Which county has the lowest population change?

Baltimore, Maryland ranks #1 with -35,253 (2020 Decennial Census).

What are the top 5 counties by population change?

Baltimore, Maryland, Wayne County, Michigan, Genesee County, Michigan, St. Louis, Missouri, Robeson County, North Carolina.

How many counties are in this ranking?

3,131 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is population change measured?

Change in the number of residents from the prior decennial census (raw count, not a percentage). Source: US Census Bureau, 2020 Decennial Census.

RANKING · 2020 CENSUS · 131 SHOWN OF 3,131

Most population lost, US counties · 2020

US counties that lost the most residents from the 2010 census to 2020, by raw count of people rather than percentage.

Flip the list · Most population gained, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

3001Baltimore County, MDMD847,650+49,506−20%

3002Anne Arundel County, MDMD603,380+50,605−19%

3003Bergen County, NJNJ977,026+50,616−14%

3004St. Lucie County, FLFL402,449+51,437+21%

3005Berkeley County, SCSC274,666+52,018+275%

3006Cherokee County, GAGA299,273+52,274+1%

3007Guilford County, NCNC562,234+52,893−28%

3008Comal County, TXTX209,166+53,029+102%

3009Middlesex County, NJNJ883,335+53,304−32%

3010Madison County, ALAL433,516+53,342+41%

3011Collier County, FLFL417,131+54,232−45%

3012Sarasota County, FLFL479,958+54,558+13%

3013Norfolk County, MAMA739,749+55,131+61%

3014Westchester County, NYNY1,015,743+55,344+14%

3015Kent County, MIMI675,232+55,352−25%

3016York County, SCSC306,887+56,017+69%

3017Davis County, UTUT381,227+56,200+10%

3018Nassau County, NYNY1,398,939+56,242+19%

3019Placer County, CACA442,081+56,307−26%

3020Montgomery County, PAPA877,643+56,679−21%

3021Durham County, NCNC347,240+57,246+38%

3022Charleston County, SCSC436,200+58,026+289%

3023Brazoria County, TXTX419,080+58,865+18%

3024Volusia County, FLFL606,573+58,950−19%

3025Galveston County, TXTX372,207+59,373+81%

3026Larimer County, COCO377,292+59,436−9%

3027Bell County, TXTX402,248+60,412+29%

3028Ocean County, NJNJ673,746+60,662−22%

3029Polk County, IAIA516,546+61,761+30%

3030Benton County, ARAR332,554+62,994+13%

3031Pima County, AZAZ1,074,685+63,170−64%

3032Brevard County, FLFL663,982+63,236−18%

3033Honolulu County, HIHI988,703+63,301+59%

3034Worcester County, MAMA888,502+63,559+54%

3035Williamson County, TNTN272,061+64,544+41%

3036El Paso County, TXTX877,858+65,010−26%

3037Washoe County, NVNV509,386+65,085−23%

3038Johnson County, KSKS636,906+65,684−32%

3039Tulsa County, OKOK698,782+65,876+10%

3040Essex County, MAMA826,653+66,670+25%

3041Douglas County, NENE606,460+67,416+43%

3042Spokane County, WAWA558,344+68,118+20%

3043Fairfax County, VAVA1,167,873+68,583−55%

3044San Francisco County, CACA826,079+68,730+30%

3045Kern County, CACA927,068+69,604−41%

3046Washington County, OROR611,708+70,662−47%

3047Oakland County, MIMI1,288,337+72,033−35%

3048DeKalb County, GAGA774,394+72,489−40%

3049Douglas County, COCO399,396+72,513−37%

3050Hamilton County, ININ387,036+72,898−1%

3051Dane County, WIWI590,375+73,431+24%

3052Marion County, ININ992,196+73,810+17%

3053Greenville County, SCSC583,125+74,309+25%

3054Forsyth County, GAGA282,805+75,772+39%

3055Suffolk County, MAMA791,891+75,913+193%

3056Weld County, COCO378,426+76,156+55%

3057Manatee County, FLFL468,200+76,877+47%

3058Oklahoma County, OKOK822,125+77,659+28%

3059Philadelphia County, PAPA1,574,281+77,791−214%

3060Clark County, WAWA532,119+77,948−27%

3061Adams County, COCO554,668+77,969−21%

3062Cobb County, GAGA793,345+78,071−51%

3063Fresno County, CACA1,035,456+78,204−41%

3064Rutherford County, TNTN386,352+78,882+24%

3065Essex County, NJNJ896,379+79,759+417%

3066Multnomah County, OROR795,391+80,094+5%

3067Prince William County, VAVA502,966+80,202+23%

3068Cook County, ILIL5,194,625+80,866−70%

3069Horry County, SCSC427,551+81,738+55%

3070Arapahoe County, COCO673,820+83,067−14%

3071St. Johns County, FLFL346,328+83,386+112%

3072Hays County, TXTX304,390+83,960+163%

3073Lake County, FLFL456,068+86,904+49%

3074Bronx County, NYNY1,406,332+87,546−32%

3075District of Columbia, DCDC693,645+87,822−352%

3076Davidson County, TNTN745,904+89,203+51%

3077Montgomery County, MDMD1,074,582+90,284−22%

3078Hudson County, NJNJ735,033+90,588+62%

3079San Joaquin County, CACA823,815+93,927+13%

3080Hidalgo County, TXTX921,549+96,012−48%

3081Pasco County, FLFL674,516+97,194+53%

3082Ada County, IDID546,141+102,602+8%

3083Prince George's County, MDMD970,374+103,781+44%

3084El Paso County, COCO757,040+108,132−10%

3085New York County, NYNY1,664,862+108,378+118%

3086Loudoun County, VAVA449,749+108,648+30%

3087Snohomish County, WAWA870,656+114,622−18%

3088Denver County, COCO740,613+115,364+33%

3089Contra Costa County, CACA1,170,070+116,902−19%

3090Osceola County, FLFL481,718+119,971+85%

3091Polk County, FLFL874,790+122,951+57%

3092Pierce County, WAWA946,288+125,905+10%

3093Middlesex County, MAMA1,669,979+128,917+93%

3094Hennepin County, MNMN1,284,784+129,140+54%

3095Duval County, FLFL1,062,963+131,304+24%

3096Lee County, FLFL875,607+142,068+34%

3097Utah County, UTUT759,859+142,835+36%

3098Fulton County, GAGA1,098,791+146,129−13%

3099San Bernardino County, CACA2,224,091+146,444−50%

3100Gwinnett County, GAGA1,018,099+151,741−36%

3101Santa Clara County, CACA1,914,391+154,617−16%

3102Salt Lake County, UTUT1,220,916+155,583−10%

3103Franklin County, OHOH1,361,536+160,393+49%

3104Montgomery County, TXTX781,194+164,697+48%

3105Sacramento County, CACA1,618,460+166,267−9%

3106Palm Beach County, FLFL1,575,726+172,057−36%

3107Alameda County, CACA1,636,630+172,082+5%

3108Queens County, NYNY2,358,182+174,742−37%

3109Orange County, CACA3,149,507+176,757−59%

3110Williamson County, TXTX752,827+186,338+69%

3111Los Angeles County, CACA9,694,934+195,404−70%

3112Mecklenburg County, NCNC1,233,383+195,854+6%

3113Broward County, FLFL2,013,317+196,309−47%

3114San Diego County, CACA3,282,248+203,321−36%

3115Miami-Dade County, FLFL2,802,029+205,332–

3116Wake County, NCNC1,257,235+228,417+12%

3117Riverside County, CACA2,544,916+228,544−39%

3118Hillsborough County, FLFL1,574,115+230,536+40%

3119Kings County, NYNY2,653,963+231,374+41%

3120Fort Bend County, TXTX975,191+237,404+84%

3121Denton County, TXTX1,069,346+243,808+53%

3122Dallas County, TXTX2,661,397+245,400−33%

3123Travis County, TXTX1,389,670+265,922+13%

3124Collin County, TXTX1,297,179+282,124+24%

3125Orange County, FLFL1,528,002+283,952+30%

3126Bexar County, TXTX2,160,088+294,551+42%

3127Tarrant County, TXTX2,248,466+301,606+9%

3128Clark County, NVNV2,407,226+314,192−50%

3129King County, WAWA2,344,939+338,426+47%

3130Maricopa County, AZAZ4,689,558+603,451−36%

3131Harris County, TXTX5,045,026+638,686+10%

SHOWING 3,001–3,131 OF 3,131

1 2 3 4 5 6 7

Download CSV (full list, 3,131 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS