AL · 2026 Census Gazetteer

Alabama counties by area

Official, comparable measurements for 67 counties and county equivalents.

Source fields preservedGEOID · ALAND · AWATER

County equivalents67

Combined land50,651.6 mi²

Combined water1,768.4 mi²

Largest by landBaldwin County

Understanding Alabama’s county areas

The land-area range runs from Etowah County at 535.1 mi² to Baldwin County at 1,589.9 mi². The largest has 3 times the land area of the smallest and accounts for 3.1% of the combined county land in Alabama.

The median county-equivalent land area is 672.1 mi², above the national median of 604.5 mi². The median describes the middle of the county size distribution; it does not describe how people or development are distributed. A state with a few very large counties can have a much smaller median than its largest entry suggests.

Where water changes the picture

Baldwin County has the most assigned water area, at 437.3 mi². Mobile County has the highest water share, with water making up 25.2% of its total area. Water area and water percentage answer different questions: the first measures an amount, while the second measures the mix of land and water.

Across all 67 entries, water accounts for 3.4% of the combined total area. This is calculated from the summed land and water measurements, rather than averaging county percentages, which would give each small and large county equal weight.

Compare the largest and smallest county equivalents in Alabama to see land, water, and total area on the same scale.

These calculations use the 2026 Census county records listed below. County-equivalent boundaries vary between states; area alone does not measure population, density, or usable land. See coverage and calculation rules.

Complete area table

Sorted from largest to smallest land area.

#	County / equivalent	Land	Water	Water share
1	Baldwin CountyGEOID 01003	1,589.9 mi²	437.3 mi²	21.6%
2	Tuscaloosa CountyGEOID 01125	1,320.9 mi²	30.4 mi²	2.2%
3	Clarke CountyGEOID 01025	1,238.4 mi²	14.2 mi²	1.1%
4	Mobile CountyGEOID 01097	1,229.4 mi²	414.7 mi²	25.2%
5	Jefferson CountyGEOID 01073	1,111.6 mi²	12.5 mi²	1.1%
6	Washington CountyGEOID 01129	1,080.3 mi²	8.3 mi²	0.8%
7	Jackson CountyGEOID 01071	1,078 mi²	48.8 mi²	4.3%
8	Covington CountyGEOID 01039	1,030.6 mi²	13.2 mi²	1.3%
9	Monroe CountyGEOID 01099	1,025.7 mi²	8.7 mi²	0.8%
10	Dallas CountyGEOID 01047	978.7 mi²	15.1 mi²	1.5%
11	Marengo CountyGEOID 01091	976.9 mi²	5.8 mi²	0.6%
12	Escambia CountyGEOID 01053	945.4 mi²	7.7 mi²	0.8%
13	Choctaw CountyGEOID 01023	913.5 mi²	7.4 mi²	0.8%
14	Sumter CountyGEOID 01119	903.8 mi²	9.5 mi²	1%
15	Wilcox CountyGEOID 01131	887.9 mi²	19.5 mi²	2.2%
16	Barbour CountyGEOID 01005	885 mi²	19.5 mi²	2.2%
17	Pickens CountyGEOID 01107	881.4 mi²	8.7 mi²	1%
18	Conecuh CountyGEOID 01035	850.3 mi²	2.5 mi²	0.3%
19	Madison CountyGEOID 01089	801.7 mi²	11 mi²	1.4%
20	Walker CountyGEOID 01127	791.1 mi²	14.1 mi²	1.8%
21	Shelby CountyGEOID 01117	785.5 mi²	24 mi²	3%
22	Montgomery CountyGEOID 01101	785.4 mi²	14.6 mi²	1.8%
23	DeKalb CountyGEOID 01049	777.1 mi²	1.6 mi²	0.2%
24	Butler CountyGEOID 01013	776.8 mi²	1 mi²	0.1%
25	Marion CountyGEOID 01093	742.3 mi²	1.2 mi²	0.2%
26	Talladega CountyGEOID 01121	736.8 mi²	23.5 mi²	3.1%
27	Cullman CountyGEOID 01043	734.7 mi²	20.3 mi²	2.7%
28	Perry CountyGEOID 01105	719.7 mi²	4.2 mi²	0.6%
29	Tallapoosa CountyGEOID 01123	716.5 mi²	49.7 mi²	6.5%
30	Lowndes CountyGEOID 01085	716.1 mi²	9 mi²	1.2%
31	Chilton CountyGEOID 01021	692.8 mi²	7.9 mi²	1.1%
32	Lawrence CountyGEOID 01079	690.7 mi²	26.5 mi²	3.7%
33	Coffee CountyGEOID 01031	679.1 mi²	1.4 mi²	0.2%
34	Pike CountyGEOID 01109	672.1 mi²	0.9 mi²	0.1%
35	Lauderdale CountyGEOID 01077	668 mi²	51.6 mi²	7.2%
36	Coosa CountyGEOID 01037	650.9 mi²	15.4 mi²	2.3%
37	Greene CountyGEOID 01063	647 mi²	12.9 mi²	2%
38	Blount CountyGEOID 01009	644.9 mi²	5.7 mi²	0.9%
39	Hale CountyGEOID 01065	644 mi²	12.5 mi²	1.9%
40	Russell CountyGEOID 01113	641.2 mi²	6 mi²	0.9%
41	Franklin CountyGEOID 01059	634 mi²	12.6 mi²	1.9%
42	St. Clair CountyGEOID 01115	631.6 mi²	21.7 mi²	3.3%
43	Fayette CountyGEOID 01057	627.7 mi²	1.7 mi²	0.3%
44	Bullock CountyGEOID 01011	622.8 mi²	2.3 mi²	0.4%
45	Bibb CountyGEOID 01007	622.5 mi²	3.7 mi²	0.6%
46	Elmore CountyGEOID 01051	618.5 mi²	38.5 mi²	5.9%
47	Winston CountyGEOID 01133	613 mi²	18.9 mi²	3%
48	Crenshaw CountyGEOID 01041	608.9 mi²	2.1 mi²	0.3%
49	Macon CountyGEOID 01087	608.7 mi²	4.5 mi²	0.7%
50	Lee CountyGEOID 01081	607.6 mi²	8.3 mi²	1.3%
51	Calhoun CountyGEOID 01015	605.9 mi²	6.4 mi²	1%
52	Lamar CountyGEOID 01075	604.8 mi²	0.6 mi²	0.1%
53	Clay CountyGEOID 01027	604 mi²	2 mi²	0.3%
54	Chambers CountyGEOID 01017	596.6 mi²	6.6 mi²	1.1%
55	Autauga CountyGEOID 01001	594.5 mi²	9.9 mi²	1.6%
56	Colbert CountyGEOID 01033	593 mi²	30.6 mi²	4.9%
57	Randolph CountyGEOID 01111	580.6 mi²	3.6 mi²	0.6%
58	Houston CountyGEOID 01069	579.8 mi²	1.9 mi²	0.3%
59	Morgan CountyGEOID 01103	579.7 mi²	19.4 mi²	3.2%
60	Geneva CountyGEOID 01061	574.5 mi²	4.5 mi²	0.8%
61	Marshall CountyGEOID 01095	566 mi²	57.2 mi²	9.2%
62	Limestone CountyGEOID 01083	563.4 mi²	43.8 mi²	7.2%
63	Henry CountyGEOID 01067	561.9 mi²	6.4 mi²	1.1%
64	Dale CountyGEOID 01045	561.1 mi²	1.6 mi²	0.3%
65	Cleburne CountyGEOID 01029	560.1 mi²	0.9 mi²	0.2%
66	Cherokee CountyGEOID 01019	553.6 mi²	46.4 mi²	7.7%
67	Etowah CountyGEOID 01055	535.1 mi²	13.5 mi²	2.5%

How to read this table. Land and water areas are Census statistical measurements in square miles. Adding county rows can differ slightly from separately published state totals because of rounding and geographic treatment.