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Population per Square Mile in Missouri, by County

Population per Square Mile for every county in Missouri, ranked. The highest is St. Louis city at 4,674.5 and the lowest is Shannon County at 7.1.

Missouri: 90.1 · United States: n/a · median county in Missouri: 30.7

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#County Population per Square Mile
1St. Louis city4,674.5
2St. Louis County1,959.8
3Jackson County1,191.0
4St. Charles County739.6
5Clay County649.1
6Greene County449.2
7Jefferson County349.6
8Boone County274.3
9Platte County262.9
10Buchanan County204.7
11Cole County196.7
12Jasper County194.8
13Christian County165.2
14Cass County159.0
15St. Francois County148.3
16Cape Girardeau County143.0
17Franklin County114.8
18Lincoln County100.6
19Pulaski County98.5
20Newton County96.2
21Scott County90.3
22Taney County89.4
23Warren County86.7
24Stone County69.1
25Webster County68.3
26Phelps County67.3
27Camden County66.6
28Johnson County66.0
29Marion County65.1
30Pettis County63.6
31Lawrence County63.1
32Butler County60.5
33Callaway County53.6
34Lafayette County52.7
35Clinton County51.1
36Polk County51.1
37Dunklin County50.7
38Randolph County50.5
39Laclede County47.6
40Barry County45.0
41Adair County44.6
42McDonald County43.9
43Howell County43.6
44Miller County42.6
45Andrew County41.8
46Ray County40.7
47Perry County40.0
48Ste. Genevieve County37.2
49Moniteau County36.8
50Morgan County36.3
51Audrain County35.5
52Stoddard County34.6
53Dallas County32.4
54Henry County32.0
55Washington County30.9
56Cedar County30.8
57Crawford County30.7
58Saline County30.7
59Pemiscot County30.4
60Cooper County29.8
61Mississippi County28.9
62Benton County28.6
63Gasconade County28.4
64Wright County27.8
65Livingston County27.0
66Pike County26.4
67DeKalb County25.8
68Madison County25.7
69Vernon County23.8
70Nodaway County23.7
71New Madrid County23.3
72Grundy County22.5
73Ralls County22.2
74Osage County22.1
75Howard County21.9
76Hickory County21.5
77Montgomery County21.4
78Texas County21.4
79Caldwell County20.9
80Barton County19.7
81Lewis County19.7
82Bates County19.3
83Dent County19.3
84Linn County19.3
85Macon County18.9
86Iron County17.2
87Bollinger County17.1
88Ripley County17.0
89Maries County16.0
90Dade County15.6
91Daviess County15.0
92Douglas County14.7
93Wayne County14.3
94St. Clair County14.2
95Monroe County13.5
96Clark County13.2
97Schuyler County13.1
98Gentry County12.7
99Carroll County12.1
100Shelby County12.0
101Ozark County11.9
102Harrison County11.3
103Oregon County11.0
104Scotland County10.7
105Carter County10.4
106Chariton County9.8
107Atchison County9.5
108Holt County9.2
109Putnam County9.0
110Sullivan County9.0
111Mercer County7.7
112Knox County7.5
113Reynolds County7.4
114Worth County7.3
115Shannon County7.1

People divided by land area. Water is excluded, so lake and coastal counties are not unfairly diluted.

Source: ACS 2020-2024 5-Year Estimates, 2024.

Missouri ranks 30th of 52 states for population per square mile.

Population per Square Mile in other states

Other statistics for Missouri by county