Which county has the highest average household size?

Oglala Lakota County, South Dakota ranks #1 with 4.97 (2020 American Community Survey).

What are the top 5 counties by average household size?

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

How many counties are in this ranking?

3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 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 (2020).

RANKING · 2020 CENSUS · 500 SHOWN OF 3,135

Largest households, US counties · 2020

US counties ranked by average household size (2023 ACS).

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

501McDonald County, MOMO23,9922.70–

502Ripley County, MOMO10,7172.70–

503Gloucester County, NJNJ312,6382.70–

504Perry County, OHOH35,9182.70–

505Polk County, OROR90,0372.70–

506Dillon County, SCSC27,4582.70–

507Montgomery County, TNTN249,9352.70–

508Coryell County, TXTX85,5922.70–

509Frederick County, VAVA99,9552.70–

510Blount County, ALAL60,1562.70–

511Gooding County, IDID16,4462.70–

512Limestone County, TXTX22,8492.70–

513Burnet County, TXTX57,0152.70–

514Wilson County, TNTN175,0332.70–

515Pickaway County, OHOH62,9782.70–

516Wagoner County, OKOK93,2632.70–

517Montgomery County, GAGA8,6352.70–

518McHenry County, ILIL317,7512.70–

519Starke County, ININ23,4252.70–

520Lee County, NCNC70,2582.70–

521Franklin County, TXTX10,9942.70–

522Van Zandt County, TXTX66,1302.70–

523Wharton County, TXTX42,0602.70–

524Pike County, ALAL33,6882.69–

525Bullitt County, KYKY86,4542.69–

526St. Tammany Parish, LALA279,1082.69–

527Nobles County, MNMN22,3382.69–

528Yazoo County, MSMS22,9472.69–

529Bergen County, NJNJ977,0262.69–

530Cumberland County, NJNJ157,1482.69–

531Onslow County, NCNC217,1752.69–

532Dickson County, TNTN58,6622.69–

533Mills County, TXTX4,5802.69–

534Hardin County, TXTX58,7232.69–

535Grant County, KYKY26,1812.69–

536Crosby County, TXTX4,8522.69–

537Appling County, GAGA19,1002.69–

538Grady County, GAGA26,5902.69–

539Blaine County, IDID25,5172.69–

540Caroline County, MDMD34,1162.69–

541Carroll County, MDMD176,6772.69–

542Freestone County, TXTX20,8112.69–

543DeWitt County, TXTX20,3092.68–

544St. Lucie County, FLFL402,4492.68–

545St. Landry Parish, LALA80,7652.68–

546Tangipahoa Parish, LALA141,3462.68–

547Vernon Parish, LALA45,0912.68–

548Jones County, MSMS66,4962.68–

549Smith County, MSMS13,9912.68–

550Howard County, MOMO10,1802.68–

551Sampson County, NCNC61,5042.68–

552Fairfield County, OHOH169,7522.68–

553Creek County, OKOK74,9672.68–

554Lyman County, SDSD3,6942.68–

555Lawrence County, TNTN46,9142.68–

556Perry County, TNTN9,1262.68–

557Anderson County, TXTX59,8052.68–

558Angelina County, TXTX88,1542.68–

559Cochran County, TXTX2,5462.68–

560Hill County, TXTX39,5032.68–

561Hopkins County, TXTX39,0632.68–

562Dinwiddie County, VAVA28,8962.68–

563Twin Falls County, IDID97,5392.68–

564Beauregard Parish, LALA36,6732.68–

565Robertson County, TNTN80,1752.68–

566Jefferson County, GAGA15,0112.68–

567Wilkinson County, GAGA8,6502.68–

568Pottawatomie County, KSKS27,1862.68–

569McClain County, OKOK49,6472.68–

570Emery County, UTUT10,1772.68–

571Clark County, WAWA532,1192.68–

572Snohomish County, WAWA870,6562.68–

573DeKalb County, ALAL74,0852.67–

574Pierce County, GAGA20,7642.67–

575Christian County, MOMO96,7252.67–

576Calaveras County, CACA46,6052.67–

577Jefferson Davis Parish, LALA31,4712.67–

578Ottawa County, MIMI308,4592.67–

579Washington County, MNMN286,8952.67–

580Lafayette County, MSMS59,5972.67–

581Essex County, NJNJ896,3792.67–

582Mercer County, NJNJ399,2892.67–

583Doña Ana County, NMNM229,0912.67–

584Morrow County, OHOH36,3052.67–

585Warren County, OHOH257,1812.67–

586Sequoyah County, OKOK40,8422.67–

587Malheur County, OROR32,2612.67–

588Yamhill County, OROR110,0242.67–

589Marshall County, TNTN38,0712.67–

590Grimes County, TXTX34,2522.67–

591Lampasas County, TXTX23,6572.67–

592McLennan County, TXTX272,0202.67–

593Randall County, TXTX152,3512.67–

594Refugio County, TXTX6,6572.67–

595Upton County, TXTX3,1312.67–

596Hanover County, VAVA116,4232.67–

597New Kent County, VAVA28,0222.67–

598Warren County, VAVA42,7402.67–

599Sullivan County, MOMO5,7382.67–

600Hickman County, TNTN26,2192.67–

601Vermilion Parish, LALA57,6712.67–

602Coffee County, GAGA44,4072.67–

603Lanier County, GAGA10,6232.67–

604Hamilton County, ININ387,0362.67–

605Mills County, IAIA14,7932.67–

606Allen County, KYKY22,5362.67–

607Grayson County, KYKY27,4062.67–

608St. Mary's County, MDMD116,6922.67–

609Westchester County, NYNY1,015,7432.67–

610Yates County, NYNY24,5472.67–

611Grundy County, TNTN14,1162.67–

612Conecuh County, ALAL10,8992.66–

613Tuscaloosa County, ALAL241,3682.66–

614Anchorage, AKAK287,1552.66–

615Petersburg, AKAK3,3942.66–

616Faulkner County, ARAR133,9792.66–

617Lonoke County, ARAR76,6642.66–

618Placer County, CACA442,0812.66–

619Wayne County, GAGA32,4812.66–

620Plaquemines Parish, LALA22,2562.66–

621Plymouth County, MAMA546,8292.66–

622Dodge County, MNMN21,3762.66–

623Mercer County, MOMO3,4042.66–

624Moniteau County, MOMO15,4282.66–

625Eddy County, NMNM62,5092.66–

626Cleveland County, NCNC103,3252.66–

627Pender County, NCNC72,1112.66–

628Le Flore County, OKOK50,1962.66–

629Pottawatomie County, OKOK75,1022.66–

630Chester County, TNTN17,9942.66–

631Humphreys County, TNTN19,6462.66–

632Maury County, TNTN118,1312.66–

633Grayson County, TXTX153,6132.66–

634Newton County, TXTX11,9542.66–

635Nolan County, TXTX14,1172.66–

636Wayne County, UTUT2,5872.66–

637Licking County, OHOH185,5642.66–

638Lincoln County, WYWY21,1802.66–

639Johnson County, ININ174,2622.66–

640Arapahoe County, COCO673,8202.66–

641Franklin County, GAGA25,9482.66–

642Lumpkin County, GAGA36,1782.66–

643Frederick County, MDMD302,8832.66–

644St. Clair County, ALAL98,2062.65–

645Prince of Wales-Hyder Census Area, AKAK5,7772.65–

646Chariton County, MOMO7,3772.65–

647Pope County, ARAR64,9762.65–

648Hillsborough County, FLFL1,574,1152.65–

649Richmond County, GAGA206,5592.65–

650Concordia Parish, LALA17,8362.65–

651Chisago County, MNMN59,1422.65–

652Lee County, MSMS83,7312.65–

653Warren County, MOMO39,0162.65–

654Luna County, NMNM25,4072.65–

655Garvin County, OKOK26,3772.65–

656Lincoln County, OKOK35,2782.65–

657Edgefield County, SCSC29,8082.65–

658Brooks County, TXTX6,5792.65–

659Cherokee County, TXTX53,3372.65–

660Lynn County, TXTX6,0172.65–

661Mitchell County, TXTX8,9472.65–

662Tyler County, TXTX20,4432.65–

663King William County, VAVA19,6172.65–

664Jefferson County, WVWV63,1022.65–

665Campbell County, WYWY48,1452.65–

666DuPage County, ILIL934,2982.65–

667Sequatchie County, TNTN17,8612.65–

668Jefferson County, MTMT13,3292.65–

669Saline County, ARAR133,2882.65–

670St. James Parish, LALA18,9382.65–

671Lancaster County, SCSC114,2962.65–

672Hale County, ALAL15,1942.65–

673Camden County, GAGA60,1432.65–

674Catoosa County, GAGA69,6282.65–

675Crawford County, GAGA12,2062.65–

676Houston County, GAGA178,2142.65–

677Irwin County, GAGA9,0202.65–

678Morgan County, GAGA22,0952.65–

679Butte County, IDID2,7832.65–

680West Baton Rouge Parish, LALA28,7562.65–

681Harford County, MDMD266,4462.65–

682Chaves County, NMNM63,3642.65–

683Galveston County, TXTX372,2072.65–

684Perry County, ALAL7,4252.64–

685Hamlin County, SDSD6,9002.64–

686Santa Rosa County, FLFL211,1152.64–

687Iberville Parish, LALA29,5792.64–

688Allegan County, MIMI123,1882.64–

689Ionia County, MIMI66,5572.64–

690Covington County, MSMS17,8982.64–

691Shannon County, MOMO7,2852.64–

692Oliver County, NDND1,8982.64–

693Caddo County, OKOK26,1302.64–

694Washington County, OROR611,7082.64–

695Calhoun County, TXTX19,5992.64–

696Goliad County, TXTX7,2082.64–

697Presidio County, TXTX5,4332.64–

698Real County, TXTX2,7452.64–

699Shelby County, TXTX24,2862.64–

700Clark County, WIWI35,0522.64–

701Shelby County, ALAL238,5522.64–

702Clay County, MOMO265,0322.64–

703Union County, OHOH73,4462.64–

704Dawson County, GAGA35,3652.64–

705Twiggs County, GAGA7,5972.64–

706Sioux County, IAIA36,7742.64–

707Radford, VAVA17,2432.64–

708Pierce County, WAWA946,2882.64–

709Hoonah-Angoon Census Area, AKAK2,2712.63–

710Kenai Peninsula, AKAK61,9512.63–

711Yukon-Koyukuk Census Area, AKAK5,0282.63–

712Hempstead County, ARAR19,0802.63–

713East Baton Rouge Parish, LALA456,1802.63–

714Holmes County, MSMS15,4652.63–

715Jackson County, MSMS147,6662.63–

716Pike County, MSMS38,7122.63–

717Guadalupe County, NMNM4,3432.63–

718Adams County, OHOH27,8652.63–

719Beaver County, OKOK4,8822.63–

720Bryan County, OKOK51,3672.63–

721Okfuskee County, OKOK11,4512.63–

722Roger Mills County, OKOK3,2592.63–

723Armstrong County, TXTX1,8432.63–

724Orange County, TXTX86,2662.63–

725Panola County, TXTX23,0182.63–

726Stephens County, TXTX9,3802.63–

727Butler County, OHOH400,1282.63–

728Crook County, WYWY7,8522.63–

729Liberty County, MTMT1,9572.63–

730Cobb County, GAGA793,3452.63–

731Chester County, PAPA557,1162.63–

732Laurel County, KYKY63,7462.63–

733Morris County, NJNJ524,2512.63–

734El Paso County, COCO757,0402.63–

735Okeechobee County, FLFL42,6082.63–

736Echols County, GAGA3,6852.63–

737Jasper County, GAGA17,6322.63–

738Lamar County, GAGA20,9412.63–

739Meade County, KYKY30,6992.63–

740Floyd County, TXTX4,8812.63–

741Suffolk, VAVA104,6992.63–

742Etowah County, ALAL103,8862.62–

743Houston County, ALAL110,3182.62–

744Johnson County, ARAR26,2252.62–

745Allen Parish, LALA22,6722.62–

746Lafourche Parish, LALA95,5052.62–

747Natchitoches Parish, LALA36,0892.62–

748Kent County, MIMI675,2322.62–

749Itawamba County, MSMS24,1522.62–

750Rankin County, MSMS162,1812.62–

751Jefferson County, MOMO233,1322.62–

752Morgan County, MOMO22,4182.62–

753St. Charles County, MOMO426,4992.62–

754Saline County, MOMO23,2652.62–

755Camden County, NJNJ535,7992.62–

756Schenectady County, NYNY162,5812.62–

757Geauga County, OHOH95,6762.62–

758Cheatham County, TNTN42,7782.62–

759Matagorda County, TXTX36,4632.62–

760York County, VAVA71,3742.62–

761Columbia County, FLFL74,0942.62–

762Big Horn County, WYWY12,0242.62–

763Fremont County, WYWY39,4642.62–

764Greene County, VAVA21,9582.62–

765Candler County, GAGA11,2752.62–

766Decatur County, GAGA29,4322.62–

767DeKalb County, GAGA774,3942.62–

768Lowndes County, GAGA122,8672.62–

769Treutlen County, GAGA6,4662.62–

770Wilcox County, GAGA8,7972.62–

771Boundary County, IDID13,9972.62–

772Owyhee County, IDID12,6612.62–

773Pulaski County, ILIL4,8202.62–

774Owsley County, KYKY3,9322.62–

775Anne Arundel County, MDMD603,3802.62–

776Kings County, NYNY2,653,9632.61–

777Wake County, NCNC1,257,2352.61–

778Escambia County, ALAL36,6652.61–

779Lawrence County, ALAL33,8432.61–

780Wilcox County, ALAL9,6662.61–

781Franklin County, ARAR17,7252.61–

782Iberia Parish, LALA66,8462.61–

783Isanti County, MNMN44,3862.61–

784Attala County, MSMS17,1002.61–

785Prentiss County, MSMS25,2842.61–

786Webster County, MSMS10,1672.61–

787Camden County, MOMO44,0472.61–

788Murray County, OKOK13,8052.61–

789Lancaster County, PAPA563,1592.61–

790York County, SCSC306,8872.61–

791Jefferson County, TNTN60,0242.61–

792White County, TNTN29,6122.61–

793Karnes County, TXTX15,0182.61–

794Tom Green County, TXTX120,6022.61–

795Kane County, UTUT8,5972.61–

796Wayne County, WVWV37,3092.61–

797Union County, TNTN21,4502.61–

798Burleson County, TXTX20,5492.61–

799Pickens County, GAGA37,1672.61–

800Queen Anne's County, MDMD54,4482.61–

801Summit County, COCO31,5172.61–

802Crisp County, GAGA19,2372.61–

803Emanuel County, GAGA23,1472.61–

804Floyd County, ININ82,1532.61–

805Marshall County, ININ46,5992.61–

806Morgan County, ININ74,9672.61–

807Nicholas County, KYKY7,9492.61–

808Todd County, KYKY12,9722.61–

809Fairbanks North Star, AKAK93,9722.60–

810Coconino County, AZAZ144,3682.60–

811Crawford County, ARAR62,6572.60–

812Rhea County, TNTN34,8442.60–

813Park County, COCO18,3142.60–

814Jones County, GAGA29,1712.60–

815Butler County, KYKY12,5202.60–

816Ouachita Parish, LALA158,5422.60–

817Wicomico County, MDMD106,8992.60–

818Monroe County, MSMS33,3182.60–

819Curry County, NMNM46,6552.60–

820Granville County, NCNC61,4212.60–

821Iredell County, NCNC211,7982.60–

822Vance County, NCNC42,6382.60–

823Madison County, OHOH46,9852.60–

824Columbia County, OROR54,0912.60–

825Linn County, OROR132,8432.60–

826Berks County, PAPA440,0722.60–

827Hampton County, SCSC18,1742.60–

828Roberts County, SDSD10,2552.60–

829Macon County, TNTN27,6632.60–

830Warren County, TNTN43,7172.60–

831Gray County, TXTX20,9192.60–

832Swisher County, TXTX6,7032.60–

833Wood County, TXTX49,6882.60–

834Rappahannock County, VAVA7,4392.60–

835Putnam County, WVWV56,8852.60–

836Livingston County, MIMI197,3152.60–

837Poquoson, VAVA13,2922.60–

838Morgan County, COCO30,3062.60–

839Seminole County, FLFL491,8842.60–

840Clinch County, GAGA6,8472.60–

841Glascock County, GAGA3,1412.60–

842Alexander County, ILIL4,5702.60–

843Clinton County, ININ33,3222.60–

844Buchanan County, IAIA20,8832.60–

845Montgomery County, KYKY28,8222.60–

846Muhlenberg County, KYKY30,6342.60–

847Roosevelt County, NMNM18,6152.60–

848Juniata County, PAPA23,4032.60–

849Coffee County, ALAL56,9532.59–

850Cullman County, ALAL94,0092.59–

851Lee County, ALAL189,8812.59–

852Carter County, MOMO5,4182.59–

853Miller County, ARAR42,3572.59–

854White County, ARAR80,0852.59–

855Butte County, CACA209,2112.59–

856Bracken County, KYKY8,5112.59–

857Dallas County, MOMO18,0252.59–

858Polk County, TXTX53,4342.59–

859Butts County, GAGA27,2182.59–

860Bartholomew County, ININ85,7292.59–

861Henry County, KYKY16,4472.59–

862Essex County, MAMA826,6532.59–

863Clinton County, MIMI80,4322.59–

864Jefferson County, MSMS6,8252.59–

865Newton County, MSMS20,9602.59–

866Wright County, MOMO19,6712.59–

867Dawson County, NENE24,4522.59–

868Davie County, NCNC45,8552.59–

869Comanche County, OKOK122,1582.59–

870Marshall County, OKOK16,2552.59–

871Pawnee County, OKOK16,0292.59–

872Clackamas County, OROR426,2802.59–

873Delaware County, PAPA580,9372.59–

874Bamberg County, SCSC12,7962.59–

875Lake County, SDSD10,9932.59–

876Runnels County, TXTX9,6932.59–

877Stonewall County, TXTX1,1862.59–

878Taylor County, TXTX150,0772.59–

879Fairfax, VAVA26,7722.59–

880Kleberg County, TXTX30,3152.59–

881Newton County, MOMO62,2632.59–

882Kershaw County, SCSC73,1662.59–

883Ocean County, NJNJ673,7462.59–

884Kent County, DEDE194,7862.59–

885New Castle County, DEDE588,0262.59–

886Manatee County, FLFL468,2002.59–

887Wakulla County, FLFL38,0892.59–

888Floyd County, GAGA101,3782.59–

889Monroe County, GAGA32,0232.59–

890Bannock County, IDID91,5912.59–

891Clark County, IDID7832.59–

892Payette County, IDID27,8242.59–

893DeKalb County, ILIL101,8352.59–

894Kankakee County, ILIL105,5252.59–

895Parke County, ININ16,6422.59–

896St. Helena Parish, LALA10,7582.59–

897Pontotoc County, OKOK38,5282.59–

898Hamblen County, TNTN68,8432.59–

899Elmore County, ALAL91,5772.58–

900Mobile County, ALAL411,6582.58–

901Monroe County, ALAL18,9652.58–

902Columbia County, ARAR21,8942.58–

903Shelby County, TNTN910,2262.58–

904El Dorado County, CACA192,3232.58–

905Gilmer County, WVWV7,0852.58–

906Breckinridge County, KYKY21,5032.58–

907Evangeline Parish, LALA31,9802.58–

908Lafayette Parish, LALA257,9492.58–

909Union Parish, LALA20,5612.58–

910Dakota County, MNMN457,7102.58–

911Benton County, MSMS7,5022.58–

912Noxubee County, MSMS9,7982.58–

913Perry County, MSMS11,5772.58–

914Ray County, MOMO23,3982.58–

915Burlington County, NJNJ481,4392.58–

916Franklin County, NCNC82,0372.58–

917Shelby County, OHOH48,0652.58–

918Rogers County, OKOK102,1972.58–

919Stephens County, OKOK44,3102.58–

920Spartanburg County, SCSC380,8572.58–

921McNairy County, TNTN26,2362.58–

922Brazos County, TXTX249,0882.58–

923Callahan County, TXTX14,4912.58–

924Fannin County, TXTX39,2652.58–

925Gregg County, TXTX126,0952.58–

926Orange County, VAVA40,0832.58–

927Caroline County, VAVA34,4132.58–

928Uinta County, WYWY20,7282.58–

929Scott County, KYKY62,2622.58–

930Monmouth County, NJNJ651,0352.58–

931Powhatan County, VAVA32,5912.58–

932Sonoma County, CACA486,4442.58–

933Lee County, FLFL875,6072.58–

934Palm Beach County, FLFL1,575,7262.58–

935Tift County, GAGA42,2542.58–

936Walker County, GAGA70,2502.58–

937Gem County, IDID21,7732.58–

938Noble County, ININ47,9372.58–

939Mason County, KYKY16,9362.58–

940Menifee County, KYKY6,4302.58–

941Ohio County, KYKY23,9342.58–

942Coosa County, ALAL10,1612.57–

943Randolph County, ALAL23,1632.57–

944Ashley County, ARAR17,8312.57–

945Cass County, MOMO115,8592.57–

946Newton County, ARAR7,0262.57–

947Stewart County, TNTN14,4392.57–

948Clark County, ININ130,4512.57–

949Rapides Parish, LALA125,8772.57–

950Adams County, MSMS30,0612.57–

951Madison County, MSMS116,2982.57–

952Sunflower County, MSMS22,8932.57–

953Polk County, MOMO33,6042.57–

954Hall County, NENE63,6332.57–

955Quay County, NMNM8,4542.57–

956Gaston County, NCNC246,5582.57–

957Clermont County, OHOH216,9772.57–

958Gallia County, OHOH29,0722.57–

959Carter County, OKOK48,9102.57–

960McCurtain County, OKOK30,7442.57–

961Woods County, OKOK8,4432.57–

962Bucks County, PAPA647,8282.57–

963Snyder County, PAPA39,6552.57–

964Franklin County, VTVT51,1772.57–

965Fluvanna County, VAVA28,9752.57–

966Goochland County, VAVA29,1872.57–

967Sussex County, NJNJ148,0632.57–

968Smith County, TNTN20,9812.57–

969Tehama County, CACA64,6652.57–

970Berrien County, GAGA18,9322.57–

971Ada County, IDID546,1412.57–

972Benewah County, IDID10,5082.57–

973Oneida County, IDID5,0852.57–

974Jasper County, ININ33,8942.57–

975Crawford County, IAIA16,2372.57–

976Butler County, KSKS69,4842.57–

977Adair County, KYKY19,4232.57–

978Anderson County, KYKY25,2252.57–

979Garrard County, KYKY18,2072.57–

980Hancock County, KYKY9,0502.57–

981Ketchikan Gateway, AKAK13,5492.56–

982Grant County, ARAR18,7562.56–

983Stone County, ARAR12,7032.56–

984Washington County, ARAR271,2132.56–

985Baldwin County, ALAL267,7612.56–

986West Carroll Parish, LALA9,1562.56–

987Norfolk County, MAMA739,7492.56–

988Isabella County, MIMI64,6912.56–

989Stearns County, MNMN164,1102.56–

990Andrew County, MOMO18,2412.56–

991Pettis County, MOMO44,2542.56–

992Platte County, MOMO114,4002.56–

993Washington County, MOMO23,8102.56–

994Cass County, NENE27,6572.56–

995Atlantic County, NJNJ278,6572.56–

996Torrance County, NMNM16,1002.56–

997Greene County, NCNC20,7002.56–

998Seminole County, OKOK23,4412.56–

999Florence County, SCSC138,5042.56–

1000Austin County, TXTX33,6252.56–

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES