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What are the largest counties in Arkansas?

Pulaski County is the largest county in Arkansas, with 404,611 residents in 2025 (Census PEP). Benton County (332,554) and Washington County (271,213) come next.

Data as of 2025 · updated

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All 75 ranked Arkansas counties

Arkansas counties ranked by population
RankCountyResidents 2025Change 2020–25
1Pulaski County404,611+1.3%
2Benton County332,554+16.0%
3Washington County271,213+9.9%
4Faulkner County133,979+8.2%
5Saline County133,288+7.6%
6Sebastian County130,641+2.2%
7Craighead County116,957+4.8%
8Garland County99,695−0.6%
9White County80,085+4.2%
10Lonoke County76,664+3.5%
11Pope County64,976+2.5%
12Jefferson County62,987−5.7%
13Crawford County62,657+4.1%
14Greene County47,411+3.4%
15Crittenden County46,210−3.9%
16Baxter County42,982+3.1%
17Miller County42,357−0.5%
18Independence County38,785+2.2%
19Boone County38,628+3.3%
20Mississippi County37,828−6.7%
21Union County36,926−5.2%
22Hot Spring County33,451+1.1%
23Carroll County29,263+3.6%
24Johnson County26,225+2.0%
25Cleburne County25,672+3.9%
26Poinsett County22,483−2.0%
27Columbia County21,894−3.7%
28St. Francis County21,800−5.3%
29Ouachita County21,731−3.9%
30Logan County21,633+2.5%
31Conway County21,393+3.2%
32Clark County20,938−2.2%
33Yell County19,956−1.3%
34Polk County19,486+1.6%
35Hempstead County19,080−4.6%
36Randolph County18,876+1.5%
37Grant County18,756+4.1%
38Madison County18,410+11.2%
39Sharp County18,122+4.7%
40Ashley County17,831−5.9%
41Franklin County17,725+3.5%
42Marion County17,593+4.3%
43Drew County17,054−1.5%
44Jackson County16,741−0.0%
45Lawrence County16,273+0.3%
46Van Buren County16,238+2.8%
47Cross County16,186−3.7%
48Arkansas County15,836−7.4%
49Sevier County15,758−0.1%
50Izard County14,405+5.9%
51Phillips County14,255−13.0%
52Clay County14,052−3.3%
53Lincoln County12,764−1.0%
54Stone County12,703+2.9%
55Fulton County12,492+3.7%
56Howard County12,306−3.6%
57Little River County11,763−1.8%
58Perry County10,309+3.1%
59Desha County9,984−11.8%
60Scott County9,965+1.4%
61Pike County9,964−1.9%
62Bradley County9,828−6.4%
63Chicot County9,107−10.3%
64Montgomery County8,579+1.1%
65Lee County8,029−6.4%
66Nevada County7,942−4.1%
67Prairie County7,923−3.9%
68Searcy County7,848+0.0%
69Cleveland County7,224−4.3%
70Newton County7,026−2.3%
71Monroe County6,244−7.8%
72Dallas County6,011−6.7%
73Lafayette County5,888−6.5%
74Woodruff County5,710−8.2%
75Calhoun County4,632−2.2%

How this is ranked

The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Counties with fewer than 1,000 residents are not ranked. Areas without an estimate for the same year as the others are not ranked.

Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built.

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Questions

What is the largest county in Arkansas?

Pulaski County is the largest county in Arkansas, with 404,611 residents in 2025 (Census PEP). Benton County (332,554) and Washington County (271,213) come next.

How is this ranking calculated?

The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Counties with fewer than 1,000 residents are not ranked. Areas without an estimate for the same year as the others are not ranked.

More rankings for Arkansas

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