Marshall County is a county of the state of Alabama, United States. As of the 2020 census the population was 97,612. Its county seat is Guntersville. A second courthouse is in Albertville. Its name is in honor of John Marshall, famous Chief Justice of the United States. Marshall County is a dry county, with the exception of the five cities of Albertville, Arab, Grant, Guntersville, and Boaz. Marshall County comprises the Albertville, AL Micropolitan Statistical Area, which is also included in the Huntsville-Decatur-Albertville, AL Combined Statistical Area.

Marshall County was established on January 9, 1836.

According to the United States Census Bureau, the county has a total area of 623 square miles (1,610 km), of which 566 square miles (1,470 km) is land and 57 square miles (150 km) (9.2%) is water. The Tennessee River runs both north and south within the county.

Tennessee River

• Jackson County - northeast
• DeKalb County - east
• Etowah County - southeast
• Blount County - south
• Cullman County - southwest
• Morgan County - west
• Madison County - northwest

• Huntsville - northwest

• Alabama and Tennessee River Railway

Historical population

Census	Pop.	Note	%±
1840	7,553		—
1850	8,846		17.1%
1860	11,472		29.7%
1870	9,871		−14.0%
1880	14,585		47.8%
1890	18,935		29.8%
1900	23,289		23.0%
1910	28,553		22.6%
1920	32,669		14.4%
1930	39,802		21.8%
1940	42,395		6.5%
1950	45,090		6.4%
1960	48,018		6.5%
1970	54,211		12.9%
1980	65,622		21.0%
1990	70,832		7.9%
2000	82,231		16.1%
2010	93,019		13.1%
2020	97,612		4.9%
2023 (est.)	100,756		3.2%
U.S. Decennial Census 1790–1960 1900–1990 1990–2000 2010–2020

Marshall County, Alabama – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.

Race / Ethnicity (NH = Non-Hispanic)	Pop 2000	Pop 2010	Pop 2020	% 2000	% 2010	% 2020
White alone (NH)	75,081	78,060	74,666	91.30%	83.92%	76.49%
Black or African American alone (NH)	1,194	1,389	2,293	1.45%	1.49%	2.35%
Native American or Alaska Native alone (NH)	408	570	418	0.50%	0.61%	0.43%
Asian alone (NH)	196	475	579	0.24%	0.51%	0.59%
Pacific Islander alone (NH)	20	63	128	0.02%	0.07%	0.13%
Other race alone (NH)	35	63	199	0.04%	0.07%	0.20%
Mixed race or Multiracial (NH)	641	1,161	3,671	0.78%	1.25%	3.76%
Hispanic or Latino (any race)	4,656	11,238	15,658	5.66%	12.08%	16.04%
Total	82,231	93,019	97,612	100.00%	100.00%	100.00%

As of the census of 2020, there were 97,612 people, 35,330 households, and 25,078 families residing in the county.

As of the census of 2010, there were 93,019 people, 35,810 households, and 25,328 families living in the county. The population density was 164 people per square mile (63 people/km). There were 40,342 housing units at an average density of 71 units per square mile (27 units/km). The racial makeup of the county was 87.6% White, 1.6% Black or African American, 0.8% Native American, 0.5% Asian, 0.1% Pacific Islander, 7.8% from other races, and 1.7% from two or more races. 12.1% of the population were Hispanic or Latino of any race. Of the 35,810 households 30.3% had children under the age of 18 living with them, 53.4% were married couples living together, 12.1% had a female householder with no husband present, and 29.3% were non-families. 25.4% of households were one person and 11.4% were one person aged 65 or older. The average household size was 2.57 and the average family size was 3.05.

The age distribution was 25.0% under the age of 18, 8.58% from 18 to 24, 25.3% from 25 to 44, 26.0% from 45 to 64, and 14.9% 65 or older. The median age was 38.2 years. For every 100 females, there were 97.2 males. For every 100 females age 18 and over, there were 100.1 males.

The median household income was $37,661 and the median family income was $47,440. Males had a median income of $36,024 versus $27,478 for females. The per capita income for the county was $19,875. About 15.3% of families and 19.9% of the population were below the poverty line, including 30.3% of those under age 18 and 12.5% of those age 65 or over.

As of the census of 2000, there were 82,231 people, 32,547 households, and 23,531 families living in the county. The population density was 145 people per square mile (56 people/km). There were 36,331 housing units at an average density of 64 units per square mile (25 units/km). The racial makeup of the county was 93.38% White, 1.47% Black or African American, 0.53% Native American, 0.24% Asian, 0.04% Pacific Islander, 3.24% from other races, and 1.09% from two or more races. 5.66% of the population were Hispanic or Latino of any race. According to the census of 2000, the largest ancestry groups in Marshall County were English 68.2%, Scots-Irish 12.31%, Scottish 5.1%, Irish 4.22%, Welsh 2.3% and African 1.47%.

Of the 32,547 households 32.40% had children under the age of 18 living with them, 57.80% were married couples living together, 10.70% had a female householder with no husband present, and 27.70% were non-families. 24.60% of households were one person and 10.90% were one person aged 65 or older. The average household size was 2.50 and the average family size was 2.96.

The age distribution was 24.90% under the age of 18, 8.50% from 18 to 24, 29.00% from 25 to 44, 23.40% from 45 to 64, and 14.20% 65 or older. The median age was 37 years. For every 100 females, there were 94.80 males. For every 100 females age 18 and over, there were 91.50 males.

The median household income was $32,167 and the median family income was $38,788. Males had a median income of $30,500 versus $20,807 for females. The per capita income for the county was $17,089. About 11.70% of families and 14.70% of the population were below the poverty line, including 17.90% of those under age 18 and 19.30% of those age 65 or over.

At the 2010 census:

• Southern Baptist Convention (35556)
• Catholic Church (8382)
• The United Methodist Church (6908)
• Church of God (Cleveland) (2810)
• Churches of Christ (2495)
• Assemblies of God (692)
• Episcopal Church (669)
• The Church of Jesus Christ of Latter-day Saints (609)

Education is provided by Marshall County Schools. Albertville, Arab, Boaz, and Guntersville have independent city-ran schools.

United States presidential election results for Marshall County, Alabama

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2020	33,191	83.70%	5,943	14.99%	521	1.31%
2016	29,233	82.78%	4,917	13.92%	1,166	3.30%
2012	25,867	79.24%	6,299	19.30%	478	1.46%
2008	25,727	77.57%	7,038	21.22%	401	1.21%
2004	22,783	72.35%	8,452	26.84%	256	0.81%
2000	17,084	61.04%	10,381	37.09%	524	1.87%
1996	12,323	52.89%	8,722	37.43%	2,255	9.68%
1992	12,249	45.85%	10,421	39.01%	4,047	15.15%
1988	12,148	60.90%	7,357	36.88%	442	2.22%
1984	12,330	60.47%	7,704	37.78%	357	1.75%
1980	8,159	40.93%	10,854	54.45%	920	4.62%
1976	6,006	29.88%	13,696	68.14%	398	1.98%
1972	12,090	74.45%	3,894	23.98%	254	1.56%
1968	2,725	16.34%	955	5.73%	13,000	77.94%
1964	5,712	56.33%	0	0.00%	4,428	43.67%
1960	3,398	33.98%	6,595	65.94%	8	0.08%
1956	3,071	32.34%	6,329	66.66%	95	1.00%
1952	2,069	25.55%	6,011	74.22%	19	0.23%
1948	870	25.69%	0	0.00%	2,517	74.31%
1944	1,200	26.31%	3,356	73.58%	5	0.11%
1940	913	17.98%	4,142	81.55%	24	0.47%
1936	925	17.95%	4,208	81.68%	19	0.37%
1932	904	18.64%	3,836	79.09%	110	2.27%
1928	2,511	51.84%	2,322	47.94%	11	0.23%
1924	1,718	38.75%	2,629	59.31%	86	1.94%
1920	3,879	48.74%	4,041	50.78%	38	0.48%
1916	1,183	37.32%	1,944	61.32%	43	1.36%
1912	428	13.84%	1,457	47.11%	1,208	39.06%
1908	923	39.43%	1,313	56.09%	105	4.49%
1904	966	37.03%	1,336	51.21%	307	11.77%

• Albertville
• Arab (partly in Cullman County)
• Boaz (partly in Etowah County)
• Guntersville (county seat)

• Cherokee Ridge
• Douglas
• Grant
• Union Grove

• Joppa (partly in Cullman County)

• Red Apple

School districts include:

• Albertville City School District
• Marshall County School District
• Boaz City School District
• Arab City School District
• Guntersville City School District

Marshall County is home to numerous outdoor recreation areas including Lake Guntersville State Park, Cathedral Caverns State Park, and Buck's Pocket State Park.

• National Register of Historic Places listings in Marshall County, Alabama
• Properties on the Alabama Register of Landmarks and Heritage in Marshall County, Alabama

• Marshall County Economic Development Council
• Marshall County Convention & Visitors Bureau
• On the Media show of "JULY 3, 2020 The Worst Thing We've Ever Done" "This episode originally aired on June 1, 2018. It was re-broadcast on July 3, 2020. Start at time 49:00 to end about Marshall County history"

34°22′05″N 86°18′14″W / 34.36806°N 86.30389°W / 34.36806; -86.30389