Which county has the highest population density?

New York County, New York ranks #1 with 65,652 (1990 Decennial Census).

What are the top 5 counties by population density?

New York County, New York, Kings County, New York, Bronx County, New York, Queens County, New York, San Francisco County, California.

How many counties are in this ranking?

3,122 counties qualify after filtering for population minimums and data availability. The ranking covers 1990 Decennial Census data.

How is population density measured?

Residents per square mile of land area. Source: US Census Bureau, 1990 Decennial Census.

RANKING · 1990 CENSUS · 500 SHOWN OF 3,122

Most densely populated, US counties · 1990

US counties ranked by residents per square mile (1990).

Flip the list · Most sparsely populated, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS –

2501Iron County, MIMI11,75711–

2502Sawyer County, WIWI18,84611–

2503Forest County, PAPA6,61411–

2504Parmer County, TXTX9,67811–

2505Coal County, OKOK5,43611–

2506Kiowa County, OKOK8,18111–

2507Jefferson County, WAWA33,97011–

2508McKinley County, NMNM68,11911–

2509Scotland County, MOMO4,79611–

2510Yoakum County, TXTX7,43811–

2511Montrose County, COCO44,59111–

2512Charlton County, GAGA13,12111–

2513Menominee County, WIWI4,19911–

2514Carter County, MOMO5,41811–

2515Kalawao County, HIHI8211–

2516Walsh County, NDND10,17911–

2517Webster County, GAGA2,36911–

2518Cass County, MNMN31,43011–

2519Runnels County, TXTX9,69311–

2520Ramsey County, NDND11,53011–

2521Howard County, NENE6,53811–

2522Fairbanks North Star, AKAK93,97211–

2523Baker County, GAGA2,72511–

2524Cotton County, OKOK5,43211–

2525Taos County, NMNM34,56410–

2526Red Lake County, MNMN3,94010–

2527Ravalli County, MTMT48,58210–

2528Mackinac County, MIMI11,23610–

2529Refugio County, TXTX6,65710–

2530Lafayette County, FLFL8,79210–

2531Mitchell County, KSKS5,59010–

2532Greer County, OKOK5,37310–

2533Winkler County, TXTX7,54010–

2534Sanpete County, UTUT31,45310–

2535Benewah County, IDID10,50810–

2536Williams County, NDND41,76710–

2537Garfield County, COCO63,47410–

2538Hutchinson County, SDSD7,41310–

2539Traill County, NDND7,92010–

2540Castro County, TXTX7,29510–

2541Ringgold County, IAIA4,64210–

2542Nuckolls County, NENE4,10010–

2543Stephens County, TXTX9,38010–

2544Montgomery County, ARAR8,57910–

2545Pawnee County, KSKS5,99110–

2546Stutsman County, NDND21,41410–

2547Wilkin County, MNMN6,28810–

2548Lyon County, NVNV65,08810–

2549Ochiltree County, TXTX9,28410–

2550McCook County, SDSD5,96410–

2551Juneau, AKAK31,60910–

2552Mariposa County, CACA16,91810–

2553Tyrrell County, NCNC3,53710–

2554Taliaferro County, GAGA1,66210–

2555Putnam County, MOMO4,54610–

2556Hamlin County, SDSD6,90010–

2557Alger County, MIMI8,64110–

2558Sullivan County, MOMO5,73810–

2559Boone County, NENE5,35510–

2560Klamath County, OROR70,27410–

2561Nance County, NENE3,29010–

2562Essex County, VTVT6,05110–

2563Kingman County, KSKS7,02910–

2564Pocahontas County, WVWV7,60210–

2565Storey County, NVNV4,26010–

2566Logan County, COCO20,65410–

2567Andrews County, TXTX18,91410–

2568Chaves County, NMNM63,36410–

2569Bayfield County, WIWI16,7879–

2570Glades County, FLFL13,2709–

2571Mercer County, NDND8,4419–

2572Florence County, WIWI4,7489–

2573Gaines County, TXTX23,9569–

2574Zavala County, TXTX9,0379–

2575Sheridan County, WYWY33,2419–

2576Newton County, ARAR7,0269–

2577Zapata County, TXTX13,7539–

2578Antelope County, NENE6,3529–

2579Calhoun County, ARAR4,6329–

2580Hamilton County, TXTX8,6809–

2581Jefferson County, OKOK5,4319–

2582Clay County, TXTX10,7649–

2583Ellsworth County, KSKS6,2579–

2584Montezuma County, COCO26,6789–

2585Live Oak County, TXTX11,9299–

2586Worth County, MOMO1,9149–

2587Norman County, MNMN6,3369–

2588Swisher County, TXTX6,7039–

2589Wasco County, OROR26,3109–

2590Valley County, NENE4,0949–

2591Morgan County, UTUT13,3839–

2592Bath County, VAVA4,0769–

2593Mahnomen County, MNMN5,1539–

2594Republic County, KSKS4,6409–

2595Roberts County, SDSD10,2559–

2596Roseau County, MNMN15,2469–

2597Uinta County, WYWY20,7289–

2598Morris County, KSKS5,3489–

2599Knox County, MOMO3,7289–

2600Harper County, KSKS5,3709–

2601Klickitat County, WAWA24,3319–

2602Baraga County, MIMI8,1699–

2603Russell County, KSKS6,5819–

2604Hyde County, NCNC4,5549–

2605Archer County, TXTX9,1299–

2606Mitchell County, TXTX8,9479–

2607Brooks County, TXTX6,5799–

2608Douglas County, SDSD2,8889–

2609Forest County, WIWI9,5749–

2610Walworth County, SDSD5,2179–

2611Knox County, NENE8,3359–

2612Wasatch County, UTUT38,5149–

2613Floyd County, TXTX4,8819–

2614Childress County, TXTX6,6439–

2615Bailey County, TXTX6,9639–

2616Gila County, AZAZ53,8018–

2617Major County, OKOK7,5368–

2618Blanco County, TXTX13,5818–

2619Barnes County, NDND10,5738–

2620Charles Mix County, SDSD9,3038–

2621Clearwater County, MNMN8,6478–

2622Wabaunsee County, KSKS7,0188–

2623Summit County, UTUT43,1418–

2624Woodson County, KSKS3,1188–

2625Pembina County, NDND6,5688–

2626Reynolds County, MOMO5,9928–

2627McCulloch County, TXTX7,4728–

2628Mercer County, MOMO3,4048–

2629Prowers County, COCO11,8848–

2630Iron County, WIWI6,1278–

2631Crosby County, TXTX4,8528–

2632Keith County, NENE8,1008–

2633Sevier County, UTUT22,8278–

2634Texas County, OKOK20,3228–

2635Cheyenne County, NENE9,5288–

2636Washington County, KSKS5,5338–

2637Pushmataha County, OKOK10,8078–

2638Otero County, NMNM70,3688–

2639Dimmit County, TXTX8,0248–

2640Ottawa County, KSKS5,7448–

2641Navajo County, AZAZ109,9468–

2642Traverse County, MNMN3,1308–

2643Plumas County, CACA18,5838–

2644Furnas County, NENE4,5248–

2645Pawnee County, NENE2,5108–

2646Coleman County, TXTX7,9158–

2647Thomas County, KSKS7,7258–

2648Jefferson County, OROR25,7408–

2649Jack County, TXTX9,5638–

2650Teton County, IDID13,2548–

2651Cassia County, IDID26,3978–

2652Hardeman County, TXTX3,2928–

2653Shannon County, MOMO7,2858–

2654Lynn County, TXTX6,0178–

2655Clinch County, GAGA6,8478–

2656Haskell County, TXTX5,4998–

2657Webster County, NENE3,3367–

2658Phillips County, KSKS4,7287–

2659Alfalfa County, OKOK5,6497–

2660Scott County, KSKS4,8157–

2661Lewis County, IDID3,7047–

2662Deuel County, SDSD4,4087–

2663Cameron Parish, LALA4,7187–

2664Albany County, WYWY38,5587–

2665Duval County, TXTX9,4027–

2666Carson County, TXTX5,8057–

2667Kingsbury County, SDSD5,2847–

2668Schoolcraft County, MIMI8,1877–

2669Woods County, OKOK8,4437–

2670Adams County, WAWA21,4887–

2671Harmon County, OKOK2,3277–

2672Goliad County, TXTX7,2087–

2673Mohave County, AZAZ228,1027–

2674Grant County, NMNM27,2527–

2675Stevens County, KSKS4,9847–

2676Siskiyou County, CACA42,0137–

2677Chautauqua County, KSKS3,3217–

2678Elmore County, IDID29,4657–

2679Hanson County, SDSD3,4567–

2680Harlan County, NENE3,0007–

2681Ransom County, NDND5,6177–

2682Greenwood County, KSKS5,8267–

2683Franklin County, NENE2,7957–

2684Roosevelt County, NMNM18,6157–

2685Aitkin County, MNMN16,2527–

2686Day County, SDSD5,4847–

2687Rooks County, KSKS4,6467–

2688Stafford County, KSKS4,0057–

2689Norton County, KSKS5,2887–

2690Ontonagon County, MIMI5,8237–

2691Haskell County, KSKS3,5997–

2692Brule County, SDSD5,2787–

2693Liberty County, FLFL8,0357–

2694Sherman County, NENE2,9247–

2695Boundary County, IDID13,9977–

2696Sherman County, KSKS5,7637–

2697Dawes County, NENE7,8586–

2698Wheeler County, TXTX4,7736–

2699Luce County, MIMI6,3396–

2700Pend Oreille County, WAWA14,4576–

2701Hansford County, TXTX4,9446–

2702Highland County, VAVA2,3186–

2703Okanogan County, WAWA45,2306–

2704Box Elder County, UTUT65,3206–

2705Iron County, UTUT67,1416–

2706Meade County, SDSD30,7116–

2707Foster County, NDND3,2126–

2708Bear Lake County, IDID6,7276–

2709Gray County, KSKS5,6526–

2710Marshall County, MNMN8,7986–

2711Campbell County, WYWY48,1456–

2712Luna County, NMNM25,4076–

2713Edwards County, KSKS2,6406–

2714Phillips County, COCO4,4206–

2715Hill County, MTMT16,1676–

2716Lassen County, CACA28,1176–

2717Mills County, TXTX4,5806–

2718Reeves County, TXTX12,1386–

2719Todd County, SDSD8,8636–

2720Routt County, COCO25,3296–

2721Crane County, TXTX4,5546–

2722Washington County, IDID11,5836–

2723Fremont County, IDID14,2086–

2724Rio Arriba County, NMNM39,8326–

2725Conejos County, COCO7,5296–

2726Marshall County, SDSD4,4266–

2727Garza County, TXTX4,5106–

2728Graham County, AZAZ40,1576–

2729Miner County, SDSD2,2816–

2730Knox County, TXTX3,1926–

2731Grant County, OKOK4,0676–

2732Smith County, KSKS3,5666–

2733Cochran County, TXTX2,5466–

2734Goshen County, WYWY12,6406–

2735Dewey County, OKOK4,2076–

2736Echols County, GAGA3,6856–

2737Apache County, AZAZ64,4456–

2738Osborne County, KSKS3,2855–

2739San Miguel County, NMNM26,2605–

2740Martin County, TXTX5,2845–

2741Dickey County, NDND4,8955–

2742Fisher County, TXTX3,6925–

2743Rush County, KSKS2,8455–

2744Spink County, SDSD6,1555–

2745Sargent County, NDND3,7115–

2746Hitchcock County, NENE2,4675–

2747Shoshone County, IDID14,1305–

2748Gregory County, SDSD4,0375–

2749Greeley County, NENE2,1545–

2750Boyd County, NENE1,6745–

2751Koochiching County, MNMN11,5875–

2752Kittson County, MNMN4,0315–

2753Cibola County, NMNM26,8075–

2754Holt County, NENE10,0675–

2755Elbert County, COCO30,5345–

2756Park County, MTMT18,2145–

2757Coconino County, AZAZ144,3685–

2758Benson County, NDND5,7595–

2759Barber County, KSKS4,0835–

2760Elk County, KSKS2,4585–

2761Richland County, MTMT11,3775–

2762Blaine County, IDID25,5175–

2763Deuel County, NENE1,8625–

2764Lincoln County, KSKS2,8615–

2765Kiowa County, KSKS2,4325–

2766Baylor County, TXTX3,4725–

2767Power County, IDID8,2465–

2768Crowley County, COCO5,6775–

2769Skamania County, WAWA12,6695–

2770Baker County, OROR16,6585–

2771Sanborn County, SDSD2,3885–

2772Pierce County, NDND3,8385–

2773McLean County, NDND9,7405–

2774Uintah County, UTUT38,2785–

2775Lake County, MNMN10,7465–

2776Sedgwick County, COCO2,2475–

2777Chase County, NENE3,7185–

2778Lincoln County, MTMT22,3285–

2779Bottineau County, NDND6,2845–

2780Jefferson County, MTMT13,3295–

2781Morton County, KSKS2,4705–

2782Custer County, NENE10,5005–

2783San Saba County, TXTX5,7875–

2784Crook County, OROR27,5645–

2785Piscataquis County, MEME17,4095–

2786LaMoure County, NDND4,1355–

2787Eddy County, NDND2,3295–

2788Jewell County, KSKS2,8305–

2789Roosevelt County, MTMT10,2425–

2790Griggs County, NDND2,2395–

2791Columbia County, WAWA4,1415–

2792Kearny County, KSKS3,8885–

2793Issaquena County, MSMS1,2635–

2794Wells County, NDND3,7295–

2795Jerauld County, SDSD1,6545–

2796Clark County, SDSD4,0315–

2797Decatur County, KSKS2,7165–

2798Jim Hogg County, TXTX4,5554–

2799Nelson County, NDND2,9634–

2800Aurora County, SDSD2,8014–

2801Hall County, TXTX2,7374–

2802Greenlee County, AZAZ9,3124–

2803Meade County, KSKS3,8524–

2804Kimball County, NENE3,3914–

2805Grand County, COCO16,4964–

2806Tripp County, SDSD5,7084–

2807Ouray County, COCO5,2654–

2808Fall River County, SDSD7,4674–

2809Gosper County, NENE1,8034–

2810Trego County, KSKS2,7404–

2811McIntosh County, NDND2,4514–

2812Trinity County, CACA15,7204–

2813Hemphill County, TXTX3,0834–

2814Cavalier County, NDND3,4974–

2815Glacier County, MTMT13,4634–

2816Dawson County, MTMT8,6924–

2817Donley County, TXTX3,2134–

2818Custer County, SDSD9,4314–

2819Pondera County, MTMT6,0724–

2820Archuleta County, COCO14,3064–

2821Caribou County, IDID7,2524–

2822Carbon County, MTMT11,4664–

2823Graham County, KSKS2,3714–

2824Platte County, WYWY8,6344–

2825Harper County, OKOK3,1724–

2826Duchesne County, UTUT20,8564–

2827Chase County, KSKS2,5724–

2828Collingsworth County, TXTX2,4874–

2829Edmunds County, SDSD4,0224–

2830Mountrail County, NDND9,3954–

2831Reagan County, TXTX3,1664–

2832Wichita County, KSKS2,0314–

2833Lincoln County, WAWA11,9824–

2834Perkins County, NENE2,8494–

2835Morrill County, NENE4,4044–

2836Yuma County, COCO9,8964–

2837Tooele County, UTUT87,4614–

2838Huerfano County, COCO7,0114–

2839Quay County, NMNM8,4544–

2840Garfield County, NENE1,7104–

2841Coke County, TXTX3,4124–

2842Morrow County, OROR12,6024–

2843Ness County, KSKS2,6174–

2844Washakie County, WYWY7,5974–

2845Buffalo County, SDSD1,8024–

2846Sweetwater County, WYWY41,2674–

2847Potter County, SDSD2,3774–

2848Mason County, TXTX3,9904–

2849Fremont County, WYWY39,4644–

2850Ellis County, OKOK3,6134–

2851Stillwater County, MTMT9,4454–

2852Roger Mills County, OKOK3,2594–

2853Dallam County, TXTX7,5084–

2854Shackelford County, TXTX3,1974–

2855Churchill County, NVNV25,8514–

2856Renville County, NDND2,3314–

2857Upton County, TXTX3,1314–

2858Towner County, NDND2,0404–

2859La Salle County, TXTX6,5174–

2860Butte County, SDSD10,8564–

2861McHenry County, NDND5,1303–

2862Sierra County, CACA3,0983–

2863Clearwater County, IDID9,1183–

2864Real County, TXTX2,7453–

2865Colfax County, NMNM12,1843–

2866Sioux County, NDND3,6673–

2867Stanton County, KSKS1,9863–

2868Steele County, NDND1,7973–

2869Sheridan County, KSKS2,4273–

2870Lipscomb County, TXTX2,9553–

2871Big Horn County, WYWY12,0243–

2872Park County, WYWY31,1713–

2873Bent County, COCO5,7163–

2874Beaver County, OKOK4,8823–

2875Lane County, KSKS1,5083–

2876Kit Carson County, COCO7,0693–

2877Oliver County, NDND1,8983–

2878Kimble County, TXTX4,4383–

2879Park County, COCO18,3143–

2880Mono County, CACA12,5053–

2881Adams County, NDND2,2753–

2882Emmons County, NDND3,2153–

2883Rawlins County, KSKS2,4313–

2884Frontier County, NENE2,6553–

2885Cheyenne County, KSKS2,6043–

2886Gunnison County, COCO17,4393–

2887Garfield County, WAWA2,4163–

2888Keweenaw County, MIMI2,1863–

2889Lake of the Woods County, MNMN3,7703–

2890Sanders County, MTMT14,0623–

2891Lincoln County, WYWY21,1803–

2892Sherman County, TXTX2,7813–

2893Bowman County, NDND2,7623–

2894Concho County, TXTX3,6073–

2895Custer County, MTMT12,0343–

2896Pecos County, TXTX14,5603–

2897La Paz County, AZAZ16,7113–

2898Torrance County, NMNM16,1003–

2899Hamilton County, NYNY5,0063–

2900Hettinger County, NDND2,4923–

2901Gove County, KSKS2,6313–

2902Brown County, NENE2,8263–

2903Sitka, AKAK8,3193–

2904Hand County, SDSD3,1213–

2905Comanche County, KSKS1,6733–

2906Bristol Bay, AKAK8473–

2907Oneida County, IDID5,0853–

2908Las Animas County, COCO14,3913–

2909Logan County, KSKS2,6613–

2910Logan County, NDND1,8593–

2911Ferry County, WAWA7,5173–

2912Dickens County, TXTX1,6923–

2913Ketchikan Gateway, AKAK13,5493–

2914Powell County, MTMT7,1573–

2915Sutton County, TXTX3,2033–

2916McPherson County, SDSD2,3473–

2917San Miguel County, COCO7,7533–

2918Sheridan County, MTMT3,4363–

2919Dundy County, NENE1,5683–

2920Teton County, WYWY23,3333–

2921Faulk County, SDSD2,1783–

2922Fergus County, MTMT11,8253–

2923Broadwater County, MTMT8,4933–

2924Sheridan County, NENE4,8093–

2925Teton County, MTMT6,4963–

2926Lincoln County, IDID5,6033–

2927Burke County, NDND2,1323–

2928Weston County, WYWY6,8403–

2929Mineral County, MTMT5,1853–

2930Bennett County, SDSD3,3073–

2931Campbell County, SDSD1,3773–

2932Cook County, MNMN5,5223–

2933Toole County, MTMT5,2113–

2934Malheur County, OROR32,2613–

2935Converse County, WYWY13,8243–

2936Custer County, COCO5,5903–

2937Costilla County, COCO3,6793–

2938Kenai Peninsula, AKAK61,9513–

2939Foard County, TXTX1,0443–

2940Hodgeman County, KSKS1,6193–

2941Lincoln County, NMNM19,8443–

2942Menard County, TXTX1,9562–

2943Cottle County, TXTX1,2242–

2944Hartley County, TXTX4,9042–

2945Clark County, KSKS1,9002–

2946Kidder County, NDND2,3932–

2947Modoc County, CACA8,4262–

2948Hot Springs County, WYWY4,6002–

2949Dewey County, SDSD5,4192–

2950Hamilton County, KSKS2,5002–

2951Moffat County, COCO13,1222–

2952Adams County, IDID5,0132–

2953Sierra County, NMNM11,3952–

2954Sherman County, OROR2,0512–

2955Emery County, UTUT10,1772–

2956McKenzie County, NDND15,1922–

2957Divide County, NDND2,1102–

2958Kinney County, TXTX3,1282–

2959Schleicher County, TXTX2,2452–

2960Greeley County, KSKS1,1822–

2961Big Horn County, MTMT12,7522–

2962Armstrong County, TXTX1,8432–

2963Socorro County, NMNM15,8382–

2964Lyman County, SDSD3,6942–

2965Mora County, NMNM4,0512–

2966Sheridan County, NDND1,2962–

2967Musselshell County, MTMT5,5822–

2968Stonewall County, TXTX1,1862–

2969Wallowa County, OROR7,5952–

2970Briscoe County, TXTX1,4742–

2971Aleutians West Census Area, AKAK5,2402–

2972Grant County, NDND2,2062–

2973Carbon County, WYWY14,0132–

2974Golden Valley County, NDND1,8082–

2975Rosebud County, MTMT8,2532–

2976Throckmorton County, TXTX1,5542–

2977Rock County, NENE1,2592–

2978Dunn County, NDND4,0582–

2979Wallace County, KSKS1,4412–

2980Kodiak Island, AKAK12,3872–

2981Hyde County, SDSD1,1912–

2982Elko County, NVNV54,8152–

2983San Juan County, COCO8132–

2984Fallon County, MTMT2,9592–

2985Washington County, COCO4,7322–

2986Crook County, WYWY7,8522–

2987Rio Blanco County, COCO6,6832–

2988Boise County, IDID8,5452–

2989Beaver County, UTUT7,3012–

2990Grand County, UTUT9,7902–

2991Cimarron County, OKOK2,0592–

2992Inyo County, CACA18,1582–

2993Baca County, COCO3,3472–

2994Lincoln County, COCO5,6452–

2995Grant County, OROR7,0752–

2996Hidalgo County, NMNM3,9292–

2997Mineral County, NVNV4,4072–

2998Presidio County, TXTX5,4332–

2999Juab County, UTUT13,5672–

3000Hayes County, NENE8212–

SHOWING 2,501–3,000 OF 3,122

1 2 3 4 5 6 7

Download CSV (full list, 3,122 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS