.66−2%

470Carroll County, MDMD176,6772.66−3%

471Floyd County, TXTX4,8812.66+6%

472Franklin County, ALAL32,4492.65+6%

473Pontotoc County, MSMS32,0962.65−7%

474Ripley County, MOMO10,7172.65+6%

475Sarpy County, NENE208,3032.65−1%

476Guadalupe County, NMNM4,3432.65+6%

477Fairfield County, OHOH169,7522.65+1%

478Cotton County, OKOK5,4322.65+6%

479Polk County, OROR90,0372.65+3%

480Umatilla County, OROR81,1192.65+1%

481Bell County, TXTX402,2482.65−5%

482Rusk County, TXTX54,8542.65+2%

483Warren County, VAVA42,7402.65+3%

484Chesapeake, VAVA255,3322.65−3%

485Hampshire County, WVWV24,1052.65+12%

486Twin Falls County, IDID97,5392.65−1%

487Williamson County, TXTX752,8272.65−3%

488Uinta County, WYWY20,7282.65−5%

489Carver County, MNMN114,3792.65−3%

490Robertson County, TNTN80,1752.65−1%

491Ocean County, NJNJ673,7462.65+5%

492Jasper County, GAGA17,6322.65−3%

493Teton County, IDID13,2542.65+7%

494Gallatin County, KYKY8,8402.65−4%

495Powell County, KYKY12,8122.65+0%

496Caroline County, MDMD34,1162.65−3%

497St. Mary's County, MDMD116,6922.65−3%

498Limestone County, ALAL122,9282.64+5%

499Navajo County, AZAZ109,9462.64−11%

500Bullitt County, KYKY86,4542.64−0%

SHOWING 1–500 OF 3,144

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Download CSV (full list, 3,144 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES

Frequently asked

Which county has the highest average household size?

Oglala Lakota County, South Dakota ranks #1 with 4.46 (2024 American Community Survey).

What are the top 5 counties by average household size?

Oglala Lakota County, South Dakota, Kusilvak Census Area, Alaska, Northwest Arctic, Alaska, Wheeler County, Georgia, Jim Hogg County, Texas.

How many counties are in this ranking?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.

How is average household size measured?

Average number of people per household. Source: US Census Bureau, American Community Survey 5-year estimates (2024).